Results 1 to 10 of about 3,223 (190)

Geochemical and geochronological dataset of rutile from a Variscan metabasite in Sardinia, Italy [PDF]

Data in Brief, 2020
A c. 500 m wide and 1.5 km long body consisting of basic to ultrabasic rocks, metamorphosed up to granulite-facies and retrogressed to amphibolite-facies conditions during the Variscan orogeny, crops out near Olbia (NE Sardinia, Italy).
Gabriele Cruciani, Dario Fancello, Marcello Franceschelli, Hans-Joachim Massonne, Antonio Langone, Massimo Scodina   +5 more
doaj   +5 more sources

Cadomian metabasites of the Eastern Pyrenees revisited

Geologica Acta, 2022
This study presents a new geochemical, petrological, and geochronological U–Pb dataset from Ediacaran metabasites of the Canigó and Cap de Creus massifs, Eastern Pyrenees.
Núria Pujol-Solà, Josep Maria Casas, Joaquín A. Proenza, Idael F. Blanco-Quintero, Elena Druguet, Montserrat Liesa, Manuel J. Román-Alpiste, J. Javier Álvaro   +7 more
doaj   +12 more sources

The P–T–X conditions of staurolite-garnet metabasites, NW Iran: Implications for metamorphism during Arabia-Eurasia collision

Journal of Asian Earth Sciences: X
The staurolite-bearing Avajiq metabasites (AMB) crop out near the NW border of Iran with Turkey and contain the peak assemblage garnet + Ca-amphibole + staurolite + biotite + chlorite1 + ilmenite. The AMB record peak pressure–temperature (P-T) conditions
Monir Modjarrad, Donna L. Whitney, Hadi Omrani   +2 more
doaj   +3 more sources

Formation and tectonic evolution of structural slices in eastern Kargı Massif (Çorum, Türkiye)

Bulletin of the Mineral Research and Exploration, 2022
The closure of Tethys Ocean has led to shaping the Central Pontides together with different types of rocks. In the east of Kargı (Gökçedoğan), which is located in the Central Pontides, allochthonous rocks of Late Palaeozoic- Early Cenozoic age and ...
Cihan Yalçın
doaj   +1 more source

Geochemistry of metabasites from the western Singhbhum Craton, eastern India: implications for subduction-zone tectonics and mantle-wedge metasomatism

Geologica Acta, 2022
The identification of new rock types in the volcano-sedimentary sequences of the Singhbhum Craton has attracted much attention in recent years. The present study deals on newly identified Nb-Enriched Basalts (NEB) from the Khandadharpahar-Kadakala ...
Mutum Rajanikanta Singh
doaj   +1 more source

Geology and Lithogeochemistry of the Supracrustal Sequence and Interlayered Metabasites of NE Santos Dumont Region (MG) [PDF]

Anuário do Instituto de Geociências, 2017
The region near Santos Dumont town consists of a sequence of interlayered metabasic rocks and supracrustal gneisses. Two lithological units were individualized based on geological-structural mapping (1:50,000), petrography and lithogeochemistry: a ...
Renata Hiraga, José Renato Nogueira, Beatriz Paschoal Duarte, Claudia Sayão Valladares, Vinicius de Oliveira Monteiro Guimarães, Rodrigo Peternel   +5 more
doaj   +1 more source

Mineralogy and metabasites formation conditions from ophiolite association at northern slope of Kuznetsk Alatau

Литосфера, 2017
The ophiolites of the northern slope of the Kuznetsk-Alatau Ridge are the most representative fragments of the sub-oceanic crust in the region. In this article, we present the results of a study of the metabasites from ophiolite paragenesis of the ...
N. A. Dugarova, P. A. Tishin, I. F. Gertner, T. S. Krasnova   +3 more
doaj   +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

Unique basite-metabasite structures of the Pobuzhsky ore mining region, their geological significance and ore-bearing prospects (by geophysical and geological data)

Геофизический журнал, 2018
The structure and prospects for ore content of three basite-metabasite massifs of the Pobuzhsky ore mining district — Bandurovsky, Troyan and Tarasovsky are considered using the example of the Tarasovska structure of the Middle Bug River of the ...
O.B. Gintov, V. Entin, S. V. Mychak, V. N. Pavlyuk, S. I. Guskov   +4 more
doaj   +1 more source

Elastic anisotropies of deformed upper crustal rocks in the Alps [PDF]

Solid Earth, 2021
The crust within collisional orogens is very heterogeneous both in composition and grade of deformation, leading to highly variable physical properties at small scales.
R. Keppler, R. Vasin, M. Stipp, T. Lokajícek, M. Petruzálek, N. Froitzheim   +5 more
doaj   +1 more source