Results 61 to 70 of about 9,253 (215)

A Reference Section Through Fast‐Spread Lower Oceanic Crust, Wadi Gideah, Samail Ophiolite (Sultanate of Oman): Insights From Crystallographic Preferred Orientations [PDF]

, 2021
Dominik Mock, Benoı̂t Ildefonse, Tim Müller, Jürgen Koepke   +3 more
openalex   +1 more source

Fore-arc ophiolite.

Journal of Geography (Chigaku Zasshi), 1989
Recent results of dredging and drilling of inner trench slopes have revealed that the abundant ophiolitic rocks (fore-arc ophiolite) crop out in the Izu-Ogasawara, Mariana, Yap, Tonga, and Middle America regions. These are commonly composed of serpentinized peridotite, gabbro, and volcanics of basic to intermediate composition.The fore-arc ophiolite of
Hirokazu MAEKAWA, Masaya SHOZUI, Teruaki ISHII   +2 more
openaire   +2 more sources

Origin of plagiogranites in the mawat ophiolite complex,kurdistan region, NE Iraq [PDF]

Kirkuk Journal of Science, 2007
The igneous mass in Mawat Ophiolite Complex (MOC) is built up by various basic and ultrabasic intrusions that are associated with minor acidic, intermediate and basic intrusion.
doaj   +1 more source

Gas Migration Episodes Observed During Peridotite Alteration in the Samail Ophiolite, Oman [PDF]

, 2022
John M. Aiken, Robert A Sohn, François Renard, Juerg Matter, P. B. Kelemen, Bjørn Jamtveit   +5 more
openalex   +1 more source

Review for "Geochemical and geochronological study of rodingites from the northeast India ophiolites: Petrogenetic significance and timing of rodingitization"

, 2021

openalex   +1 more source

Composition and Mineralogical Features of Ultramafic Rocks of Eastern Part of Southern Kraka Massif (South Urals)

Georesursy
The paper presents new data on the structure and composition of ultramafic rocks in the eastern part of the South Kraka massif. It is shown that the studied area is composed predominantly of spinel peridotites, among which the main role belongs to ...
D. E. Saveliev, A. I. Biembetov, T. D. Shabutdinov, A. A. Samigullin, R. A. Gataullin   +4 more
doaj   +1 more source

Morphological, textural and structural features of chromitite deposits of Main ore field of Kempirsay massif (South Urals, Kazakhstan)

Georesursy
In the paper data of morphology, textural and structural features of chromitites from deposits of southeast part of Kempirsay massif (South Urals, Kazakhstan) are summarized. It is showed that formation of unique chromium deposits is closely related with
D. E. Saveliev, D. K. Makatov, V. S. Portnov, R. A. Gataullin   +3 more
doaj   +1 more source

Chemical and Mineralogical Characteristics of the Microscopic-sized Epidotes in the Metamorphic Basement Rocks within the Late Cretaceous Hatip Ophiolitic Melange in Konya Central Southern Turkey

Hittite Journal of Science and Engineering, 2019
A metamorphism in green-schist facies conditions. The epidote crystals is subhedral to eu- hedral, with high Al2O3 26-30 % and low Fe2O3 5–8% contents.
Kerim Kocak, Raziye Merve Kaya
doaj   +1 more source

Ophiolites of Japan.

Journal of Geography (Chigaku Zasshi), 1989
The Japanese ophiolites are divided into nappe type and melange type by their occurrences. The nappe type formed in a short period (a few 10Ma), and emplaced shortly after its igneous formation keeping its original igneous stratigraphy. They generally escaped from post-emplacement, high-pressure metamorphism. The melange type is a mixture of ophiolitic
openaire   +2 more sources

Magmatic significance and hydrothermal alteration of layered chromitites from the Bracco Gabbro Complex, Ligurian Ophiolites, Italy

Bulletin of the Mineral Research and Exploration
The Bracco chromitites are hosted in the Mesozoic Ligurian Ophiolites (Italy) and provide key insights into the magmatic and post-magmatic (i.e. metamorphic and hydrothermal) evolution ofgabbro-hosted chromitites in an oceanic mantle.
Federica Zaccarini, Raphael J. Baumgartner, Constantinos Mavrogonatos, Giorgio Garuti   +3 more
doaj   +1 more source