Literatura académica sobre el tema "Geologia histórica"
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Artículos de revistas sobre el tema "Geologia histórica"
Potapova, Marina. "Geologia como uma ciência histórica da natureza". Terrae Didatica 3, n.º 1 (30 de junio de 2015): 86. http://dx.doi.org/10.20396/td.v3i1.8637480.
Texto completoMarinho, Claudio, Gisele Francelino Miguel, Joemes de Lima Simas y Pedro Wagner Gonçalves. "Elementos da História e Filosofia das ciências em livros didáticos de Geologia: uma análise temporal". Terrae Didatica 15 (14 de febrero de 2019): e019008. http://dx.doi.org/10.20396/td.v15i1.8654663.
Texto completoBustamante, Ana Maria Goulart y Sidney Ribeiro Gonzalez. "Patrimônio cultural e geologia do Quadrilátero Ferrífero". Revista Brasileira de Geografia 62, n.º 2 (16 de abril de 2018): 113–21. http://dx.doi.org/10.21579/issn.2526-0375_2017_n2_p113-121.
Texto completoNascimento, Estela Leal Chagas do, Davi Resende Messias, Lucas Portes Ramos y Carlos Roberto dos Anjos Candeiro. "História geológica da terra". Terrae Didatica 16 (11 de diciembre de 2020): e020045. http://dx.doi.org/10.20396/td.v16i0.8659651.
Texto completoNascimento, Estela Leal Chagas do, Davi Resende Messias, Lucas Portes Ramos y Carlos Roberto dos Anjos Candeiro. "História geológica da terra". Terrae Didatica 16 (11 de diciembre de 2020): e020045. http://dx.doi.org/10.20396/td.v16i0.8659651.
Texto completoFrodeman, Robert. "O raciocínio geológico: a geologia como uma ciência interpretativa e histórica". Terrae Didatica 6, n.º 2 (30 de junio de 2015): 85. http://dx.doi.org/10.20396/td.v6i2.8637460.
Texto completoDa Silva, Geilson Rodrigues y Nádia Cristina Guimarães Errobidart. "A construção histórica conceitul da Termodinâmica para o Ensino Médio". Revista Insignare Scientia - RIS 3, n.º 5 (18 de diciembre de 2020): 540–59. http://dx.doi.org/10.36661/2595-4520.2020v3i5.11526.
Texto completoSouza, Ramon Feliphe. "DO SERTÃO SAUDÁVEL À CIDADE DOENTE: SAÚDE E MEIO AMBIENTE NA HISTÓRIA DE DIAMANTINA". (SYN)THESIS 13, n.º 2 (22 de septiembre de 2021): 21–40. http://dx.doi.org/10.12957/synthesis.2020.62465.
Texto completoDias, Cristhian Filgueira y Fernanda Maria Belotti. "Análise histórica da contaminação de solo no município de Itabira/MG". Revista Ibero-Americana de Ciências Ambientais 12, n.º 3 (13 de enero de 2021): 502–15. http://dx.doi.org/10.6008/cbpc2179-6858.2021.003.041.
Texto completoAmador, Filomena. "O ensino da Geologia nas escolas portuguesas, durante o século XIX e primeira metade do século XX". Terrae Didatica 3, n.º 1 (30 de junio de 2015): 4. http://dx.doi.org/10.20396/td.v3i1.8637473.
Texto completoTesis sobre el tema "Geologia histórica"
Leite, Fátima Praxedes Rabelo. "Palinogia da formação Solimões, neógeno da Bacia do Solimões, Estado do Amazonas, Brasil : implicações paleoambientais e bioestratigráficas". reponame:Repositório Institucional da UnB, 2006. http://repositorio.unb.br/handle/10482/2475.
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Made available in DSpace on 2009-12-03T18:27:35Z (GMT). No. of bitstreams: 4 Tese Fatima Praxedes_parte 4.pdf: 243991 bytes, checksum: 01b5e54e338fca9d3a4ac0fd4e78db52 (MD5) Tese Fatima Praxedes_parte 3.pdf: 7421886 bytes, checksum: 6724346b4d1c345c2cd0a090a18539a8 (MD5) Tese Fatima Praxedes_parte 2.pdf: 8415447 bytes, checksum: 8ffaababdb84455db78213b6ef23c86c (MD5) Tese Fatima Praxedes_parte 1.pdf: 6906185 bytes, checksum: 7e25d1fefde55eef2075adeb25fd5b01 (MD5) Previous issue date: 2006
O arco de Iquitos influenciou a paisagem da região noroeste da América do Sul desde o Mioceno tardio. Reflexos da sua dinâmica de soerguimento, antes vistos apenas em afloramentos, podem também ser observados em sub-superfície. O estudo de palinologia, mineralogia e geoquímica de isótopos de uma seção da Formação Solimões possibilitou a sua correlação com as formações Pebas e Nauta da região de Iquitos. Essa correlação possibilita a aplicação direta de um arcabouço palinostratigráfico nos sedimentos. O intervalo 401 – 300 m do poço 1 AS 33 AM (Mioceno inferior / médio), depositado em ambiente principalmente de água doce com alguma influência marinha, corresponde à Formação Pebas. O intervalo seguinte 300 – 185 m (Mioceno superior / Plioceno) corresponde à camada superior da Formação Pebas, designada na literatura como ‘Uppermost Pebas’. Na seção estudada esta camada recobre discordantemente a Formação Pebas, assim como em algumas localidades no Peru. É sugerido aqui um diacronismo para essa unidade uma vez que a idade atribuída a ela é mais jovem que a descrita na literatura. A porção inferior desse intervalo (299,05 – 238,33 m) está na zona de intervalo Asteraceae e a porção superior (238,33 – 185,00m) está na subzona de intervalo Psilatricolporites caribbiensis. Não foi observada nenhuma discordância entre as duas biozonas. O último intervalo de ca. 185 m até a superfície é formado por depósitos típicos de sistema fluvial e é correlacionado aqui com a Formação Nauta. É considerado Plioceno por corresponder à parte superior da subzona de intervalo Psilatricolporites caribbiensis, idade mais jovem que a proposta anteriormente. Os resultados sistemáticos de palinologia consistem em 95 tipos identificados sempre que possível em nível específico. A maioria deles são grãos de pólen de angiospermas com 85 espécies. Apenas uma espécie de gimnosperma foi encontrada e sempre em quantidades reduzidas. De esporos, apesar muito abundantes, somente oito espécies foram identificadas. Oito novas espécies são propostas e formalmente descritas: Fenestrites garciae, Inaperturopollenites microechinatus, Inaperturopollenites elizabetei, Inaperturopollenites solimoensis, Polyadopollenites marileae, Psilaperiporites elizabetei, Psilatricolporites hoornii, Retitricolporites toigoi. _________________________________________________________________________________________ ABSTRACT
