High- and Ultrahigh-Pressure Metamorphism in the North Qaidam and South Altyn Terranes, Western China [PDF]
The North Qaidam and South Altyn terranes extend approximately 1000 km across the northern Tibetan Plateau, and five localities preserve evidence of Early Paleozoic high-pressure (HP) or ultrahigh-pressure (UHP) metamorphism, including the presence of ...
Bird, D. K. +3 more
core +2 more sources
Dehydration reactions within subducted oceanic crust are important for fluid‐mediated element transfer within the subducting plate and potentially to the mantle wedge.
D. Z. Shulaker +3 more
doaj +1 more source
El contacto entre las zonas de Ossa Morena y Sudportuguesa. Características y significado de la banda metamórfica de Aracena, en su sector central entre Aroche y Aracena (Huelva) [PDF]
El contacto entre las zonas de Ossa Morena y Sudportuguesa está subrayado por la banda metamórfica de Aracena. Las características principales de esta región del macizo Ibérico pueden considerarse desde distintos puntos de vista: litológico, estructural,
Castro, A. +5 more
core +1 more source
Uncertainties and shortcomings of ground surface temperature histories derived from inversion of temperature logs [PDF]
Analysing borehole temperature data in terms of ground surface history can add useful information to reconstructions of past climates. Therefore, a rigorous assessment of uncertainties and error sources is a necessary prerequisite for the meaningful ...
Hartmann, Andreas, Rath, Volker
core +1 more source
METABASITES OF MIDDLE TRANSANGARIA, YENISEI RIDGE: E-MORB RELICTS OF NEOPROTEROZOIC LITHOSPHERE
This work presents first results on40Ar/39Ar dating by stepwise heating method, as well as geochemistry of rare trace elements by ICP-MS and isotopic (Nd, Sr) composition of metabasites from tributaries basins of Velmo and Bolshoi Pit rivers (Transangaria, Yenisei ridge). The studied rocks form small areas of concordant boudined plate-shape amphibolite
Vasilii V. Vrublevskii +3 more
openaire +3 more sources
Neoproterozoic crustal evolution in Southern Chad: Pan-African ocean basin closing, arc accretion and late- to post-orogenic granitic intrusion. [PDF]
International audienceIn the Lake Léré region, southern Chad, Neoproterozoic terrains are distributed in four lithostructural groups that reveal the geotectonic evolution of a part of the Pan-African orogenic domain.
Doumnang, J.C. +4 more
core +3 more sources
Geochemistry and petrogenesis of metabasites from the KTB ultradeep borehole, Germany
The metabasites from the KTB pilot and main drill holes can be divided into two major associations. The first is the metagabbro-amphibolite suite which is composed principally of metagabbros, basalts, and basaltic andesites with tholeiitic P-MORB affinities.
Harms, U. +3 more
openaire +4 more sources
Non-coaxial deformation of foreland basement involved in a fold-and-thrust belt: a strain partitioning approach to the Eastern Variscan orogen. [PDF]
Mareček L +5 more
europepmc +1 more source
The Murchison Greenstone Belt, South Africa: Accreted slivers with contrasting metamorphic conditions [PDF]
International audienceThis paper presents new petrological and geochronological data for the ∼3.09-2.92 Ga Murchison Greenstone Belt (MGB), located in South Africa's Kaapvaal Craton, and discusses their geotectonic implications.
Block, Sylvain +5 more
core +3 more sources
Tectonics and Petrograpby of the East Ongul Islana, Lutzow-Holm Bukt, Antarctica [PDF]
The East Ongul Island on the coast of the Lutzow-Holm Bukt, East Antarctica, was investigated from the tectonical and petrographical points of view.
Koshiro KIZAKI +1 more
core +1 more source

