Results 31 to 40 of about 51,740 (216)

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

Late Paleoproterozoic magmatism in North Hengshan: Final collapse of the Trans-North China Orogen

open access: yes, 2022
Post-collisional magmatism carries important information for understanding when and how an ancient continental collisional orogen unrooted and collapsed.
Su, L   +16 more
core   +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

Fast exhumation of Earth’s earliest ultrahigh-pressure rocks in the West Gondwana orogen, Mali [PDF]

open access: yes, 2023
Did exhumation of ultrahigh-pressure (UHP) rocks proceed at comparable rates in the Neoproterozoic and in modern collisional orogens? We address this question with a multimineral geochronological study of UHP rocks from the Gourma fold-and-thrust belt in
Daniela Rubatto   +11 more
core   +1 more source

Petrogenesis of Triassic Granitoids in the Guide Area, Western Qinling: Implications for the Scissors-Like Subduction to Collision Orogenic Processes [PDF]

open access: yesLithosphere
Indosinian granitoids are widespread in the western Qinling Orogen, offering valuable insights into the geodynamic evolution of the Qinling Orogenic Belt and crust-mantle interactions.
Yude Lei   +8 more
doaj   +1 more source

The collision model of the Crimean orogen - the experience of the finite element method

open access: yesГеофизический журнал, 2013
Finite elements method is attracted for numerical modeling of crust deformation of Crimea Mountains within hypothesis of its collisional formation. Elastic and elastoplastic (Coulomb) ap-proaches are used.
V. V. Gonchar
doaj   +1 more source

Continental Collision Structures and Post-Orogenic Geological History of the Kangerlussuaq Area in the Southern Part of the Nagssugtoqidian Orogen, Central West Greenland

open access: yesGeosciences, 2014
Deep-seated continental collision sutures, formed at a depth of more than 20 km, are exposed near Kangerlussuaq, close to the Greenland ice cap, on the southern margin of the Nagssugtoqidian orogen in Central West Greenland, thus offering a rare ...
Jon Engström, Knud Erik S. Klint
doaj   +1 more source

Ambient tremors in a collisional orogenic belt

open access: yesGeophysical Research Letters, 2014
AbstractDeep‐seated tectonic tremors have been regarded as an observation tied to interconnected fluids at depth, which have been well documented in worldwide subduction zones and transform faults but not in a collisional mountain belt. In this study we explore the general features of collisional tremors in Taiwan and discuss the possible generation ...
Lindsay Yuling Chuang   +4 more
openaire   +1 more source

Spatiotemporal distribution and geodynamic mechanism of the nearly NS-trending rifts in the Tibetan Plateau

open access: yesDizhi lixue xuebao, 2021
A set of nearly NS-trending rifts developed in the Himalayan orogen and southern Tibet, which are the large-scale extensional structures formed under the continuous compression of the Indo-Eurasia continent, playing a significant role in revealing the ...
BIAN Shuang   +6 more
doaj   +1 more source

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