The Iquitos arch influenced significantly the landscape since its uplift in the late Miocene and it is possible to verify the forebulge dynamics, originally observed in outcrops, in the sub-surface sediments. The palynology, mineralogy and isotope geochemistry of a Miocene / Pliocene cored section in Brazil made possible the correlation of the Solimões Formation with the Pebas and Nauta formations near the Iquitos arch in Peru, now with the advantage of a biostratigraphic framework that enable a direct dating for the sediments. The interval between 401 m and 300 m (middle / upper Miocene), deposited under a mainly fresh water environment with some marine influence, corresponds to the Pebas Formation. The following interval between 300 m and 185 m (upper Miocene / Pliocene) corresponds to the ‘Uppermost Pebas’ Formation. The Uppermost Pebas Formation unconformably overlies the Pebas Formation in this section as well as in some areas in Peru. It is suggested here that the top of the Pebas Formation in Brazil is younger than in Peruvian Amazonia, and thus diachronic. The lower part of the interval (299,05 – 238,33 m) is in the Asteraceae Interval Zone and the upper part (238,33 – 185,00) is in the Psilatricolporites caribbiensis Interval Subzone. It was not observed any evidence of discontinuity between both biozones. The last interval from ca. 185,00 m to the surface is a typical fluvial system deposit and is correlated here to the Nauta Formation. It is considered Pliocene, corresponding to the upper part of the Psilatricolporites caribbiensis Interval Subzone, a younger age than the originally proposed to it. The palynological systematic results consist of 95 palynomorphs identified whenever possible up to species level. Most of them were pollen grains of angiosperms with 85 types classified. Only one species of gymnosperm was present and always in small quantity. The spores were very abundant although only eight types were identified. Eight new species are proposed and formally described: Fenestrites garciae, Inaperturopollenites microechinatus, Inaperturopollenites elizabetei, Inaperturopollenites solimoensis, Polyadopollenites marileae, Psilaperiporites elizabetei, Psilatricolporites hoornii, Retitricolporites toigoi.
Sales, Alexandre Magno Feitosa. "Estudo Morfotectônico do Setor Setentrional do Alinhamento do Rio Moji-Guaçu, Estado de São Paulo". Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/44/44136/tde-03072015-093441/.
Texto completoThe Northern portion of the Moji-Guaçu Alignment (São Paulo State) is an important morphologic feature whose geological origin remains uncertain. Morphotectonic studies along this section of the alignment have revealed several continuous and other less-consistent features showing different orientations. These structures are expressed mainly by the current organization of the drainage net. In order to carry these morphotectonic studies out several tools were employed (base surfaces maps, drainage alignments maps, and photolineaments maps), wich have led to the division of the area in domains defined by the main directions of the structures and confirmed by the analysis of ruptile structures (joints). The first and main morphotectonic domain is characterised by structures oriented roughly NW-NNW which reflect the direction of the lineament along the Moji-Guaçu and Pardo rivers. The second domain is related to the E-W- and close-oriented structure along the Rio Grande valley and other regions. The third morphotectonic domain includes widespread small-scale NE-oriented structures wich probably represent closely-spaced fractures and joints. The analysis of the whole set of structures has indicated a left-lateral transcurrent regime associated to a NNW binary. According to this model the NNW-NW, NNW-NNE, NW-SE, WNW to E-W and NE structures would correspond to the R, P, T, R\' and X fractures, respectively. Transtractive displacements along the lineament would have promoted stepped-faulting and thickening of the alluvial deposits in the Moji-Guaçu and Pardo rivers. The features known as Cabo Frio Magmatic Alignment and Rio Moji Guaçu Alignment are the main regional features. In the site where they intercept each other occurs alkaline rocks (Bauru Basin, region of Jaboticabal, Taiúva, Piranji, Aparecida do Monte Alto and Guariba (SP). These Cretaceous and Neocretaceous alkaline magmatic manifestations argue for the existence of a significant tectonic activity along both Cabo Frio Magmatic Alignment and Rio Moji-Guaçu Alignment. On the basis of this research one can conclude that the Northern portion of the Rio Moji-Guaçu Lineament ( term proposed in this work) marks out the Eastern boundary of the Bauru Basin and controls the alkaline magmatism foci, being responsible for the occurrence of rocks associated to seismic activities of the the Adamantina Formation. It also acts as a left-lateral strike-slip shear zone whose related structures are compatible with the Riedel model.
Rohn, Rosemarie. "Evolução ambiental da Bacia do Paraná durante o Neopermiano no leste de Santa Catarina e do Paraná". Universidade de São Paulo, 1995. http://www.teses.usp.br/teses/disponiveis/44/44136/tde-22062015-145002/.
