Academic literature on the topic 'Massif du Rhodope'

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Journal articles on the topic "Massif du Rhodope"

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Kozhoukharova, Evgenia. "Precambrian obducted serpentinites in the Rhodope Massif." Review of the Bulgarian Geological Society 82, no. 1 (March 2021): 63–73. http://dx.doi.org/10.52215/rev.bgs.2021.82.1.2.

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The Precambrian metamorphic complex in the Rhodope Massif is built of two lithostratigraphic units: the lower is an ancient granite-gneiss continental crust – Prarhodopian Group (PRG), and the upper one – a Neoproterozoic metamorphosed volcano-sedimentary rock complex – Rhodopian Group (RG). The lower stratigraphic levels of the RG are occupied by an ophiolitic association consisting of serpentinites, amphibolites, and metagabbros. The serpentinites constantly occupy the same level between the continental gneisses surface of the PRG and the base of the RG. The high degree of serpentinization (85–95%) indicates low temperature hydration metamorphism on the surface of an ultrabasic ocean plate. The formation of the Rhodope ophiolitic association has taken place in a Neoproterozoic supra-subduction zone in three stages: a. serpentinization at the ocean floor; b. obduction of serpentinite fragments, scraped from soft and plastic hydrated coat of the sliding ultrabasic plate; c. SSZ-type autochthonous Neoproterozoic (610–566 Ma) basic volcanism, including and covering serpentinite bodies. This determines a heterogeneous nature of the ophiolitic association. The lower granite-gneiss complex – PRG may have been a part of some microcontinent after the breaking of the supercontinent Rodinia. The formation of a supra-subduction zone – SSZ and the obduction of serpentinite fragments started during ocean closure preceding the amalgamation of supercontinent Gondwana.
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Pipera, K., A. Koroneos, T. Soldatos, G. Poli, and G. Christofides. "Origin of the High-K Tertiary magmatism in Northern Greece: Implications for mantle geochemistry and geotectonic setting." Bulletin of the Geological Society of Greece 47, no. 1 (September 5, 2013): 416. http://dx.doi.org/10.12681/bgsg.11017.

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Tertiary plutonic and volcanic rocks cropping out in the Rhodope Massif (N. Greece) are studied using existing and new geochemical and isotopic data. Most of these rocks belong to the post-collisional magmatism formed as part of the prolonged extensional tectonics of the Rhodope region in Late Cretaceous– Paleogene time. This magmatism is considered to be of mantle origin; however, the character of the mantle source is controversial. Rock bulk chemistry and compositional variations show magmas with calc-alkaline to high-K calc-alkaline and shoshonitic features associated with magmatism at convergent margins. Initial 87Sr/86Sr, 143Nd/144Nd ratios, Pb isotopes and REE composition of the mafic rocks indicate mainly an enriched mantle source, even if some rocks indicate a depleted mantle source. Low- and High-K mafic members of these rocks coexist indicating a strongly heterogeneous mantle source. The High-K character of some of the mafic rocks is primarily strongly related to mantle enrichment by subduction-related components, rather than crustal contamination. The geochemical characteristics of the studied rocks (e.g Ba/Th,Th/Yb,Ba/La, U/Th, Ce/Pb) indicate that primarily sediments and/or sediment melts, rather than fluid released by the subducted oceanic crust controlled the source enrichment under the Rhodope Massif.
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Eleftheriadis, George. "Petrogenesis of the Oligocene volcanics from the Central Rhodope massif (N. Greece)." European Journal of Mineralogy 7, no. 5 (October 5, 1995): 1169–82. http://dx.doi.org/10.1127/ejm/7/5/1169.

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Stavrev, K. Y., and I. S. Barzova. "Direct-Photography Observations by the 2 M RCC Telescope at Nao-Rozhen: Catalogue of Plates and Archive-Data Analysis." Symposium - International Astronomical Union 161 (1994): 371–75. http://dx.doi.org/10.1017/s0074180900047690.

