Results 71 to 80 of about 29,339 (247)

Age of hydrothermal processes in the central iberian zone (Spain) according TO U-Pb dating of cassiterite and apatite

Записки Горного института, 2017
Results of isotope-geochemical studies by PbLS step-leaching method of cassiterite from greisens located in Logrosán granite massif (Central Iberian Zone, Spain) and apatite from hydrothermal quartz-apatite vein on its exocontact indicate that in both ...
N. G. Rizvanova, S. G. Skublov, E. V. Cheremazova   +2 more
doaj   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook, Bruno V. Ribeiro, Janne Liebmann, Kai Rankenburg, Fred Jourdan, Ahmad Redaa, Jarred C. Lloyd, Thomas M. Belgrano, Carlos R. Corella Santa Cruz, Yujin Jegal, Julien Mercadier, Catherine Zimmermann, Jie Yu, Andreas Zametzer, Christopher L. Kirkland, Sarah E. Gilbert, Craig D. Storey, Luc S. Doucet, Isabelle Jones, Louisa Stokes, Thomas Zack, Delia Rösel, Denis Fougerouse, Jonas Kaempf, Priyanjan Datta, Hijas Hameed, Noreen J. Evans, Malcolm P. Roberts, Juraj Farkas, Stijn Glorie, Celia Mayers, R. Adam Frew, Sarah Al Odeh, Chloe E. Roche, Massimo Chiaradia, Alicia M. Cruz‐Uribe, Alan S. Collins, Andreas Karlsson, Anusha Shantha Kumara   +38 more
wiley   +1 more source

Data tables - Lake Zabinskie Geochronology

, 2019
The data tables included in this file are the relevant datasets for the manuscript "Zander, P.D., Szidat, S., Kaufman, D., Żarczyński, M., Poraj-Górska, A.I., Boltshauser-Kaltenrieder, P., Grosjean, M. Miniature radiocarbon measurements (< 150 μg C) from
Kaufmann, Darrell Scott, Żarczyński, Maurycy, Szidat, Sönke, Grosjean, Martin, Poraj-Górska, Anna, Zander, Paul David, Boltshauser-Kaltenrieder, Petra   +6 more
core  

Table 1: Lu-Hf geochronology

, 2023
Garnet Lu-Hf geochronology data presented in the manuscript Formation of the Xigaze Metamorphic Sole under the Tibetan continental margin reveals generic characteristics of the subduction initiation process.
Matthijs A. Smit (10118464), Antoine Godet (16954156), Marco Maffione (11572117), Shun Li (11850579), Kip Hodges (2865995), Jared Butler (16954157), Douwe van Hinsbergen (8148261), François Fournier-Roy (16954104), Carl Guilmette (8148229)   +8 more
core   +1 more source

SC‐550: A Sintered Calcite Reference Material for In Situ U‐Pb Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points New calcite reference material (SC‐550) produced by high‐temperature and high‐pressure sintering of nano‐particulate powder from a microbial limestone. Homogeneous U content (2.3 ± 0.4 μg g‐1) and U‐Pb isotope ratios (< 0.6% RSD for 207Pb/206Pb; < 3% RSD for 238U/206Pb).
Lorenzo Tavazzani, Nico Kueter, Dawid Szymanowski, Felix Marxer, Ismay Vénice Akker, Marcel Guillong, Massimo Chiaradia, Yannick Buret   +7 more
wiley   +1 more source

(Table 2) Geochronology at DSDP Hole 44-391

, 1983
(Table 2) Geochronology at DSDP Hole 44 ...
Sheridan, Robert E, Gradstein, Felix M, Felix M Gradstein (6886943), Robert E Sheridan (6886166)   +3 more
core   +1 more source

Maximum depositional age biased on U-Pb detrital zircon geochronology.

, 2020
Maximum depositional age biased on U-Pb detrital zircon geochronology.
Jorge Fernando Genise (8375487), Eduardo Jiménez-Hidalgo (5030918), Rosalía Guerrero-Arenas (7515878)   +2 more
core   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source

Phoenix U-Pb ID-TIMS Geochronology Methods

, 2021
Methods used by the Geochronology group at the University of Geneva for U-Pb analyses of apatite, baddeleyite and zircon using the Phoenix TIMS ...
Gaynor, Sean
core   +1 more source

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

Sedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu, Huan Li, Wei Wang, Yangdong Gao, Guangrong Peng, Lin Ding, Eric O. Ansah, Pei Liu, Xiaoyan Li, Saju Menacherry, Hongtao Zhu, Xianghua Yang, Zhiwei Zeng   +12 more
wiley   +1 more source