Results 11 to 20 of about 7,825 (224)

Granitoid suites

open access: yesGeological Journal, 1991
AbstractThe concept of suites within granitoid batholiths must be treated with extreme caution, especially when petrogenic interpretation of identified suites is involved (e.g. infrastructural control of granitoid suite composition). Without stated, necessary, and sufficient operational definitions of the parameters (and their weighting) used in suite ...
Whitten, E. H.T., E. H. T. Whitten
openaire   +2 more sources

Environmental Effects of Volcanic Volatile Fluxes From Subaerial Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 103-116., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Tamsin A. Mather, Anja Schmidt
wiley  

+1 more source

Petrology, geochemistry and origin of Gapdan Granites (South east of Zahadan) [PDF]

open access: yesپترولوژی, 2018
The Gapdan granitoid is located in the southwestern margin of Zahedan granitoid and in the Sistan suture zone. The granitoid under study is composed of granite, monzogranite, granodiorite, pegmatite and diorite.
Habib Biabangard, Shararh Noori
doaj   +1 more source

Geochronology and geochemistry of the Late Jurassic Wujiaping Sn deposit, Dayishan ore field, South China: Implications to the petrogenesis and Sn mineralization

open access: yesSolid Earth Sciences, 2022
The Wujiaping Sn deposit is located at the northern Dayishan ore field, South China, whose ore veins are mainly hosted in the Dayishan pluton. LA–ICP–MS zircon U–Pb dating for the medium-fine grained- and medium-coarse grained-biotite monzogranite of ...
Youyue Lu   +9 more
doaj   +1 more source

Determination of physicochemical conditions and role of fluids in evolution of Geysour granitoid (eastern Gonabad), using biotite mineral chemistry

open access: yesJournal of Economic Geology, 2021
Introduction The chemical composition of biotite in mineralization associated with granitoids and copper porphyry deposits is sensitive to several chemical and physical factors.
Ahmad Ahmadi Khalaji   +4 more
doaj   +1 more source

Geochemistry of granitoids

open access: yes, 2007
This geochemical compilation includes analyses of both granitoid and sedimentary rocks that were compiled from the thesis of Johns (2002) plus a published paper of Thériault et al. (2001) and archived unpublished GSC digital files of R.J. Thériault. Details of geochemical methods for those samples are contained in the data sources.
J B Whalen, N Wodicka
openaire   +2 more sources

Saheb Granitoid Batholith, North of Kurdistan: An Evidence of Cretaceous- Paleocene Magmatism in the Sanandaj-Sirjan Zone

open access: yesJournal of Economic Geology, 2020
Introduction The Iranian plateau is part of the Alpine-Himalayan orogenic belt, which consists of several continental fragments separated from each other by major boundary faults and/or ophiolitic suture zones (Gansser, 1981).
Farid Abdollahi   +4 more
doaj   +1 more source

New monazite U-Pb age constraints on the evolution of the Paleoproterozoic Vaasa granitoid batholith, western Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2016
The Vaasa batholith, western Finland, is a large, peraluminous granitoid pluton that crystallized at 1.88–1.87 Ga during the culmination of the Svecofennian orogeny.
A.K. Kotilainen   +4 more
doaj   +1 more source

Study of Granitoid Distribution at Toboali Waters, Bangka Belitung Province: Seismic data interpretation approach [PDF]

open access: yes, 2020
Bangka Island is one of the islands in Indonesia which is traversed by Southeast Asia granitoid belt. This belt stretches from Burma (Myanmar) to Bangka Belitung.
Syafri, Ildrem   +3 more
core   +1 more source

Thermobarometry of Ca-amphibole in a Typical Low–temperature I-type Granite from Kashmar, Iran [PDF]

open access: yesFanāvarī-i āmūzish, 2007
The Kashmar granitoid (42.5 Ma) occurs in NE Central Iran Plate (CIP). It mainly includes felsic metaluminous (ASI ≤ 1) I–type granite and granodiorite plutons. Microprobe analyses show that the Kashmar amphiboles are low in Ti and (Na+K)A contents (all <
A. Soltani
doaj   +3 more sources

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