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The 2m Ritchey-Chrétien-Coudé (RCC) telescope of the National Astronomical Observatory, situated in the Rozhen massif of the Rhodope Mountains, started operating in 1980 (for a detailed description of the telescope see Gutcke [1979]). Since then, 2000 direct photographs have been obtained, most of them covering a 1° × 1° area on the sky with resolution 12.9 sec/mm.
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Lips, A. "Middle-Late Alpine thermotectonic evolution of the southern Rhodope Massif, Greece." Geodinamica Acta 13, no. 5 (October 2000): 281–92. http://dx.doi.org/10.1016/s0985-3111(00)00042-5.

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Lips, Andor L. W., Stanley H. White, and Jan R. Wijbrans. "Middle-Late Alpine thermotectonic evolution of the southern Rhodope Massif, Greece." Geodinamica Acta 13, no. 5 (October 2000): 281–92. http://dx.doi.org/10.1080/09853111.2000.11105375.

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Burg, Jean-Pierre, Luc-Emmanuel Ricou, Zivko Ivano, Ivan Godfriaux, Dimo Dimov, and Laslo Klain. "Syn-metamorphic nappe complex in the Rhodope Massif. Structure and kinematics." Terra Nova 8, no. 1 (January 1996): 6–15. http://dx.doi.org/10.1111/j.1365-3121.1996.tb00720.x.

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Hejl, Ewald, Herbert Weingartner, Eleftherios Vavliakis, and Antonios Psilovikos. "Macrorelief features and fission-track thermochronology of the Rila-Rhodope massif (Eastern Macedonia, Greece)." Zeitschrift für Geomorphologie 42, no. 4 (December 10, 1998): 517–30. http://dx.doi.org/10.1127/zfg/42/1998/517.

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Sinnyovsky, Dimitar. "Precambrian metamorphites as part of the petrographic diversity of Rila Geopark." Review of the Bulgarian Geological Society 82, no. 1 (March 2021): 11–29. http://dx.doi.org/10.52215/rev.bgs.2021.82.1.3.

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The petrographic diversity of Rila Mountain is an important prerequisite for the development of Rila Geopark and its nomination for UNESCO Geopark. According to the principle of the thematic geodiversity, the leading theme of the geopark – glacial landscapes, is complemented by the remarkable petrographic diversity of igneous and metamorphic rocks, in which alpine glacial forms are developed. Following a recent review of the intrusive rocks that make up the Rila-West Rhodope Batholith, the concept of Rila Geopark would not be complete without a retrospective of the metamorphic rocks that are an integral part of its petrographic diversity. The different approaches (lithodemic and lithotectonic) to the mapping of the Rila-Rhodope Massif divided the geologists into two camps. This led to a discrepancy in terminology and nomenclature of the metamorphic units, which is unacceptable in the context of the educational priority of the geopark. For the purpose of geotourism, clear and understandable interpretations are required to provoke the visitors’ interest in geological processes and phenomena, rather than confusion and perplexity. This article is a historical overview of the geological study of the metamorphic terrains in Rila Mountain with a scheme of lithodemic units based on the existing lithostratigraphic nomenclature. This approach allows the preservation of the names of the lithostratigraphic units, whose toponymic adjectives derive from well known geographical features in the Rila-Rhodope Massif. The rank term is replaced by a lithological or descriptive term, which frees the nomenclature from the dogmatic restrictions of the stratigraphic code and reduces the distance between the strictly scientific and popular science approach used for interpretation of geological information in a popular language accessible to the general public. This methodology is consistent with the approach recommended for mapping of non-stratified bodies on the Geological Map of the Republic of Bulgaria at a scale 1:50 000.
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Mouchos, E., L. Papadopoulou, B. J. Williamson, and G. Christofides. "MARIALITIC SCAPOLITE OCCURENCES FROM THE KIMMERIA-LEFKOPETRA METAMORPHIC CONTACT, XANTHI (N. GREECE)." Bulletin of the Geological Society of Greece 50, no. 4 (July 28, 2017): 1943. http://dx.doi.org/10.12681/bgsg.14244.

