Academic literature on the topic 'Globigerinoides'

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Journal articles on the topic "Globigerinoides"

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S., O. Obaje. "Taxonomic Notes on Some Species of Genus Globigerinoides from Kafe Field, Offshore Western Niger Delta, Nigeria." Journal of Geography, Environment and Earth Science International 10, no. 3 (2017): 1–7. https://doi.org/10.9734/JGEESI/2017/33852.

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The aim of the study is to identify and record the taxonomic notes on species of Genus <em>Globigerinoides</em> from the study area located in Kafe field of the offshore western Niger Delta area of Nigeria. 550 ditch cuttings samples were retrieved at 18.29 metres intervals from the five wells studied (Kafe-1, Kafe-2, Kafe-4, Kafe-5 and Kafe-6). The standard micropaleontological preparation technique for foraminiferal samples was employed. The foraminiferal contents were identified under binocular microscope and recorded. The species of the Genus <em>Globigerinoides </em>identified are <em>Glo
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Hakyemez, Aynur, and Vedia Toker. "Planktonic foraminiferal biostratigraphy from the sedimentary cover of Troodos Massif, Northern Cyprus: Remarks on Aquitanian-Langhian biozonation." Stratigraphy 7, no. 1 (2010): 33–60. http://dx.doi.org/10.29041/strat.07.1.04.

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A rich planktonic foraminiferal assemblage including two new species, Globorotalia sinuososuturalis n. sp. and Paragloborotalia lefkaraensis n. sp., have been recorded in the uppermost part of the sedimentary cover of Troodos Massif, exposed in Northern Cyprus. The continuity of chalk and marl deposits throughout the Aquitanian-Langhian time interval, with an abundant and well diversified assemblage, has provided to establish a detailed biostratigraphic framework which can be generally comparable with the recent standard and regional zonations. The mabioevents defining the zonal boundaries are
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Pal, Elonee. "Ecologic Distribution of Planktonic Foraminifera in the Bottom Sediments of the Northwestern Part of the Bay of Bengal." Journal Geological Society of India 32, no. 4 (1988): 320–26. http://dx.doi.org/10.17491/jgsi/1988/320404.

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Abstract Ecologic distribution of the four abundant species of Planktonic foraminifera Globigerina bulloides, Globigerinoides rubra, Globigerinoides triloba and Neogloboquadrina dutertrei from the bottom sediments are described. The mode of analysis of distribution pattern followed can be used effectively for determining the paleoenvironment of ancient shelf area which bordered the mainland and whose physical environmental conditions were controlled by large river systems.
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Latas, Marcin, Paul N. Pearson, Christopher R. Poole, Alessio Fabbrini, and Bridget S. Wade. "Globigerinoides rublobatus – a new species of Pleistocene planktonic foraminifera." Journal of Micropalaeontology 42, no. 2 (2023): 57–81. http://dx.doi.org/10.5194/jm-42-57-2023.

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Abstract. We describe Globigerinoides rublobatus n. sp., a new morphospecies of fossil planktonic foraminifera, from the Pleistocene sediments (∼810 ka) of the Indian Ocean and Pacific Ocean. We use image analysis and morphometry of 860 specimens from International Ocean Discovery Program Site U1483 in the tropical Indian Ocean to document morphological variability in the new morphospecies and related taxa, and we also report it from Pacific Ocean Site U1486 for the first time. The new morphospecies combines characteristics typical of Globigerinoides conglobatus (Brady, 1879) and Globigerinoid
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Yusuf, Nijem M. "Paleoenvironmental Conditions as Recorded by Globigerinoides Sacculifer and Globigerinoides Ruber from the Northern Red Sea." Journal of Applied Sciences 7, no. 2 (2007): 155–64. http://dx.doi.org/10.3923/jas.2007.155.164.

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Martinotti, Guido Menahem. "The Stratigraphic Significance of Globigerinoides ruber and Globigerinoides obliquus obliquus in the Mediterranean Middle Miocene." Micropaleontology 36, no. 1 (1990): 96. http://dx.doi.org/10.2307/1485668.

