Results 81 to 90 of about 3,442,186 (236)

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

Sea level changes versus hydrothermal diagenesis: Origin of Triassic carbonate platform cycles in the Dolomites, Italy: Discussion

In his recent paper, Blendinger (2004) presents a new and unconventional hypothesis for the formation of the Triassic Latemàr carbonate cycles. He assigned the cycles to intermittent hydrothermal influence alternating with normal marine deposition ...
Peterhansel, A., Egenhoff, S. O.
core   +1 more source

Orbital pacing of carbon fluxes by a ∼9-My eccentricity cycle during the Mesozoic

Proceedings of the National Academy of Sciences of the United States of America, 2015
Significance The Milankovitch cycles are orbitally paced variations in insolation that drove periodic climate changes on Earth at the scale of tens to hundreds of thousands years.
Mathieu Martinez, G. Dera
semanticscholar   +1 more source

Glacial Cycles and Milankovitch Forcing

, 2015
Using a recent conceptual model of the glacial-interglacial cycles we present more evidence of Milankovitch cycles being the trigger for retreat and forming of ice sheets in the cycles. This model is based on a finite approximation of an infinite dimensional model which has three components: Budyko's energy balance model describing the annual mean ...
openaire   +2 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

Orbital cycle records in shallow unconsolidated sediments: implications for global carbon cycle and hydrate system evolution in deep-sea area sediments of the Qiongdongnan Basin

Frontiers in Marine Science
IntroductionMilankovitch theory has extensive application in sequence stratigraphy and the establishment of time scales. However, it is rarely applied to shallow strata rich in hydrates.
Yang Dong, Yang Dong, Ren Wang, Ren Wang, Jinqiang Liang, Yulin He, Jinfeng Ren, Wanzhong Shi, Wanzhong Shi, Xiaosong Wei, Xiaosong Wei, Hao Du, Hao Du, Xiangyang Xie, Arthur B. Busbey   +14 more
doaj   +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

Stochastic Resonance Elucidates the Emergence and Periodicity Transition of Glacial Cycles

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Glacial cycles emerged with a 41‐kyr period after the Pliocene and later intensified with a 100‐kyr period in the mid‐Pleistocene, which were attributed to Earth's orbital variations. However, no significant changes in the orbital forcing were found at the two transitions, and the forcing was too small to drive these cycles. Here, a stochastic
Tian Xu, Gabriel Katul, Shineng Hu
wiley   +1 more source

Cyclostratigraphy and paleoclimate analysis of the Lingshui Formation in Changchang Sag, Qiongdongnan Basin, China

Energy Geoscience
The Qiongdongnan Basin, located in the sea between Hainan Island and the Xisha Islands, is a faulted Cenozoic basin on the northern continental margin of the South China Sea.
Haizhang Yang, Wu Tang, Enze Xu, Shangfeng Zhang, Yaning Wang, Min Xu   +5 more
doaj   +1 more source

The Impact of Pleistocene Glacial Cycles on the Evolutionary Diversification of the Arctic‐Alpine Silene acaulis Species Complex

Molecular Ecology, Volume 35, Issue 2, January 2026.
ABSTRACT Arctic‐alpine species are highly sensitive to long‐term temperature changes and associated glacial cycles due to their occurrence in cold environments to which they are adapted and spatially restricted. Unravelling their evolutionary responses to past climatic fluctuations can provide new insights into their diversification.
Oliver Reutimann, Gwyneth Halstead‐Nussloch, Andreas Tribsch, Pablo Tejero Ibarra, Niklaus Zemp, Alex Widmer, Martin C. Fischer   +6 more
wiley   +1 more source