Results 11 to 20 of about 16,559 (147)

Zircon U-Pb and Lu-Hf Isotopic Dating of Magmatic Rocks in the Wunugetushan Porphyry Copper-Molybdenum Deposit, Inner Mongolia

Yankuang ceshi, 2022
BACKGROUND The Wunugetushan copper-molybdenum deposit located in the northwest of the Erguna—Hulun fault is a large porphyry copper-molybdenum deposit. Magmatic rocks are widespread in the mining area. OBJECTIVES In order to determine the emplacement age
ZHANG Xuejun, ZHANG Yaoyao, LIU Kai, HE Xiaolong, WANG Shuxun, JIA Wuhui, ZHAO Zenan   +6 more
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Cross sections for (n, 2n), (n, p), (n, a) and (n, n′) reactions on hafnium isotopes around the neutron energy of 14 MeV

New Journal of Physics, 2020
In view of the fact that the fast-neutron experimental cross-section data of hafnium which is an important structural material of fusion reactor are few and there are the great differences in their evaluation values, several activation cross sections of (
Yong Li, Fengqun Zhou, Yueli Song, Xinyi Chang, Pengfei Ji, Xiaojun Sun, Guoqiang Li   +6 more
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Implications of Nd isotopic mapping for crustal composition and metallogenesis in the Sanjiang orogenic belt (SW China)

Frontiers in Earth Science, 2023
The Sanjiang orogenic belt, located in southwestern China and the southeastern Tibetan Plateau, includes a variety of economically important metal deposits.
Lingling Yuan, Peng Chai, Zengqian Hou, Yuanchuan Zheng, Haihui Quan   +4 more
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A comparison between in situ monazite Lu–Hf and U–Pb geochronology [PDF]

Geochronology
In complex metamorphic rocks, monazite U–Pb dates can span a wide concordant range, leading to ambiguous geological interpretations (e.g. slow protracted cooling versus multiphase growth).
A. T. De Vries Van Leeuwen, A. T. De Vries Van Leeuwen, A. T. De Vries Van Leeuwen, S. Glorie, S. Glorie, M. Hand, M. Hand, J. Mulder, S. E. Gilbert   +8 more
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ZIRCON IN HIGH‐MG DIORITE OF THE CHELYABINSK MASSIF (SOUTH URALS): MORPHOLOGY, GEOCHEMICAL SIGNATURE, AND PETROGENESIS IMPLICATIONS

Геодинамика и тектонофизика, 2019
The article is focused on the morphology, trace element composition, U‐Pb and Lu‐Hf systems in zircon in high‐Mg diorite of the Chelyabinsk granitoid massif.
T. A. Osipova, G. A. Kallistov, M. V. Zaitseva   +2 more
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Detrital zircon LA-ICPMS U-Pb and Lu-Hf signature from the Mesoarchean Keonjhar Quartzite: Implications for the nature of Archean continental crust and geodynamics

Geosystems and Geoenvironment, 2022
The ∼715 m thick matured siliciclastics of the Keonjhar Quartzite, North of the homonymous town, Singhbhum Craton, eastern India, represents one of the best-preserved examples of sedimentation during Mesoarchean time. The LA-ICPMS U-Pb ages with peaks at
Saheli De, C.A. Rosiere, Joydip Mukhopadhyay   +2 more
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Combined U-Pb and Lu-Hf isotope analyses by laser ablation MC-ICP-MS: methodology and applications

Anais da Academia Brasileira de Ciências, 2010
The Lutetium-Hafnium isotopic system represents one of the most innovative and powerful tools for geochronology and isotopic studies. Combined U-Pb and Lu-Hf in situ analyses on zircon by LA-MC-ICP-MS permit to characterize isotopically the host magma ...
Massimo Matteini, Elton L. Dantas, Marcio M. Pimentel, Bernhard Bühn   +3 more
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Apatite Triple Dating (Lu–Hf, U–Pb, FT) Constrains Deformation and Cooling in the Coompana and Madura Provinces, Western Australia [PDF]

Lithosphere
Combined apatite Lu–Hf, U–Pb, and fission track (AFT) triple dating affords the opportunity to investigate the ~60 and 730°C thermal history of a study area.
Alejandra Bedoya, Stijn Glorie, Martin Hand, Christopher L. Kirkland, David E. Kelsey, Angus Nixon, Geoff Fraser   +6 more
doaj   +1 more source

Geochemical characteristics of the Tertiary and Quaternary eolian deposits in eastern Gansu province: Implications for provenance and weathering intensity

Dizhi lixue xuebao, 2021
An eolian deposit section named Shaozhai, which has been developed since the Tertiary in eastern Gansu province, was analyzed for major-trace elements and Sm-Nd isotopic compositions to explore the relationship for the provenance and weathering intensity
QI Lin, QIAO Yansong, LIU Zongxiu, WANG Yan, PENG Shasha   +4 more
doaj   +1 more source

Validation of digestion and element separation methods and a new data reduction program (IsotopeHf®) for Lu-Hf isotope dilution analysis by MC-ICP-MS

Revista Mexicana de Ciencias Geológicas, 2017
The Lu-Hf isotope system is not only an important geochrono- meter but also a powerful tool for petrogenetic studies. To determine reliable analytical results of this system from rock and mineral samples, a protocol is established that includes ...
Reneé González-Guzmán, Bodo Weber, María D. Tazzo-Rangel, Luigi Solari   +3 more
doaj   +1 more source