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ARAÚJO, TÂNIA MARIA FONSECA, and ALTAIR DE JESUS MACHADO. "Análise Sedimentar e Micropaleontológica (Foraminíferos) de Seções Quaternárias do Talude Continental Superior do Norte da Bahia, Brasil." Pesquisas em Geociências 35, no. 2 (2008): 97. http://dx.doi.org/10.22456/1807-9806.17941.

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Sediment from four cores of the north part of the continental upper slope, Bahia State, consist predominantly of siliciclastic mud in its bottom and carbonatic mud in the top of the majority of the studied cores. The sediment color varies from light olive gray to brownish black. The sediments are mainly composed of foraminifera, mollusk fragments, coralline algae debris, plant fragments and quartz grains. The following major foraminifera benthonic species were recorded in the studied cores: Cibicides pseudoungerianus, Bulimina marginata, Amphistegina lessonii, Cassidulina laevigata, Bolivina s
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Nugroho, Septriono Hari, Yahdi Zaim, Eko Yulianto, et al. "A Preliminary Study In Vertical Distribution Of Planktonic Foraminifera And Marine Ecological Conditions Of Simeulue Sub-Basin, Aceh, Indonesia." Bulletin Of The Geological Society Of Malaysia 72 (November 15, 2021): 137–49. http://dx.doi.org/10.7186/bgsm72202111.

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A marine sediment core EW17-09 (03˚ 28’358” latitude and 96˚ 18’788” longitude, 870 m water depth, 390 cm core length) was retrieved from the western Sumatra, Simeulue sub-basin, Indonesia. Simeulue sub-basin are situated in eastern Indian Ocean, western part of Aceh Province, which is one of the outer islands in Indonesia. This sub-basin is influenced by adjacent lands in response to tectonic and climate dynamics. The dynamics of marine ecological conditions in the past is an urgent need for providing an analogy to the changes in the future conditions. In this study, the ecological conditions
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Suárez-Ibarra, Jaime Y., Ingrid Vieira, Cristiane F. Frozza, et al. "PLANKTONIC FORAMINIFERA TEST SIZE DICTATED BY CONDITIONS IN LIFE AND POST-MORTEM." Journal of Foraminiferal Research 55, no. 3 (2025): 320–35. https://doi.org/10.61551/gsjfr.55.3.320.

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ABSTRACT In this study, we quantify the impact of environmental conditions (temperature, productivity, and salinity) and taphonomic (carbonate dissolution) processes in the test (shell) size variation of planktonic foraminifera. To do so, we measured the cross-sectional area of over 16,000 tests from core SAT-048A, recovered from the Western South Atlantic. Core SAT-048A spans the last 45 ka and was collected in a highly dynamic (palae)oceanographic setting. We perform multiple linear correlation analyses that reveal significant relations between the test sizes and the studied environmental pa
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ΜΑΡΚΟΠΟΥΛΟΥ- ΔΙΑΚΑΝΤΩΝΗ, Α., Ρ. Μ. ΜΙΡΚΟΥ, and Μ. ΠΑΠΑΔΑΚΗ. "The finding of bryozoans from the lower Pliocence of Crete (Maronia - Sitia). Systematics - Paleoecology." Bulletin of the Geological Society of Greece 34, no. 2 (2018): 503. http://dx.doi.org/10.12681/bgsg.16982.

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A rich fauna of Bryozoa from the Lower Pliocene of the Maronia district (location of Hagios loannis) had been studied. 47 species have been indentified belonging to the Cyclostomata (16) and Cheilostomata (31). This study allows to precise - based on the Foraminifers - the distribution of Bryozoans in this area of the South- East Mediterranean. Based on the zoarial forms, the bathymetry, the temperature and the bottoms, where some species live yet now, we attempt to give a reconstruction of the paleoenvironments. The Lower Pliocene age is based on the stratigraphie distribution of the followin
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Dissertations / Theses on the topic "Globigerinoides"

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Brown, Elizabeth Ann. "Taxonomy and Geochemistry of the Globigerinoides ruber-elongatus Plexus, with Paleontological Implications." Scholar Commons, 2011. https://scholarcommons.usf.edu/etd/7479.

