Results 11 to 20 of about 506 (176)

Comparison of variations in sediment accumulation rates of the upper part of Zakeen Formation through cyclostratigraphic study in 2SK-1 and 2SKD-1 wells in Salman gas field [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2020
The Zakeen Formation is one of the possible gas reservoirs in the Zagros sedimentary basin. In this paper, the cyclostratigraphic study of the upper part of the Zakeen Formation was performed by using evolutionary spectral analysis methods.
Omid Falahatkhah   +2 more
doaj   +1 more source

Characteristics of Milankovitch cycles recorded in Eocene strata in the eastern depression of North Yellow Sea Basin, North China

open access: yesChina Geology, 2021
As cyclical orbital movements of Earth, Milankovitch cycles can be recorded in sedimentary strata. The time they reflect can be used to accurately divide and compare strata.
Shu-yu Wu   +3 more
doaj   +1 more source

Disentangling the Evidence of Milankovitch Forcing From Tree-Ring and Sedimentary Records

open access: yesFrontiers in Earth Science, 2022
Tree-ring records constitute excellent high-resolution data and provide valuable information for climate science and paleoclimatology. Tree-ring reconstructions of past temperature variations agree to show evidence for annual-to-centennial anomalies in ...
Samuli Helama   +13 more
doaj   +1 more source

Low-latitude climate variability in the Heinrich frequency band of the Late Cretaceous greenhouse world [PDF]

open access: yesClimate of the Past, 2014
Deep marine successions of early Campanian age from DSDP (Deep Sea Drilling Project) site 516F drilled at low paleolatitudes in the South Atlantic reveal distinct sub-Milankovitch variability in addition to precession, obliquity and eccentricity-related ...
N. J. de Winter, C. Zeeden, F. J. Hilgen
doaj   +1 more source

Earth Orbit v2.1: a 3-D visualization and analysis model of Earth's orbit, Milankovitch cycles and insolation [PDF]

open access: yesGeoscientific Model Development, 2014
Milankovitch theory postulates that periodic variability of Earth's orbital elements is a major climate forcing mechanism, causing, for example, the contemporary glacial–interglacial cycles.
T. S. Kostadinov, R. Gilb
doaj   +1 more source

Enhanced climate variability in the tropics: a 200 000 yr annual record of monsoon variability from Pangea's equator [PDF]

open access: yesClimate of the Past, 2011
A continuous series of 209 000 evaporite varves from the equator of arid western Pangea (age = −255 ma), as a proxy for surface temperature, has a complete suite of Milankovitch cycles and harmonics as expected for a rectified reaction to precession ...
R. Y. Anderson
doaj   +1 more source

Linking the Variation of Sediment Accumulation Rate to Short Term Sea-Level Change Using Cyclostratigraphy: Case Study of the Lower Berriasian Hemipelagic Sediments in Central Tunisia (Southern Tethys)

open access: yesFrontiers in Earth Science, 2021
High-resolution magnetic susceptibility and % CaCO3 records (5 to 10 cm sampling interval) are used to track astronomical cycles from a Lower Berriasian record from central Tunisia.
Hamdi Omar   +4 more
doaj   +1 more source

Persistent Magma‐Rich Waves Beneath Mid‐Ocean Ridges Explain Long Periodicity on Ocean Floor Fabric

open access: yesGeophysical Research Letters, 2022
The ocean floor makes up the majority of the Earth's surface and yet, its geomorphology is not fully understood. Recent debate has focused on whether sea level changes—driven by Milankovitch glacial cycles—generate the abyssal hill fabric of the ocean ...
S. J. Sim
doaj   +1 more source

Comparison of Recently Proposed Causes of Climate Change

open access: yesAtmosphere, 2023
This paper compares the ideas contained in the main papers published on climate change since World War II to arrive at a suggested consensus of our present knowledge regarding climatic changes and their causes.
Stuart A. Harris
doaj   +1 more source

GENERALIZED MILANKOVITCH CYCLES AND LONG-TERM CLIMATIC HABITABILITY [PDF]

open access: yesThe Astrophysical Journal, 2010
Although the Earth's orbit is never far from circular, terrestrial planets around other stars might experience substantial changes in eccentricity that could lead to climate changes, including possible "phase transitions" such as the snowball transition (or its opposite).
Spiegel, David S.   +4 more
openaire   +3 more sources

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