Results 11 to 20 of about 4,814 (194)

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  

+13 more sources

A new look at the Emsian (Early Devonian), sarcopterygian fishes from the Holy Cross Mountains, Poland, with a special reference to porolepiforms

open access: yesActa Palaeontologica Polonica, 2023
Sarcopterygian remains are relatively common in the so-called “Placoderm Sandstone” (storm-origin bone-bearing breccia) from the Emsian (Lower Devonian) of Podłazie in the Holy Cross Mountains (Poland).
OLGA WILK
doaj   +1 more source

Metallogenic regularity of strontium-rich drinking natural mineral water in Devonian carbonate area in southern Hunan: Taking strontium-rich drinking mineral water in Xinxu town, Xintian county as an example

open access: yesCarsologica Sinica, 2022
The study area is located in Xinxu, Xintian county, the middle of southern Hunan, in which Devonian carbonate rocks are widely distributed in the south of N26°30'.
Xin ZHOU   +7 more
doaj   +1 more source

Geochemical characteristics and paleoenvironmental implications of carbonate rocks at the Givertian and Eifelian boundary in northeast Guangxi

open access: yesCarsologica Sinica, 2023
The Devonian period, marking the initial phase of the Late Paleozoic era, has garnered considerable attention in recent decades. This heightened interest stems from its intricate climatic fluctuations, recurrent global shifts in sea levels, and a series ...
Shijie LIU, Qi GUAN, Ming PAN
doaj   +1 more source

Early Cenozoic Eurekan strain partitioning and decoupling in central Spitsbergen, Svalbard [PDF]

open access: yesSolid Earth, 2021
The present study of field, petrological, exploration well, and seismic data describes backward-dipping duplexes comprised of phyllitic coal and bedding-parallel décollements and thrusts localized along lithological transitions in tectonically thickened ...
J.-B. P. Koehl   +3 more
doaj   +1 more source

Devonian in Turkey — a review

open access: yesGeologica Carpathica, 2010
Devonian in Turkey — a reviewThe Devonian Period is represented in Turkey by almost complete non-metamorphic sections of more than 1000 meters, which exhibit varying lithofacial associations. They are parts of thick Paleozoic sedimentary successions in the Pontides, Taurides and Arabian Plate.
Yalcin, M. Namik, Yilmaz, Isak
openaire   +3 more sources

Palaeozoic correlations and the Palaeogeography of the Sibumasu (Shan-Thai) Terrane - a brief review [PDF]

open access: yesResearch & Knowledge, 2016
Furongian sandstones yield shallow-water trilobite faunas along the length of the Sibumasu Terrane in the four regions of NW Malaysia (Langkawi), southern Thailand (Satun), the Shan States of Myanmar and the Baoshan Block of western Yunnan.
Clive Burrett   +2 more
doaj   +1 more source

Late Devonian (Frasnian–Famennian) palynomorphs from the Padeha and Bahram Formations of Shahzadeh Mohammad section, northwest of Kerman, Iran

open access: yesActa Palaeobotanica, 2022
A diverse and well-preserved microphytoplankton assemblage is reported from a measured section of Frasnian–Famennian (Upper Devonian) Padeha and Bahram Formations in Shahzadeh Mohammad area, northwestern Kerman, southeast Iran. The palynoflora assemblage
Roghayeh Rouzegar, Péter Ozsvárt
doaj   +1 more source

The Early Devonian (Emsian) acrotretid microbrachiopod Opsiconidion minor Popov, 1981, from the Alaska/Yukon Territory border and Novaya Zemlya [PDF]

open access: yesEstonian Journal of Earth Sciences, 2020
New records of the poorly known acrotretid (Biernatidae) microbrachiopod Opsiconidion minor Popov are described from middle Emsian strata of the Ogilvie Formation in east-central Alaska and the adjacent Yukon Territory, Canada, and compared with new ...
Lars E. Holmer   +3 more
doaj   +1 more source

The smallest known Devonian tetrapod shows unexpectedly derived features [PDF]

open access: yesRoyal Society Open Science, 2020
A new genus and species of Devonian tetrapod, Brittagnathus minutus gen. et sp. nov., is described from a single complete right lower jaw ramus recovered from the Acanthostega mass-death deposit in the upper part of the Britta Dal Formation (upper ...
Per E. Ahlberg, Jennifer A. Clack
doaj   +1 more source

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