Results 221 to 230 of about 96,687 (276)

Zircon U–Pb geochronology and Hf isotope of granitoids in East Kunlun: Implications for the Neoproterozoic magmatism of Qaidam Block, Northern Tibetan Plateau

Precambrian Research, 2018
The Neoproterozoic granitoids in East Kunlun Orogen (EKO) record critical information on the composition and evolution of the early crustal materials, as well as the Precambrian tectonic evolutionary history of the Qaidam Block, northern Tibetan Plateau.
Dengfeng He, Yunpeng Dong, Xiaoming Liu, Xiaohu Zhou, Feifei Zhang, Shengsi Sun   +5 more
semanticscholar   +1 more source

Revolution and Evolution: 100 Years of U-Pb Geochronology

Elements, 2013
U–Pb geochronology has its roots in a spectacular decade of discovery. Within about ten years of the discovery of radioactivity in 1896, old ideas about the nature of matter were overthrown and the seeds of geochronology were planted. After giants of physics like Ernest Rutherford moved on to other research, Arthur Holmes nurtured the new field of ...
openaire   +1 more source

A new method integrating high-precision U–Pb geochronology with zircon trace element analysis (U–Pb TIMS-TEA)

Geochimica et Cosmochimica Acta, 2010
Increased precision in isotope-dilution thermal ionization mass spectrometry (ID-TIMS) U–Pb geochronology has revealed age complexities in zircon populations that require new tools for understanding how the growth of zircon is related to geologic processes.
Schoene, B., Latkoczy, C., Schaltegger, Urs, Günther, D.   +3 more
openaire   +2 more sources

Joint Compositional Calibration: An Example for U–Pb Geochronology

2016
This contribution explores several issues arising in the measurement of a (geo)chemical composition with Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS), specially in the case that the quantities of interest are linear functions of (log)-ratios.
R. Tolosana-Delgado, K. G. van den Boogaart, E. Fišerová, K. Hron, I. Dunkl   +4 more
openaire   +1 more source

The connection between hydrothermal fluids, mineralization, tectonics and magmatism in a continental rift setting: Fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany

Geochimica et Cosmochimica Acta, 2018
Understanding the physical basics of tectonic events, related fluid flow and ore deposition represents one of the great challenges in modern geosciences.
B. Walter, A. Gerdes, I. Kleinhanns, I. Dunkl, H. Eynatten, S. Kreissl, G. Markl   +6 more
semanticscholar   +1 more source

In situ calcite U−Pb geochronology by high-sensitivity single-collector LA-SF-ICP-MS

Science China. Earth Sciences, 2022
Shitou Wu, Yueheng Yang, N. Roberts, Ming Yang, Hao Wang, Zhongwu Lan, Bohang Xie, Tianyi Li, Lei Xu, Chaoyu Huang, Liewen Xie, Jinhui Yang, Fuyuan Wu   +12 more
semanticscholar   +1 more source

Sr-Nd-Hf isotopic constraints and U-Pb geochronology of the Arroio Pedrado Gneisses, Dom Feliciano Belt, Brazil: A 680 Ma shoshonitic event in the final stages of The Piratini Arc evolution

Journal of South American Earth Sciences, 2019
In this work we present whole-rock and isotopic (Sr-Nd-Hf) chemistry data and zircon U-Pb geochronology from new occurrences of the Arroio Pedrado Gneisses, located near the Brazil/Uruguay border in the southeastern sector of the Dom Feliciano Belt ...
D. T. Vieira, Edinei Koester, R. C. Ramos, C. Porcher   +3 more
semanticscholar   +1 more source

U-Pb geochronology of Paraná volcanics combined with trace element geochemistry of the zircon crystals and zircon Hf isotope data

Journal of South American Earth Sciences, 2019
The Parana volcanic province is a window into mantle and crustal processes in the Cretaceous. The variability and complexity of this province can be determined through the study of minerals.
L. Hartmann, S. Baggio, Matheus Philipe Brückmann, Daniel Barbosa Knijnik, C. Lana, H. Massonne, J. Opitz, V. Pinto, Kei Sato, C. Tassinari, K. R. Arena   +10 more
semanticscholar   +1 more source

Applications of High-Precision U-Pb Geochronology

The perpetual and persistent forward march of time is a geoscientist’s reference frame for understanding Earth’s natural changes that manifest in all scales of natural materials (e.g., minerals, fossils, glaciers, rocks, mountain belts, cratons). While indicators of relative timing can be abundant in natural materials (e.g.
openaire   +1 more source

Ch3 U-Pb Detrital Zircon Geochronology Datasets

This file contains all U-Pb zircon geochronology results collected at the University of Arizona -  Laserchron Center and Washington State University Detailed datasets include laser settings and counts per second for each analysis See summary for all U-Pb detrital zircon analyses for GPS, geographic location, and sample name.
openaire   +1 more source