Results 81 to 90 of about 3,343 (212)

(Table A1) Stable isotope ratios and paleotemperature calculation of selected planktonic foraminifera from late Campanian and Maastrichtian sediments of DSDP Hole 86-577A from the Shatsky Rise, North Pacific

, 2003
Paleotemperature estimates were calculated using the equation of Erez and Luz (1983), with seawater delta18O = -1.2 per mil PDB corresponding to a continental ice-free world (Shackleton and Kennett, 1975)
Gerta Keller (6886058), Stüben, Doris, Zsolt Berner (7909343), Abramovich, Sigal, Sigal Abramovich (477726), Doris Stüben (2529469), Keller, Gerta, Berner, Zsolt   +7 more
core   +1 more source

Thermal and Structural Reconstruction of an Eroded Foreland Basin: Central Appalachian Basin, USA

Basin Research, Volume 38, Issue 4, July–August 2026.
New low‐temperature thermochronology and modelling reveal a complex thermal history for the central Appalachian Basin. Results indicate Carboniferous exhumation of the fold‐thrust belt and Mesozoic heating in the foredeep linked to the Rome Trough. Deeply buried Devonian source rocks were consequently pushed past the peak oil and gas windows.
Kristopher L. Symanski, Magdalena Ellis Curry, Brandon Lutz, Paul O'Sullivan   +3 more
wiley   +1 more source

End-Cretaceous extinction in Antarctica linked to both Deccan volcanism and meteorite impact via climate change

Nature Communications, 2016
The cause of the end-Cretaceous mass extinction is still debated due to difficulties separating the influences of two closely-timed potential causal events (massive volcanism and meteorite impact).
Sierra V. Petersen, Andrea Dutton, Kyger C. Lohmann   +2 more
doaj   +1 more source

Thermophilization: Concepts, Methods, and Implications of Changes in Community Composition due to Global Warming

Global Change Biology, Volume 32, Issue 8, August 2026.
As many species shift their geographic ranges coldward due to global warming, communities will undergo “thermophilization”—the increasing relative abundance of warm‐adapted (“thermophilic”) species and the concomitant decrease of cold‐adapted species over time.
Kenneth J. Feeley, Evelin Iseli, Billur Bektaş, Rubén D. Manzanedo, Crystal H. McMichael, Jake M. Alexander, Janneke Hille Ris Lambers   +6 more
wiley   +1 more source

Lake Baikal paleotemperature record derived from the methylation of brGDGTs

An 8.6-million-year record of paleotemperature change from Lake Baikal, Russia, derived from the methylation of sedimentary brGDGTs. Paleotemperatures were estimated from MBT'5Me using the global lakes regression of for lake samples with IR6Me values ≤ 0.
Lindemuth, Emma, Vachula, Richard, Peck, John A, Swann, George E A, Polissar, Pratigya J, Tarasov, Pavel E, Prokopenko, Alexander A, Shichi, Koji, Russell, James M, Kashiwaya, Kenji, Novak, Joseph B   +10 more
core   +1 more source

Supplemental Material: An extreme climate gradient-induced ecological regionalization in the Upper Cretaceous Western Interior Basin of North America

, 2020
Additional methods descriptions, figures, tables, and paleotemperature and paleobotany ...
et al. (281964), Landon Burgener (9915491)   +1 more
core   +1 more source

Paleoenvironment Variability during Termination I at the Reykjanes Ridge, North Atlantic

Geosciences, 2018
The micropaleontological study (radiolarians and foraminifera) of the sediment core AMK-340, Reykjanes Ridge, North Atlantic, combined with the radiocarbon dating and oxygen and carbon isotopic record, provided data for the reconstruction of the summer ...
Alexander Matul, Max S. Barash, Tatyana A. Khusid, Padmasini Behera, Manish Tiwari   +4 more
doaj   +1 more source

Reconstruction of a paleotemperature record from 0.3-3.7 ka for subtropical South China using lacustrine branched GDGTs from Huguangyan Maar

, 2015
The concentrations of glycerol dialkyl glycerol tetraethers (GDGTs) in catchment soils, suspended particulate matter (SPM), lake bottom sediments, and sediment cores from Huguangyan Maar, subtropical South China, were investigated.
Hu, Jianfang, Wei, Gangjian, Yang, Xiaoqiang, Ouyang, Tingping, Spiro, Baruch, Zhou, Haoda, Peng, Ping'an, Jia, Guodong   +7 more
core   +1 more source

Applicability of the TEX86 Paleotemperature Proxy on the Peterborough Member of the Oxford Clay Formation

, 2023
Jurassic sea surface temperature is often estimated using the stable isotope compositions of carbonate and phosphatic fossils. However, in instances when these fossils are not available, organic proxies have become increasingly employed.
Charissa Lindquist (17092591)
core   +1 more source

(Appendix C) Stable isotope ratios and paleotemperature calculation of selected planktonic foraminifera from Maastrichtian sediments of DSDP Hole 74-525A from Walvis Ridge, South Atlantic

, 2003
Absolute age estimates were determined based on average sedimentation rates within each planktonic foraminiferal biozone and magnetochron. Paleotemperature estimates were calculated using the equation of Erez and Luz (1983), with seawater delta18O=-1.2 ...
Gerta Keller (6886058), Abramovich, Sigal, Sigal Abramovich (477726), Keller, Gerta   +3 more
core   +1 more source