Results 31 to 40 of about 9,282 (261)
Geosystems and GeoenvironmentThis 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 +6 more
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BSGF - Earth Sciences BulletinThe 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 +6 more
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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 +3 more
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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
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Dimension Stone: Exploration and Exploitation in parts of Lokoja, North-Central Nigeria
Journal of Applied Sciences and Environmental Management, 2020 The study area Lokoja is the home to the confluence between Rivers Niger and Benue. Dimension stone is cut or quarried stone in accordance with specific dimensions, generally more abundant and are used in greater quantities than ore minerals in pavement
N. Egesi, J.I. Nwosu
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Extreme extension across Seram and Ambon, eastern Indonesia: evidence for Banda slab rollback [PDF]
Solid Earth, 2013 The island of Seram, which lies in the northern part of the 180°-curved Banda Arc, has previously been interpreted as a fold-and-thrust belt formed during arc-continent collision, which incorporates ophiolites intruded by granites thought to have been ...
J. M. Pownall, R. Hall, I. M. Watkinson
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Melt inclusions in migmatites and granulites [PDF]
Journal of the Virtual Explorer, 2011 Important advances have been made during the last 15 years in the study of melt inclusions in minerals from migmatites and granulites. Pioneer work on high temperature metapelitic anatectic enclaves in peraluminous dacites from SE Spain has shown that droplets of granitic melt can be trapped by minerals growing during incongruent melting reactions, and
CESARE, BERNARDO +3 more
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Relationship between deformation structure and partial melting in pelitic migmatites of Hamaden region, Sanandaj-Sirjan Zone [PDF]
پترولوژیThe present paper describes some field characteristics of deformation in a high-strain and high temperature zone in migmatitic rocks, with several kilometers wide occurring in Hamedan and Toyserkan regions, NW of the Sanandaj- Sirjan Zone.
Seyedeh Razieh Jafari, Leyli Izadi Kian
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Shiyou shiyan dizhi, 2022 Taking the influence of lithological characteristics differences on the genesis of pores in migmatite reservoirs as the main line, the genesis and characteristics of pores were analyzed from the perspective of the relationship between rock fabric and ...
Jian WANG +6 more
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Spatio-Temporal Variation in Radon Concentration in Groundwater with Respect to Rock Types: A Case Study from Chitradurga District, Karnataka [PDF]
, 2014 An attempt was made in the present study to delineate how the radon concentrations vary with respect to different geological formations and to evaluate annual effective dose exposure due to ingestion of radon.
Deljo Davis, . +4 more
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