Results 71 to 80 of about 407 (173)

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

open access: yesPaleoceanography 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   +8 more
wiley   +1 more source

Astronomical cycle driving of coal-bearing rock system rotations in the Permian Shihezi Formation at Renlou Coal Mine

open access: yesSolid Earth Sciences
Marine terrestrial transitional sedimentary rocks of Renlou Coal Mine are developed in coal bearing rock formations, which exhibits obvious cyclicity. These sedimentary cycles have a good correspondence with astronomical cycle signals.
Guodong Shi, Duoxi Yao, Xuekuan Shi
doaj   +1 more source

Identification of Milankovitch Cycles and Their Sedimentary Responses in Fine-Grained Depositional Strata on the Southwestern Margin of the Songliao Basin

open access: yesApplied Sciences
A series of fault depressions developed in the Kailu area on the southwestern margin of the Songliao Basin, where thick lacustrine fine-grained sedimentary rocks were widely deposited during the initial faulting stage in the Early Cretaceous.
Xuntao Yu   +6 more
doaj   +1 more source

Astronomical cycle identification and high-frequency sequence stratigraphy of the Middle Permian Lower Wuerhe Formation in the Mahu Sag, Junggar Basin

open access: yesFrontiers in Earth Science
High-resolution stratigraphic analysis is essential for reconstructing sedimentary processes and constraining reservoir architecture, yet conventional methods commonly lack quantitative time control at fourth- and fifth-order (104–105 yr) scales ...
Wenhu Yu   +4 more
doaj   +1 more source

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

open access: yesJournal 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

The ∼170 kyr astronomical cycle in the Early Permian Lucaogou Formation of the Junggar Basin

open access: yesFrontiers in Earth Science
According to Milankovitch’s theory, periodic climate change in Earth’s history is controlled by the periodic changes in the Earth’s orbit and axis of rotation. Milankovitch cycle include eccentricity, obliquity, and precession cycles. In addition to them,
Yuyin Li   +10 more
doaj   +1 more source

Methane and Milankovitch cycles [PDF]

open access: yesNature, 1992
J. M. ADAMS, H. FAURE, N. PETIT-MAIRE
openaire   +1 more source

Milankovitch cycles in an equatorial delta from the Miocene of Borneo

open access: yesEarth and Planetary Science Letters, 2017
The factors controlling sedimentary cyclicity in deltaic systems are a subject of intense debate, and more research, in different deltaic environments and time periods, is needed to better understand the possible mechanisms. Offshore and Pleistocene case studies are more common than proximal and more ancient, greenhouse-climate examples.
Nathan Marshall   +3 more
openaire   +5 more sources

Geographic variability in dust and temperature in climate scaling regimes over the Last Glacial Cycle [PDF]

open access: yesClimate of the Past
Temperature and mineral dust records serve as valuable palaeoclimatic indicators for studying atmospheric variability across different temporal scales. In this study, we employed Haar fluctuations to analyse global spatiotemporal atmospheric variability ...
N. Acuña Reyes   +3 more
doaj   +1 more source

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