Results 1 to 10 of about 3,441,635 (192)
Milankovitch cycles in banded iron formations constrain the Earth–Moon system 2.46 billion years ago [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2022 Significance Milankovitch cycles recorded in 2.46-billion-year-old sediments indicate that Earth’s precession cycle had a significantly higher frequency than present, signaling shorter daylengths and Earth–Moon distance.
Margriet L Lantink +2 more
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Frontiers in Earth ScienceThe sedimentary cycle of Fengcheng Formation in Junggar Basin changes rapidly and is difficult to identify. The low classification accuracy of high-frequency fine-grained sedimentary cycles restricts the exploration of unconventional shale oil and gas ...
Ran Wang +3 more
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Uniformity of the upper Famennian Milankovitch cycle in China
Science Bulletin, 2000 Research on chemo-biostratigraphy reveals that the periodic fluctuation of Ce/La ratios in carbonate sequence may reflect Milankovitch 100 ka eccentricity cyclicity. The Ce/La curve of the upper Famennian of Huangmao (Guangxi) may be well correlated to that of Muhua (Guizhou) and of Mid-Tarim (Xinjiang).
Dayong Jiang, Jiang Dayong
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Energy Exploration & Exploitation, 2023 China has recently faced significant difficulties in the exploitation of its shale oil and gas resources. An essential geological obstacle preventing the breakthrough of Chinese shale oil exploration is the precise identification of productive oil and ...
Wei Wu +4 more
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China Geology, 2021 As cyclical orbital movements of Earth, Milankovitch cycles can be recorded in sedimentary strata. The time they reflect can be used to accurately divide and compare strata.
Shu-yu Wu +3 more
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Exponential feedback effects in a parametric resonance climate model [PDF]
Scientific Reports, 2023 The variations in the distribution of solar radiation due to the ~ 105 years Milankovitch cycle, which is connected to the Earth eccentricity variation, cannot explain the sharp drop in temperature of 6 °C ÷ 10 °C that marks the transition from the ...
Maria Teresa Caccamo, Salvatore Magazù
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Climate, 2021 Recent decades have registered the hottest temperature variation in instrumentally recorded data history. The registered temperature rise is particularly significant in the so-called hot spot or sentinel regions, characterized by higher temperature ...
Maria TERESA Caccamo +2 more
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Proterozoic Milankovitch cycles and the history of the solar system [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2018 SignificancePeriodic variations in Earth’s orbit and rotation axis occur over tens of thousands of years, producing rhythmic climate changes known as Milankovitch cycles. The geologic record of these climate cycles is a powerful tool for reconstructing geologic time, for understanding ancient climate change, and for evaluating the history of our solar ...
Stephen R Meyers +2 more
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When volcanoes record Milankovitch cycles
Frontiers in Earth ScienceCyclic fluctuations in the frequency and intensity of volcanic activity are recorded during periods of global climate change. Volcano-sedimentary successions (e.g., in near-coastal environments) may reveal the interplay of glacio-eustatic fluctuations ...
Gianluca Sottili, Danilo M. Palladino
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A method for the division of the conglomerate depositional cycle under Milankovitch cycles [PDF]
Journal of Geophysics and Engineering, 2017 The conglomerate layer at the upper section of the 4th member of the Shahejie formation of the Yongan district at the Donying depression is a well-developed sedimentation of several periods. It lacks stable muddy layers and sophisticated classification of the sedimentation periods and the proportion of sedimentary layering in each period has long been ...
Cunlei Li, Fang Nianqiao
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