Results 21 to 30 of about 2,716 (159)

Milankovitch cycles and the astronomical time scale of the Zhujiang Formation in the Baiyun Sag, Pearl River Mouth Basin, China

open access: yesOpen Geosciences, 2022
The Zhujiang Formation in the Baiyun Sag, Pearl River Mouth Basin, China, is formed primarily in a deep-water continental slope environment. Its chronostratigraphic framework is based on biostratigraphy and sequence stratigraphy, and its geological ...
He Ping   +3 more
doaj   +1 more source

Multiband Wavelet Age Modeling for a ∼293 m (∼600 kyr) Sediment Core From Chew Bahir Basin, Southern Ethiopian Rift

open access: yesFrontiers in Earth Science, 2021
The use of cyclostratigraphy to reconstruct the timing of deposition of lacustrine deposits requires sophisticated tuning techniques that can accommodate continuous long-term changes in sedimentation rates.
Walter Duesing   +7 more
doaj   +1 more source

CycloNet: European Cyclostratigraphy Network

open access: yes, 2022
<p>The study of astronomical climate forcing and the application of cyclostratigraphy experienced a spectacular growth over the last decades. In 2018, the first Cyclostratigraphy Intercomparison Project (CIP)<em> </em>workshop constituted the first attempt to compare different methodological approaches and ...
Claeys, Philippe   +3 more
openaire   +3 more sources

Cyclostratigraphy concepts, definitions, and applications [PDF]

open access: yesNewsletters on Stratigraphy, 2007
Cyclostratigraphy is the subdiscipline of stratigraphy that deals with the identification, characterization, correlation, and interpretation of cyclic variations in the stratigraphic record and, in particular, with their application in geochronology by improving the accuracy and resolution of time-stratigraphic frameworks.
André Hilgen Strasser, Philip H. Heckel
openaire   +3 more sources

Rock Magnetic Cyclostratigraphy of the Carboniferous Mauch Chunk Formation, Pottsville, PA, United States

open access: yesFrontiers in Earth Science, 2019
A rock magnetic cyclostratigraphy study was conducted on the Carboniferous Mauch Chunk Formation red beds at Pottsville, Pennsylvania to determine if Milankovitch climate forcing could be detected in these terrestrial, fluvial deposits with hematite as ...
Kenneth P. Kodama
doaj   +1 more source

“Tiny Wiggles” in the Late Miocene Red Clay Deposits in the North‐East of the Tibetan Plateau

open access: yesGeophysical Research Letters, 2021
Small amplitude or short period geomagnetic anomalies known as “tiny wiggles” (TWs) are often hard to identify because of magnetic signal smoothing in the marine record of geomagnetic reversals.
Rui Zhang   +11 more
doaj   +1 more source

Progress in palynology of the Gelasian–Calabrian Stages in Europe: Ten messages [PDF]

open access: yes, 2007
Europe has at present the most extensive network of palynological sites covering the Late Pliocene and the Early Pleistocene or roughly the Gelasian-Calabrian Stages. This paper covers ten points of recent progress in the palynology of this time period:
Leroy, SAG
core   +1 more source

Orbital frequencies in the carbonate sedimentary record: distorted by diagenesis? [PDF]

open access: yes, 2004
The most important archive of Earth’s climate change through geologic history is the sedimentary rock record. Rhythmic sedimentary alternations are usually interpreted as a consequence of periodic variations in the orbital parameters of the Earth.
Bornholdt, Stefan   +2 more
core   +1 more source

Late Maastrichtian carbon isotope stratigraphy and cyclostratigraphy of the Newfoundland Margin (Site U1403, IODP Expedition 342) [PDF]

open access: yes, 2018
Earth’s climate during the Maastrichtian (latest Cretaceous) was punctuated by brief warming and cooling episodes, accompanied by perturbations of the global carbon cycle.
Agnini, Claudia   +38 more
core   +3 more sources

Astronomical forcing in Lopingian coal-bearing cycles: a case study of Bijie area in northwestern Guizhou

open access: yes矿业科学学报, 2022
To systematically study the sedimentary cycles and their astronomical forcing in the Lopingian coal-bearing series in Bijie area, northwestern Guizhou, the GR logging data from four boreholes in this area were analyzed and tested by using time series ...
Gao Xiangyu   +4 more
doaj   +1 more source

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