Results 11 to 20 of about 384 (188)

Origin of the Miocene Adakitic Rocks and Implication for Tectonic Transition in the Himalayan Orogen: Constraints from Kuday Granitoid Porphyry in Southern Tibet

open access: yesLithosphere, 2022
Postcollisional adakitic magmatism in the Himalayan Orogen provides a probe into the evolution of the collisional orogen. During the Miocene, the Himalayan Orogen underwent a tectonic transition, which was characterized by a series of tectonic events ...
Yunsong Fan   +6 more
doaj   +1 more source

PALEOZOIC GRANITOID MAGMATISM OF THE URALS: THE REFLECTION OF THE STAGES OF THE GEODYNAMIC AND GEOCHEMICAL EVOLUTION OF A COLLISIONAL OROGEN

open access: yesГеодинамика и тектонофизика, 2021
The Ural mobile belt is an intracontinental epioceanic orogen that has already gone through all stages of the geodynamic development. Igneous rocks formed during each stage are important indicators for understanding the evolution of this belt and ...
V. V. Kholodnov   +9 more
doaj   +1 more source

EARLY PRECAMBRIAN CRUSTAL EVOLUTION OF THE BELOMORIAN AND TRANS-NORTH CHINA OROGENS AND SUPERCONTINENTS RECONSTRUCTION

open access: yesГеодинамика и тектонофизика, 2017
Comparative analysis of the crustal evolution of the Early Precambrian Belomorian and Trans-North China orogens (Fig. 1) has shown [Slabunov et al., 2015] that: Both belts were formed by the superposition of two Precambrian orogenies.
A. I. Slabunov   +4 more
doaj   +1 more source

The fate of calcareous pelites in collisional orogens [PDF]

open access: yesJournal of Metamorphic Geology, 2020
AbstractAlthough calcareous pelites are important constituents of sediments involved in orogenic processes, their prograde metamorphism is significantly less studied than that of pure pelites with negligible amounts of modal calcite. This paper presents mineral equilibria modelling in the system MnO–Na2O–K2O–CaO–FeO–MgO–Al2O3–SiO2–TiO2–H2O–CO2, with ...
Groppo C.[1   +5 more
openaire   +3 more sources

COMPARISON OF DEEP CRUSTAL COMPOSITIONS BETWEEN THE QINLING-DABIE OROGEN (CHINA) AND CENTRAL ASIAN OROGENIC BELT AND IMPLICATIONS FOR UNDERSTANDING ACCRETIONARY AND COLLISIONAL OROGENIC PROCESSES

open access: yesГеодинамика и тектонофизика, 2017
It is generally considered that there are different continental compositions between a subductional– collisional and an accretionary orogen, however, what are the differences and how to identify them has not been well understood.
X. X. Wang   +6 more
doaj   +1 more source

Rutile in Amphibolite Facies Metamorphic Rocks: A Rare Example from the East Qinling Orogen, China

open access: yesApplied Sciences, 2021
Rutile is an important ore mineral to meet the increasing demand of critical metal Ti in various sectors. Here we report a rare example of rutile deposits hosted within the Baishugang–Wujianfang amphibolite-facies metamorphic rocks in the East Qinling ...
Changming Wang   +7 more
doaj   +1 more source

Hydrous Carbonatitic Liquids Drive CO2 Recycling From Subducted Marls and Limestones

open access: yesGeophysical Monograph Series, Page 209-221., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Erwin Schettino, Stefano Poli
wiley  

+1 more source

Proterozoic taphrogenic history recorded in the pre-collisional sedimentary basins of the Araçuaí Orogen, Southern Espinhaço Range, Southeastern Brazil [PDF]

open access: yesBrazilian Journal of Geology
The Proterozoic pre-collisional basins of the Araçuaí orogen consist of a succession of superimposed basins that overlie the eastern margin of the São Francisco Craton.
Rogerio Rodrigues da Silva
doaj   +1 more source

Structural and metamorphic analysis of the Sucuru-Paraba region: implications for evolution of the Alto Moxotó Terrane, Borborema Province [PDF]

open access: yesGeologia USP. Série Científica, 2012
Inserted on the Alto Moxot Terrane of the Borborema Province, the Sucuru region (Paraba state, Brazil) includes two dominantly pre-Ediacaran tectono-stratigraphic domains, bounded by an expressive thrust shear zone (Carmo SZ).
Lauro Cézar Montefalco de Lira Santos   +3 more
doaj   +1 more source

THE VOLGA-DON COLLISIONAL OROGEN IN THE EAST EUROPEAN CRATON AS THE PALEOPROTEROZOIC ANALOGUE OF THE HIMALAYAN-TIBETAN OROGEN

open access: yesГеодинамика и тектонофизика, 2023
The ca 2.0 Ga Volgo-Don fold-and-thrust belt, about 500 km in width and at least 600 km in length, covering an area of about 300000 square kilometers intervenes between the Archean Sarmatian and Volgo-Uralian proto-cratonic blocks of the East European ...
A. A. Shchipansky, T. N. Kheraskova
doaj   +1 more source

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