Texto completoThis thesis deals with litho-, crono- and bioestratigraphiy of the Passa Dois Group, particularly of the Teresina and Rio do Rasto Formations (Serrinha and Morro Pelado Members) in order to interpret the environmental/sedimentary history of the Paraná Basin during the Neopermian. The results are supported by paleontological and lithofaciological data, including the description of 32 lithofacies, collected along 16 roads in the states of Paraná and Santa Catarina, as well as by analyses of drill-cores and geophysical logs of boreholes situated in the eastern part of the basin. The spacial distribution of 13 species of bivalves of the Teresina Formation (46 assemblages; 8 taphofacies) and 17 species of the Rio do Rasto Formation (125 assemblages; 7 taphofacies) supports the redefinition of the Pinzonella neotropica, Leinzia simillis and Palaeomutela? zones, and of the Nothoterraia acarinata-Relogiicola delicata Subzone. ln the studied area, there are also representatives of the Barbosaia angulata-Anhembia froesi and Pinzonella illusa zones, originally established for deposits of the Serra Alta and Corumbataí Formations in the State of São Paulo, yet its sparse occurrence does not allow formal amplification of the geographic area of these zones. Plant megafossils are registered in 14 outcrops of the Teresina Formation and in 133 outcrops of the Rio do Rasto Formation (for a total of 8 taphofacies). The Lycopodiopsis derbyi, Sphenophyllum paranaense and Schizoneura gondwanensis zones are here revised. Between the first two zones there exists a poorly represented, informal floristic \"interval\", which must reflect environmental changes that occurred in the transition between the Teresina and Rio do Rasto formations. Sphenophyllum is certainly a Permian genus. The S. paranaense zone is the most diversified (abundant glossopterids, ferns, sphenopsids, among others). The S. gondwanensis zone already shows a relative decline in díversity, probably because of drier climatic conditions, with survival of practically only the sphenopsids and other plants that occupied the margins of aqueous environments. ln general, the studied taphofloras are poorer than other coeval Gondwana examples, suggesting drier conditions for the Paraná Basin region. Thirteen species of conchostracans are known in the Rio do Rasto Formation, and through new investigations, the number of occurrences has increased to 136 (192 assemblages; 9 taphofacies). The conchostracans comprise evidence of low salinity of water and support the interpretation of relatively dry climatic conditions. The Cyzicus sp., Monoleaia unicostata, Paranaleaia supine zones (including the Palaeolimnadiopsis subalata Subzone) and a \"final interval\" are redefined. Representatives of the Leaiidae Family, found until almost the top of the formation, constitute strong evidence for a Permian age. The deposits of the Serra Alta, Teresina and Rio do Rasto Formations were correlated and subdivided into 11 chronostratigraphic intervals. After deposition of the lrati Formation (basal unit of the Passa Dois Group), great transgressionsregressions started again in the Paraná Basin, possibly controlled by global tectonics and by variations in rainfall. The deposits document predominantly the regressive phases. Close to the paleo-margin of the basin (Santo Antônio da Platina region), the sedimentary record is more incomplete and there is a greater abundance of calcite bearing rocks. Even so, the epicontinental, very shallow character of the basin resulted in the preservation of very similar facies from the margin to the center, masking the great unconformities which probably exist throughout the succession. The Serra Alta Formation represents the first great transgressive-regressive cycle. The lower part of the Teresina Formation, equivalent to the P.illusa Zone of the Corumbataí Formation in the State of São Paulo, corresponds to the end of this regression. During this time, there may have been some aquatic communication with the Karoo Basin, but not with a true marine environment. The rare fossils of \"marine\" affinities must be descendants of much older eurytopic marine organisms, such as some invertebrates today in the Casplan Sea. There probably were phases of great aridity during the deposition of the Teresina Formation leading to the deposition of carbonates at the margins of the \"sea-lake\"; these carbonates commonly were reworked and transported to more central areas of the basin by storm-induced currents. The broad geographical distribution of Pinzonella neotropica indicates that new rises in water level caused inundation of great areas of the margin of the basin (for example, as far as the extreme northeast of the São Paulo State and Paraguay). The last transgressive-regressive cycle recognized for the Teresina Formation must have been controlled by a marked increase in rainfall. The extinction of bivalves of the P.neotropica zone, was probably caused by decreasing salinities. The Serrinha Member records a shallow lake environment, with a great input of river-mouth sand and frequent reworking of the deposits by storm waves. The new expansion of the sedimentary limits of the basin, the decreasing salinity of the water, the lack of carbonates, the modifications of the fauna and the greater diversity of the flora attest to more humid climatic conditions during deposition of this formation. ln spite of the greater rainfall, drops in great lake level must have occurred, as indicated mainly by new changes in the bivalve faunas and by the first occurrences of eolian and fluvial facies. The Morro Pelado Member is characterized by evidences of progressive desertification. Cyclic upward-thickening and -coarsening successions are common (10-3O m thick) which must represent progradation of mouth bars after small rises in water level (related to short intervals of slightly more humid climate); at the top of the cyclic successions, are observed fluvial and/or eolian deposits and erosion surfaces. Some intraformational unconformities in the upper portions of the formation, especially in the Cândido de Abreu region, indicate major lowering of the relative base level, possibly caused by tectonic instability. The Piramboia Formation must represent the climax of aridization, and its deposition may have begun in the northern part of the basin while the Rio do Rasto Formation was still accumulating in the more central portions. Much of the paleontological data collected, together with other information concerning Gondwana, suggest that the Teresina Formation is probably of Kazanian age, and the Rio do Rasto Formation, where exposed, is of Tatarian age.
Almeida, Cláudio Magalhães de. "Taxonomia, distribuição estratigráfica e paleoecologia de ostracodes do Cretáceo Superior, Coniaciano, ao Mioceno da Bacia de Santos, Margem Continental Sul do Brasil". reponame:Repositório Institucional da UnB, 2011. http://repositorio.unb.br/handle/10482/9160.