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Emplacement of the Xanthi Plutonic Complex within the Rhodope Massif of N. Greece created an extensive metamorphic aureole around the plutonite. The aureole contains two areas of intense scapolitization in the contacts between granodiorite and biotitegneiss and between monzonite and sandstone, the latter cross-cut by andesite dykes. This paper reports the results of a mineralogical and geochemical study into the formation of the scapolites and particularly the nature of the plutonite-derived hydrothermal fluids from which scapolites were formed.
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Dissertations / Theses on the topic "Massif du Rhodope"

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Collings, David. "The tectono-metamorphic evolution of the Rhodope Massif, Bulgaria." Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/7736/.

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In recent years the Rhodope Massif has risen in prominence due to the discovery of microdiamond in garnet from metapelites in the Greek Rhodope Mts., establishing the region as a rare UHP province. This study is the first to establish that the UHP conditions continue through to Bulgaria, owing to the discovery of a microdiamond inclusion in garnet from metapelite in the vicinity of the town of Chepelare in the Bulgarian Central Rhodope Mts. This UHP metapelite outcrops within the Chepelare Shear zone (CSZ), a ‘melange’ of meta-igneous and meta-sedimentary rocks located on the edge of the Variscan Arda dome, one of three metamorphic core complexes that dominate the regional geology. Through a combination of petrographical and geochemical analysis, the metamorphic conditions experienced by these UHP samples have been reconstructed. Two populations of metabasic units in the Central Rhodope Mts. were identified in this study; one within the melange units of the CSZ, and one as boudins in orthogneiss overlying the CSZ. The boudins are shown to be retrogressed eclogites with a suprasubduction zone origin unrelated to the metabasic units within the CSZ. Correlations are observed with Neoproterozoic/Ordovician metabasic samples previously reported from the Eastern Rhodope Mts., which represent remnants of the Variscan Orogeny in this region. Metabasic melange samples within the CSZ instead have an N-MORB affinity, and display no evidence of a shared P-T history with the UHP metapelites. Sm-Nd garnet dating of the metapelites from the CSZ performed in this study indicates a Late Cretaceous age for the UHP metamorphic event. This is significantly younger than previously reported ages, and suggests a formation history associated with the northwards subduction of the Vardar Ocean beneath the Moesian Platform during the Late Mesozoic. The present day structure of the massif is the result of complex Cenozoic tectonics following post orogenic extension and formation of the metamorphic core complexes that are observed across the Rhodope Massif.
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Bodourova, Diiana. "Positionnements subjectifs, mise en scène discursive et pluralité langagière dans les Rhodopes de l'Est (Bulgarie) : approches sociolinguistiques." Paris 5, 2009. http://www.theses.fr/2009PA05H065.

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Selon la thèse officiellement retenue par les institutions et les scientifiques bulgares, les Pomaks sont des Bulgares qui pour la plupart ont été forcés à se convertir à l'islam, durant la période de domination ottomane entre le XlVe et le XIXe siècles. Parce qu'ils se placent dans un entre-deux, entre la majorité bulgare chrétienne avec laquelle ils ont en commun la langue et la minorité turque musulmane avec laquelle ils partagent la religion, les Pomaks ont, tout au long du siècle dernier, été l'objet de politiques nationalistes, ambivalentes et controversées, des gouvernements successifs, de l'Église orthodoxe mais aussi des représentants d'une organisation pomaque nommée Rodina (Poduna, Patrie). Ils font actuellement l'objet de politiques européennes à visée ethnicisante qui cherchent à les catégoriser en tant que minorité nationale. Cette recherche présente une analyse croisée entre les discours institutionnels, politiques, médiatiques et religieux bulgares et européens, d'une part et, les discours des habitants du village rhodopien, Kondovo, recueillis lors de longs séjours sur le terrain d'enquête, d'autre part. Elle s'inscrit dans une approche d'anthropologie des pratiques langagières permettant de rendre compte des enchâssements discursifs entre perspectives macro et micro, globale et locale. Aux discours extérieurs qui tendent à homogénéiser les notions de « langue », « religion », « appartenance nationale », « appartenance ethnique » ou « identité », s'opposent l'hétérogénéité des pratiques langagières et la fluctuation des positionnements subjectifs des locuteurs, variant en fonction des situations de communication, des interlocuteurs, des échanges, etc
According to the thesis officially supported by Bulgarian institutions and researchers, Pomaks are Bulgarians who, in their majority, were forced to convert to Islam during the period of the Ottoman domination between XIV and XIX century. Since they place themselves in a 'between-two position' - between the Bulgarian Christian majority with whom they have a common language and the Turkish Muslim minority with whom they share a religion - during the last century Pomaks were in the focus of attention of ambivalent and controversial nationalist policies, consecutive governments, the Orthodox Church but also of representatives of a Pomak organisation called Rodina (Poduna, Native Land). Currently Pomaks are being affected by ethnicisation-targeted European policy attempting to categorise them as a national minority. This research introduces a cross analysis of Bulgarian as well as European institutional, political, media and religious discourses, on the one hand, and discourses of inhabitants of Kondovo village in the Rhodope Mountains, collected and compiled during the conducted extended field research, on the other. It integrates an anthropological approach of language practices allowing to elucidate the discursive interweaving between micro and macro, global and local perspectives. In that context the external discourses tending to homogenise the concepts of "language", "religion", "national belonging", "ethnic belonging" or "identity" are confronted by the heterogeneity of language practices and the fluctuation of the subjective positioning of the speakers, which vary according to the communication situations, the interlocutors or the verbal exchanges
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Kolocotroni, Constantina. "Emplacement and petrogenesis of the Vrondou granitoid pluton, Rhodope Massif, NE Greece." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/11004.

