Results 21 to 30 of about 291 (173)

Orbital and Millennial‐Scale Cycles Paced Climate Variability During the Late Paleozoic Ice Age in the Southwestern Gondwana

Geochemistry, Geophysics, Geosystems, 2020
Orbital cycles are related to variations of Earth's orbit through time and exert profound control on glacial and interglacial climates due to changes in insolation.
M. V. L. Kochhann, J. Cagliari, K. G. D. Kochhann, D. R. Franco   +3 more
doaj   +1 more source

Ordovician geology and stratigraphy of China: A synthesis [PDF]

Estonian Journal of Earth Sciences, 2023
China presently comprises several tectonic blocks and regions assembled over geological time and having independent histories. During the Ordovician, these blocks included South China, North China, Tarim, Qaidam, Junggar, Qiangtang-Qamdo, Lhasa and ...
Yuandong Zhang, Renbin Zhan, Yongyi Zhen, Wenhui Wang, Yan Liang, Xiang Fang, Rongchang Wu, Kui Yan, Junpeng Zhang, Wenjie Li   +9 more
doaj   +1 more source

CycloNet: European Cyclostratigraphy Network

, 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, Sinnesael, Matthias, de Vleeschouwer, David, Zeeden, Christian   +3 more
openaire   +3 more sources

Research Status and Development Direction of Well Log Cyclostratigraphy

Cejing 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   +1 more source

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

Frontiers 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, Nadine Berner, Alan L. Deino, Verena Foerster, K. Hauke Kraemer, K. Hauke Kraemer, Norbert Marwan, Martin H. Trauth   +7 more
doaj   +1 more source

Identification of Astronomical Cycles in Upper Cretaceous Sifangtai Formation and Constraints on Depositional Age of Uranium Mineralized Sandstones in Qian’an Area of Songliao Basin

Yuanzineng kexue jishu
Cyclostratigraphy is widely applied in establishing high-precision sequence stratigraphic frameworks and astronomical time scales, making it an important field in the quantitative study of sedimentology.
WANG Junxian1, 2, ,  LI Ziying1, 2, ,  XING Zuochang1, 2,  LIU Jungang1, 2,  SHI Qingping1, 2,  TIAN Mingming1, 2,  JIA Licheng1, 2
doaj   +1 more source

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

Geophysical 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, Xiaohao Wei, Vadim A. Kravchinsky, Leping Yue, Yan Zheng, Jie Qin, Lijun Yang, Minghao Ma, Feng Xian, Hujun Gong, Yunxiang Zhang, Xiaofan Liu   +11 more
doaj   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

The Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source

The Cyclostratigraphy of the Eastern Paratethys Konkian: Zelensky Section (Taman Peninsula)

Russian Journal of Earth Sciences
The Eastern Paratethys Konkian sedimentary successions of the Zelensky section (Taman peninsula, Russia) were investigated by cyclostratigraphy methods based on magnetic susceptibility measurements.
Rostovtseva Yu.
doaj   +1 more source

The ∼170 kyr astronomical cycle in the Early Permian Lucaogou Formation of the Junggar Basin

Frontiers 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, Yuyin Li, Yuyin Li, He Huang, He Huang, Yuan Gao, Yuan Gao, Yongqiang Cao, Hu Cheng, Chenlu Hei, Shuang Liang   +10 more
doaj   +1 more source