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A bacia de Santos está localizada na margem continental sul do Brasil. Cento e vinte duas amostras foram recuperadas em três perfurações da bacia de Santos, duas na plataforma, 1-SPS-5A e 1-SPS-9, e uma no talude, 1-SCS-9A. Baseando-se nas datações relativas de microfósseis, as porções inferiores das perfurações 1-SPS-5A, 1-SCS-9A e 1-SPS-9 são atribuídas ao Coniaciano, Cretáceo Superior. A porção superior da perfuração 1-SPS-9 extende-se do Eoceno inferior ao Recente, enquanto que para as outras duas perfurações as ocorrências de ostracodes alcançam apenas o Cretáceo Superior. Neste trabalho 27 espécies de ostracodes marinhas e límnicas são identificadas. Vinte e uma são marinhas: Protocosta struevae Bertels, 1969, Argilloecia tenuis Ciampo, 1981, Cythereis rionegrensis Bertels, 1975, Soudanella sp. 1, Soudanella sp. 2, Soudanella sp. 3, Soudanella sp. 4, Majungaella sp. 1, Majungaella sp. 2, Protocosta sp., Buntonia sp., Parakrithe sp. 1, Brachycythere sp. ?Parakrithe sp. 2, Neonesidea sp. 1, Neonesidea sp. 2, Neonesidea sp. 3, Neonesidea sp. 4, Cytherella sp., Rostrocytheridae sp. 1, ?Rostrocytheridea sp. 2. Seis são límnicas: Dolerocypris kinkoensis Grekoff, 1960, Allenocytheridea lobulata Ballent, 1980, Candona sp., ?Cetacella sp., ?Fabanella sp.,?Vernoniella sp. Oito estão em aberto: Gen. 1 sp., Gen. 2 sp., Gen. 3. sp., Gen. 4 sp., Gen. 5 sp., Gen. 6 sp., Gen. 7 sp., Gen 8 sp. As ocorrências de Dolerocypris kinkoensis são restritas ao Maastrichtiano inferior corroborando datações previamente estabelecidas. Com base na amplitude superior de Allenocytheridea lobulata, fóssil-guia do Maastrichtiano inferior, foi possível alterar a datação previamente atribuída ao Campaniano inferior. A ocorrência autóctone de Cythereis rionegrensis data como Neomaastrichtiano, alterando as datações prévias atribuídas ao Maastrichtiano inferior. As ocorrências de Protocosta struveae aqui reportadas para a bacia de Santos são restritas ao Maastrichtiano superior, indicando, portanto uma origem mais antiga esta espécie, até então era considerada fóssil-guia do Daniano. Similarmente, a ocorrência autóctone de Argilloecia tenuis no Mioceno inferior indica uma origem mais antiga para esta espécie usualmente considerada como restrita ao Mioceno médio. As ocorrências de espécies de ostracodes marinhas e límnicas, bem como de oogônios de algas carófitas, permitem uma interpretação da evolução paleoambiental da bacia de Santos no intervalo cronoestratigráfico estudado. As ocorrências das espécies de ostracodes aqui apresentadas ampliam o potencial de correlações entre estratos do Atlântico Sul para o intervalo Ks-Pg. _______________________________________________________________________________ ABSTRACT
The Santos basin is located the continental southern margin of Brazil. One hundred twenty two cutting samples recovered from three wells in Santos basin, two located in the shelf, 1- SPS-5A and 1-SPS-9, and one in slope, 1-SCS-9A. Relative dating based on microfossils, the lower portions of the wells 1-SPS-5A, 1-SCS-9A and 1-SPS-9 are attributed to the Coniacian, Upper Cretaceous. The upper portion of the well 1-SPS-9 range from the Lower Eocene to the Recent while, for the other two wells, the occurrences of ostracods reach only Upper Cretaceous. In the present work 27 marine and limnic species of ostracods were identified. Twenty one species are marine: Protocosta struevae Bertels, 1969, Argilloecia tenuis Ciampo, 1981, Cythereis rionegrensis Bertels, 1975, Soudanella sp. 1, Soudanella sp. 2, Soudanella sp. 3, Soudanella sp. 4, Majungaella sp. 1, Majungaella sp. 2, Protocosta sp., Buntonia sp., Brachycythere sp. Parakrithe sp. 1, ?Parakrithe sp. 2, Neonesidea sp. 1, Neonesidea sp. 2, Neonesidea sp. 3, Neonesidea sp. 4, Cytherella sp., Rostrocytheridae sp. 1, ?Rostrocytheridea sp. 2. Six species are limnic: Dolerocypris kinkoensis Grekoff, 1960, Allenocytheridea lobulata Ballent, 1980, Candona sp., ?Cetacella sp., ?Fabanella sp.,?Vernoniella sp. Eight are in open nomenclature: Gen. 1 sp., Gen. 2 sp., Gen. 3. sp., Gen. 4 sp., Gen. 5 sp., Gen. 6 sp., Gen. 7 sp., Gen 8 sp. The occurrences of Dolerocypris kinkoensis are restrict to lower Maastrichtian and corroborate previous dating. Based in the uppermost occurrences of Allenocytheridea lobulata, fossil-index of lower Maastrichtian, it was possible to approach the dating previously attributed to lower Campanian. The authochtonous occurrence of Cythereis rionegrensis is dating as late Maastrichtian, changing previous dating attributed to lower Maastrichtian. Occurrences of Protocosta struveae herein reported for Santos basin are restricted to late Maastrichtian, therefore indicating an ealier origin for this species, before considered as fossil-index of Danian. Similarly, the authochtonous ocurrence of Argilloecia tenuis in the lower Miocene seems also to indicate an earlier origin for this species usually considered middle Miocene. The above listed occurrences of marine and limnic ostracodes species, as well as charophyte oogonia, allowed an interpretation of the paleoenviromental evolution of Santos basin of the studied stratigraphic interval. The ostracode occurrences presented herein increase the potencial for correlations between strata of South Atlantic for the interval Ks-Pg.
PITARELLO, Michele Zorzetti. "Petrografia e geoquímica das formações ferríferas bandadas do complexo arqueano granjeiro (2,54 Ga), NE do Brasil: implicações tectônicas e paleoambientais". reponame:Repositório Institucional da CPRM, 2015. http://rigeo.cprm.gov.br/xmlui/handle/doc/14852.
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Pelosi, Ana Paula de Meireles Reis. "Evolução paleogeográfica das Formações Maricá e Crespos (Neoproterozóico III) na Porção Norte da Sub-Bacia Camaquã Ocidental, Caçapava do Sul, RS". Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/44/44134/tde-12082015-144611/.
