Results 11 to 20 of about 1,424 (201)

Combined Magnetostratigraphy From Three Localities of the Rainstorm Member of the Johnnie Formation in California and Nevada, United States Calibrated by Cyclostratigraphy: A 13 R/Ma Reversal Frequency for the Ediacaran

open access: yesFrontiers in Earth Science, 2021
A combined magnetostratigraphy for the Rainstorm Member of the Ediacaran Johnnie Formation was constructed using the sediment accumulation rates determined by rock magnetic cyclostratigraphy for three localities of the Rainstorm Member to provide a high ...
Kenneth P Kodama
exaly   +3 more sources

Ordovician cyclostratigraphy and astrochronology [PDF]

open access: yesGeological Society, London, Special Publications, 2023
Abstract Cyclostratigraphy is an important tool for understanding astronomical climate forcing and for reconstructing geological time in sedimentary sequences, provided that an imprint of insolation variations caused by Earth's orbital eccentricity, obliquity and precession is preserved (Milankovitch forcing).
Matthias Sinnesael, Sinnesael, Matthias
openaire   +4 more sources

Cyclostratigraphy and high-frequency sedimentary cycle framework for the Late Paleozoic Fengcheng Formation, Junggar Basin

open access: yesFrontiers in Earth Science, 2023
The Late Paleozoic Fengcheng Formation within the Mahu Sag of the Junggar Basin (China) harbors the world’s oldest alkaline lake hydrocarbon source rocks.
Qiusheng Chang   +2 more
exaly   +3 more sources

CYCLOSTRATIGRAPHY: A METHODOLOGICAL APPROACH

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2002
Aim of this study is a synthetic description of the most used methodologies of cylostratigraphic analysis for the astronomical calibration of sedimentary sequences.
MARIO SPROVIERI   +3 more
doaj   +4 more sources

Research Status and Development Direction of Well Log Cyclostratigraphy

open access: yesCejing jishu
Well log cyclostratigraphy has become the foundation for studying many key scientific issues in the field of geosciences by identifying, extracting, and interpreting astronomical cycles recorded by geophysical logs. This paper analyzes the driving forces
PENG Cheng, ZOU Changchun, CAO Jinyu
doaj   +2 more sources

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, Anne-Christine da Silva
exaly   +3 more sources

Temperature‐Driven Silicate Weathering Feedbacks Terminated the Middle Eocene Climatic Optimum

open access: yesGeophysical Research Letters
Continental hydroclimate dynamics and its responses during the Middle Eocene Climatic Optimum (MECO, ∼40 Ma) remain largely unexplored. Here, we present high‐resolution multi‐proxy records from four East Asian lake basins that demonstrate precipitation ...
Yiquan Ma   +6 more
doaj   +2 more sources

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   +4 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
exaly   +3 more sources

Cyclostratigraphy and astrochronology: Case studies from China. [PDF]

open access: yesPalaeogeogr Palaeoclimatol Palaeoecol, 2020
A high-precision geologic time scale is the essential key for understanding the Earth's evolutionary history and geologic processes. Astronomical tuning of orbitally forced stratigraphic records to construct high-resolution Astronomical Time Scales (ATS) has led to a progressive refinement of the geologic time scale over the past two decades.
Huang C, Ogg JG, Kemp DB.
europepmc   +3 more sources

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