Results 131 to 140 of about 842 (183)

Characterization of talc deposits in ultramafic rocks of Gebel El Maiyit and its economic feasibility. [PDF]

Sci Rep
Salem IA, Aly SM, Shebl A, Thabet IA.
europepmc   +1 more source

Effect of land use, geology, and seasonality on hydrogeochemical baseline variations in a watershed impacted by human activities in the eastern Amazon. [PDF]

Environ Monit Assess
Salomão GN, Dall'Agnol R, de Almeida GS, Amarante RT, Mello GM, da Silva Júnior RO, Guimarães JTF, da Silva MS, Ferreira DM, Pontes PRM, Sahoo PK, Marques ED, da Silva Filho EV.   +12 more
europepmc   +1 more source

Enhancement of the geological mapping in weathered plutonic and metamorphic rocks areas using village water supply wells data (lithology and hydrochemistry). [PDF]

Heliyon
Ouangaré CAC, Naba S, Lachassagne P.
europepmc   +1 more source

Proto-Tethyan tectonics in East China: a revisit. [PDF]

Natl Sci Rev
Meng QR, Wu GL, Wan B, Zhu RX, Duan L, Wang B, Hu JM.   +6 more
europepmc   +1 more source

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Geochemistry of Vendian (?) Metasedimentary Rocks of the Byrka Series of the Argun Superterrane

Geochemistry International, 2022
Yu N Smirnova, Dril S I, S I Dril
exaly   +2 more sources

Amphibolitization of calc-silicate metasedimentary rocks

Contributions to Mineralogy and Petrology, 1971
Diopside granofels layers are associated with other metasedimentary rocks and gneisses near McMurdo Sound, Antarctica. Disrupted diopside granofels layers form tectonic inclusions which may have reaction rims of amphibolite. This amphibolite may either be a typical hornblende-plagioclase amphiholite or a hornblende-quartz amphibolite according to the ...
Smithson, Scott, Fikkan, Philip, Houston, Robert S.   +2 more
openaire   +1 more source

Microstructures of melt inclusions in anatectic metasedimentary rocks

Journal of Metamorphic Geology, 2012
AbstractThe occurrence of crystallized and glassy melt inclusions (MI) in high‐grade, partially melted metapelites and metagraywackes has opened up new possibilities to investigate anatectic processes. The present study focuses on three case studies: khondalites from the Kerala Khondalite Belt (India), the Ronda migmatites (Spain), and the Barun Gneiss
FERRERO, SILVIO, BARTOLI, OMAR, CESARE, BERNARDO, E. SALVIOLI MARIANI, A. ACOSTA VIGIL, A. CAVALLO, C. GROPPO, S. BATTISTON   +7 more
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Geochemistry of Archean metasedimentary rocks from West Greenland

Geochimica et Cosmochimica Acta, 1984
Abstract Archean metasedimentary rocks occur as components of the Isua supracrustals, Akilia association and Malene supracrustals of southern West Greenland. Primary structures in these rocks have been destroyed by metamorphism and deformation. Their chemistry and mineralogy is consistent with a sedimentary origin, but other possible parents (e.g ...
Scott M McLennan, S.R Taylor, V.R McGregor   +2 more
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Isotope disequilibrium during partial melting of metasedimentary rocks

Geochimica et Cosmochimica Acta, 2019
Abstract The chemical composition of partial melts is buffered by the rock forming minerals that participate in the melting reactions and by the solubility of accessory phases in these melts. Both depend on the melting conditions. The chemical composition of restite depends on the restite mineralogy and may be highly variable.
Mathias Wolf, Rolf L. Romer, Johannes Glodny   +2 more
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Partial melting of common metasedimentary rocks: A mass balance approach

Contributions to Mineralogy and Petrology, 1980
Materials balance calculations are presented to document the progressive bulk chemical changes in metagreywacke and metapelite with separation of increments of granite of minimum melt composition. During partial melting, enrichment of Fe relative to Mg in granite and strong absorption of water leave residual rocks with increasing proportions of such Mg-
MacRae, N. D., Nesbitt, H. W.
openaire   +1 more source