Results 171 to 180 of about 1,764 (217)

Anniversaries provoke interest in lessons gained from history [PDF]

, 2012
Atko Heinsalu, Dimitri Kaljo, Olle Hints
core  

The Cabrières Biota (France) provides insights into Ordovician polar ecosystems. [PDF]

Nat Ecol Evol
Saleh F, Lustri L, Gueriau P, Potin GJ, Pérez-Peris F, Laibl L, Jamart V, Vite A, Antcliffe JB, Daley AC, Nohejlová M, Dupichaud C, Schöder S, Bérard E, Lynch S, Drage HB, Vaucher R, Vidal M, Monceret E, Monceret S, Lefebvre B.   +20 more
europepmc   +1 more source

Influence of Lamina Types and Combinations of Deep Marine Shale on Reservoir Quality in Zigong Block of Southern Sichuan Basin. [PDF]

ACS Omega
Pei X, Li X, Guo W, Huang H, Huang Y, Guo Q, Zhou M, Wang L, He S, Yu W.   +9 more
europepmc   +1 more source

Reassessing the Hirnantian macrofauna extinction in the central Anti-Atlas of southern Morocco

, 2014
Tessitore, Lorena, Vandenborucke, Thijs, Ghienne, Jean François, Dabard, Marie Pierre, LOI, ALFREDO, Harper, David   +5 more
openaire   +1 more source

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Hirnantian sea-level changes in the Baltoscandian Basin, a review

Palaeogeography, Palaeoclimatology, Palaeoecology, 2020
Abstract Correlation of Hirnantian sections of the Baltoscandian Basin reveals four major transgressive-regressive sea-level cycles related to waxing and waning of ice sheets at high Southern Hemisphere paleolatitudes. The correlation between stratigraphic members in Estonia and Latvia shows transgressions-regressions in the first half of the ...
Enli Kiipli, Tarmo Kiipli
exaly   +2 more sources

Tracking the Hirnantian glaciation using Os isotopes

Earth and Planetary Science Letters, 2010
article i nfo Article history: Here we present initial 187 Os/ 188 Os (Osi) values integrated with δ 13 Corg for the first Paleozoic section — the Ordovician/Silurian boundary GSSP at Dob's Linn, Scotland. Our 187 Os/ 188 Os data tracks major changes in climate that occurred during the Late Ordovician (Hirnantian glaciation), which coincides with the ...
Alexander J Finlay, David Selby, Darren R Grocke   +2 more
exaly   +3 more sources

Stratigraphic evidence for Hirnantian glaciation in the Alborz Mountain Ranges, northeastern Iran

Palaeogeography, Palaeoclimatology, Palaeoecology, 2017
Abstract The author examined the high-latitude Hirnantian diamictites of the Ghelli Formation and the early Silurian olive-gray shales of the Niur Formation exposed in the northeastern Alborz Mountains, Iran. These 404 m thick glacial deposits can be divided into three progradational-retrogradational cycles, each potentially controlled by the ...
exaly   +2 more sources

Taphonomy of exceptional sponge preservation in the Hirnantian Anji Biota, China

Journal of the Geological Society, 2022
The Anji Biota is a unique deposit with exceptionally preserved sponges and other organisms in deep-water, uppermost Ordovician mudstone of Zhejiang Province, China. The sponge fossils preserve remarkable details including carbonaceous preservation of soft tissues and axial filaments of spicules, but the taphonomy of the deposit has not previously been
Xuejin Wu, Joseph P. Botting, Yuandong Zhang, Lucy A. Muir, Junye Y. Ma   +4 more
openaire   +1 more source

Decreased marine organic carbon burial during the Hirnantian glaciation

Earth and Planetary Science Letters
Shengchao Yang, Junxuan Fan
exaly   +2 more sources