Results 161 to 170 of about 51,740 (216)

Rapid heating (<2 Ma) to ultrahigh-temperature metamorphism via asthenospheric upwelling. [PDF]

Sci Adv
Zhang G, Wu C, Wang Y, Zhang L, Webb AAG.   +4 more
europepmc   +1 more source

Potential geological risks from mud diatremes in the orogen regime of Southwestern Taiwan. [PDF]

Sci Rep
Wu HY, Liu HC, Kao LC, Ching KE, Chen CC, You CF, Yi TC, Chen YH, Wu BL, Chen CJ.   +9 more
europepmc   +1 more source

Uplift of the Tibetan Plateau driven by mantle delamination from the overriding plate. [PDF]

Nat Geosci
Xie Y, Balázs A, Gerya T, Xiong X.
europepmc   +1 more source

Metallogenesis of the Tibetan collisional orogen: A review and introduction to the special issue

Ore Geology Reviews, 2009
Mineral deposits associated with continental collision are abundant in many orogenic systems. However, the metallogenesis of collisional orogens is often poorly understood, due to the lack of systematic studies on the genetic links between collisional ...
Nigel J. Cook, Zengqian Hou
exaly   +2 more sources

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Hydrothermal ore deposits in collisional orogens

Science Bulletin, 2019
Hydrothermal ore deposits at convergent plate boundaries represent extraordinary metal enrichment in the continental crust. They are generally associated with felsic magmatism in extensional settings at high thermal gradients. Although their formation is common during accretionary orogeny, more and more ore deposits have been discovered recently in the
Yanjing Chen, Pei Ni, Zheng Yongfei
exaly   +3 more sources

Post-collisional magmatism in the central East African Orogen: The Maevarano Suite of north Madagascar [PDF]

Lithos, 2010
Late tectonic, post-collisional granite suites are a feature of many parts of the Late Neoproterozoic to Cambrian East African Orogen (EAO), where they are generally attributed to late extensional collapse of the orogen, accompanied by high heat flow and
Wilfried Bauer, Bert De Waele, R M Key
exaly   +2 more sources

Delamination in collisional orogens

Geology, 1990
During continental collision, the weight of the downgoing slab may lead to extensional shearing in the descending plate, permitting separation of the downdip, dense oceanic lithosphere from the adjacent lighter continental lithospher. Separation may occur by means of a lithosphere-penetrating normal-sense shear zone, by means of pure shear necking of ...
Paul E. Sacks, Donald T. Secor, Jr.
openaire   +1 more source

A non‐collisional, accretionary Sveconorwegian orogen

Terra Nova, 2012
Terra Nova, 25, 30–37, 2013AbstractThe late Mesoproterozoic Sveconorwegian orogen in southwest Baltica is traditionally interpreted as the eastward continuation of the Grenville orogen in Canada, resulting from collision with Amazonia, forming a central part in the assembly of the Rodinia supercontinent.
Slagstad, Trond, Roberts, Nick M.W., Marker, Mogens, Rohr, Torkil S., Schiellerup, Henrik   +4 more
openaire   +2 more sources

Delamination in collisional orogens

2012
Modes of mantle delamination in collision zones are discussed in the light of 2D numerical modeling. Freely evolving thermomechanical models take into account phase changes in the mantle and melting in the crust. Distinct modes are identified, in which orogens undergo mantle delamination concurrently or after collision.
Ueda, K., Gerya, Taras, Burg, Jean-Pierre   +2 more
openaire   +1 more source

Petrogenesis of leucogranites in collisional orogens

Geological Society, London, Special Publications, 2019
Abstract Leucogranites are a characteristic feature of collisional orogens. Their generation is intimately related to crustal thickening and the active deformation and metamorphism of metapelites. Data from Proterozoic to present day orogenic belts show that collisional leucogranites (CLGs) are peraluminous, with muscovite ...
openaire   +1 more source