Results 51 to 60 of about 8,479 (222)

The rise and fall of a volcanic plateau: Landscape evolution at the fringes of the former Patagonian Ice Sheet, Meseta Chile Chico, central Patagonian Andes

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Understanding Earth‐surface processes along the fringes of large ice sheets is integral to deciphering cold‐region environmental variability and anticipating slope instability under climate change. We investigate the Meseta Chile Chico, a volcanic plateau in the central Patagonian Andes, located at the eastern margin of the former Patagonian ...
Carolina Franco   +8 more
wiley   +1 more source

GEOLOGY AND GEOCHEMISTRY OF SYNPLUTONIC DYKES IN THE CHELYABINSK GRANITOID MASSIF, SOUTH URALS

open access: yesГеодинамика и тектонофизика, 2017
We present the results of geological, petro‐geochemical and mineralogical studies of synplutonic intrusive formations in the Chelyabinsk granitoid massif, South Urals.
G. A. Kallistov, T. A. Osipova
doaj   +1 more source

Type intrusive series of the Far East belt of lithium-fluoric granites and its ore content

open access: yesЗаписки Горного института, 2022
The evolution and ore content of granitoid magmatism in the Far East belt of lithium-fluoric granites lying in the Russian sector of the Pacific ore belt have been studied.
Viktor I. Alekseev
doaj   +1 more source

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

open access: yesArchaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello   +5 more
wiley   +1 more source

Structural interpretation of gabbroic rocks in Ağaçören Granitoid, central Turkey: field observations and aeromagnetic data

open access: yes, 1998
Gabbroic rocks crop out commonly in different localities of the Central Anatolian Crystalline Complex and are interpreted by many researchers as the remnants of a Neotethyan ophiolitic suite now observed as roof-pendants in the granitoids of the ...
Güleç, Nilgün Türkan   +6 more
core   +1 more source

Tourmaline chemistry and investigation of its formation conditions in the northern intrusive body of the Nain ophiolite complex in the northeast of Isfahan Province [PDF]

open access: yesپترولوژی
IntroductionGeographically, the granitoid intrusion under investigation is located in Ardestan, in the northeastern part of Isfahan Province and to the north of the Nain ophiolitic complex, between longitudes 52°50′ to 53°03′ E and latitudes 33°09′N to ...
Mohammad Ali Mackizadeh   +2 more
doaj   +1 more source

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

open access: yesGeostandards 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   +38 more
wiley   +1 more source

Azizabad-Hazarkhani granitoid, NE of Songhor: Evidence of a subduction event in the N- Sanandaj-Sirjan continental arc [PDF]

open access: yesعلوم زمین خوارزمی
The study area is located in the SaSZ, NE of Songhor city, Kermanshah Province. Based on field observations and mineralogical data, the Azizabad-Hazarkhani I-type calc-alkaline granitoid consists of granites, monzonites and diorites with small volumes of
Ashraf Torkian, , Mohsen Mohammadi
doaj  

Potential of granitoid rock powder to enhance soil fertility and crop nutrition

open access: yesCogent Food & Agriculture
The use of granitoid rock as a soil remineralizer has gained attention for its potential to enhance soil fertility and improve crop nutrition in agriculture.
Sidiney Moreira Fernandes   +8 more
doaj   +1 more source

U-Pb dating of arc to post-collisional magmatic events in northwestern Anatolia: The Eocene Granitoids in NW Anatolia revisited

open access: yesJournal of Asian Earth Sciences: X, 2023
Northwestern Anatolia contains voluminous Cenozoic magmatic rocks which were emplaced during syn- to-post collisional stages of long-term crustal accretion and extensional stages since the late Paleocene.
E.Yaçın Ersoy   +3 more
doaj   +1 more source

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