Results 21 to 30 of about 6,037 (231)
Bulletin of the Geological Society of Malaysia, 2006 A geophysical survey using seismic refraction technique was carried out at a proposed development site at MINT Dengkil. The aim of the study was to characterize the subsurface materials based on seismic P-S wave velocities as well as to correlate those ...
Umar Hamzah
exaly +1 more source
Geophysical Research Letters, 2022 Subducted oceanic crust is enriched in free silica. Although being one of the silica polymorphs at lower‐mantle pressures, niccolite‐type phase (Nt‐phase) has not been documented in multicomponent metabasaltic or metasediment compositions relevant to ...
Lu Liu +8 more
doaj +1 more source
Kuwait Journal of Science, 2023 Landsat 8 used multispectral images to map surface structures and validate the existence of suspected mineral alteration zones in the southwestern part of the Sokoto Basin in Nigeria.
N.Kolawole Olasunkanmi +2 more
doaj +1 more source
Brazilian Journal of Geology, 2021 The São João do Sabugi Pluton (SJSP) (∼579 Ma) is one of the most expressive occurrences of Ediacaran, syn- to post-collisional shoshonitic rocks in the Rio Piranhas-Seridó Domain, Borborema Province, NE Brazil.
Dayvison Bruno Cordeiro de Paiva +3 more
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Tracing fluid transfers in subduction zones: an integrated thermodynamic and δ18O fractionation modelling approach [PDF]
Solid Earth, 2020 Oxygen isotope geochemistry is a powerful tool for investigating rocks that interacted with fluids, to assess fluid sources and quantify the conditions of fluid–rock interaction. We present an integrated modelling approach and the computer program PTLoop
A. Vho +4 more
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SN Applied Sciences, 2023 Gold mineralization of the Upper Lom Basin in the eastern Cameroon goldfield is spatially associated with tourmaline. The goldfield belongs to the Adamawa-Yadé Domain of the Central African Fold Belt and is characterized by eluvial, alluvial and lode ...
Nicoline Kibong Fontem +6 more
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Geosciences, 2022 The Kapuskasing Structural Zone transects the Wawa and Abitibi greenstone belts in the Superior province of the Canadian Shield. At the southern margin of the Kapuskasing Structural Zone (KSZ), the Borden Gold deposit hosts low-grade-gold mineralization ...
Daniel LaFontaine +2 more
doaj +1 more source
Critical metal enrichment in crustal melts: The role of metamorphic mica
Geology, 2022 Metals such as Li, Be, V, Co, Nb, In, Cs, Sn, Ta, and W are considered resources that are critical for modern economies. They can be significantly enriched in granites and pegmatites, but the mechanisms of enrichment remain poorly understood.
B. Kunz +4 more
semanticscholar +1 more source
The Petrology of the Wong Tei Tung Stone Tool Manufacturing Site, Sham Chung, Hong Kong Sar, China
Internet Archaeology, 2009 The Wong Tei Tung archaeological site was discovered in 2003. Two periods have been proposed: an earlier period dating to around 40,000 years bp, and a later period dating to around 7000 years bp, but these dates should be treated cautiously.
Vin Davis, Rob Ixer
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The age of the ferropicritic volcanics and comagmatic Ni-bearing intrusions at Pechenga, Kola Peninsula, U.S.S.R. [PDF]
Bulletin of the Geological Society of Finland, 1990 Sm-Nd, Pb-Pb and U-Pb isotopic results are presented for samples from the Pilgujärvi Suite of the Pechenga Series. Whole rock samples and clinopyroxenes of ferropicritic volcanics yield a Sm-Nd isochron age of 1990 ± 66 Ma with εNd + 1.6 ± 0.4.
E. Hanski +3 more
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