Results 21 to 30 of about 3,361 (218)

U-Pb Isotopic Dating of Monazite in Granite from the Changjiang Uranium Orefield, Northern Guangdong Province and Its Geological Significance

Yankuang ceshi, 2022
BACKGROUND The Changjiang uranium ore field in the southern margin of the Zhuguangshan complex pluton is a typical granite-type uranium ore field in China. Zircon U-Pb dating has been used to date ore-bearing granites. However, due to the high content of
CHEN Yan, PAN Jia-yong, ZHONG Fu-jun, WAN Jian-jun, YAN Jie, LIU Wen-quan, LI Hai-dong   +6 more
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In-situ zircon U-Pb dating method by LA-ICP-MS and discussions on the effect of different beam spot diameters on the dating results

Dizhi lixue xuebao, 2022
By using the newly introduced GeoLas HD 193 nm ArF excimer laser ablation system and the Agilent 7900 quadrupole inductively coupled plasma mass spectrometer (ICP-MS) in the Key Laboratory of Paleomagnetism and Tectonic Reconstruction at the Institute of
WANG Sen, ZHANG Shuanhong, ZHANG Qiqi, LIANG Xia, KONG Linghao, HU Guohui, WANG Kai, WANG Hongyu, CAI Yuhang   +8 more
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U-Pb (ID-TIMS) geochronological method and “in-situ” SIMS zircon dating: possibilities and constrains

Литосфера, 2020
Research subject and methods. The work is based on a comparative study of the data obtained by the authors and those published in literature on U-Pb ID-TIMS and “in-situ” isotopic examination of zircons extracted from a number of Ural geological objects (
Yu. L. Ronkin, A. V. Maslov, S. Sindern
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Analytical Conditions for U-Th-Pb Dating of Monazite by LA-ICP-MS

Yankuang ceshi, 2021
BACKGROUND Compared with zircon U-Pb dating, monazite has more advantages in the dating of some metamorphic rocks or highly differentiated rocks.
ZHANG Ya, LI Quan-zhong, YAN Jun, XIE Jian-cheng, YANG Qing-liang, GAO Ling   +5 more
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Geological characteristics and metallogenic age of Tengshan'ao Sn deposit in Dayishan of South Hunan and its prospecting significance

Solid Earth Sciences, 2021
The Tengshan'ao Sn deposit, located at the Dayishan ore field, Nanling Range, is one of the recently explored deposits in this region. In this study, LA-MC-ICP-MS cassiterite U–Pb and muscovite 40Ar-39Ar isotopic dating analyses for altered granite-type ...
Zunzun Zhang, Yongyun Ning, Youyue Lu, Jingya Cao, Jianming Fu, Zhuang Zhao, Jian Guo, Liyan Ma, Zhengwei Qin, Jianfeng Li   +9 more
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Uranium incorporation in fluorite and exploration of U–Pb dating [PDF]

Geochronology, 2021
The age of ore deposits constitutes a decisive element in understanding their formation. Deciphering their precise chronology may be a challenge in the absence of mineral phases that can be dated by conventional geochronometers.
L. Lenoir, T. Blaise, A. Somogyi, B. Brigaud, J. Barbarand, C. Boukari, J. Nouet, A. Brézard-Oudot, M. Pagel   +8 more
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A global zircon U–Th–Pb geochronological database [PDF]

Earth System Science Data, 2023
Since the start of the 21st century, the widespread application of ion probes has promoted the mass output of high-precision and high-accuracy U–Th–Pb geochronological data.
Y. Wu, X. Fang, J. Ji
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Geodynamic seawater-sediment porewater evolution of the east central Atlantic Paleogene ocean margin revealed by U-Pb dating of sedimentary phosphates

Frontiers in Earth Science, 2022
Emerging evidence suggests that U-Pb and Lu-Hf ages of sedimentary apatite group minerals are often younger than their biostratigraphic ages. However, U-Pb dating of exquisitely preserved carbonate fluorapatite (CFA) is rare.
Jérémie Aubineau, Fleurice Parat, Ernest Chi Fru, Radouan El Bamiki, Olivia Mauguin, Fabien Baron, Marc Poujol, Michel Séranne   +7 more
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In situ U–Pb dating of 4 billion-year-old carbonates in the martian meteorite Allan Hills 84001 [PDF]

Geochronology, 2022
In situ carbonate U–Pb dating studies have proliferated dramatically in recent years. Almost all these studies have targeted relatively young terrestrial calcite up to Carboniferous in age.
R. Tartèse, I. C. Lyon
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Quaternary caldera-forming eruptions at the Sanzugawa caldera, NE Japan, revealed by zircon U-Pb geochronology

Frontiers in Earth Science, 2023
Recent application of zircon U-Pb geochronology has contributed to deciphering the evolution of caldera systems worldwide. However, in the Tohoku region, NE Japan, this is not the case, although it is well studied as a typical island arc subduction ...
Hisatoshi Ito
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