Results 21 to 30 of about 2,386 (223)

Structure of a Variscan migmatite-granite transition zone (N Sardinia, Italy)

Journal of Maps, 2023
This paper presents the structural map of the Barrabisa Complex, an E-W ribbon-like migmatitic massif exposed in the northern part of Sardinia. The migmatites consist of metatexites and diatexites with variable melt proportion, grading in the central ...
M. De Luca, N. Ruberti, G. Oggiano, Ph. Rossi, V. Pascucci, L. Casini   +5 more
doaj   +1 more source

Nappe tectonics in the Matomb-Hegba area, South-Central Cameroon: Implications on the tectonic evolution of the Yaoundé Group in the Central African Orogenic Belt

Geosystems and Geoenvironment
This paper documents the thrust tectonics in the Yaoundé Group using detailed field mapping and satellite imagery data. The litho-stratigraphic of the Matomb-Hegba area located W of the Pan-African Yaoundé series comprised two main metasedimentary units:
Victor Metang, Henri Appolinaire Kenzo, Rose Noel Ngo Belnoun, Dior-Christelle Mboutchouang, Steve Franck Bamou-Wandji, Brigitte Domkam, Boris Toyi Tchouta   +6 more
doaj   +1 more source

Geochemical and isotopic data from metasedimentary migmatites

, 2019
Geochemical and isotopic data from different migmatites with metasedimentary ...
Wolf, M (via Mendeley Data)
core   +1 more source

An analogue model of melt segregation and accumulation processes in the Earth’s crust [PDF]

Estonian Journal of Earth Sciences, 2007
An analogue experiment was carried out to model melt segregation from the solid rock matrix and its subsequent transport. Carbon dioxide gas and sand were used as analogue materials of crustal partial melt and host rock, respectively.
Soesoo, Alvar, Urtson, Kristjan
doaj  

The Djourdé-Sinassi magmatic-migmatitic complex, Northern Cameroon: a record of vertical extrusion of the Pan-African partially molten orogenic root

BSGF - Earth Sciences Bulletin
The Djourdé-Sinassi magmatic-migmatitic complex is part of the juvenile Neoproterozoic Garoua Domain located in Northern Cameroon. It is surrounded by the Zalbi, Poli and Rey-Bouba greenstone belts, limited to the east by the sinistral Tcholliré-Banyo ...
Tiani Djuimou Suzanne, Bouyo Houketchang Merlain, Vanderhaeghe Olivier, Achu Megnemo Ludovic, Azefack Mbounou Loïque Rodolph, Gregoire Michel, Kagou Dongmo Armand   +6 more
doaj   +1 more source

Physicochemical conditions of the formation of the Larino granite-gneiss dome (South Ural)

Georesursy
The Larino granite-gneiss dome is located on the border of the Aramil-Sukhtelya and Magnitogorsk megazones and is a two-headed anticlinal structure, the nuclear parts of which are composed of granitoids of the Pervomai and Larino massifs, and their ...
V. I. Snachev, A. V. Snachev, V. Yu. Prokofiev   +2 more
doaj   +1 more source

Petrogenetic link between metasedimentary rocks, migmatites and granitoids in the Variscan basement of the Pontgibaud area, French Massif Central – implications for the crustal structure

BSGF - Earth Sciences Bulletin
The architecture of the crust in the French Massif Central (FMC) is described as a nappe stack composed, from top to bottom, of the Upper Gneiss Unit (UGU), the Lower Gneiss Unit (LGU), and the Para-Autochthonous Unit (PAU), which are intruded by ...
Passos do Carmo Caliméria, Vanderhaeghe Olivier, Laurent Oscar, Berger Julien, Bellanger Mathieu, Leisen Mathieu, Chmeleff Jérôme   +6 more
doaj   +1 more source

Banded amphibolites in the Alps: a new interpretation in relation to early Paleozoic peraluminous magmatism

Swiss Journal of Geosciences, 2020
The Strona-Ceneri Zone is located south of the Insubric line, where Alpine overprint is mainly brittle and of low grade or even absent. Apart from the unmetamorphic Permo-Carboniferous sediments and intrusiva the Strona-Ceneri Zone is an Ordovician ...
Roger Zurbriggen
doaj   +1 more source

The 1.79 Ga Särkilahti leucogranite – a horizontal magma layer below granulite-grade migmatites in SE Finland [PDF]

Bulletin of the Geological Society of Finland, 2019
The heterogeneous, peraluminous Särkilahti garnet-cordierite leucogranite occupies ~ 75 km2 area in Svecofennian granulite-grade terrain of SE Finland. Country rocks are metasedimentary garnet-cordierite-biotite migmatites with some orthopyroxenegarnet ...
Hannu Mäkitie, Hugh O´Brien, Olavi Selonen, Matti Kurhila   +3 more
doaj   +1 more source

Weichselian history of the Fennoscandian Ice Sheet centre, Kvarken archipelago, western Finland—flow shifts, thermal regime and deglaciation

Boreas, EarlyView.
Rapid thaw of the Earth's cryosphere in response to anthropogenic warming highlights the need to identify and understand the contrasting signatures of past ice‐sheet stability and collapse. The Kvarken archipelago, western Finland, at the centre of the former Fennoscandian Ice Sheet (FIS), has been designated a UNESCO World Heritage site in recognition
Niko Putkinen, Tapani Tervo, Adrian M. Hall, Juha P. Lunkka, Pertti Sarala, Olli Breilin, Jari Nenonen   +6 more
wiley   +1 more source