Results 41 to 50 of about 2,024 (239)

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

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

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, Shao Longyi, Wang Xuetian, Hua Fanghui, Lu Jing   +4 more
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

Supplemenary for "Earth-Moon Dynamics from Cyclostratigraphy Reveals Possible Ocean Tide Resonance in the Mesoproterozoic Era"

, 2023
Supplementary Materials forEarth-Moon Dynamics from Cyclostratigraphy Reveals Possible Oceanic Resonance in the Mesoproterozoic ...
Maoyang Zhou (12127827), Linda A. Hinnov (8919602), Huaichun Wu (12495228)   +2 more
core   +1 more source

Hierarchical Milankovitch and sub-Milankovitch cycles in the environmental magnetism of the lower Shahezi Formation, Lower Cretaceous, Songliao Basin, northeastern China

Frontiers in Earth Science, 2023
SK-2 borehole in Songliao Basin provides unprecedented geological materials for investigating the Early Cretaceous continental paleoenvironment and paleoclimate in northeastern China.
Shujing Zhang, Shujing Zhang, Huaichun Wu, Huaichun Wu, Shihong Zhang, Tianshui Yang, Haiyan Li, Qiang Fang, Qiang Fang, Meinan Shi, Meinan Shi   +10 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

Constraints on Earth-Moon dynamical parameters from Eocene cyclostratigraphy

, 2022
International audienceThe theoretical prediction of Earth-Moon dynamics in deep geologic time is hampered by limited knowledge of Earth's past tidal dissipation and dynamical ellipticity.
Boulila, Slah, Hinnov, Linda, A., Hinnov, Linda   +2 more
core   +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

Portable X‐ray fluorescence spectroscopy as a tool for cyclostratigraphy [PDF]

, 2019
Cyclostratigraphic studies are used to create relative and high‐resolution timescales for sedimentary successions based on identification of regular cycles in climate proxy data.
Kemp, David B., Saker-Clark, Matthew, Coe, Angela L., Matthew Saker‐Clark, Angela L. Coe, David B. Kemp   +5 more
core   +1 more source

REPRODUCIBILITY IN CYCLOSTRATIGRAPHY: INITIATING AN INTERCOMPARISON PROJECT

Geological Society of America Abstracts with Programs, 2017
The study of astronomical climate forcing and the application of cyclostratigraphy have experienced a spectacular growth over the last decades. In the field of cyclostratigraphy a broad range in methodological approaches exist. However, comparative study between the different approaches is lacking.
Sinnesael, Matthias, De Vleeschouwer, David, Zeeden, Christian, Claeys, Philippe   +3 more
openaire   +4 more sources