Results 21 to 30 of about 464 (126)

Development and controlling factors of shale lithofacies cycles in a continental rift basin: A case study of Es4u in the Boxing Subsag of Dongying Sag, Bohai Bay Basin, China

Frontiers in Earth Science, 2023
The shale of the upper Es4 formation (Es4u), deposited during the Eocene in the Boxing Subsag of the Dongying Sag, is a typical set of lime-rich lacustrine shale in a continental rift basin.
Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Liqiang Zhang, Cunfei Ma   +6 more
doaj   +1 more source

Hierarchical Milankovitch and sub-Milankovitch cycles in the environmental magnetism of the lower Shahezi Formation, Lower Cretaceous, Songliao Basin, northeastern China

Frontiers in Earth Science, 2023
SK-2 borehole in Songliao Basin provides unprecedented geological materials for investigating the Early Cretaceous continental paleoenvironment and paleoclimate in northeastern China.
Shujing Zhang, Shujing Zhang, Huaichun Wu, Huaichun Wu, Shihong Zhang, Tianshui Yang, Haiyan Li, Qiang Fang, Qiang Fang, Meinan Shi, Meinan Shi   +10 more
doaj   +1 more source

Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea

Frontiers in Earth Science, 2022
Site U1501 of International Ocean Discovery Program (IODP) Expedition 368 locates on a broad regional basement high in the northern margin of the South China Sea (SCS).
Meinan Shi, Meinan Shi, Meinan Shi, Huaichun Wu, Huaichun Wu, Huaichun Wu, Eric C. Ferré, Sara Satolli, Qiang Fang, Qiang Fang, Qiang Fang, Yunfeng Nie, Yunfeng Nie, Yunfeng Nie, Yuhe Qin, Yuhe Qin, Yuhe Qin, Shihong Zhang, Tianshui Yang, Haiyan Li   +19 more
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

SPECTRAL ANALYSIS OF TOARCIAN SEDIMENTS FROM THE VALDORBIA SECTION (UMBRIA-MARCHE APENNINES): THE ASTRONOMICAL INPUT IN THE FORAMINIFERAL RECORD

Rivista Italiana di Paleontologia e Stratigrafia, 2016
Toarcian sections studied mainly in Europe have revealed the incidence of Milankovitch forcing with a well-developed, highly stable, 405 ky component of eccentricity, a short-term eccentricity of ~100 kyr, the cycle of obliquity ~36 kyr, and the ...
FRANCISCO J. RODRÍGUEZ-TOVAR, EULOGIO PARDO-IGÚZQUIZA, MATIAS REOLID, ANNACHIARA BARTOLINI   +3 more
doaj   +1 more source

Milankovitch-driven cycles in the Precambrian of China: The Wumishan Formation

Journal of Palaeogeography, 2013
Carbonate strata of the Mesoproterozoic Wumishan Formation in the Jixian area near Tianjin are ~3300 m thick and were deposited over some 100 million years (from ~1310±20 Ma to ~1207±10 Ma).
Mei Mingxiang, Maurice E. Tucker
doaj   +1 more source

The Astronomical Pulse of Global Extinction Events

The Scientific World Journal, 2006
The linkage between astronomical cycles and the periodicity of mass extinctions is reviewed and discussed. In particular, the apparent 26 million year cycle of global extinctions may be related to the motion of the solar system around the galaxy ...
David F.V. Lewis, Jean-Lou C.M. Dorne
doaj   +1 more source

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

Regional Variations in Sea Ice and Primary Productivity in the Bering Sea During Marine Isotope Stage 11

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Marine Isotope Stage (MIS) 11 (424–374 ka) has long been an analog for Holocene climate because it is the most recent interglacial period with similar orbital conditions. However, there is global and regional variability in the climate response to MIS 11 warmth.
N. S. Thompson, B. E. Caissie
wiley   +1 more source

Seeing Through the Noise: Implications for Signal Preservation in Sediment Flux Time Series From Erosional Systems

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.
Abstract Allogenic forcing of sediment production generates sedimentary signals that we use to understand the past. These signals may be buffered or shredded by autogenic processes as they travel through sediment routing systems from source to sink. Studies on signal propagation tend to focus on either signal buffering by deterministic fluvial networks
L. O. Roberge, N. M. Gasparini, K. M. Straub, B. Campforts, F. J. Pazzaglia   +4 more
wiley   +1 more source