Results 21 to 30 of about 1,940 (232)
In situ U-Pb Isotope Dating Techniques for Sandstone-type Uranium Deposits
Yankuang ceshi, 2020 BACKGROUND Uranium mineral dating has been difficult to ascertain in mineralization chronology. With the development of in situ U-Pb isotope dating technology, it is possible to directly date ore minerals (uranium minerals).
XIAO Zhi-bin +6 more
doaj +1 more source
U–Pb zircon ages of the host rocks of the Juomasuo Au–Co–Cu deposit, northeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2017 The Salittu Formation is one of the few metavolcanic successions in the U-Pb zircon single grain dating using the LA-MC-ICP-MS technique was utilized to determine the age of the host rocks of the Juomasuo Au-Co-Cu deposit located in the late Archean ...
P. Nikkola, I. Mänttäri, O.T. Rämö
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Yankuang ceshi, 2020 OBJECTIVES The Xiuwacu Mo-W deposit is a typical hydrothermal quartz vein deposit in the Yidun island arc Cu-Mo metallogenic belt, northwest Yunnan. Numerous studies have been conducted on rock and ore chronology and petrogenesis, dynamics, but its ore ...
WANG Zhong-qiang +7 more
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In situ determination of antimony isotope ratios in Sb minerals by femtosecond LA-MC-ICP-MS
Journal of Analytical Atomic Spectrometry, 2021 Here we present a method for in situ determination of stable antimony (Sb) isotope compositions by ultraviolet (UV)-femtosecond-laser-ablation-multi-collector-ICP-MS (fs-LA-MC-ICP-MS).
A. B. Kaufmann +4 more
openaire +2 more sources
UPb LA-(MC)-ICP-MS dating of rutile: New reference materials and applications to sedimentary provenance [PDF]
Chemical 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
In situ boron isotope measurements of natural geological materials by LA-MC-ICP-MS
Chinese Science Bulletin, 2010 There are two main methods to determine boron isotopic composition. One is the solution method, in which boron is purified after the samples are dissolved in solution and the boron isotope ratios are determined by thermal ionization mass spectrometry (P-TIMS and N-TIMS) or multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS).
KeJun Hou +4 more
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Evaluation of UV-fs-LA-MC-ICP-MS for Precise in situ Copper Isotopic Microanalysis of Cubanite
Analytical Sciences, 2013 We evaluated the capabilities of an in situ method for measuring copper isotopes of cubanite using UV-fs-LA-MC-ICP-MS. A comparison of the UV-fs laser results with those obtained from the NIR-fs laser system shows that there is obviously an improvement in the precision (
IKEHATA, Kei, HIRATA, Takafumi
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Advanced Functional Materials, EarlyView.All‐solution‐processed, low‐cost extended short‐wavelength infrared photodetectors are realized by coupling colloidal HgTe quantum dots to plasmonic In2O3:Sn,F nanocrystals. Localized surface plasmon resonances boost and spectrally tailor light absorption between 1500 and 3000 nm, enabling responsivities above 40 A W−1.
Kseniia A. Sergeeva +9 more
wiley +1 more source
Lithium Isotopic Analysis of Spodumene by Secondary Ion Mass Spectrometry. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale Lithium (Li) stable isotopes can provide insight into fluid–rock interaction and magmatic differentiation. Therefore, it is essential to develop an accurate and precise method to determine the Li isotope signature in spodumene.
Sharpe R, Fayek M, Luo JC.
europepmc +2 more sources
Atmosphere, 2018 Two peat cores from two bogs were used to record changes in the atmospheric Pb accumulation rate (Pb AR) in Belgium during the Roman period. The two records were compared to assess the reliability of peat cores as archives of atmospheric Pb deposition ...
Mohammed Allan +5 more
doaj +1 more source