Výsledky vyhledávání - "Clara T Bolton"

Akademický článek

Environmental Controls of Size Distribution of Modern Planktonic Foraminifera in the Tropical Indian Ocean

Autor: Michael B. Adebayo, Clara T. Bolton, Ross Marchant, Franck Bassinot, Sandrine Conrod, Thibault deGaridel‐Thoron

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 24, Iss 4, Pp n/a-n/a (2023)

Abstract Paleoceanographic studies often rely on abundance changes in microfossil species, with little consideration for characteristics such as organism size, which may also be related to environmental changes. Using a tropical Indian Ocean (TIO) co

Externí odkaz: https://doaj.org/article/6bc734eab0b34ecf80f1b7c541d923a8

Zobrazit plný text záznamu

Akademický článek

Controls on Alkenone Carbon Isotope Fractionation in the Modern Ocean

Autor: Samuel R. Phelps, Heather M. Stoll, Clara T. Bolton, Luc Beaufort, Pratigya J. Polissar

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 22, Iss 12, Pp n/a-n/a (2021)

Abstract Carbon isotope records from alkenone biomarkers (εp37:2) produced by haptophyte algae are frequently used for atmospheric CO2 paleobarometry, but this method has yielded inconsistent results during periods where CO2 variations are known ind

Externí odkaz: https://doaj.org/article/3a865683465549fbbde662723d917390

Zobrazit plný text záznamu

Neogene South Asian monsoon rainfall and wind histories diverged due to topographic effects

Autor: Anta-Clarisse Sarr, Yannick Donnadieu, Clara T. Bolton, Jean-Baptiste Ladant, Alexis Licht, Frédéric Fluteau, Marie Laugié, Delphine Tardif, Guillaume Dupont-Nivet

Publikováno v: Nature Geoscience
Nature Geoscience, 2022, 15 (4), pp.314-319. ⟨10.1038/s41561-022-00919-0⟩

International audience; The drivers of the evolution of the South Asian Monsoon remain widely debated. An intensification of monsoonal rainfall recorded in terrestrial and marine sediment archives from the earliest Miocene (23–20 million years ago

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77cb23d171cf63693481f107353e6c2c
https://doi.org/10.1038/s41561-022-00919-0

Zobrazit plný text záznamu

Akademický článek

Decrease in coccolithophore calcification and CO2 since the middle Miocene

Autor: Clara T. Bolton, María T. Hernández-Sánchez, Miguel-Ángel Fuertes, Saúl González-Lemos, Lorena Abrevaya, Ana Mendez-Vicente, José-Abel Flores, Ian Probert, Liviu Giosan, Joel Johnson, Heather M. Stoll

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-13 (2016)

The impact of future and past carbonate chemistry changes on calcifying plankton is poorly understood. Here, the authors show that coccolithophore degree of calcification decreased significantly between 6 and 4 million years ago, in line with declini

Externí odkaz: https://doaj.org/article/c7a206a95d5b4f9e99006bbd593f1a55

Zobrazit plný text záznamu

The Late Miocene Biogenic Bloom : A globally distributed but not an ubiquitous event

Autor: Quentin PILLOT, Baptiste Suchéras-Marx, Anta-Clarisse Sarr, Clara T Bolton, Yannick Donnadieu

The Late Miocene Biogenic Bloom (LMBB) is a late Miocene to early Pliocene oceanographic event characterized by high accumulation rates of opal from diatoms and calcite from calcareous nannofossils and planktic foraminifera. This multi-million year e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68d84562b1037ec08b65b651d936d7d2
https://doi.org/10.1002/essoar.10512673.1

Zobrazit plný text záznamu

Drivers of late Miocene tropical sea surface cooling: A new perspective from the equatorial Indian Ocean

Autor: Claire Martinot, Clara T. Bolton, Anta‐Clarisse Sarr, Yannick Donnadieu, Marta Garcia, Emmeline Gray, Kazuyo Tachikawa

Publikováno v: Paleoceanography and Paleoclimatology
Paleoceanography and Paleoclimatology, American Geophysical Union, 2022, pp.e2021PA004407. ⟨10.1029/2021pa004407⟩
Paleoceanography and Paleoclimatology, 2022, 37 (10), pp.e2021PA004407. ⟨10.1029/2021pa004407⟩