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The Vrondou pluton is an Oligocene high-K calc-alkaline composite granitoid body emplaced in the Lower Tectonic Unit of the Western Rhodope Massif, adjacent to its western margin, and borders the Strymon and Serres basins to the west and south, respectively. Hornblende-biotite quartz-monzonite and biotite-hornblende granite s.s. crop out in the central-western and southern areas, whereas biotite-hornblende granodiorite crops out in the southeastern areas. Clinopyroxene-hornblende monzonite and porphyritic monzonite occur in the central-eastern and northeastern areas. Minor rock types include gabbro, microgranular enclaves and amphibole-bearing lamprophyre dykes. Textural evidence, especially the abundant presence of plagioclase with disequilibrium zoning features (patchy zoning, calcic spikes) in the granitoids and their enclaves, suggests that hybridisation was responsible for their genesis. Enclaves are interpreted as magmatic, probably with a multi-stage crystallisation history, the final stage of crystallisation taking place in chemical and thermal equilibrium with their hosts, as is also indicated by the close chemical affinities between enclave and host ferromagnesian minerals. Major and trace element modelling suggest that the quartz-monzonites, granites and granodiorites are inter-connected by the fractionation of parental quartz-monzonite, and possibly that the monzonites and porphyritic monzonites are inter-connected by the fractionation of a parental monzonitic magma. Rare earth element and trace element patterns of the granitoids suggest that they have a common source and have features similar to magmas generated in active continental margins or post-collisional settings. The basic rock-types show subduction-related trace element enrichments and a garnet-absent source, and are inferred to have been generated from subcontinental mantle lithosphere, enriched during subduction. The Sr and Nd isotopic compositions of the granitoids and the gabbro rule out a single stage basic-to-acid fractionation process. Instead, it is proposed that basic magmas underwent fractional crystallisation concurrent with assimilation in a transient deep magma chamber to produce an initial quartz-monzonite batch, parental to the evolved rocks.
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Karloukovski, Vassil. "Magnetostratigraphy and palaeomagnetism of the area around the Momchilgrad Palaeogene depression, the East Rhodope massif." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327285.

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Hague, Paul Frederick. "The structural and volcanic evolution of tertiary basins along the southern margin of the Rhodope Massif, northeastern Greece." Thesis, University of Southampton, 1993. https://eprints.soton.ac.uk/428198/.

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MORICEAU, RICHARD. "Evolution du massif metamorphique du rhodope (grece, bulgarie) dans le contexte alpin. Structures, cinematique et origine de la deformation ductile." Rennes 1, 2000. http://www.theses.fr/2000REN10026.

