Výsledky vyhledávání - "James S. Eldrett"

Akademický článek

New Constraints on Global Geochemical Cycling During Oceanic Anoxic Event 2 (Late Cretaceous) From a 6‐Million‐year Long Molybdenum‐Isotope Record

Autor: Alexander J. Dickson, Hugh C. Jenkyns, Erdem Idiz, Tim C. Sweere, Melissa J. Murphy, Sander H. J. M. van den Boorn, Micha Ruhl, James S. Eldrett, Donald Porcelli

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 22, Iss 3, Pp n/a-n/a (2021)

Abstract Intervals of extreme warmth are predicted to drive a decrease in the oxygen content of the oceans. This prediction has been tested for the acme of short (

Externí odkaz: https://doaj.org/article/c854fd9d2f794f62b8bd2eee45f42ddd

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Middle Oxfordian carbon cycle perturbation expressed in the Smackover Formation, Gulf of Mexico

Autor: James S. Eldrett

Publikováno v: Geology. 50:500-505

The Middle–Late Jurassic opening of the central Atlantic and proto-Caribbean seaways connecting the Pacific with the Tethys Ocean combined with rising sea level led to a major oceanographic and climatic reorganization conducive to the development o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::83dc742d3435703068f5f6a1f7f5c9a0
https://doi.org/10.1130/g49662.1

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Centennial to millennial variability of greenhouse climate across the mid-Cenomanian event

Autor: Daniel Minisini, Brendan Lutz, Stephen R. Meyers, Chao Ma, Linda A. Hinnov, Steven C. Bergman, James S Eldrett

Publikováno v: Geology. 50:227-231

Centennial- to millennial-scale climate variations are often attributed to solar forcing or internal climate system variability, but recognition of such variations in the deep-time paleoclimate record is extremely rare. We present an exceptionally we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::803c2a7503185edf14112fbafd6ecee2
https://doi.org/10.1130/g48734.1

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Changing inputs of continental and submarine weathering sources of Sr to the oceans during OAE 2

Autor: Chris Holmden, Lucien Nana Yobo, Alan D. Brandon, James S Eldrett, Kimberly V. Lau

Publikováno v: Geochimica et Cosmochimica Acta. 303:205-222

Ocean anoxic events (OAE) are characterized by increased organic content of marine sediment on a global scale with accompanying positive excursions in sedimentary organic and inorganic δ 13C values. To sustain the increased C exports and burial requ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f761ed401acd10bda62f1e7e64bf69a
https://doi.org/10.1016/j.gca.2021.03.013

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Controls on the Cd-isotope composition of Upper Cretaceous (Cenomanian–Turonian) organic-rich mudrocks from south Texas (Eagle Ford Group)

Autor: Alex Dickson, Don Porcelli, Tim C. Sweere, Melissa J. Murphy, Sander H. J. M. van den Boorn, Erdem Idiz, Hugh C. Jenkyns, James S Eldrett, Micha Ruhl, Gideon M. Henderson

Publikováno v: Geochimica et Cosmochimica Acta. 287:251-262

The isotopic composition of Cd buried in marine sediments may preserve valuable palaeoenvironmental information on past ocean redox conditions or biological cycling. It is unclear, however, how the Cd-isotope composition of the sedimentary record ref

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cc01792bca9c9676d24f3ccbdac0416
https://doi.org/10.1016/j.gca.2020.02.019

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High resolution osmium data record three distinct pulses of magmatic activity during cretaceous Oceanic Anoxic Event 2 (OAE-2)

Autor: Shawn Wright, James S Eldrett, Daniel L. Sullivan, Alan D. Brandon, Daniel Minisini, Steven C. Bergman

Publikováno v: Geochimica et Cosmochimica Acta. 285:257-273

Oceanic Anoxic Event 2 (OAE-2) occurred at the Cenomanian-Turonian boundary (∼94.1 Ma) and was a time of profound global changes in ocean chemistry and the carbon cycle. This event was characterized by a positive carbon isotope excursion (CIE) caus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e458a69033daf58b8c177ab5923c25ba
https://doi.org/10.1016/j.gca.2020.04.002

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