Results 41 to 50 of about 5,987 (214)

Cosmic Rays and Climate [PDF]

, 2007
Among the most puzzling questions in climate change is that of solar-climate variability, which has attracted the attention of scientists for more than two centuries. Until recently, even the existence of solar-climate variability has been controversial -
Kirkby, Jasper
core   +2 more sources

Pacing of Paleozoic macroevolutionary rates by Milankovitch grand cycles [PDF]

Proceedings of the National Academy of Sciences, 2018
SignificanceThere has been long-standing debate about the relative roles of intrinsic biotic interactions vs. extrinsic environmental factors as drivers of biodiversity change. Here, we show that, relatively early in the history of complex life, Milankovitch “grand cycles” associated with astronomical rhythms explain between 9 and 16% of variation in ...
James S. Crampton, Stephen R. Meyers, Roger A. Cooper, Peter M. Sadler, Michael Foote, David Harte   +5 more
openaire   +4 more sources

“Empirical Prewhitening” Spectral Analysis Detects Periodic but Inconsistent Signals in Abyssal Hill Morphology at the Southern East Pacific Rise

Geochemistry, Geophysics, Geosystems, 2020
The existence, or not, of periodicities in abyssal hill morphology has been vigorously debated in recent publications, and some have hypothesized that such periodicities are evidence of the impact of Milankovitch cycle‐caused sea level fluctuations on ...
John A. Goff
doaj   +1 more source

Toward generalized Milankovitch theory (GMT) [PDF]

Climate of the Past
In recent decades, numerous paleoclimate records and results of model simulations have provided strong support for the astronomical theory of Quaternary glacial cycles formulated in its modern form by Milutin Milankovitch.
A. Ganopolski, A. Ganopolski
doaj   +1 more source

Orbital frequencies in the carbonate sedimentary record: distorted by diagenesis? [PDF]

, 2004
The most important archive of Earth’s climate change through geologic history is the sedimentary rock record. Rhythmic sedimentary alternations are usually interpreted as a consequence of periodic variations in the orbital parameters of the Earth.
Bornholdt, Stefan, Böhm, Florian, Westphal, Karl-Heinz   +2 more
core   +1 more source

The complex dynamics of the seasonal component of USA's surface temperature [PDF]

Atmospheric Chemistry and Physics, 2010
The dynamics of the climate system has been investigated by analyzing the complex seasonal oscillation of monthly averaged temperatures recorded at 1167 stations covering the whole USA.
A. Vecchio, V. Capparelli, V. Carbone
doaj   +1 more source

Detailed stratigraphic correlation of the Neogene sedimentary sequences on the Ontong Java Plateau by well logging; ODP Sites 803, 805, 806, 807, and DSDP Site 586 [PDF]

, 1993
We used well logs, in some cases combined with shipboard physical properties measurements to make more complete profiles and to correlate between sites on the Ontong Java Plateau.
Lyle, Mitchell, Mayer, Larry A., Wilkens, Roy H.   +2 more
core   +2 more sources

Astrochronology and Petroleum Implications of the Chang 8 Member in the Longdong Area, Ordos Basin, China

Geosciences
The Chang 8 Member in the Longdong area of the Ordos Basin hosts significant petroleum resources, demonstrating substantial potential for tight oil exploration and development.
Wei Wang, Jihong Li, Xiuqin Deng, Shutong Li, Junlin Chen, Junli Qiu, Xiaoyan Li, Youwei Duan   +7 more
doaj   +1 more source

Modeling the dynamics of glacial cycles [PDF]

, 2017
This article is concerned with the dynamics of glacial cycles observed in the geological record of the Pleistocene Epoch. It focuses on a conceptual model proposed by Maasch and Saltzman [J. Geophys. Res.,95, D2 (1990), pp.
A Khibnik, B Saltzman, B Saltzman, D Paillard, D Paillard, D Paillard, DZ Sun, EJ Doedel, EJ Doedel, G Dangelmayr, H Engler, H Poincaré, H Treut Le, HA Dijkstra, HW Broer, J Carr, J Guckenheimer, J Imbrie, J Laskar, J Marshall, JD Hayes, JR Petit, KA Maasch, KH Cook, M Crucifix, M Ghil, M Milankovič, M Raymo, NJ Shackleton, P Ashwin, P Clark, P Huybers, P Huybers, P Huybers, R Cushman, RI Bogdanov, S Rutherford, V Arnold, V Melnikov, Y Ashkenazy, YA Kuznetsov, YA Kuznetsov   +41 more
core   +2 more sources

Prediction of fine-grained sedimentary lithofacies distribution based on astronomical cycle isochronous lattice: a case study of Triassic Chang 7 member of Fuxian area, Ordos Basin

Shiyou shiyan dizhi
Predicting the thickness distribution of different types of continental lithofacies is a fundamental task for selecting and evaluating continental shale oil-rich zones.
Faqi HE, Jianhui ZHU, Rong QI, Yingli WU, Jiujun MIAO, Longyan JIANG, Dongyan WANG, Xian CHEN   +7 more
doaj   +1 more source