Results 51 to 60 of about 5,987 (214)

Paleotemperature evolution and its driving mechanism during the formation of limestone-marl alternations in first member of Middle Permian Maokou Formation in Sichuan Basin

Shiyou shiyan dizhi, 2023
From the Late Carboniferous to the end of Middle Permian, the most intense glacial event in history of Phanerozoic occurred and it is also the last transition period from icehouse stage to greenhouse stage in geological history.
Jianping FAN, Jinmin SONG, Shugen LIU, Qingchun JIANG, Zhiwu LI, Di YANG, Xin JIN, Wang SU, Yuehao YE, Shipeng HUANG, Jiarui WANG, Hua JIANG, Ping LUO   +12 more
doaj   +1 more source

Periodic Orbits for a Discontinuous Vector Field Arising from a Conceptual Model of Glacial Cycles

, 2015
Conceptual climate models provide an approach to understanding climate processes through a mathematical analysis of an approximation to reality. Recently, these models have also provided interesting examples of nonsmooth dynamical systems.
Hahn, Jonathan, McGehee, Richard, Walsh, James, Widiasih, Esther   +3 more
core   +1 more source

Milankovitch cycles and the astronomical time scale of the Zhujiang Formation in the Baiyun Sag, Pearl River Mouth Basin, China

Open Geosciences, 2022
The Zhujiang Formation in the Baiyun Sag, Pearl River Mouth Basin, China, is formed primarily in a deep-water continental slope environment. Its chronostratigraphic framework is based on biostratigraphy and sequence stratigraphy, and its geological ...
He Ping, Zhang Shangfeng, Xu Enze, Zhu Chunxia   +3 more
doaj   +1 more source

Genetic mechanism of multi-scale sedimentary cycles and their impacts on shale-oil distribution in Permian Lucaogou Formation, Jimusar Sag, Junggar Basin

Unconventional Resources, 2023
Complex lithofacies of Lucaogou Formation in Jimusar Sag promote strong heterogeneity of oil distribution in fine grained sedimentary rocks. It is of great significance to define the formation mechanism of fine-grained sedimentary rocks for favorable ...
Kelai Xi, Xinhui Huo, Miruo Lin, Yuanyuan Zhang, Ke Li   +4 more
doaj   +1 more source

Optimizing significance testing of astronomical forcing in cyclostratigraphy [PDF]

, 2017
Peer reviewedPublisher ...
Carver, Carver, David B. Kemp, Gradstein, Guyodo, Hasselmann, Hays, Herbert, Hilgen, Hinnov, Huybers, Huybers, Huybers, Kemp, Laskar, Laurin, Mann, Meyers, Meyers, Meyers, Meyers, Meyers, Mix, Moore, Mudelsee, Mudelsee, Mudge, Pelletier, Pälike, Rhines, Sadler, Sadler, Schiffelbein, Suan, Taylor Perron, Thompson, Tipper, Vaughan, Waltham, Wasserstein, Weedon, Wu, Wunsch, Wunsch, Zachos, Zeeden   +45 more
core   +1 more source

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source

The Mid-Pleistocene Transition induced by delayed feedback and bistability [PDF]

, 2018
The Mid-Pleistocene Transition, the shift from 41 kyr to 100 kyr glacial-interglacial cycles that occurred roughly 1 Myr ago, is often considered as a change in internal climate dynamics.
Lenton, Timothy M., Quinn, Courtney, Sieber, Jan, von der Heydt, Anna S.   +3 more
core   +3 more sources

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

A Solar-luminosity Model and Climate [PDF]

, 1990
Although the mechanisms of climatic change are not completely understood, the potential causes include changes in the Sun's luminosity. Solar activity in the form of sunspots, flares, proton events, and radiation fluctuations has displayed periodic ...
Perry, Charles A.
core   +1 more source

Cenozoic Time Constraints on the Evolution of a Gleysol‐Ferralsol‐Podzol Toposequence, Northwest Amazon Basin, Brazil

European Journal of Soil Science, Volume 77, Issue 3, May–June 2026.
ABSTRACT Deciphering the time milestones of clay formation is crucial for modeling the evolution of major geological systems near the Earth's surface. In the present study, kaolinite samples collected along four vertical profiles within a Gleysol‐Ferralsol‐Podzol soil toposequence near São Gabriel da Cachoeira, NW Amazon Basin (Brazil) are dated using ...
Célia Regina Montes, Thierry Allard, Madeleine Sélo, Yves Lucas, Chloé Fourdrin, Öykü Ataytür, Débora Ayumi Ishida, Etienne Balan, Adolpho José Melfi   +8 more
wiley   +1 more source