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The reliability of foraminifera as stratigraphic index fossils, and as isotopic proxies of marine environments, is based on the assumption that the fossil concepts represent uniform species, responding consistently to their ambient environments. Understanding sources of uncertainty is, therefore, critical. In this dissertation, I explore a potential bias in the application of planktonic foraminifera utilized extensively for Cenozoic paleo-reconstruction and, to a lesser extent, biostratigraphy: the Globigerinoides ruber-elongatus plexus (‘plexus’ meaning a complex network of interconnected mem
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Regoli, Fabienne. "Diversité cryptique du zooplancton carbonaté et réponse aux changements globaux du pléistocène à l'anthropocène." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4330.

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La dynamique de la thermocline Equatoriale Pacifique est en grande partie modulée par des phénomènes climatiques majeurs tels que l'ENSO ou la mousson indo asiatique. Nous utilisons des fossiles de deux morphotypes de l'espèce de foraminifères planctoniques Globigerinoides ruber comme traceurs de la stratification à la bordure Sud du Pacifique Ouest Equatorial, afin de retracer la dynamique climatique de cette région durant les derniers 800 000 ans. Nos résultats mettent en évidence un battement de la thermocline Pacifique en réponse aux variations Glaciaire /Interglaciaire, en relation avec l
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André, Aurore. "Taxonomies moléculaire et morphologique chez les foraminifères planctoniques : élaboration d'un référentiel et cas particuliers de Globigerinoides sacculifer et Neogloboquadrina pachyderma." Phd thesis, Université Claude Bernard - Lyon I, 2013. http://tel.archives-ouvertes.fr/tel-01048643.

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Les morpho-espèces de foraminifères planctoniques sont composées d'éco-génotypes parfois différentiables sur la base de la morphologie de leur coquille. Cette découverte récente d'une diversité ainsi qualifiée de " pseudo-cryptique " ouvre des perspectives d'amélioration de la précision des reconstructions paléocéanographiques. Malheureusement, ces génotypes ont été définis de façon subjective et ne sont pas homogènes quant à leur rang taxonomique, ce qui est pourtant un pré-requis pour leur intégration dans les modèles de reconstruction. Grâce à l'application de méthodes quantitatives de déli
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Palmer, Denise D. "Late Holocene planktic foraminiferal assemblages from Orca Basin : effects of dissolution on faunal assemblages." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001693.

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Brown, Elizabeth A. "Initial Ablation of the Laurentide Ice Sheet Based on Gulf of Mexico Sediments." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3018.

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The objective of this project is to reconstruct a picture of initial Laurentide Ice Sheet retreat at the end of the Last Glacial Maximum (LGM) using geochemical proxies in Gulf of Mexico sediments, and place the reconstruction into global perspective. The project asks two questions. (1) Can a time frame be established for initial retreat of the Laurentide Ice Sheet? (2) If so, how does the timing compare to that of other large ice sheets and mountain glaciers in both hemispheres? Sediment core MD02-2550 from the anoxic Orca Basin offers excellent preservation and a high sediment accumulation r
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Arbuszewski, Jennifer. "Towards the Calibration of the Globigerinoides ruber (white) paleothermometer." Thesis, 2011. https://doi.org/10.7916/D8KS744B.

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The use of planktonic foraminiferal Mg/Ca ratios to reconstruct past sea surface temperatures (SST) is prevalent in the literature. The perceived simplicity of the underlying chemistry and ease of measurements are alluring. Canonically, temperature is thought to be the primary control on the shell Mg/Ca values. Additionally, an appeal of this proxy is that it can be combined with shell ä18O values to reconstruct changes in the local ä18O of seawater, a proxy for salinity. However, we have identified a salinity effect on the Mg/Ca signal recorded in planktonic foraminifera influencing
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Yang, Shun-Chung, та 楊順中. "Can δ44Ca be a proxy for paleoceanography? - A case study of Globigerinoides sacculifer from Western Equatorial Atlantic". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/36314371452857536234.

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碩士<br>國立臺灣大學<br>地質科學研究所<br>95<br>The δ44Ca, δ18O, and Mg/Ca ratios of fossil G. sacculifer over the past 20 ka extracted from a Caribbean core, TT9108-1GC, have been measured in order to examine the possibility of using δ44Ca as a proxy for paleoceanography. Our results indicate that the δ44Ca of G. sacculifer varies as a function of sea surface temperature (SST) and sea surface salinity (SSS). The Caribbean Sea SSS, reconstructed by combining the δ18O and Mg/Ca ratios of G. sacculifer and sea level change data, shows significant fluctuations between 36.5 and 39.5 psu during the last 20 ka.
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Chen, Chen-Yin, and 陳貞吟. "A study on the disappearance of Globigerinoides fistulosus andits relationship to the hydrological change of the tropical Pacific." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/42309041725176192798.

