Results 31 to 40 of about 96,413 (305)
Stratigraphy, sedimentary environment and geochemistry of the Ruteh Formtaion in Qharkhotlou region, south-west of the Zanjan [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2019 The Ruteh Formation in the Qharkhotlou region (southwest of Zanjan) mainly consists of 52 m sandy limestones and cream to grey thin to medium-bedded limestones.
Farzaneh Nouri Nav +3 more
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2023 Background. Changes in the composition of clastic material reflect changes in both the paleogeographic environment and clast transport paths. In turn, this indicates changes in the conditions of regional development.
N. A. Orlova, M. V. Orlov
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Nature Communications, 2019 Past studies of the end-Permian extinction (EPE), the largest biotic crisis of the Phanerozoic, have not resolved the timing of events in southern high-latitudes.
C. Fielding +10 more
semanticscholar +1 more source
, 2020 The end-Permian mass extinction is the greatest biotic crisis in Earth history causing the extinction of a large number of marine and terrestrial animals globally. However, how land plants responded to the catastrophe remains controversial.
Feng Zhuo +8 more
semanticscholar +1 more source
Danmarks Geologiske Undersøgelse Serie B, 1982 In North-West Europe two mega-basins began their development during Late Carboniferous to Early Permian: The South Permian Basin stretching from eastern England into Poland , and the North Permian Basin reaching from Scotland into Denmark. These two basins were separated by the Mid North Sea High and the Ringkøbing-Fyn High which came into existence ...
Fritz Lyngsie Jacobsen +1 more
openaire +2 more sources
Shiyou shiyan dizhi, 2023 The Permian source rocks in the southern depression of the South Yellow Sea Basin have been proved to be fair-good source rocks. Based on the analysis of recent Paleozoic oil and gas exploration and research results, the thermal evolution and hydrocarbon
Qian CAO +6 more
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Trace Fossils in Permian Rocks of English Riviera UNESCO Global Geopark [PDF]
Geoconservation Research, 2021 The Permian breccias, conglomerates and sandstones of the English Riviera UNESCO Global geopark were deposited in quite harsh, desert environments just north of the Permian Equator.
Malcolm Hart, Christopher Smart
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Initial pulse of Siberian Traps sills as the trigger of the end-Permian mass extinction
Nature Communications, 2017 Mass extinction events are short-lived and characterized by catastrophic biosphere collapse and subsequent reorganization. Their abrupt nature necessitates a similarly short-lived trigger, and large igneous province magmatism is often implicated. However,
S. Burgess, J. Muirhead, S. Bowring
semanticscholar +1 more source
Postoperative care of symphysiotomy performed for severe shoulder dystocia with fetal demise
Case Reports in Women's Health, 2017 Background: Shoulder dystocia is an obstetric emergency which occurs in 0.2–3% of all births ACOG Committee on Practice Bulletins-Obstetrics and The American College of Obstetrician and Gynecologists (2002) .
Joy Anderson +2 more
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Microfacies, depositional environment, sequence stratigraphy and diagenetic process affected the Doroud Formation in the Eram Section (south Neka), north flank of central Alborz [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2020 The Permian deposits (Doroud Formation) are exposed in a wide area of central Alborz. A stratigraphic section of Permian deposits in the Eram section (South Neka) has been selected for the study of facies, depositional environments, sequence stratigraphy,
Hamideh Noroozpour
doaj +1 more source