Results 91 to 100 of about 5,987 (214)
Equatorial insolation: from precession harmonics to eccentricity frequencies [PDF]
, 2006 Since the paper by Hays et al. (1976), spectral analyses of climate proxy records provide substantial evidence that a fraction of the climatic variance is driven by insolation changes in the frequency ranges of obliquity and precession variations ...
A. Berger, J. L. Mélice, M. F. Loutre
core +4 more sources
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
Damping of glacial-interglacial cycles from anthropogenic forcing
, 2014 Climate variability over the past million years shows a strong glacial-interglacial cycle of ~100,000 years as a combined result of Milankovitch orbital forcing and climatic resonance.
Haqq-Misra, Jacob
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Evolution of Pliocene climate cyclicity at Hole 806B (5-2 Ma); oxygen isotope record [PDF]
, 1993 A detailed Pliocene oxygen isotope record from the Ontong Java Plateau, based on measurements of the surface-dwelling planktonic foraminifer Globigerinoides sacculifer, was produced for the period from 5 to 2 Ma. The record documents major long and short-
Backman, Jan +4 more
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The Depositional Record, Volume 11, Issue 5, Page 1200-1258, November 2025.Shallow‐marine mudstone of the Cretaceous Kaskapau Formation in the British Columbia foredeep preserves a 185 m thick record of OAE2. The organic carbon‐isotope and osmium‐isotope excursions can be correlated in detail with other Cenomanian–Turonian boundary sections around the world.
A. Guy Plint +12 more
wiley +1 more source
Energy GeoscienceThe 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 +5 more
doaj +1 more source
The glacial cycles and cosmic rays
, 2004 The cause of the glacial cycles remains a mystery. The origin is widely accepted to be astronomical since paleoclimatic archives contain strong spectral components that match the frequencies of Earth's orbital modulation.
Kirkby, J., Mangini, A., Muller, R. A.
core
Orbitally‐Driven Nutrient Pulses Linked to Early Cambrian Periodic Oxygenation and Animal Radiation
Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract During the Cambrian Explosion, episodic radiations of major animal phyla occurred in concert with repeated coupled carbon‐sulfur isotope excursions. These isotope patterns are thought to reflect oscillations in atmospheric and shallow‐marine O2, which promoted animal diversification events. However, the driver for oxygenation pulses is unclear.
Yinggang Zhang +6 more
wiley +1 more source
The orbital record in stratigraphy [PDF]
Orbital signals are being discovered in pre-Pleistocene sediments. Due to their hierarchical nature these cycle patterns are complex, and the imprecision of geochronology generally makes the assignment of stratigraphic cycles to specific orbital cycles ...
Fischer, Alfred G.
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Solid Earth SciencesMarine 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