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碩士<br>國立臺灣大學<br>地質科學研究所<br>96<br>At about 1.7 Ma the west-east sea surface temperature gradient in the equatorial Pacific changed and the thermocline depth was suggested being shallow in the eastern Pacifict. Meanwhile, 1.7 Ma marks the disappearance of Globigerinoides fistulosus, a planktonic foraminifera species descended from Globigerinoides sacculifer by adding finger-like projections on the flattening final chambers in the middle Pliocene (2.9 Ma). This disappearance was apparently related to the change of west-east sea surface temperature gradient in the tropical Pacific. Relationship be
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Books on the topic "Globigerinoides"

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Arbuszewski, Jennifer. Towards the Calibration of the Globigerinoides ruber (white) paleothermometer. [publisher not identified], 2011.

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2

Poore, Richard Z. Planktic foraminifer census data and [delta]18O and [delta]13C analyses of Globigerinoides ruber from Marine Isotope Stage 11 sediments from Ocean Drilling Program (ODP) Site 1002. U.S. Geological Survey, 2000.

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J, Schroeder, McMahon A, and Geological Survey (U.S.), eds. Planktic foraminifer census data and [delta]18O and [delta]13C analyses of Globigerinoides ruber from Marine Isotope Stage 11 sediments from Ocean Drilling Program (ODP) Site 1002. U.S. Geological Survey, 2000.

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Poore, Richard Z. Planktic foraminifer census data and [delta]18O and [delta]13C analyses of Globigerinoides ruber from Marine Isotope Stage 11 sediments from Ocean Drilling Program (ODP) Site 1002. U.S. Geological Survey, 2000.

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Book chapters on the topic "Globigerinoides"

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Swart, P. K. "Comparisons between the Oxygen Isotopic Composition of Pore Water and Globigerinoides ruber in Sediments from Hole 817C." In Proceedings of the Ocean Drilling Program. Ocean Drilling Program, 1993. http://dx.doi.org/10.2973/odp.proc.sr.133.260.1993.

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Groeneveld, J., S. Steph, R. Tiedemann, D. Garbe-Schönberg, D. Nürnberg, and A. Sturm. "Pliocene mixed-layer oceanography for Site 1241, using combined Mg/Ca and d18O analyses of Globigerinoides sacculifer." In Proceedings of the Ocean Drilling Program, 202 Scientific Results. Ocean Drilling Program, 2006. http://dx.doi.org/10.2973/odp.proc.sr.202.209.2006.

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Kroon, D., J. J. G. Reijmer, and R. Rendle. "Mid- to late-Quaternary variations in the oxygen isotope signature of Globigerinoides ruber at Site 1006 in the western subtropical Atlantic." In Proceedings of the Ocean Drilling Program. Ocean Drilling Program, 2000. http://dx.doi.org/10.2973/odp.proc.sr.166.104.2000.

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Conference papers on the topic "Globigerinoides"

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Monteagudo, Minda M., Syee Weldeab, David W. Lea, Yair Rosenthal, and David M. Karl. "REEVALUATION OF MG/CA-TEMPERATURE CALIBRATION IN GLOBIGERINOIDES RUBER: A SEDIMENT TRAP APPROACH." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-285829.

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Brown, Elizabeth A., Manuel F. G. Weinkauf, Pamela Hallock, and Michal Kucera. "EVALUATING MORPHOSPACE DISCONTINUITY WITHIN THE GLOBIGERINOIDES RUBER-ELONGATUS PLEXUS, AND THE POTENTIAL FOR A CONSISTENT FOSSIL CLASSIFICATION SCHEME." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-285668.

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S, Thamizharasan, Barnita Banerjee, and Prosenjit Ghosh. "Himalayan upliftment enhanced moisture transport during Miocene: Evidence from clumped isotope thermometry and oxygen isotopes in Globigerinoides Quadrilobatus from the Bay of Bengal." In Goldschmidt2021. European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.6262.

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