Results 61 to 70 of about 22,282 (212)

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

(Table 23) Chemical composition of rocks from the ferrodiorite-granodiorite series of the Peyve Seamount

, 1991
(Table 23) Chemical composition of rocks from the ferrodiorite-granodiorite series of the Peyve ...
Yury N Raznitsin (6965912), Raznitsin, Yury N, Dmitriev, Dmitry A, Pavel A Kepezhinskas (6971951), Dmitry A Dmitriev (6971954), Kepezhinskas, Pavel A   +5 more
core   +1 more source

The Late Mesozoic granodiorite and polymetallic mineralization in southern Anhui Province, China: A perspective from apatite geochemistry

, 2019
The region of southern Anhui Province (SAP) is one of Late Mesozoic magmatic belts and copper-molybdenum-gold-tungsten polymetallic ore districts in China, but the relationship of polymetallic mineralization and related granodiorite remains unclear ...
Lin Qian, Yu Wang, Jian-Cheng Xie, Wei-Dong Sun   +3 more
semanticscholar   +1 more source

TIMS Techniques for Measuring Strontium Isotope Ratios in Apatite Grains and Application to Igneous Rock Petrology

Rapid Communications in Mass Spectrometry, Volume 41, Issue 1, 15 January 2027.
ABSTRACT Rationale This study evaluates the potential of Sr isotopic compositions in apatite grains from magmatic rocks as a proxy for initial 87Sr/86Sr ratios, addressing the need for alternative approaches to conventional whole‐rock analyses in isotopic studies of granitoid systems.
Carla Neto, Claudio de Morisson Valeriano, Gabriel Paravidini, Henrique Bruno, Manuela Carvalho, Rasec Almeida, Caroline Peixoto, Samuel Bersan, Mariana Carvalho, Monica Heilbron   +9 more
wiley   +1 more source

The emplacement and deformation of granitic rocks in a transpressional shear zone: the ox mountains igneous complex [PDF]

, 1989
The structural evolution of the Ox Mountains Granodiorite {478±12Ma) during and after its emplacement is described. This pluton has been emplaced within and synchronously with, a major transpressional shear zone which is expressed as a 11km wide belt of ...
McCaffrey, Kenneth J.W., McCaffrey, K.J
core  

MINERALOGICAL, PETROGRAPHIC AND CHEMICAL COMPOSITION OF THE GRANODIORITE ROCKS FROM THE KOSOVSKA RIVER LOCALITY IN WESTERN MACEDONIA

, 2019
In this paper are shown the results of the mineralogical-petrographic and chemical study of granodiorite rocks from the Kosovska River locality. The mineralogical-petrographic characteristics of samples that were taken, have been determined by use of the
Spasovski, Daniel, Spasovski, Orce
core   +1 more source

Hydrothermal alteration processes in the giant Dahutang tungsten deposit, South China: Implications from litho-geochemistry and mass balance calculation

China Geology, 2021
The giant Dahutang tungsten (W) deposit has a total reserve of more than 1.31 Mt WO3. Veinlet-disseminated scheelite and vein type wolframite mineralization are developed in this deposit, which are related to Late Mesozoic biotite granite.
Hai-Bo Zhao, Yong Zhang, Lei Liu
doaj   +1 more source

Geochemical Characteristics of Metasediment—Rich Lower Continental Crust: Insights From the Ivrea‐Verbano Zone (DIVE Drilling Project, ICDP Expedition 5071, Val d’Ossola, Italy)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract Whole‐rock geochemical data from two drill cores obtained through the ICDP (International Continental Scientific Drilling Program) funded Drilling the Ivrea‐Verbano Zone (IVZ) (DIVE) project: 5071_1_B (Ornavasso) and 5071_1_A (Megolo), provide new insights into the composition of the lower continental crust (LCC) in the IVZ. Borehole 5071_1_B (
Alexia Secrétan, Othmar Müntener, Benjamin Klein, Sarah Degen, Luca Pacchiega, Junjian Li, Mattia Pistone, Kim Lemke, György Hetényi, Jörg Hermann   +9 more
wiley   +1 more source

PETROGRAPHY, GEOCHEMISTRY AND AGE OF THE FARALLONES GRANODIORITE AND ASSOCIATED VOLCANIC ROCKS [PDF]

, 2022
La Granodiorita de Farallones se localiza en el flanco occidental de la Cordillera Occidental de Colombia, está conformada por tonalitas, granodioritas, cuarzodioritas, monzodioritas, cuarzomonzodioritas, dioritas, gabros y cuarzomonzonitas. El contenido
Rodríguez García, Gabriel, Zapata García, Gilberto   +1 more
core  

Physical, mechanical, and radiation shielding performance of granodiorite for construction applications

Scientific Reports
In this study, physical and mechanical characteristics of the granodiorite was examined. Additionally, the ability of granodiorite to shield against gamma radiation was also evaluated.
Mokhles K. Azer, Mohamed Hasabelnaby, Ahmed E. Abdel Gawad, Saif M. Abo Khashaba, Mohamed Y. Hanfi   +4 more
doaj   +1 more source