Results 71 to 80 of about 538 (169)
Taking organic-rich shale in the first member of Cretaceous Qingshankou Formation in the Gulong Sag, northern Songliao Basin as an example, this study examined the lithofacies classification, petrological characteristics, pore size distribution and their
Bo LIU +6 more
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Milankovitch cycles in an equatorial delta from the Miocene of Borneo
The factors controlling sedimentary cyclicity in deltaic systems are a subject of intense debate, and more research, in different deltaic environments and time periods, is needed to better understand the possible mechanisms. Offshore and Pleistocene case studies are more common than proximal and more ancient, greenhouse-climate examples.
Nathan Marshall +3 more
openaire +5 more sources
Methane and Milankovitch cycles [PDF]
J. M. ADAMS, H. FAURE, N. PETIT-MAIRE
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Interglacials, Milankovitch Cycles, and Carbon Dioxide
15 pages, 8 figures.
openaire +2 more sources
Would Adding the Anthropocene to the Geologic Time Scale Matter?
Abrupt planetary change forced by the cumulative and overwhelming impacts of human activities in the mid‐twentieth century supports a new geologic epoch, named after Anthropos, the agent of this change.
Francine M. G. McCarthy +3 more
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Integrated bio- and cyclostratigraphy of Middle Triassic (Anisian) ramp deposits, NW Bulgaria
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
doaj +1 more source
The Milankovitch Theory Revisited to Explain the Mid-Pleistocene and Early Quaternary Transitions
The theory of orbital forcing as formulated by Milankovitch involves the mediation by the advance (retreat) of ice sheets and the resulting variations in terrestrial albedo. This approach poses a major problem: that of the period of glacial cycles, which
Jean-Louis Pinault
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The Dependence of Earth Milankovitch Cycles on Martian Mass
Abstract The Milankovitch cycles of Earth result from gravitational interactions with other bodies in the solar system. These interactions lead to slow changes in the orbit and angular momentum vector of Earth, and correspondingly influence Earth’s climate evolution. Several studies have shown that Mars may play a
Stephen R. Kane +2 more
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Marine terrestrial transitional sedimentary rocks of Renlou Coal Mine are developed in coal bearing rock formations, which exhibits obvious cyclicity. These sedimentary cycles have a good correspondence with astronomical cycle signals.
Guodong Shi, Duoxi Yao, Xuekuan Shi
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Global Carbon Cycle Recorded in the Deep-sea Sediments and Milankovitch Cycle.
Several hundred years of astronomical observations have left no doubt that the Earth's orbit is subject to cyclic variations. While the annual energy receipt of solar radiation over the Earth as a whole is not change, the distribution of this energy, by latitude and by season, is affected by three parameters: an obliquity cycle of 41kyr, an ...
openaire +2 more sources

