Results 81 to 90 of about 5,853 (215)

Geochemistry of two associated ophiolites from the Cabo Ortegal Complex (Variscan belt of NW Spain)

, 2007
Two Paleozoic ophiolites of different age mark the Variscan suture in the Cabo Ortegal Complex (northwestern Iberian Massif). The Moeche and Purrido allochthonous ophiolites are structurally located between an exotic terrane of continental affinity ...
Julian A. Pearce, Martínez Catalán, José Ramón, Sonia Sánchez Martínez, Pilar Andonaegui, Ricardo Arenas, Sánchez Martínez, Sonia, Arenas Martín, Ricardo, Pearce, Julian A., José R. Martínez Catalán, Andonaegui Moreno, María Del Pilar   +9 more
core   +1 more source

Geochemistry of amphibolites and related graphitic gneisses from the Suchý and Malá Magura Mountains (central Western Carpathians) – evidence for relics of the Variscan ophiolite complex

Geologica Carpathica, 2015
Three small bodies of amphibolites and associated graphitic gneisses from the Suchý and Malá Magura Mountains (Tatric Megaunit, central Western Carpathians) have been studied by petrographic and geochemical methods.
Ivan Peter, Méres Štefan
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

An overview of the evolution of the internal hellenides (Albania, Republic of North Macedonia, Greek Central Macedonia): obductions, collisions and North Aegean extension

BSGF - Earth Sciences Bulletin
The geological analysis of the Albanian-Macedonian transect constraints a framework of the Internal Hellenides in which 3 or 4 Jurassic oceanic basins opened at 174–160 Ma; they bordered the Western European Continent.
Vergély Pierre, Mercier Jacques Louis
doaj   +1 more source

Petrogeochemical characteristics of chrome-bearing ultramafites in the Kurtushibinsky ophiolite belt (Western Sayan)

Литосфера, 2019
Research subject. The metamorphic ultramafites of the Kalninsky and Ergaksky massifs located in the northeastern part of Western Sayan (Russia) constitute the Kurtushibinsky ophiolite belt.
A. I. Chernyshov, A. N. Yurichev, A. V. Kicheeva   +2 more
doaj   +1 more source

Formation mechanism and stability analysis of a landslide in altered ophiolite in the upper reaches of Jinsha River: A case study of the Duirongtong landslide

Dizhi lixue xuebao
Objective  The tectonic suture zone of the Qinghai-Tibet Plateau has a complex rock mass structure and special lithology combination and is thus prone for large landslides.
RAN Lina, ZHANG Yongshuang, REN Sanshao, LI Jinqiu   +3 more
doaj   +1 more source

A new look at the geodynamic development of the Ediacaran–early Cambrian forearc basalts of the Tannuola-Khamsara Island Arc (Central Asia, Russia): Conclusions from geological, geochemical, and Nd-isotope data

Open Geosciences
Oceanic igneous rocks throughout the Altai-Sayan Fold Belt (ASFB) in central-southern Siberia are often considered to be late Precambrian–early Paleozoic accreted elements of oceanic crust – often of uncertain paleogeographic or geodynamic origin.
Mongush Andrey Alexandrovich, Olschewski Pascal   +1 more
doaj   +1 more source

The Mesozoic ophiolites of the Alps: a review

, 1994
The Alpine ophiolites are mostly concentrated in the inner and axial sectors of the Penninic nappe pile, as slices of the Jurassic Tethyan ocean which opened between the Europe and Adria (Africa) passive margins.
G. V. Dal Piaz, P. Tartarotti, S. Martin
core   +2 more sources

The ophiolites of southern Quebec: oceanic crust of Betts Cove type

, 1977
The Thetford and Asbestos ophiolites of the Eastern Townships of Quebec (Internal Domain) resemble the Betts Cove ophiolite of Newfoundland in three significant respects: (1) ultramafic cumulate sequences of the ophiolites include units with cumulus ...
W. R. Church
core   +1 more source

The Shalap Mélange of the Salairian Alambay Ophiolite Zone (Northwestern Central Asian Orogenic Belt), Geological Structure and Compositional Features of Amphibolites and Greenstone Basalts

Геодинамика и тектонофизика
The Alambay ophiolite zone (AOZ) is located in the axial part of the Early Paleozoic Salair orogen and includes the northern extension of the Alambay-Kaim zone, Salair and Altai Mountains.
F. I. Zhimulev, A. V. Kotlyarov, A. V. Travin, M. A. Fidler, A. A. Khuurak   +4 more
doaj   +1 more source