Texto completoThe main purpose of this work was the study of the paleogeographical evolution of the Maricá and Crespos formations (Neoproterozoic III) in the west portion of the Caçapava do Sul municipality, RS. For that, field works were all carried out with emphasis on mapping at 1:50.000 scale, stratigraphic sections, faciological, depositional systems and sequence analysis, and provenance and paleocurrent measurements. The studied units were the lower and intermediate portion of the Camaquã Group, characterized by thick infiling of sedimentary (Maricá Formation) and volcanogenic (Crepos Formation) rocks. The Camaquã Basin comprises tree sub-basins separated by the Caçapava do Sul and Serra das Encantadas basement highlands, and is located at south-central portion of the state of Rio Grande do Sul. It is filled by thick sedimentary and volcanogenic successions of the Camaquã Group. This group originated during the end of Neoproterozoic III and the beginning of Cambrian and is composed of tree units: Maricá Formation, Crespos Formation and Santa Bárbara Formation. The Maricá Formation is composed by five lithostratigraphic units, which are divided by erosional and flooding surfaces, as follows, from bottom to the top: (1) Lower Sandstones and Conglomerates constituted by braided fluvial plain systems showing mean vector of paleocurrent to the north (2) Lower Sandstones and Rhythmites formed by a thick turbidite and tempestite succession originated in wave- and storm-dominated marine shelf, (3) Lapilli-Tufites represented by a single volcaniclastic layer registering the pyroclastic volcanism activity in the Maricá Formation, (4) Upper Sandstones and Conglomerates formed by braided fluvial plain systems showing mean vector of paleocurrent to the northeast, and subordinately, to the east, and (5) Upper Sandstones and Rhythmites composed of deltaic sandstones and laminites. In terms of sequence stratigraphy, the units described above represent the development of two sequences, Maricá Sequence 1 and Maricá Sequence 2, separated by an erosional surface that occurs at the base of Unit 4 (upper Sandstones and Conglomerates). Provenance analysis of the Maricá Formation have indicated that the source areas were multiple, composed mainly by rocks such as granites, rhyolites, and minor metamorphic rocks. The identification of a pyroclastic layer (Unit 3) - the unique volcaniclastic unit of the Maricá Formation in the studied area -, as well as the contribution of volcanic sources, suggest the early presence of an active volcanism in the Camaquã Basin during the sedimentation of the Maricá Formation. The Crespos Formation encompasses four lithostratigraphic units, as follows: Unit 6 - Epiclastic Conglomerates and Sandstones, formed by conglomerates, lithic sandstones and epiclastic rhythmites of alluvial and fan delta systems, representing the development of a third succession into the Camaquã Group (Crespos Succession 1), which is separated at the base by an erosional surface and at the top by acid flows, Unit 7 - Volcanic Rhyolites comprising acid viscose lava flows, associated to highly explosive subaerial volcanism, Unit 8 - Intrusive Rhyolites are composicionally similar to the Volcanic Rhyolites and occur over all the studied region, and its evolution is possibly related to the same magmatism event, Unit 8 - Volcanic and Intrusive Andesites, corresponding to the magmatism of the top of the Crespos Formation in the region, overlie all of the units described above and are composicionally basic to intermediate. All of this volcanogenic units are overlain by erosional unconformity by the post-volcanic sedimentary deposits of the Santa Bárbara Formation. The great thickness of the sequences of the Maricá and Crespos formations, the facies associations, provenance and paleocurrent data, and the occurrence of a syn-sedimentary volcanism, all of these observations suggest high subsidence rates and that all of units were deposited within an unstable tectonically basin. This basin probably was an elongated rift structured in the N-NE direction with an open sea to the north. The obtained data indicate that the Camaquã Basin had its evolution related to an extensional stress regime, possibly anorogenic, associated to alkaline magmatism, but these events only develop after the end of the Brasiliano Orogeny.
Ponçano, Waldir Lopes. "Sedimentação atual aplicada a portos no Brasil". Universidade de São Paulo, 1985. http://www.teses.usp.br/teses/disponiveis/44/44131/tde-08092015-110055/.
Texto completoThis work presentes sedimentological investigations necessary to port assessment and planning, as referred to a framework of quaternary geological events. Among these the most important are believed to be the valley-cutting which took place during the wurm epoch and subsequent sea-level changes. Investigations were carried out on the vicinities of Guarás Island (PA), on Tainheiros (BA), Aratu (BA) and Sepetiba (RJ) Bays and on Potengi (RN), Santos (SP) and Itajaí-Açu (SC) estuaries. Studies undertaken in the Guarás Island region were essentially cartographic, based on analyses of bathymetric charts and aerial photographs. Results have shown migration of channels, al though their depths have been maintained throughout the investigated span of time. The inferred displacements of the channels agree with features of accretion observed in emergent surfaces. In Tainheiros, Aratu and Sepetiba Bays, cartographic and remote-sensing observations were a first step, to be complemented by systematic sampling and analysis of bottom sediments. In these cases the regional pattern of sediment and water circulation, mostly governed by paleo-valleys distribution, proved to be an important factor in determining erosion/accretion sites. In the studied estuaries stress has been put in the characterization of both and suspended sediments, as well as in water salinity, as guidelines to establish the types of estuarine circulation. This approach was developed in more detail for Santos and Itajaí-Açu estuaries. Fluvial influence grows increasingly from Potengi to Santos to Itajaí-Açu estuaires; there are no definite data to classify the first one of them, although its situation suggests a vertically mixed type. For the Porto Channel of the Santos estuary a two-layer flow with vertical mixing type was determined, whilst the São Vicente channel is vertically homogeneous, both under summer conditions of maximum fluvial discharge. Under conditions of minimum fluvial discharge the Itajaí-Açu estuary displays a salt-wedge pattern during high water, and a two-layer flow with vertical mixing pattern during the low water, both for spring tide. Time-dependent changes in granulometric characteristics of bottom sediment were investigated for Santos Bay and Itajaí-Açu estuary, this latter case including a catastrophic flooding. Some methodological review has been made, including remarks on the possibilities of dynamic interpretation of graim-size statistitcal parameters. Data from 588 samples are higly suggestive that square-deviation, skewness and kurtosis depend on the considered mean size of the sediment.
Donatti, Leandro Menezes. "Faciologia, proveniência e Paleogeografia das Formações Pirambóia e Botucatu no estado do Paraná". Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/44/44136/tde-30092015-110432/.