International audience; During the late Miocene, global cooling occurred alongside the establishment of near-modern terrestrial and marine ecosystems. Significant (3 to 5 °C) sea surface cooling from 7.5 to 5.5 Ma is recorded by proxies at mid to hi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14c28874cfb903cf3c3e814ccaf8cf25
https://hal.archives-ouvertes.fr/hal-03807776/document

Zobrazit plný text záznamu

Secular and orbital-scale variability of equatorial Indian Ocean summer monsoon winds during the late Miocene

Autor: Emmeline Gray, Anta-Clarisse Sarr, Gianluca Marino, Eelco J. Rohling, Julia Lübbers, Kazuyo Tachikawa, Ann Holbourn, Nils Andersen, Wolfgang Kuhnt, Clara T Bolton, Katharine M. Grant

Publikováno v: Climate of the Past
Climate of the Past, 2022, 18, pp.713-738. ⟨10.5194/cp-18-713-2022⟩

In the modern northern Indian Ocean, biological productivity is intimately linked to near-surface oceanographic dynamics forced by the South Asian, or Indian, monsoon. In the late Pleistocene, this strong seasonal signal is transferred to the sedimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5062961bff0bafb51cd7154be2755230
https://hal.science/hal-03384903

Zobrazit plný text záznamu

Enhanced Late Miocene Chemical Weathering and Altered Precipitation Patterns in the Watersheds of the Bay of Bengal Recorded by Detrital Clay Radiogenic Isotopes

Autor: Wolfgang Kuhnt, Clara T Bolton, Huang Huang, Emmeline Gray, Ed C Hathorne, Liviu Giosan, Daniel Gebregiorgis, Martin Frank, Lisa Bretschneider, Ann Holbourn

Publikováno v: Paleoceanography and Paleoclimatology
Paleoceanography and Paleoclimatology, 2021, 36 (9), pp.e2021PA004252. ⟨10.1029/2021pa004252⟩
Paleoceanography and Paleoclimatology, American Geophysical Union, 2021, 36 (9), pp.e2021PA004252. ⟨10.1029/2021pa004252⟩

The late Miocene was a period of declining CO2 levels and extensive environmental changes, which likely had a large impact on monsoon strength as well as on the weathering and erosion intensity in the South Asian Monsoon domain. To improve our unders

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d70104413c1a302c2fde9a67bf5883b
https://hal.science/hal-03335643/document

Zobrazit plný text záznamu

Supplementary material to 'Secular and orbital-scale variability of equatorial Indian Ocean summer monsoon winds during the late Miocene'

Autor: Clara T. Bolton, Emmeline Gray, Wolfgang Kuhnt, Ann E. Holbourn, Julia Lübbers, Katharine Grant, Kazuyo Tachikawa, Gianluca Marino, Eelco J. Rohling, Anta-Clarisse Sarr, Nils Andersen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a472970c36a878f9cfe4c01ce63f12f
https://doi.org/10.5194/cp-2021-77-supplement

Zobrazit plný text záznamu

Evidence of a South Asian Proto-Monsoon During the Oligocene-Miocene Transition

Autor: Pallavi Anand, Stephen P. Hesselbo, Sev Kender, Kate Littler, Charlotte Beasley, Clemens V. Ullmann, Katrina Nilsson-Kerr, Clara T Bolton, Melanie J. Leng, Liviu Giosan

Publikováno v: e2021PA004278
Paleoceanography and Paleoclimatology
Paleoceanography and Paleoclimatology, American Geophysical Union, 2021, 36 (9), pp.e2021PA004278. ⟨10.1029/2021pa004278⟩
Paleoceanography and Paleoclimatology, 2021, 36 (9), pp.e2021PA004278. ⟨10.1029/2021pa004278⟩

International audience; The geological history of the South Asian monsoon (SAM) before the Pleistocene is not well-constrained, primarily due to a lack of available continuous sediment archives. Previous studies have noted an intensification of SAM p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2583974f026a80e19acf7db72b28db51
https://hdl.handle.net/11250/2989590

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání