Results 201 to 210 of about 96,687 (276)

Volcanic forcing of the Lomagundi-Jatuli carbon isotope excursion. [PDF]

Proc Natl Acad Sci U S A
Blichert-Toft J, Konhauser K, Coutret B, Pinto M, Agranier A, El Albani A, Albarède F.   +6 more
europepmc   +1 more source

Palaeomagnetic and geochronologic results from lower cretaceous volcanics of the western Qiangtang terrane and implications for the Lhasa-Qiangtang collision. [PDF]

Sci Rep
Zhang Y, Bian W, Ma J, Wang S, Jiao X, Liang J, Wang S, Li X, Ding J, Zhao H, Li H, Wu H, Ma Y, Yang T.   +13 more
europepmc   +1 more source

Argon-based geochronology: advances, limitations and perspectives. [PDF]

Natl Sci Rev
Chang SC, Shi W, Wang Y, Wang F.
europepmc   +1 more source

A billion-year shift in the formation of Earth's largest ore deposits. [PDF]

Proc Natl Acad Sci U S A
Courtney-Davies L, Fiorentini M, Dalstra H, Hagemann S, Ramanaidou E, Danišik M, Evans NJ, Rankenburg K, McInnes BIA.   +8 more
europepmc   +1 more source

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U-Pb geochronology of grossular-andradite garnet

Chemical Geology, 2017
Abstract This study presents a new laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) based U-Pb geochronometric method for dating grossular-andradite (grandite) garnet. Grandite is a primary skarn mineral, therefore dating its growth directly dates hydrothermal activity.
S. Seman, D.F. Stockli, N.M. McLean
openaire   +2 more sources

How diverse is the source? Age, provenance, reworking, and overprint of Precambrian meta-sedimentary rocks of West Gondwana, Cameroon, from zircon U-Pb geochronology

Precambrian Research, 2021
The Nyong Complex and the Yaounde Group represent two crustal sequences of West Gondwana in Cameroon. We use U-Pb zircon geochronology on meta-sedimentary rocks to analyze their depositional age, provenance, and age of the high-grade metamorphic ...
S. Owona, L. Ratschbacher, Moussa Nsangou Ngapna, Afzal Muhammad Gulzar, J. M. Ondoa, G. Ekodeck   +5 more
semanticscholar   +1 more source

U–Pb ID-TIMS geochronology using ATONA amplifiers

Journal of Analytical Atomic Spectrometry, 2020
New low noise, large dynamic range amplifiers applied to Faraday measurements of small loads of Pb and U for geochronology.
Dawid Szymanowski, Blair Schoene
openaire   +1 more source

U–Pb geochronology of speleothems by MC-ICPMS

Quaternary Geochronology, 2006
Abstract Building upon the work of Richards et al. [1998. U–Pb dating of a speleothem of Quaternary age. Geochimica et Cosmochimica Acta 62, 3683–3688], we have developed a method for precise dating of speleothems beyond the range of the U–Th technique using the U–Pb decay scheme.
WOODHEAD J, HELLSTROM J, MAAS R, DRYSDALE R, ZANCHETTA, GIOVANNI, DEVINE P, TAYLOR E.   +6 more
openaire   +2 more sources

Bastnaesite: a promising U-Pb geochronological tool

Doklady Earth Sciences, 2010
One of the most complex problems in geochrono logical studies is dating endogenous ore processes. The application of the U–Pb method in solving this prob lem is constrained by the sufficiently narrow range of traditional mineral geochronometers, which, if present in ores, are strongly altered.
E. B. Sal’nikova, S. Z. Yakovleva, A. V. Nikiforov, A. B. Kotov, V. V. Yarmolyuk, I. V. Anisimova, A. M. Sugorakova, Yu. V. Plotkina   +7 more
openaire   +1 more source

Rapid U‐Pb Geochronology by Laser Ablation Multi‐Collector ICP‐MS

Geostandards and Geoanalytical Research, 2020
Detrital zircon (DZ) U‐Pb laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) has revolutionised the way geologists approach many Earth science questions.
K. Sundell, G. Gehrels, M. Pecha
semanticscholar   +1 more source