Texto completoThe sandstones of the succession Pirambóia - Botucatu - Serra Geral (Paleozoic-Mesozoic Paraná Basin, Southeastern Brazil), in the Paraná State, was subdivided into four facies associations. From the base for the top, these associations correspond to: A) Sand sheets on tidal plain, B) Coastal dunefields with flooded interdunes, C) Alluvial plain with braided rivers and small eolian dunes, and D) Dry dunefields. The first three associations record a wet eolian depositional system (that is, a system whose freatic level was close to the surface), the Pirambóia system. The high freatic level in this system can be attributed to the proximity of the paleocost. The fourth facies association, of dry dunefields, is put abruptly upon to the Pirambóia fluvio-eolian deposits. It corresponds to the Botucatu dry eolian depositional system. The contrast between the Pirambóia (wet) and Botucatu (dry) eolian systems is an important criterion to define the regional unconformity that separates the sandstones of these two systems. The dry system would have been interrupted by a surface of bacinal extensional, associated with the manifestation of the Serra Geral volcanism. The grain-size results confirm the coarse to conglomeratic sandstone facies (ACg) as the main feature of the superior half of the Pirambóia system. The petrographic, SEM/EDS and heavy minerals results characterize the tendence for greater chemical maturity and cementation degree of the Botucatu sandstones. The abundance of smectite cement in the sandstones of the two systems is an indication of eodiagenesis with scarcy circulating water. Iron oxides, present mainly in the Botucatu sandstones, can be related to cementation in the vadose zone, therefore in conditions of low freatic level. The poligorskite presence in subaqueous facies of the top of the Pirambóia sandstones indicates that evaporitic conditions were already present in the end of wet eolian system. The tectonic conditions would not have stayed constant, losing, in the installation of the system Botucatu, the activity degree demonstrated in the ending of the Pirambóia system. The geographical distribution of the facies and of the modal dip directions of eolian cross-beddings allow to interpret the existence of two eolian influxes in the Pirambóia system, a continental influx, from North, and a coastal one, from South. The convergence of these paleowind directions could be associated with the existence of a high area along the Guapiara alignment. The Botucatu system would have been dominated by influ7x towards SW and SE, with increasing dispersion to the top.
Artur, Antonio Carlos. "Evolução policíclica da infra-estrutura da porção sul do Estado de Minas Gerais e regiões adjacentes do Estado de São Paulo". Universidade de São Paulo, 1988. http://www.teses.usp.br/teses/disponiveis/44/44135/tde-19062015-145055/.
Texto completoThis research is a result of the geological study of an area that comprises about 40.000km², and lies at southern region of Minas Gerais state and adjoining regions of São Paulo state. This study had as the main goal, to draft an global crustal geological evolution to the infra-structure terrains of the region. Thus geological mapping were fulfilled and geological, lithological and structural data compilation were considered, and complementaryly petrographic, geochronologic and zircon typology studies were added. The infra-structure Precambrian terrains of the focused area may be grouped into Archean Barbacena and Guaxupé Complexes: transamazonic Amparo Complex; and the brazilian Pinhal and Campos Gerais Complexes. The supracrustal sequences may be ascribed to the brasilian Eleuterio and Pouso Alegre Formations and Bambui Group, and transamazonic Canastra of São João del Rei Groups and finally the Andrelandia/Itapira/Carrancas Complexes. The infra-structure terrains present policiclic and poliphasic geological evolution, that embrace the tectonic metamorphic events occurred in the Archean, in the Lower Proterozoic and Upper Proterozoic, characterized by vertical accretion and crustal reworking. In the Archean the crust was generated dominantly by vertical accretion, which was transformed, by crustal reworking into granulites, orthogneisses and migmatites. The Guaxupé Complex is composed by granulites and the Barbacena Complex has as the main constituents the orthogneisses and migmatites. The geochronological data relative to orthogneisses and migmatites range between 3,4 and 2,4 b.y. and are particularyly grouped at the intervals from 3,0-2,9; 2,8-2,7; and 2,5-2,4 b.y.. In the Lower Proterozoic the Archean lithologies were, in great amount, modified by vertical accretion and anatectics and deformational processes, making up the Amparo Complex. In the first group of transformation one may include the ubiquitous granitic emplacements specially the São Gonçalo do Sapucai, Cristalia and Porto dos Mendes granitic bodies. The crustal reworkings embrace at least two phases of migmatization of the Archean lithologies, together with new phases of deformations and transpositions. The geochronological data display two main periods of migmatization and magmatic intrusions, situated in the intervals between 2,2 and 2,1 b.y. and between 1,9 and 1,8 b.y. In the Upper Proterozoic occurred new transformations of ancient lithologies (Archean and Lower Proterozoic lithologies) by vertical accretion and crustal reworkings characterized by migmatization, responsible to the growing of Pinhal Complex and give rise ductiles and ruptiles shearing zones that leads to generation of Campos Gerais Complex and the Shear Belts of Pouso Alegre/Varginha and Ouro Fino/Jacui. The vertical accretion too intense in great part of focused area, is essentially of calcalkaline character and locally sub-alkaline and alkaline, exemplified with conspicuousness by the Jaguariuna, Morungaba, Socorro, Pinhal, Caldas, Pedra Branca, Mococa batholithes, and so on. The crustal reworking is poliphasic and may be characterized by two main phases of migmatization, followed by deformations and transpositions. Superimposed to these two phases, there is a strong transposition characterized by ruptiles and ductiles shearing events, that imprints in the rocks blastomylonitic, mylonitic and ultramylonitic structures. The radiometric data carried out in migmatites, granites and blastomylonitic gneisses provided age values of approximately 880 and 500 m.y., with concentrations of values in the intervals of 585 and 560 m.y. The ductile phase would have occurred before 560 m.y. and the ruptile phase would be situated at 490 m.y. The integration of geological observations, of the infra-structure terrains in geotectonic models becames difficult to Archean and transamazonic areas situated outside of São Francisco craton. This is because of obliteration of original features of rocks by brasilian fenomena. Thus, it was only to make the primeval characterizations of some lithologies which indicates the continental crust moulding by accretion processes as well as by crustal reworking through deformation, metamorphism and anatexis. The frequence and features of this lithologies indicate a crustal growth essentially by vertical accretions and by reworkings that affect rocks predominantly of little crustal time of residence. On the hand, concerning to brasilian areas, the integration of lithologies in ample associations and characterization of its special distribution as well as of determination of deformation types occured and of regional tectonic compartmentalization, allow us to insert crustal evolution in updated geotectonic models. In the case of investigated area the mentioned features have several characteristics in common with continental collisions areas.
Della, Giustina Maria Emilia Schutesky. "Geologia e geocronologia da sequência Vulcano-sedimentar Campinorte e do Complexo Uruaçu, província Tocantins". reponame:Repositório Institucional da UnB, 2007. http://repositorio.unb.br/handle/10482/6573.