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Ce travail a pour objet l'etude de la deformation a travers le massif metamorphique du rhodope, situe au cur de la chaine alpine, entre hellenides (vergence sud-ouest, grece) et balkans (vergence nord, bulgarie). Les objectifs ont ete d'identifier la part de la deformation ductile attribuable a la tectonique extensive, de caracteriser les structures extensives a l'echelle crustale, et d'etudier leurs relations avec l'epaississement. Cette etude montre que l'essentiel de la deformation synmetamorphe des unites intermediaire et inferieure du rhodope est rattache a une tectonique extensive cenozoique. Au contact entre les deux unites, la zone de cisaillement du nestos, supposee chevauchante, est reinterpretee comme une zone de cisaillement extensive a vergence sud-ouest, d'age eocene superieur. Le prolongement vers la surface de cette zone de cisaillement est observe au nord-est, du cote bulgare. Une zone de detachement extensif a regard nord, legerement anterieure, marque le flanc septentrional du massif. De l'oligocene au miocene superieur, un decollement extensif majeur s'est propage vers le sud-ouest, selon un mecanisme de type rolling hinge , et a permis l'exhumation sur 80 km d'un niveau de marbres continu au sommet de l'unite inferieure. Dans l'unite intermediaire du rhodope central, les fabriques haute temperature a lineation d'etirement o-e a ono-ese traduisent une extension d'age eocene moyen, synchrone du sous-charriage de l'unite inferieure. Les fabriques ductiles etant essentiellement liees a l'extension, l'attribution de la cinematique vers le sud a sud-ouest, dominante dans le massif, a des charriages a vergence hellenique n'est pas justifiee. Cette etude propose au contraire que le rhodope constitue la partie la plus interne des balkans, epaissie au debut du cenozoique et jusqu'a l'eocene moyen par des chevauchements a vergence nord, puis affectee par une tectonique extensive generale, de l'eocene superieur jusqu'a l'actuel.
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Dimadi, Agoro. "Comportement hydrogéologique des marbres de la bordure du Rhodope : hydrogéologie du secteur sud-ouest du massif du Falacro, Macédoine orientale, Grèce." Phd thesis, Grenoble 1, 1988. http://tel.archives-ouvertes.fr/tel-00756710.

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Cette étude concerne la partie sud-ouest du Massif du Falacro au nord de la Grèce (Macédoine orientale), un . massif de marbres limité par les plaines de Drama et de Nevrokopl et des Intrusions granitiques. Sa base imperméable est formée de schistes et gneiss. La fracturatlon représentée par quatre familles de failles 0° 20°N, 4O°-6O°N, l00°-120°N et 140°-170° a déterminé la morphologie contemporaine du massif. Elle conditionne également les écoulements souterrains et l'apparition des sources en voisinage de ces failles et le creusement des gouffres sur les failles et le creusement de la grotte Mara selon les directions 140°N et 110°N. L'évaluation des volumes d'eau infiltrée à partir des données hydroclimatiques et des volumes de l'alimentation par les gouffres prouve que le massif reçoit une alimentation supplémentaire par ailleurs. Les études hydrochlmiques, hydrodynamiques montrent que les réserves en eau dans ce massif sont faibles et que les circulations se font à deux niveaux : l'un qui est un niveau surtout fissuré dans les marbres blancs et l'autre dans le niveau des marbres graphiteux où il y a augmentation du nombre des chenaux qui aboutissent à un drain principal correspondant à l'axe des gouffres vers la source Mara. Toutes les études précédentes ont démontré l'alimentation de la source Mara par les gouffres et l'existence d'apports supplémentaires tout en permettant de différencier cette source des sources Milopotamos et Drama qui sortent au sud-est du Massif du Falacro.
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Dimadi, Agoro. "Comportement hydrogéologique des marbres de la bordure du Rhodope hydrogéologie du secteur sud-ouest du massif du Falacro, Macédoine orientale, Grèce /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37613214j.

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BONEV, KAMEN. "Limite nw du massif cristallin rhodopien. Relations avec le domaine des balkanides." Paris 6, 1996. http://www.theses.fr/1996PA066050.

