Results 71 to 80 of about 842 (183)

CO-EVOLUTION OF PROTEROZOIC CRATONIC FRAGMENTS IN WESTERN AND NORTHERN MONGOLIA

open access: yesГеодинамика и тектонофизика, 2017
CAOB occupies a vast area that extends from the Urals to the Far East Asia and from the Siberian craton to the North China and Tarim cratons (Fig. 1, A).
Uyanga Bold   +2 more
doaj   +1 more source

Dating of Precambrian Metasedimentary Rocks and Timing of their Metamorphism in the Soursat Metamorphic Complex (NW IRAN): Using LA–ICP-MS, U–Pb Dating of Zircon and Monazite [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2010
Soursat Metamorphic Complex (SMC) in west of Takab city is one of the polyphase metamorphic terrenes in northern Sanandaj-Sirjan metamorphic belt of Iran. The SMC composed mainly of metasedimentary rocks associated with granitic intrusions.
M. Jamshidi Badr
doaj  

Chlorine isotope constraints on fluid‐rock interactions during subduction and exhumation of the Zermatt‐Saas ophiolite

open access: yesGeochemistry, Geophysics, Geosystems, 2013
Chlorine isotope compositions of high‐pressure (∼2.3 GPa) serpentinite, rodingite, and hydrothermally altered oceanic crust (AOC) differ significantly from high‐ and ultrahigh‐pressure (> 3.2 GPa) metasedimentary rocks in the Aosta region, Italy ...
J. Selverstone, Z. D. Sharp
doaj   +1 more source

PROVENANCE AREA OF PRECAMBRIAN QUARTZITE-SCHIST SEQUENCES OF THE KOKCHETAV MASSIF (NORTH KAZAKHSTAN)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
The results of a study of quartzite-schist sequences of the Prevendian basement of the Central and Western parts of the Kokchetav massif in the Northern Kazakhstan and ore placer deposits, confined to them, are provided.
N. A. Kanygina   +3 more
doaj   +1 more source

Structural Analysis: Folds Classification of metasedimentary rock in the Peninsular Malaysia

open access: yesIOP Conference Series: Earth and Environmental Science, 2017
Understanding shear zone characteristics of deformation are a crucial part in the oil and gas industry as it might increase the knowledge of the fracture characteristics and lead to the prediction of the location of fracture zones or fracture swarms. This zone might give high influence on reservoir performance.
openaire   +1 more source

Mineralogy, geochemistry and conditions of formation Permian-Triassic intraplate granitoids of Sinyushenskiy Massif (Gorny Altai)

open access: yesЛитосфера, 2016
The data on geological settings, ages, special features of mineralogy and composition of Sinyushensky Massif granitoids the in north-west part of the Gorny Altay region.
N. N. Kruk   +3 more
doaj   +2 more sources

Fluid-induced alteration of metasedimentary rocks in the Scottish Highlands

open access: yes, 2017
Fluids, mainly H2O and CO2, are released from H- and C-bearing phases during prograde metamorphism. Because of the buoyancy of these fluids, they rise within the crust towards the surface of the Earth. Metamorphic fluids take advantage of permeable horizons, shear zones, fold hinges, fractures, and are channelled into high-flux zones.
openaire   +1 more source

Petrogenesis and Provenance of the Triassic Metasedimentary Succession in the Sakar Unit, Bulgaria: Constraints from Petrology, Geochemistry, and U-Pb Detrital Geochronology

open access: yesGeosciences
This study investigates the metasedimentary sequences of terrigenous–carbonate Sakar-type Triassic (TCSTT) and Sakar-type Triassic (STT) in the Sakar Unit, southeastern Bulgaria.
Tzvetomila Filipova Vladinova   +1 more
doaj   +1 more source

Petrogenesis of ultramafic and mafic rock series from the North Pyrenean Castillon massif (Ariège, France): evidence of magma–crust interactions in the Ordovician?

open access: yesFrontiers in Earth Science
The Castillon massif, in the northern Pyrenees, features a complex of decimetric to metric ultramafic and mafic layers emplaced within metasedimentary series (from the bottom to the top: garnet, sillimanite, and kyanite-bearing gneisses and sillimanite +
Mohammad A. Kilzi   +5 more
doaj   +1 more source

??Sr/??Sr ratios and ages of the Ogcheon metasedimentary rocks

open access: yesJournal of the Geological Society of Korea, 1998
K.-H. Park, C.-S. Cheong
openaire   +1 more source

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