Results 101 to 110 of about 5,987 (214)

Uniformity of the upper Famennian Milankovitch cycle in China

open access: yesChinese Science Bulletin, 2000
Research on chemo-biostratigraphy reveals that the periodic fluctuation of Ce/La ratios in carbonate sequence may reflect Milankovitch 100 ka eccentricity cyclicity. The Ce/La curve of the upper Famennian of Huangmao (Guangxi) may be well correlated to that of Muhua (Guizhou) and of Mid-Tarim (Xinjiang).
Weicheng Hao   +2 more
openaire   +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

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

State-dependence of climate sensitivity: attractor constraints and palaeoclimate regimes

open access: yes, 2016
Equilibrium climate sensitivity (ECS) is a key predictor of climate change. However, it is not very well constrained, either by climate models or by observational data.
Ashwin, Peter, von der Heydt, Anna S.
core   +1 more source

Examining Long-Term Global Climate Change on the Web [PDF]

open access: yes
This article describes an activity in which students use web-based resources to investigate global climate change. The investigation takes the form of a computer activity in which they collect data from the internet on temperature, concentrations of ...
Jacqueline Huntoon, Robert Ridky
core  

Oscillations in the Habitable Zone around Alpha Centauri B

open access: yes, 2012
The Alpha Centauri AB system is an attractive one for radial velocity observations to detect potential exoplanets. The high metallicity of both Alpha Centauri A and B suggest that they could have possessed circumstellar discs capable of forming planets ...
Breus   +33 more
core   +1 more source

The White Stone Band of the Kimmeridge Clay Formation, an integrated high resolution approach to understanding environmental change

open access: yes, 2004
The Kimmeridge Clay is a Jurassic mudrock succession that shows Milankovitch Band climatic cyclicity. A key issue is to determine how the subtle changes that define this cyclicity result from climatic change.
Kemp, A.E.S.   +2 more
core  

How to cope with climate's complexity

open access: yes, 2008
Climate exhibits a vast range of dissipative structures. Some have characteristic times of a few days; others evolve on thousands of years. All these structures are interdependent; in other words, they communicate.
Crucifix, Michel
core   +1 more source

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