Results 11 to 20 of about 387 (119)

Petrology of Yaluninogorsk granitoid massive (Alapaevsk-Sukhoi Log porphyry copper zone, Middle Urals)

open access: yesЛитосфера, 2018
Yaluninogorsk quartz diorite-trondhjemite massif is situated in Alapaevsk-Sukhoy Log zone of Eastern-Ural High potentially productive for Cu (±Mo) porphyry type of mineralization. The massif is a magma chamber 3 × 2 km under central type volcano.
Sergei V. Pribavkin   +2 more
doaj   +2 more sources

Late Neoarchean magmatism and crustal growth in northern Liaoning: evidence from zircon U-Pb geochronology and petro-geochemistry of the Qingyuan trondhjemites

open access: yes, 2023
Data accompanying " Late Neoarchean magmatism and crustal growth in northern Liaoning: evidence from zircon U-Pb geochronology and petro-geochemistry of the Qingyuan trondhjemites" by LL Yuan, J Liu, XH Zhang, ZL Yang, H Zhang, HB Li ...
Yuan, Lingling   +1 more
core   +2 more sources

PETROGENESIS OF THE META-TRONDHJEMITES FROM CAPE HINODE, EAST ANTARCTICA [PDF]

open access: yes, 1997
P(論文)Meta-trondhjemites (ca. 1000 Ma) from Cape Hinode, Lutzow-Holm Complex (LHC), East Antarctica are characterized by relatively high Al (Al_2O_3>15% at 70% SiO_2) and Sr, and low Y and Yb contents, which are chemically similar to Archaean ...
イケダ, ヤスオ   +5 more
core   +1 more source

Trondhjemite leucosomes generated by partial melting of a hornblende-gabbro (Alvand plutonic complex, Hamedan, NW Iran)

open access: yes, 2021
This work describes the petrogenesis of in situ and in-source trondhjemite leucosomes generated by low-degree partial melting of the Jurassic Cheshmeh-Ghasaban hornblende-gabbros in the northern Alvand batholith (Hamedan, NW Iran). These leucosomes occur
White J. C.   +7 more
core   +1 more source

Sm-Nd AND Rb-Sr ISOCHRON AGES FOR META-TRONDHJEMITES FROM CAPE HINODE, EAST ANTARCTICA [PDF]

open access: yes, 1995
P(論文)A Rb-Sr and Sm-Nd isotope study of meta-trondhjemites and a pelitic gneiss from Cape Hinode, Lutzow-Holm Complex (LHC), East Antarctica has been performed.
カガミ, ヒロオ   +5 more
core   +1 more source

Granite geochemistry is not diagnostic of the role of water in the source

open access: yes, 2021
The diverse fluid regimes during melting of the metasedimentary crust have been often discriminated on the basis of the composition of anatectic granitoids, with granites indicating fluid-absent melting conditions and trondhjemitic compositions ...
Bartoli O., Omar Bartoli
core   +1 more source

Petrogenesis of the tonalitic rocks from the Soer Rondane Mountains, East Antarctica [PDF]

open access: yes, 1998
P(論文)Tonalitic rocks (ca. 1000 Ma) from the Sor Rondane Mountains, East Antarctica, are characterized by relatively high Na_2O/K_2O (0.6-24), K/Rb (76-1638), Sr/Y (5-60), and (La/Yb) N (1-29), and relatively low CaO/ Na_2O (0.4-4) and low initial ^Sr/^Sr
Shiraishi, Kazuyuki, Ikeda, Yasuo
core   +1 more source

Tectonic evolution of the southern margin of the Amazonian craton in the late Mesoproterozoic based on field relationships and zircon U-Pb geochronology

open access: yesAnais da Academia Brasileira de Ciências, 2014
New U-Pb zircon geochronological data integrated with field relationships and an airborne geophysical survey suggest that the Nova Brasilândia and Aguapeí belts are part of the same monocyclic, metaigneous and metasedimentary belt formed in the late ...
GILMAR J. RIZZOTTO   +3 more
doaj   +1 more source

Geochronology and geochemistry of the granitoids in the Diancangshan-Ailaoshan fold belt: Implications on the Neoproterozoic subduction and crustal melting along the southwestern Yangtze Block, South China

open access: yes, 2022
The Neoproterozoic magmatic and tectonic history of the South China Craton (SCC) is critical for the reconstruction of Rodinia break-up and subsequent Gondwana assembly.
Xia, Xiao-ping   +6 more
core   +1 more source

The timeline of two-stage accretionary processes in eastern Central Asian Orogenic Belt: insights from episodic Paleozoic intrusions in central Inner Mongolia, North China

open access: yes, 2020
Data accompanying the manuscript " Late Neoarchean magmatism and crustal growth in northern Liaoning: evidence from zircon U-Pb geochronology and petro-geochemistry of the Qingyuan trondhjemites" by LL Yuan, XH Zhang, ZL Yang.THIS DATASET IS ...
Yuan, L (via Mendeley Data)   +1 more
core   +1 more source

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