Results 71 to 80 of about 5,987 (214)

Eccentricity Controls the Magnitude and Periodicity of Pleistocene Glacial Cycles

Paleoceanography and Paleoclimatology, Volume 41, Issue 3, March 2026.
Abstract During the Mid‐Pleistocene Transition (∼1,250–750 ka) glacial cycle amplitude and duration increased, from smaller, ∼40 ka‐period middle Pleistocene ice sheets to larger, ∼100 ka‐period late Pleistocene ice sheets. This transition in glacial period and size has been attributed to some combination of long‐term, monotonic, carbon and climate ...
Samuel T. Kodama, Terrence Blackburn
wiley   +1 more source

The Impact of Milankovitch Cycles on Coal Accumulation and Its Implications for Carbon Cycling and Carbon Sequestration: A Case Study of the Pinghu Formation, Area A, Xihu Depression

Applied Sciences
The Eocene Pinghu Formation in the Xihu Depression, East China Sea Shelf Basin, is a key coal-bearing unit for offshore China’s petroleum exploration.
Yaning Wang, Yu Jiang, Shan Jiang, Yan Zhao   +3 more
doaj   +1 more source

Nonlinearity and Multifractality of Climate Change in the Past 420,000 Years

, 2002
Evidence of past climate variations are stored in ice and indicate glacial-interglacial cycles characterized by three dominant time periods of 20kyr, 40kyr, and 100kyr.
Ashkenazy, Ashkenazy, Benzi, Bunde, Don R. Baker, Ghil, Ghil, Gildor, Hasselmann, Hezi Gildor, Imbrie, Kantelhardt, King, Kominz, Lovejoy, Muzy, Nicolis, Parisi, Pelletier, Peng, Petit, Saltzman, Schmitt, Schreiber, Shlomo Havlin, Tsonis, Tziperman, Wunsch, Yiou, Yosef Ashkenazy   +29 more
core   +1 more source

Milankovitch cycles of terrestrial planets in binary star systems [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
The habitability of planets in binary star systems depends not only on the radiation environment created by the two stars, but also on the perturbations to planetary orbits and rotation produced by the gravitational field of the binary and neighbouring planets.
openaire   +4 more sources

Stepwise Glacial Inception and Prolonged Southern Ocean CO2 Outgassing Linked With Marine Isotope Stage 11

Paleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract The climatic optimum of Marine Isotope Stage (MIS) 11, MIS 11c, was a remarkably long warmer‐than‐present climate interval with prolonged elevated atmospheric CO2 levels. While the Pacific Southern Ocean has a strong leverage on atmospheric CO2 through oceanic CO2 release, past changes in carbon cycle dynamics in this region and their ...
L. Jebasinski, G. Winckler, F. Lamy, L. von Stebut, D. A. Frick, C. Basak, A. K. I. U. Kapuge, J. R. Farmer, J. Gottschalk   +8 more
wiley   +1 more source

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 ...
Panpan Chen, Nianqiao Fang, Cunlei Li, Jianmei Liu   +3 more
openaire   +1 more source

The regional evolution of a dryland fluvio‐aeolian and lacustrine succession in response to allocyclic forcing: insights from the Early Permian Cutler Group, Utah, USA

Sedimentology, Volume 73, Issue 2, Page 297-354, February 2026.
ABSTRACT Preserved allocyclic signatures in the rock record often reflect basin‐scale climatic variability and serve as key proxies for correlating ancient dryland successions. The notion of climate cyclicity, however, remains largely untested on regionally constrained, outcrop‐calibrated studies.
Oliver Button, Jack G. Connor, Ross P. Pettigrew, Ben A. Kilhams, John A. Howell   +4 more
wiley   +1 more source

Astronomically Forced Cyclicity and Cyclostratigraphic Framework of the Middle Jurassic Bath–Bajocian Formation in the West Siberian Basin

Applied Sciences
We aim to elucidate the sedimentary cyclicity of the Middle Jurassic Bath–Bajocian Formation in the northern S Oilfield of the West Siberian Basin, address the lack of high-resolution Milankovitch cycle research in this region, and support hydrocarbon ...
Chengyu Song, Yefei Chen, Lun Zhao, Yunyang Liu, Yujie Gao   +4 more
doaj   +1 more source

Continental lacustrine fine-grained lithofacies, assemblage and geological significance of unconventional petroleum: A case study of the Paleogene of the 4th member of the Shahejie formation in the Jiyang depression

Energy Exploration & Exploitation, 2023
Taking the upper sub-member of Sha 4 in Well Fanye 1 and Well Niuye 1 in Dongying Sag, Jiyang Depression, Bohai Bay Basin as a typical example, this paper adopts the method of combining macro and micro laminar characterization and complementing each ...
Ying Li, Zeng-Xue Li, Dong-Dong Wang, Guang-Zeng Song, Da-Wei Lv, Lusheng-Yin, Hai-Yan Liu, Chun-Hua Xu, Fan-Fei Kong, Qiao-Yu Han   +9 more
doaj   +1 more source

Interglacials, Milankovitch Cycles, Solar Activity, and Carbon Dioxide [PDF]

Journal of Climatology, 2014
The existing understanding of interglacial periods is that they are initiated by Milankovitch cycles enhanced by rising atmospheric carbon dioxide concentrations. During interglacials, global temperature is also believed to be primarily controlled by carbon dioxide concentrations, modulated by internal processes such as the Pacific Decadal Oscillation
openaire   +1 more source