Results 31 to 40 of about 36,721,275 (294)

In-situ Micro-scale Pb Isotope Identification Characteristics of Metallogenic and Non-metallogenic Pyrites in Sandstone-type Uranium Deposits

open access: yesYankuang ceshi, 2022
BACKGROUND Sandstone-type uranium deposits contain a large number of pyrites of different shapes and stages. It is difficult to accurately discriminate the pyrite formed before, during or after the metallogenic period solely by observation of pyrite ...
ZHANG Xiaorui   +11 more
doaj   +1 more source

High spatial resolution analysis of Pb and U isotopes for geochronology by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS)

open access: yesAnais da Academia Brasileira de Ciências, 2009
Age determinations using the 235U and 238U radioactive decay series to the daughter isotopes 207Pb and 206Pb, respectively, using the mineral zircon (ZrSiO4), are widely used to decipher geological processes.
Bernhard Bühn   +3 more
doaj   +1 more source

Combined U-Pb and Lu-Hf isotope analyses by laser ablation MC-ICP-MS: methodology and applications

open access: yesAnais 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   +3 more
doaj   +1 more source

UPb LA-(MC)-ICP-MS dating of rutile: New reference materials and applications to sedimentary provenance [PDF]

open access: yesChemical Geology, 2013
In response to the general lack of sufficiently abundant and high quality rutile UPb reference materials for in situ geochronology, we have characterised two new potential rutile ~ 1.8 Ga reference materials (Sugluk-4 and PCA-S207) from granulite facies belts of the Canadian Shield, namely the northern Cape Smith Belt of Quebec and the Snowbird ...
Bracciali, Laura   +4 more
openaire   +4 more sources

kleinerELM/LA-ICP-MS: Script to process LA-ICP-MS data and combine it with EDX phase masks

open access: yes, 2022
Script to process LA-ICP-MS data from ...
Florian Kleiner, Kleiner, Florian
core   +1 more source

Columbite-Group Minerals from New York Pegmatites: Insights from Isotopic and Geochemical Analyses

open access: yesGeosciences, 2018
Columbite crystals from niobium-yttrium-fluorine (NYF) pegmatites lacking zircon or containing metamict cyrtolite were analyzed for major and minor elements (Electron Microprobe (EMP)), trace elements (Laser Ablation-Inductively Coupled Plasma-Mass ...
Marian V. Lupulescu   +4 more
doaj   +1 more source

Development of an analytical method for accurate and precise determination of rare earth element concentrations in geological materials using an MC-ICP-MS and group separation

open access: yesFrontiers in Chemistry, 2023
The concentration of rare earth elements (REEs) in geological materials including SLRS-6 (natural water certified reference material) and JB1b, JA1, and JG2 (Standard Rock Materials of Geological Survey of Japan) can be used as a tracer to characterize ...
Seung-Gu Lee, Kyung-Seok Ko
doaj   +1 more source

Simultaneous in situ determination of U‐Pb and Sm‐Nd isotopes in monazite by laser ablation ICP‐MS

open access: yesGeochemistry, Geophysics, Geosystems, 2014
Results are presented for in situ simultaneous determination of U‐Pb and Sm‐Nd isotopes in monazite using the Laser Ablation Split‐Stream (LASS) method. This method uses a laser ablation system coupled to a magnetic‐sector inductively coupled plasma mass
Dylan J. Goudie   +4 more
doaj   +1 more source

Unusual open-system behaviour revealed by LA-MC-ICP-MS U–Th dating of coral and coralline algae bio-carbonates

open access: yesComptes Rendus. Géoscience, 2023
This paper presents new U–Th ages obtained by LA-MC-CP-MS (laser ablation - multi-collector - inductively coupled plasma - mass spectrometry) on coral samples from a sedimentary core of the Tunis lagoon. The ages and calculated ($\mbox {}^{234}$U/$\mbox {
Condomines, Michel   +3 more
doaj   +1 more source

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) 87Sr/86Sr isotope data from scythian Iron age barrows in Altai, Russia

open access: yesData in Brief, 2020
This paper reports LA-ICP-MS 87Sr/86Sr isotopic data collected from archaeological human remains uncovered in Manzherok region, Altai Republic, Russian Federation (“Mobility of nomads in central Asia: chronology and 87Sr/86Sr isotope evidence from the ...
Dalia A. Pokutta   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy