Results 21 to 30 of about 407 (173)
Geofluids, 2021 With the further exploration and development of shale oil and gas, cycle division of fine-grained sedimentary rock strata has been increasingly highly focused on by scholars. Owing to the application of the theory of classical sequence stratigraphy based
Ledan Yu +4 more
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Petroleum Exploration and Development, 2008 According to the detailed analysis of drilling data, together with the interpretation of seismic section, the Mesozoic of Suibin Depression is divided into four second-order sequences and eight third-order sequences.
Shao-bin GUO, Hong-liang WANG
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Frontiers in Earth Science, 2023 The shale of the upper Es4 formation (Es4u), deposited during the Eocene in the Boxing Subsag of the Dongying Sag, is a typical set of lime-rich lacustrine shale in a continental rift basin.
Zhengwei Fang +6 more
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International Journal of Mining Science and Technology, 2018 Using the large-scale thick 4# coal seam from the Mid-Jurassic in the southern Ordos Basin as an example, this paper studied the net primary productivity (NPP) level of the Mid-Jurassic peatland, and discussed its control factors.
Dongdong Wang +4 more
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Energy Geoscience, 2023 Restoring the deposition velocity during evolution in basin analysis is an important aspect. The restoration of high-resolution deposition velocity—the deposition velocity over a short geological period—can improve the precision of basin analysis and ...
Baonian Wu, Zhijun Jin
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GENERALIZED MILANKOVITCH CYCLES AND LONG-TERM CLIMATIC HABITABILITY [PDF]
The Astrophysical Journal, 2010 Although the Earth's orbit is never far from circular, terrestrial planets around other stars might experience substantial changes in eccentricity that could lead to climate changes, including possible "phase transitions" such as the snowball transition (or its opposite).
Spiegel, David S. +4 more
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Rivista Italiana di Paleontologia e Stratigrafia, 2016 Toarcian sections studied mainly in Europe have revealed the incidence of Milankovitch forcing with a well-developed, highly stable, 405 ky component of eccentricity, a short-term eccentricity of ~100 kyr, the cycle of obliquity ~36 kyr, and the ...
FRANCISCO J. RODRÍGUEZ-TOVAR +3 more
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Milankovitch cycles and carboniferous climate
Geophysical Research Letters, 1993 Cyclical Permo‐Carboniferous sea level fluctuations have long been linked to glacial‐interglacial fluctuations on Gondwanaland. Similar to the Pleistocene, such fluctuations may in turn have been driven by variations in orbital insolation forcing. Herein we report results from climate model simulations that examine the effect of Milankovitch insolation
Thomas J. Crowley +2 more
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Integrated bio- and cyclostratigraphy of Middle Triassic (Anisian) ramp deposits, NW Bulgaria
Geologica Carpathica, 2019 A cyclostratigraphic interpretation of peritidal to shallow-marine ramp deposits of the early Middle Triassic (Anisian) Opletnya Member exposed in outcrops along the Iskar River gorge, NW Bulgaria, is presented.
Ajdanlijsky George +2 more
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Exo-Milankovitch Cycles. I. Orbits and Rotation States [PDF]
The Astronomical Journal, 2018 Abstract The obliquity of the Earth, which controls our seasons, varies by only ∼2.°5 over ∼40,000 years, and its eccentricity varies by only ∼0.05 over 100,000 years. Nonetheless, these small variations influence Earth’s ice ages. For exoplanets, however, variations can be significantly larger.
Deitrick, Russell +5 more
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