Results 71 to 80 of about 811 (185)

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

Quantifying Multi‐Source Sediment Supply in a Tropical Foreland Basin (Oligocene‐Miocene Nyalau Formation, Borneo)

open access: yesBasin Research, Volume 38, Issue 2, March/April 2026.
Detrital zircon unmixing identifies three sediment sources for the Oligocene–Miocene Nyalau Formation, including a previously unrecognised syn‐depositional component characterised by Oligocene–Miocene volcanic zircons and Neoproterozoic populations absent from established sources.
Ekundayo J. Adepehin   +3 more
wiley   +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

Geology and tectonic setting of the Fornovolasco area, Alpi Apuane (Tuscany, Italy)

open access: yesJournal of Maps, 2018
The study area is located in the Alpi Apuane (Tuscany, Italy), and extends between N 44°0′49.883″–E 10°20′23.467″ (SW corner) and N 44°2′53.403″–E 10°23′19.175″ (NE corner).
Diego Pieruccioni   +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

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

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

Co-Cu-Au deposits in metasedimentary rocks-A preliminary report [PDF]

open access: yesOpen-File Report, 2010
J.F. Slack   +6 more
openaire   +1 more source

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