Results 11 to 20 of about 59,970 (323)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+12 more sources

The age sequence of the detrital zircons from the Guanyindian section in Longde, the northeastern margin of the Tibetan Plateau, and its geological significance

open access: yesDizhi lixue xuebao, 2021
The precise age of the strata at the northeastern margin of the Tibetan Plateau in the Paleogene-Neogene, and the initial time when the uplift of the Plateau affected its northeastern margin, have always been two main bone contentions among geologists ...
KOU Linlin   +4 more
doaj   +1 more source

Oligocene plant assemblage from Rębiszów, Lower Silesia: First “volcanic flora” from Poland [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Fossil plant macroremains preserved in laminated diatomites from Łysa Góra near Rębiszów, Lower Silesia, have been documented for the first time. The fossil assemblage consists mostly of leaves, but fruits, seeds and sporadic flowers also occur.
Rafał Kowalski   +3 more
doaj   +1 more source

The essence of gypsum's influence on Tmax of source rocks: a case study of the Lower Ganchaigou Formation of Paleogene in western Qaidam Basin

open access: yesShiyou shiyan dizhi, 2023
Geological observation and thermal simulation experiments have revealed that the peak period of hydrocarbon generation of gypsum-bearing mudstone is often advanced in sedimentary basins, but the correlation between the amount of advance and the content ...
Wen QI   +7 more
doaj   +1 more source

Origin, timing and paleogeographic implications of Paleogene karst bauxites in the northern Transdanubian range, Hungary

open access: yesInternational journal of earth sciences, 2022
Paleogene karst bauxites in the northeastern Transdanubian Range and their cover sequences provide valuable sedimentary archives, despite their weathered nature and vague paleontological records.
P. Kelemen   +6 more
semanticscholar   +1 more source

A new xanthid crab, Neoliomera zovoensis sp. nov. (Decapoda, Brachyura), from the Lower Eocene beds of Zovo (Vestenanova, Verona, northeast Italy)

open access: yesGeologija, 2020
A new species of Neoliomera Odhner, 1925, Neoliomera zovoensis sp. nov. from the Lower Eocene (Ypresian) of Zovo (Vestenanova, Verona), which co-occurs with other decapod crustacean species in a richly fossiliferous coral-algal-reef in the Monti ...
Antonio DE ANGELI, Alessandro GARASSINO
doaj   +1 more source

Indigenous agglutinated foraminifera from the Eocene La Meseta Formation, Seymour Island, West Antarctica [PDF]

open access: yesPolish Polar Research, 2019
Here are reported the first certainly indigenous agglutinated foraminifera known for the Eocene La Meseta Formation on Seymour Island, West Antarctica. The specimens were identified as Textularia sp. and occur in the upper portion of the unit, just below
Victor C.S. Badaró
doaj   +1 more source

The Nadir Crater offshore West Africa: A candidate Cretaceous-Paleogene impact structure

open access: yesScience Advances, 2022
Evidence of marine target impacts, binary impact craters, or impact clusters are rare on Earth. Seismic reflection data from the Guinea Plateau, West Africa, reveal a ≥8.5-km-wide structure buried below ~300 to 400 m of Paleogene sediment with ...
Uisdean Nicholson   +3 more
semanticscholar   +1 more source

An early Eocene pan-gekkotan from France could represent an extra squamate group that survived the K/Pg extinction [PDF]

open access: yesActa Palaeontologica Polonica, 2023
In this paper we describe a new lizard from the early Eocene of the Cos locality in the Quercy region (near the Caylus village, Southwest France). The age of the Cos deposit has been proposed as the MP 10–11 interval, close to the transition of the ...
ANDREJ ČERŇANSKÝ   +4 more
doaj   +1 more source

LEROYI: A NEW TETHYAN LAGENID BENTHIC FORAMINIFERAL GENUS [PDF]

open access: yesEarth Sciences Pakistan, 2020
Leroyi n. gen., is introduced to include the Cretaceous-Neogene (predominantly Maastrichtian-Eocene) benthic Lagenid foraminiferids from many Tethyan localities that characterized by its slightly coiled early portion of the smooth test, later slightly ...
Haidar Salim Anan
doaj   +1 more source

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