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The study on the adsorption characteristics of anthracite under different temperature and pressure conditions. [PDF]
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Introduction to Geodynamics for High- and Ultrahigh-Pressure Metamorphism
Island Arc, 1998Since the first workshop on ultrahigh‐pressure (UHP) metamorphism at Stanford in 1994 and the special issue of The Island Arc `Ultrahigh‐Pressure Metamorphism and Tectonics' published in December 1995, many symposia and special sessions specifically with regard to the UHP metamorphic terrane have been held.
J G Liou
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An Introduction to Ultrahigh-Pressure Metamorphism
Island Arc, 1994Abstract Ultrahigh‐pressure (UHP) metamorphism refers to mineralogical and structural readjustment of supracrustal protoliths and associated mafic‐ultramafic rocks at mantle pressures greater than ∼ 25 kbar (80‐90 km). Typical products include metapelite, quartzite, marble, granulite, eclogite, paragneiss and orthogneiss; minor mafic and ...
W G Ernst, J G Liou, Ruyuan Zhang
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Ultrahigh-Pressure Metamorphism and Tectonics
Island Arc, 1995Abstract Recognition of several ultrahigh‐pressure (UHP) metamorphic terranes in continental collision belts has revolutionized the concept of geodynamic processes. In order to facilitate better communication and focus among active investigators, the Task Group III‐6 of the International Lithosphere Program‘Ultrahigh‐Pressure Metamorphism and ...
W G Ernst, J G Liou, S Banno
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Microdiamonds — Frontier of Ultrahigh-Pressure Metamorphism: A Review
Gondwana Research, 2012Abstract This is a comprehensive review paper devoted to microdiamonds from ultrahigh-pressure metamorphic (UHPM) terranes incorporated in orogenic belts formed at convergent plate boundaries in Paleozoic–Mesozoic–Alpine time. When in 1980 the first small diamonds were discovered within “amphibolite–granulate facies” metamorphic rocks, it came as a ...
Larissa Dobrzhinetskaya
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Ultrahigh-Pressure Metamorphism: Tracing Continental Crust Into the Mantle
Earth and Planetary Science Letters, 2003Abstract More and more evidence is being discovered in Phanerozoic collision belts of the burial of crustal rocks to previously unsuspected (and ever increasing) depths, presently on the order of 150–200 km, and of exhumation from such depths. This extends by almost one order of magnitude the depth classically ascribed to the metamorphic cycling of ...
Christian Chopin
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Early Proterozoic Ultrahigh Pressure Metamorphism: Evidence From Microdiamonds
Science, 2004Microdiamonds from the Akluilâk minette dykes (Nunavut, Canada) are similar to diamonds formed in subducted metamorphic rocks. High concentrations of unaggregated nitrogen and positive δ 15 N suggest that the microdiamonds formed within rocks subducted to ultrahigh pressures before being sampled by the minette ...
Pierre Cartigny +2 more
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On Continent-Continent Point-Collision and Ultrahigh-Pressure Metamorphism
Acta Geologica Sinica, 2002Abstract Up to now it is known that almost all ultrahigh‐pressure (UHP) metamorphism of non‐impact origin occurred in continent‐continent collisional orogenic belt, as has been evidenced by many outcrops in the eastern hemisphere. UHP metamorphic rocks are represented by coesite‐ and diamond‐bearing eclogites and eclogite facies metamorphic rocks ...
Xiaochun Liu, Shuwen Dong, Xue Huaimin
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Ultrahigh Pressure Metamorphism
, 1995 Recent discoveries of diamond and coesite in the upper crustal rocks of the Earth have drastically changed scientists' ideas concerning the limits of crustal metamorphism. This book provides detailed accounts of the discoveries of diamond and coesite in crustal rocks and provides insights regarding their formation at very high pressures.
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Journal of Metamorphic Geology
ABSTRACT Evidence of metamorphism at ultrahigh‐pressure (UHP) conditions is documented by the presence of coesite, diamond and/or majoritic garnet. However, the growth of UHP‐stable phases such as majoritic garnet is often volumetrically low, and overprinting during exhumation can obscure evidence of UHP growth, making it difficult to
Andrew R.C. Kylander-Clark +2 more
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ABSTRACT Evidence of metamorphism at ultrahigh‐pressure (UHP) conditions is documented by the presence of coesite, diamond and/or majoritic garnet. However, the growth of UHP‐stable phases such as majoritic garnet is often volumetrically low, and overprinting during exhumation can obscure evidence of UHP growth, making it difficult to
Andrew R.C. Kylander-Clark +2 more
exaly +2 more sources