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Dans le segment est-mediterraneen de la chaine alpine, les relations entre le massif cristallin du rhodope et le domaine des balkanides ont souvent ete sujets d'interpretations contradictoires. Dans cet espace, trois unites majeures ont ete distinguees au nw du rhodope. L'unite inferieure, au se, est le toit du systeme rhodopien de nappes synmetamorphiques. L'unite superieure, au nw, est la semelle de l'europe posthercynienne. Entre les deux vient une bande de schistes verts contenant des fragments d'ophiolites et d'arc insulaire. Ce sont des restes d'un domaine intermediaire situe entre le rhodope et les balkanides au temps eo-alpin. Les relations actuelles sont attribuees a la fermeture mesozoique de la tethys suivie par l'exhumation cenozoique de l'edifice alpin
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Cornelius, Nina Kaarina [Verfasser]. "UHP metamorphic rocks of the Eastern Rhodope Massif, NE Greece : new constraints from petrology, geochemistry and zircon ages / Nina Kaarina Cornelius." 2009. http://d-nb.info/99383566X/34.

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Book chapters on the topic "Massif du Rhodope"

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Burg, Jean-Pierre, Luc-Emmanuel Ricou, Laslo Klain, Zivko Ivanov, and Dimo Dimov. "Crustal-Scale Thrust Complex in the Rhodope Massif." In The Tethys Ocean, 125–49. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1558-0_4.

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Bonev, Nikolay. "Cenozoic tectonic evolution of the eastern Rhodope massif (Bulgaria): Basement structure and kinematics of syn- to postcollisional extensional deformation." In Postcollisional Tectonics and Magmatism in the Mediterranean Region and Asia. Geological Society of America, 2006. http://dx.doi.org/10.1130/2006.2409(12).

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"Environment : Past and Present." In Environmental Toxicology, edited by Sigmund F. Zakrzewski. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195148114.003.0006.

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Concern for the environment is not an entirely new phenomenon. In isolated instances, environmental and wildlife protection laws have been enacted in the past. Similarly, astute early physicians and scientists occasionally recognized occupationally related health problems within the general population. As early as 500 BC, a law was passed in Athens requiring refuse disposal in a designated location outside the city walls. Ancient Rome had laws prohibiting disposal of trash into the river Tiber. In seventeenth century Sweden, legislation was passed forbidding ‘‘slash and burn’’ land clearing; those who broke the law were banished to the New World. Although no laws protecting workers from occupational hazards were enacted until much later, the first observation that occupational exposure could create health hazards was made in 1775 by a London physician, Percival Pott. He observed among London chimney sweeps an unusually high rate of scrotal cancer that he associated (and rightly so) with exposure to soot. Colonial authorities in Newport, Rhode Island, recognizing a danger of game depletion, established the first closed season on deer hunting as early as 1639. Other communities became aware of the same problem; by the time of the American Revolution, 12 colonies had legislated some kind of wildlife protection. Following the example of Massachusetts, which established a game agency in 1865, every state had game and fish protection laws before the end of the nineteenth century (1). In 1885, to protect the population from waterborne diseases such as cholera and typhoid fever, New York State enacted the Water Supply Source Protection Rules and Regulations Program. These instances of environmental concern were sporadic. It was not until some time after World War II that concern for the environment and for the effects of industrial development on human health became widespread. The industrial development of the late eighteenth century, which continued throughout the nineteenth and into the twentieth century, converted the Western agricultural societies into industrialized societies. For the first time in human history, pervasive hunger in the western world ceased to be a problem. The living standard of the masses improved, and wealth was somewhat better distributed.
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Reports on the topic "Massif du Rhodope"

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Raicheva, Raya, Peter Marchev, Stoyan Georgiev, and Milan Ichev. Geochemistry, Mineral Composition and Conditions of Crystallization of Accessory-rich Gabbro Associated with Adakitic Rocks of the Drangovo Pluton, Rhodope Massif. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, February 2018. http://dx.doi.org/10.7546/crabs.2018.02.09.

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Raicheva, Raya, Peter Marchev, Stoyan Georgiev, and Milan Ichev. Geochemistry, Mineral Composition and Conditions of Crystallization of Accessory-rich Gabbro Associated with Adakitic Rocks of the Drangovo Pluton, Rhodope Massif. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, February 2018. http://dx.doi.org/10.7546/grabs2018.2.09.

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