Results 11 to 20 of about 189,480 (262)
Modeling apparent Pb loss in zircon U–Pb geochronology [PDF]
GeochronologyThe loss of radiogenic Pb from zircon is known to be a major factor that can cause inaccuracy in the U–Pb geochronological system; hence, there is a need to better characterize the distribution of Pb loss in natural samples.
G. R. Sharman, M. A. Malkowski
doaj +2 more sources
Mongolian Geoscientist, 2022 The Edren range of the Trans-Altai zone is situated in the central south part of the Central Asian Orogenic Belt. The Edren range is composed primarily of volcano-sedimentary rocks that were weakly metamorphosed during the Devonian to Carboniferous ...
Otgonkhuu Javkhlan +4 more
doaj +1 more source
Impact and Correction of Analytical Positioning on Accuracy of Zircon U-Pb Dating by SIMS
Frontiers in Chemistry, 2020 Secondary ion mass spectrometry (SIMS) is one of the most important analytical tools for geochronology, especially for zircon U-Pb dating. Due to its advantages in spatial resolution and analytical precision, SIMS is the preferred option for multi-spot ...
Yu Liu +13 more
doaj +1 more source
Dizhi lixue xuebao, 2022 The Longquan pluton is a rare Caledonian granitic rock mass in southern Zhejiang. Studies on the Longquan pluton using petrology, geochemistry, and chronology were conducted in this paper, which reveal that it is composed of granite-monzogranite ...
LIU Yuandong +5 more
doaj +1 more source
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
doaj +1 more source
Is there a Grenvillian basement in the Guerrero-Morelos Platform of Mexico?
Geologica Acta, 2007 In the Guerrero-Morelos platform (Guerrero State, Mexico) the adakitic rocks of Early Tertiary age contain abundant hornblende-rich tonalite xenoliths. Zircon crystals have been concentrated from both adakites and xenoliths, and dated using in-situ U-Pb ...
G. Levresse +3 more
doaj +1 more source
Frontiers in Earth Science, 2023 To reveal the genesis of Makeng-style iron polymetallic deposits from SE China in the paleo-Pacific tectonic domain, a new analytical method of LA-ICPMS garnet U-Pb dating and rare Earth element analysis was conducted for the Makeng, Luoyang, Dapai and ...
Sen Wang +13 more
doaj +1 more source
U-Pb geochronology of the Fort Augustus granite gneiss: constraints on the timing of Neoproterozoic and Palaeozoic tectonothermal events in the NW Highlands of Scotland [PDF]
, 2001 The West Highland granite gneiss suite in Inverness-shire, Scotland, represents a series of S-type, anatectic granites formed by partial melting of host Neoproterozoic metasediments of the Moine Supergroup.
Kinny, P.D. +14 more
core +1 more source
Growth of the Archean sialic crust as revealed by zircon in the TTGs in eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2021 U–Pb age determinations on zircon from granitoids in the Archean of eastern Finland were conducted using the SIMS, LA-ICP-MS and TIMS techniques, with an emphasis on low-HREE granitoids.
Pentti Hölttä +5 more
doaj +1 more source
Towards a U-Pb age map for northern Australia [PDF]
ASEG Extended Abstracts, 2018 Understanding the geological evolution and resource prospectivity of a region relies heavily on the integration of different geological and geophysical datasets.
Jade Anderson, Geoff Fraser
openaire +1 more source