Results 21 to 30 of about 1,756 (223)

Assessment of Micronutrient Status in Soils Derived from Three Parent Materials on the Jos Plateau, Nigeria

UMYU Scientifica Journal, 2022
Parent materials play significant roles in determining the resultant characteristics of various soils. However, not much information is available on their micronutrient status of soil of the Jos Plateau.
Ayodele Owonubi, Orewere Emmamoge
doaj   +1 more source

Using a Landsat-8 image for lithological mapping of basement rocks at southeast Aswan city, South Eastern Desert, Egypt. [PDF]

Delta Journal of Science, 2022
The metamorphic rock units and the magmatic rock units constitute their two primary assemblages at southeast Aswan area. The metamorphic assemblage consists of migmatites, gneisses, and hornblende schist.
Islam Helal, Ibrahim Abu El-Leil, AHMED Abdel-Rahman, Nehal Soliman   +3 more
doaj   +1 more source

Carboniferous-Permian tectono-metamorphic evolution of the Pelvoux Massif (External Crystalline Massif, Western Alps), with discussion on flow kinematics of the Eastern-Variscan Shear Zone

BSGF - Earth Sciences Bulletin, 2022
Based on new structural, petrological and U-Th-Pb geochronological data, a reappraisal of the Variscan tectono-metamorphic history of the Pelvoux Massif (External Crystalline Massif, French Alps) is proposed with the aim to understand the flow pattern ...
Fréville Kévin, Trap Pierre, Vanardois Jonas, Melleton Jérémie, Faure Michel, Bruguier Olivier, Poujol Marc, Lach Philippe   +7 more
doaj   +1 more source

Deformation Behavior and Inferred Seismic Properties of Tonalitic Migmatites at the Time of Pre‐melting, Partial Melting, and Post‐Solidification

Geochemistry, Geophysics, Geosystems, 2021
As seismic data from the lower crust becomes more readily available, it is important to link seismic properties to the ongoing processes within lower crustal evolution.
Yilun Shao, Sandra Piazolo, Yongjiang Liu, Amicia L. Lee, Wei Jin, Weimin Li, Chenyue Liang, Quanbo Wen   +7 more
doaj   +1 more source

PETROGRAPHIC STUDIES AND PHYSICO-MECHANICAL PROPERTIES OF BIRIMIAN GRANITOIDS – A CASE STUDY OF OYOKO GRANITOIDS COMPLEX IN KOFORIDUA [PDF]

Geological Behavior, 2022
The study investigated the physico-mechanical and petrographic properties of the basin-type granitoids of the Oyoko granitoid complex, to establish their strengths for engineering properties.
Matthew Coffie Wilson, Rosalia Appiah Mangue Amankwah, Samuel Kow Ansah, Selase Nani, Dennis Asante   +4 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, Hugh O´Brien, Olavi Selonen, Matti Kurhila   +3 more
doaj   +1 more source

Assessment of Chemical Properties of Soils Derived from Basement Complex Rocks of the Jos Plateau

UMYU Scientifica Journal, 2022
Information on the chemical characteristics of soils is required in the sustainable the management of soil fertility and productivity. The objective of this study was to determine chemical characteristics of basement complex derived soils of the Jos ...
Ayodele Owonubi
doaj   +1 more source

Physical Conditions of the Formation of Plagioclase Crystals Using Crystal Size Dispersion (CSD) in the Mafic Migmatites of Northeastern Takab

Journal of Economic Geology, 2023
The Zanjan-Takab complex is a metamorphic belt with NW-SE trend that includes gneiss, amphibolite and gneissic amphibolite, old metagranites, pelitic schists with migmatites and metaophiolites.
Haleh Ghorbani, Robab Hajialioghli, Mohsen Moazzen   +2 more
doaj   +1 more source

Petrogenesis of Mesoproterozoic Granites of the Swartoup Hills Region, Kakamas Domain, Namaqua Belt, South Africa

Frontiers in Earth Science, 2021
The Swartoup and Polisiehoek plutons in the Swartoup Hills (South Africa) formed during an episode of significant magma emplacement in the Mesoproterozoic Namaqua Sector of the Namaqua Metamorphic Province.
Steffen Hermann Büttner, Stephen Anthony Prevec, Graeme Alvin Schmeldt   +2 more
doaj   +1 more source

Metasedimentary Metatexites with Trondhjemitic Leucosomes from NE Sicily: Another Example of Prograde Water-fluxed Melting in Collisional Belts

Geosciences, 2020
Trondhjemitic leucosomes, hosted in late Variscan metasedimentary migmatites from the upper amphibolite-facies basement of the north-eastern Peloritani Mountains (southern Italy), have petrographic and geochemical features consistent with their origin as
Patrizia Fiannacca, Rosolino Cirrincione
doaj   +1 more source