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A Seqüência Vulcano-sedimentar Campinorte e o Complexo Uruaçu inserem-se na porção mediana do Maciço de Goiás, entre o Arco Magmático Mara Rosa e os Complexos máfico-ultramáficos de Niquelândia e Barro Alto, em contexto geológico incerto que já recebeu diversas denominações e interpretações geotectônicas, porém que permanece indefinido geocronologicamente. Dessa forma, o objetivo desse estudo é a caracterização geológica e geocronológica da Seqüência Vulcano-sedimentar Campinorte e do Complexo Uruaçu. Para tal, utilizam-se informações de campo e petrografia, aliadas às análises geocronológicas e isotópicas. A Seqüência Vulcano-sedimentar Campinorte consiste de uma unidade supracrustal, composta por metapsamitos e metapelitos, depósitos químicos e rochas metavulcânicas ácidas, e de uma suíte intrusiva associada, de composição tonalítica, granodiorítica e granítica. Análise U-Pb em zircão realizada em quartzito micáceo da Seqüência Campinorte fixa a idade máxima deposicional da seqüência supracrustal em c.a. 2191 Ma, e revela a proveniência de uma fonte única, resultante da erosão do próprio arco paleoproterozóico. As rochas graníticas apresentam idades que variam de 2179 a 2158 Ma, e não há contribuição arqueana. Idades modelo Sm-Nd (TDM) dos litotipos supracrustais e intrusivos variam de 2686 a 2216 Ma, com valores de εNd dominantemente positivos, o que indica o caráter juvenil dessas rochas. Os dados apresentados demostram que a Sequência Campinorte assemelha-se à demais províncias paleoproterozóicas descritas na Faixa Brasília e no mundo e, dessa forma, este estudo constribui para a reconstrução do supercontinente Columbia. O Complexo Uruaçu compreende gnaisses para- e ortoderivados metamorfisados em fácies anfibolito a granulito. Análises U-Pb LA-ICPMS realizadas em zircão de ortognaisses revelam idades de cristalização magmática entre 690 e 650 Ma. Sobrecrescimentos em zircão e grãos de titanita resultam em idades entre 650 e 630 Ma, que datam o metamorfismo de alto grau. Idades modelo Sm-Nd (TDM) obtidas em ortognaisses variam de 1,5 a 1,1 Ga, com valores de εNd negativos, o que indica retrabalhamento ou refusão de crosta mais antiga. Assim, o Complexo Uruaçu caracteriza um evento magmático neoproterozóico contemporâneo ao metamorfismo de alto grau, ocorrido no interior do Maciço de Goiás em função da colisão dos Crátons Amazônico e São Francisco na orogênese Brasiliana. Adicionalmente, o contexto geológico e assinatura isotópica apresentadas são comparáveis às descritas para o Complexo Anápolis-Itauçu, na porção meridional da Faixa Brasília. Tal fato sugere que ambos os complexos possam representar um extenso cinturão granulítico desenvolvido atrás do Arco Magmático de Goiás. _________________________________________________________________________________________________ ABSTRACT
The Campinorte volcano-sedimentary sequence and the Uruaçu Complex are exposed in the center of the Goiás Massif, in between the Mara Rosa Magmatic Arc and the Niquelândia and Barro Alto mafic-ultramafic complexes. This uncertain geological framework has received several geotectonic elucidations, although it still remains undefined. Therefore, the objective of this study is to characterize the geological and geochronological context of the Campinorte Volcano-sedimentary Sequence and the Uruaçu Complex, by means of field notes, petrography and U-Pb and Sm-Nd analysis. The Campinorte Volcano-sedimentary Sequence is composed by a supracrustal unit, which consists of metapsamites and metapelites, chemical deposits and acid metavolcanics, and by a related intrusive suit with tonalitic, granodioritic and granitic plutons. U-Pb analysis realized in zircon grains from a micaceous quartzite from the Campinorte Sequence sets the maximum depositional age of 2191 Ma, and reveals the provenance from a single sedimentary source, with Paleoproterozoic age. The granitic rocks present ages ranging from 2179 to 2158 Ma, and there is no Archean contribution. TDM Sm-Nd model ages from supracrustal and intrusive lithotypes vary from 2682 to 2216 Ma, with mostly positive εNd values, which disclose the juvenile character of these rocks. The data presented here is similar to other Paleoproterozoic Provinces described in the Brasília Belt and in the world and, hence, this study contributes to the reconstruction of the Columbia supercontinent. The Uruaçu Complex comprises ortho- and paragneisses metamorphosed under amphibolite to granulite conditions. U-Pb LA-ICPMS performed on zircon from orthogneisses reveals magmatic ages between 690 to 650 Ma. Zircon overgrowths and titanite grains yield ages varying from 650 to 630 Ma, which dates the high-grade metamorphism. TDM Sm-Nd model ages obtained in orthogneisses range from 1.5 to 1.1 Ga, with εNd values between +2.9 a -4.6, indicating the crustal contaminated signature of these rocks. Therefore, the Uruaçu Complex characterizes a Neoproterozoic magmatic event and coeval high-grade metamorphism, which occurred within the Goiás Massif as a function of the collision of Amazon and São Francisco cratons in the Brasiliano orogenesis. Besides, the geological context and isotopic/geochronologic signature is analogous to that from the Anápolis-Itauçu Complex, exposed in the southern Brasília Belt. This may suggests a connection between both complexes, resulting in a wide granulitic belt developed behind the Goiás Magmatic Arc.
Libros sobre el tema "Geologia histórica"
Hintze, Lehi F. Utah's spectacular geology: How it came to be. Provo, Utah: Department of Geology, Brigham Young University, 2005.
Buscar texto completoHintze, Lehi F. Geologic history of Utah. Provo, Utah: Dept. of Geological Sciences, Brigham Young University, 2009.
Buscar texto completoHintze, Lehi F. Geologic history of Utah. Provo, Utah: Dept. of Geology, Brigham Young University, 1988.
Buscar texto completoWilson, Teixeira, Linsker Roberto 1964- y Neto Calil, eds. Chapada Diamantina: Águas no sertão. São Paulo: Terra Virgem, 2005.
Buscar texto completoRubens Antonio da Silva Filho. História geológica da Bahia. Salvador, Bahia: Sociedade Brasileira de Geologia, Núcleo Bahia-Sergipe, 2010.
