Results 31 to 40 of about 3,442,186 (236)

Time-calibrated Milankovitch cycles for the late Permian [PDF]

Nature Communications, 2013
AbstractAn important innovation in the geosciences is the astronomical time scale. The astronomical time scale is based on the Milankovitch-forced stratigraphy that has been calibrated to astronomical models of paleoclimate forcing; it is defined for much of Cenozoic–Mesozoic.
Wu, Huaichun, Zhang, Shihong, Hinnov, Linda A., Jiang, Ganqing, Feng, Qinglai, Li, Haiyan, Yang, Tianshui   +6 more
openaire   +2 more sources

A Study on Astronomical Cycle Identification and Environmental Response Characteristics of Lacustrine Deep-Water Fine-Grained Sedimentary Rocks: A Case Study of the Lower Submember of Member 3 of Shahejie Formation in Well Fanye-1 of Dongying Sag, Bohai Bay Basin, China

Geofluids, 2021
With the further exploration and development of shale oil and gas, cycle division of fine-grained sedimentary rock strata has been increasingly highly focused on by scholars. Owing to the application of the theory of classical sequence stratigraphy based
Ledan Yu, Jun Peng, Tianyu Xu, Yubin Wang, Haodong Han   +4 more
doaj   +1 more source

Sequence stratigraphic characteristics and hydrocarbon prospect of Mesozoic Formation in Suibin Depression, Sanjiang Basin

Petroleum Exploration and Development, 2008
According to the detailed analysis of drilling data, together with the interpretation of seismic section, the Mesozoic of Suibin Depression is divided into four second-order sequences and eight third-order sequences.
Shao-bin GUO, Hong-liang WANG
doaj   +1 more source

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

No Evidence for Milankovitch Cycle Influence on Abyssal Hills at Intermediate, Fast, and Superfast Spreading Rates

Geophysical Research Letters, 2018
A recent hypothesis contends that abyssal hill topography is linked to sea level periodicities expressed by Milankovitch cycles, predicting that abyssal hill elevation is correlated to crustal age.
John A. Goff, S. Zahirovic, R. Müller
semanticscholar   +1 more source

The net primary productivity of Mid-Jurassic peatland and its control factors: Evidenced by the Ordos Basin

International Journal of Mining Science and Technology, 2018
Using the large-scale thick 4# coal seam from the Mid-Jurassic in the southern Ordos Basin as an example, this paper studied the net primary productivity (NPP) level of the Mid-Jurassic peatland, and discussed its control factors.
Dongdong Wang, Zhiming Yan, Haiyan Liu, Dawei Lv, Yijun Hou   +4 more
doaj   +1 more source

Application of Milankovitch cycles in the restoration of high-resolution deposition velocity of Neogene strata in Kutei Basin, Indonesia

Energy Geoscience, 2023
Restoring the deposition velocity during evolution in basin analysis is an important aspect. The restoration of high-resolution deposition velocity—the deposition velocity over a short geological period—can improve the precision of basin analysis and ...
Baonian Wu, Zhijun Jin
doaj   +1 more source

Recognition of non-Milankovitch sea-level highstands at 185 and 343 thousand years ago from U-Th dating of Bahamas sediment [PDF]

, 2006
Thirty-one new bulk-sediment U-Th dates are presented, together with an improved δO stratigraphy, for ODP Site 1008A on the slopes of the Bahamas Banks. These ages supplement and extend those from previous studies and provide constraints on the timing of
Henderson, Gideon M., Cox, K, Thomas, A.L., Robinson, L.F., Henderson, Gideon, Thomas, Alex L., Robinson, LF, Henderson, GM, Henderson, G.M., Cox, Katharine, Cox, K., Thomas, AL, Robinson, Laura F.   +12 more
core   +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 cycles and carboniferous climate

Geophysical Research Letters, 1993
Cyclical Permo‐Carboniferous sea level fluctuations have long been linked to glacial‐interglacial fluctuations on Gondwanaland. Similar to the Pleistocene, such fluctuations may in turn have been driven by variations in orbital insolation forcing. Herein we report results from climate model simulations that examine the effect of Milankovitch insolation
Thomas J. Crowley, Kuor‐Jier Joseph Yip, Steven K. Baum   +2 more
openaire   +1 more source