Results 271 to 280 of about 1,798,975 (310)
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The floating astronomical time scale for the terrestrial Early Permian Fengcheng Formation from the Junggar Basin and its stratigraphic and palaeoclimate implications

Geological Journal, 2022
The Permian Fengcheng Formation of the Mahu Sag in the Jungar Basin is one of the most important hydrocarbon source rocks in Xinjiang oil field. The preservation of the geological records of Milankovitch cycles can be studied to understand the history of
Y. Tang   +5 more
semanticscholar   +1 more source

Astronomical time scale of a Middle Eocene lacustrine sequence from the Dongpu Sag, Bohai Bay Basin, Eastern China

Journal of Asian Earth Sciences, 2021
Being a part of the petroliferous Linqing depression, the Dongpu Sag is located in the SW part of the Bohai Bay Basin, eastern China, and is rich in oil and gas.
Dong-sheng Guo, Zhijun Jin
semanticscholar   +1 more source

Time-scale and astronomical forcing of Serbian loess-paleosol sequences

Global and Planetary Change, 2014
Abstract The loess in Vojvodina region in Northern Serbia is regarded as one of the thickest and most complete paleoclimate archives in Europe. Recent studies showed that loess in Vojvodina spans the last million years. Based on the interprofile correlation between two most important loess–paleosol sequences Stari Slankamen and Titel Loess Plateau a ...
B. Basarin   +8 more
semanticscholar   +3 more sources

A Floating Astronomical Time Scale for the Early Late Cretaceous Continental Strata in the Songliao Basin, Northeastern China

Acta Geologica Sinica - English Edition, 2020
A continuous terrestrial succession was recovered from the Songke‐2 (SK‐2) borehole in the Songliao Basin, Northeastern China. This borehole provides a unique material for further research on the continental paleoclimate during Cretaceous greenhouse ...
Xiaojuan Ma   +7 more
semanticscholar   +1 more source

Astronomical calibration of the Danian time scale

Geological Society, London, Special Publications, 2001
Abstract Ocean Drilling Program Sites 1001A (Caribbean Sea) and 1050C (western North Atlantic) display obliquity and precession cycles throughout polarity zone C27 of the late Danian stage (earliest Cenozoic time). Sliding-window spectra analysis and direct cycle counting on downhole logs and high-resolution Fe variations at both
Ursula Röhl   +3 more
openaire   +1 more source

Astronomical time scale for the middle-upper Doushantuo Formation of Ediacaran in South China: Implications for the duration of the Shuram/Wonoka negative δ13C excursion

Palaeogeography, Palaeoclimatology, Palaeoecology, 2019
The Ediacaran Period (635–541 Ma) of the Neoproterozoic records the advent of multi-cellular life on Earth. The Ediacaran Doushantuo Formation (DST Fm) contains records of some phases of this bio-evolution and profound perturbations to the global carbon ...
Yu Sui   +4 more
semanticscholar   +1 more source

Astronomical time-scale for physical property records from Quaternary sediments of the northern North Atlantic

Geologische Rundschau, 1995
Deep sea sediment cores taken between 50° and 75°N in the North Atlantic, in water depths varying between 1340 and 3850 m, were examined to provide an astronomically calibrated late Quaternary time-scale based on physical property records. Magnetic susceptibility and gamma ray attenuation porosity evaluator (GRAPE) density changes of these cores ...
J. Mienert, Jian Chi
semanticscholar   +2 more sources

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