Buscar texto completoRoberto, Iannuzzi, Frantz José Carlos y Universidade Federal do Rio Grande do Sul. Centro de Investigação do Gondwana., eds. 50 anos de geologia: Irajá Damiani Pinto : história e memória. Porto Alegre, RS: Editora Comunicação e Identidade, 2007.
Buscar texto completoNadalin, Rubens José. Geologia na Universidade Federal do Paraná: Uma história traçada para o futuro. Curitiba: UFPR, Departamento de Geologia, 2008.
Buscar texto completoMaría del Carmen Carreón Nieto. Catálogo histórico sobre fenómenos naturales asociados a catastrofes sociales en Michoacan, 1454-1985. Morelia, Michoacán de Ocampo, México: Universidad Michoacán de San Nicolás de Hidalgo, Instituto de Investigación Históricas, 2014.
Buscar texto completoBakoš, František. Zlato na Slovensku =: Gold in Slovakia : sprievodca zlatou históriou, ťažbou a náleziskami na našom území. Bratislava: Slovenský skauting, 2004.
Buscar texto completoCapítulos de libros sobre el tema "Geologia histórica"
Barbosa, Jardel Stenio De Araujo. "DINÂMICAS OCEANOGRÁFICAS-GEOLÓGICAS ATUANTES EM NAUFRÁGIOS: UMA CONTRIBUIÇÃO DE ESTUDOS DA MORFORDINÂMICA COSTEIRA PARA A ARQUEOLOGIA NAUTICA E SUBAQUÁTICA. ESTUDO DE CASO NA BAÍA DE CÁDIZ, ESPANHA". En Interfaces entre Arqueologia e Geografia, 92–101. Editora Científica Digital, 2024. http://dx.doi.org/10.37885/231215343.
Texto completoRivadeneira, Marco. "Breve reseña histórica de la exploración petrolera de la Cuenca Oriente". En La Cuenca Oriente: Geología y petróleo, 205–27. Institut français d’études andines, 2004. http://dx.doi.org/10.4000/books.ifea.3019.
Texto completoEnrique, Álvarez Areces, Utrero Agudo María Ángeles y Baltuille Martín José Manuel. "La cantera de granito de la iglesia altomedieval de San Pedro de la Mata (Toledo): planificación, explotación y construcción". En Paisajes e historias en torno a la piedra, 391–412. Universidad Nacional de Educación a Distancia (España), 2020. http://dx.doi.org/10.5944/monografias.prehistoria.arqueologia.2020.13.
Texto completoSILVA SANCHES, CAROLINA y HELOISA DE FARIA FOLADOR. "O MUSEU DOS DINOSSAUROS E SUAS EXPOSIÇÕES: BREVE ANÁLISE COM ATRIBUTOS DE ABORDAGEM CTS/CTSA". En Itinerários de resistência: pluralidade e laicidade no Ensino de Ciências e Biologia. Editora Realize, 2021. http://dx.doi.org/10.46943/viii.enebio.2021.01.389.
Texto completoSandes, Fabiano S. y José Ângelo Sebastião Araujo Anjos. "Avaliação de Impactos Ambientais na Destinação de Resíduos Sólidos Urbanos, no Âmbito Socioeconômico". En Geologia Ambiental e Médica do Estado da Bahia, 86–101. EDUFBA, 2021. http://dx.doi.org/10.60111/978-65-00-23593-7_03.
Texto completoSantos, Fernando Nascimento y José Ângelo Sebastião Araujo Anjos. "Diagnostico das áreas de risco de deslizamento mapeadas pela Defesa Civil de Salvador em 2016". En Geologia Ambiental e Médica do Estado da Bahia, 148–81. EDUFBA, 2021. http://dx.doi.org/10.60111/978-65-00-23593-7_07.
Texto completoAmerico, Arizaca Avalos, Wilber Pastor, Fidel Huisa, Anthony Arizaca, Emmanuel Tumy, Every Choque, Gary Terroba y Harold Huisa. "ANÁLISIS DE LA DEGRADACIÓN AMBIENTAL EN LA CABECERA DE LA CUENCA DEL TITICACA: IMPACTO SOBRE LAS FUENTES DE AGUA Y SUELO". En Geologia de Engenharia e Ambiental: análises, métodos e técnicas em pesquisa, 7–23. Editora Científica Digital, 2024. http://dx.doi.org/10.37885/240516538.
Texto completoJeck, Izabel King, Ana Angelica L. Alberoni, Luiz Carlos Torres y Lorena Sampaio. "O Regime Regulatório da Plataforma Continental e Algumas Potencialidades Minerais Refletidas no Relevo Submarino". En Recursos Minerais Marinhos. Sociedade Brasileira de Geofísica - SBGf, 2023. http://dx.doi.org/10.22564/sbgfbook.cad5.2023.cap18.
Texto completoActas de conferencias sobre el tema "Geologia histórica"
Quesada Alonso, Regina. "Piedras: Sobre una geología del territorio". En VI Congreso Internacional de Investigación en Artes Visuales ANIAV 2024. València: Editorial Universitat Politècnica de València, 2024. http://dx.doi.org/10.4995/aniav2024.2024.18194.
Texto completoRomán López, Emilia. "Paisajes de la sal en Andalucía". En Seminario Internacional de Investigación en Urbanismo. Barcelona: Instituto de Arte Americano. Universidad de Buenos Aires, 2013. http://dx.doi.org/10.5821/siiu.5976.
Texto completoAlcocer Santos, Pedro. "Biosfera cultural Primavera: procesos de construcción territorial en el borde del Bosque La Primavera". En Seminario Internacional de Investigación en Urbanismo. Barcelona: Facultad de Arquitectura. Universidad de la República, 2015. http://dx.doi.org/10.5821/siiu.6192.
Texto completoGiovanella, Jonata, Aurora Rupp, Randi Raddatz, Roberta Andressa Pereira, Daiane Ronchi y Camila Seibt. "SALA VERDE - NASCENTES / PROTETORES DA BIODIVERSIDADE". En I Congresso Nacional On-line de Conservação e Educação Ambiental. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1747.
Texto completoPeimbert Duarte, Alejandro J. "Recuperar las ruinas: espacio público y prospectiva del paisaje post-industrial de Mexicali". En International Conference Virtual City and Territory. Mexicali: Universidad Autónoma de Baja California, 2010. http://dx.doi.org/10.5821/ctv.7647.
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