Results 31 to 40 of about 4,906 (222)

Relationship Between Orogenic Gold Mineralization and Crustal Shearing Along Ailaoshan‐Red River Belt, Southeastern Tibetan Plateau: New Constraint From Paleomagnetism

Geochemistry Geophysics Geosystems, 2018
A new perspective on the relationship between orogenic gold mineralization and crustal shearing is presented in this case study on the gold deposits along Ailaoshan‐Red River shear zone (ARSZ), southeastern Tibetan Plateau. The sinistral ductile shearing
Liang Gao, Qingfei Wang, Jun Deng, Shihong Zhang, Zhenyu Yang   +4 more
semanticscholar   +1 more source

Pangea B: an artifact of incorrect paleomagnetic assumptions?

Annals of Geophysics, 2001
The detailed plate reconstruction within Pangea megacontinent has been an ongoing debate among the paleomagnetic community for decades. The Pangea B hypothesis, implying a 3500 km Triassic dextral megashear on the Gondwana-Laurussia limit, has been ...
D. Vandamme, P. Rochette
doaj   +1 more source

Understanding the characteristics of loess strata and quaternary climate changes in Luochuan, Shaanxi Province, China, through core analysis

Open Geosciences, 2023
Profile sampling, which causes missing or overlapping horizons, has been generally used while studying loess stratigraphy and paleoclimate. Conversely, drill sampling of thick loess can provide a relatively complete and actual record of the Quaternary ...
Guo Jiao, Shi Jiansheng, Song Chao, Dong Qiuyao, Wang Wei   +4 more
doaj   +1 more source

A detailed paleomagnetic and rock-magnetic investigation of the Matuyama-Bruhnes geomagnetic reversal recorded in tephra-paleosol sequence of Tlaxcala(Central Mexico)

Frontiers in Earth Science, 2015
Geomagnetic reversals are global phenomena, for about 50 years the paleomagnetists attempted to acquire as many detailed records as possible using the magnetic memory of sediments and lava flows.
Ana Maria Soler-Arechalde, Avtandyl eGoguitchaichvili, Ángel eCarrancho, Sergey eSedov, Cecilia Irene Caballero-Miranda, Beatriz eOrtega, Berenice eSolís, Juan Julio Morales Contreras, Jaime eUrrutia-Fucugauchi, Francisco eBautista   +9 more
doaj   +1 more source

Linking Siberian Traps LIP Emplacement and End-Permian Mass Extinction: Evidence from Magnetic Stratigraphy of the Maymecha-Kotuy Volcanic Section

Geosciences, 2020
The Siberian Traps Large Igneous Provinces (LIP) emplacement is considered as one of possible triggers for the end-Permian global biotic crisis. However, relative timing of the onset of extinction and the main phase of the magmatic activity are not yet ...
Anton V. Latyshev, Anna M. Fetisova, Roman V. Veselovskiy   +2 more
doaj   +1 more source

Geochronology and Paleoenvironmental Changes of Late Pleistocene Sediments in the Ross Sea, Antarctica

Frontiers in Earth Science, 2022
The palaeoceanographic studies are largely limited by poor carbonate preservation in high-latitude regions. To improve our knowledge in this key area, we studied a sediment core (ANT32-RA05C) in terms of paleomagnetic and 230Th dating and geochemical ...
Guogang Li, Ruyuan Bu, Liang Yi, Bangqi Hu, Yunhai Li, Youjun Ji, Yixin Li, Liang Wang   +7 more
doaj   +1 more source

AN EARLY BIRD FROM GONDWANA: PALEOMAGNETISM OF LOWER PERMIAN LAVAS FROM NORTHERN QIANGTANG (TIBET) AND THE GEOGRAPHY OF THE PALEO-TETHYS

, 2017
The origin of the northern Qiangtang block and its Late Paleozoic–Early Mesozoic drift history remain controversial, largely because paleomagnetic constraints from pre-Mesozoic units are sparse and of poor quality.
Peiping Song, L. Ding, Zhenyu Li, P. Lippert, Yahui Yue   +4 more
semanticscholar   +1 more source

Virtual Directions in Paleomagnetism: A Global and Rapid Approach to Evaluate the NRM Components

Frontiers in Earth Science, 2017
We introduce a method and software to process demagnetization data for a rapid and integrative estimation of characteristic remanent magnetization (ChRM) components. The virtual directions (VIDI) of a paleomagnetic site are “all” possible directions that
M. J. Ramón, Emilio L. Pueyo, B. Oliva‐Urcia, J. Larrasoaña   +3 more
semanticscholar   +1 more source

Synchronous Emplacement of the Anorthosite Xenolith‐Bearing Beaver River Diabase and One of the Largest Lava Flows on Earth

Geochemistry, Geophysics, Geosystems, 2021
New geochronologic and paleomagnetic data from the North American Midcontinent Rift (MCR) reveal the synchronous emplacement of the Beaver River diabase, the anorthosite xenoliths within it, and the Greenstone Flow—one of the largest lava flows on Earth.
Yiming Zhang, Nicholas L. Swanson‐Hysell, Mark D. Schmitz, James D. Miller, Margaret S. Avery   +4 more
doaj   +1 more source

The Early Cretaceous Zaduo Granite, Eastern Qiangtang Terrane (China)—An Attempt to Constrain its Paleolatitude and Tectonic Implications

Frontiers in Earth Science, 2022
The Eastern Qiangtang Terrane is an orogenic-like belt around the Eastern Himalayan syntaxis (EHS). The deformation history of this terrane must be known to understand how the EHS region responded to the Lhasa-Qiangtang collision and the closure of the ...
Qiang Fu, Qiang Fu, Qiang Fu, Maodu Yan, Mark J. Dekkers, Chong Guan, Rosa A. de Boer, Liang Yu, Liang Yu, Wanlong Xu, Wanlong Xu, Bingshuai Li, Miaomiao Shen, Jingyu Zhang, Zunbo Xu, Zunbo Xu   +15 more
doaj   +1 more source