Results 21 to 30 of about 5,011,359 (270)
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 +8 more
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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 +5 more
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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 +9 more
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U‐Pb dating of a remagnetized Paleozoic limestone [PDF]
Geophysical Research Letters, 1991 The Upper Ordovician Trenton Group of New York State is one of a number of Appalachian limestones which yields paleomagnetic poles suggesting disturbance in the late Paleozoic. Calcite fractions dissolved from samples of the Trenton Limestone define a 238U‐206Pb age of 454±8 Ma (MSWD=12.8) in excellent agreement with 40Ar−39 Ar and U‐Pb ages for the ...
DeWolf, Charles P., Halliday, Alex N.
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Timing of deposition, orogenesis and glaciation within the Dalradian rocks of Scotland: constraints from U-Pb zircon ages [PDF]
, 2002 The stratigraphical and structural continuity of the Late Proterozoic Dalradian rocks of the Scottish Highlands is re-examined in the light of new U-Pb zircon ages on the tuffs belonging to the Tayvallich Volcanic Formation (601 ñ 4 Ma), and on the late ...
Redwood, S.D. +7 more
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U–Pb and Th–Pb dating of apatite by LA-ICPMS [PDF]
Chemical Geology, 2011 Abstract Apatite is a common U- and Th-bearing accessory mineral in igneous and metamorphic rocks, and a minor but widespread detrital component in clastic sedimentary rocks. U–Pb and Th–Pb dating of apatite has potential application in sedimentary provenance studies, as it likely represents first cycle detritus compared to the polycyclic behavior of
David M. Chew +2 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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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 +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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