Results 61 to 70 of about 664 (135)

The Compositional Evolution of the Phyllosilicates in the Lateritic Profile of the Catalão I Ultramafic Alkaline-carbonatitic Complex (GO) [PDF]

Geologia USP. Série Científica, 2010
The compositional evolution of the phyllosilicates in the lateritic profile of the Catalão I ultramafic alkaline-carbonatiticcomplex (GO) is proposed in this work based on petrographic and X-ray diffraction analysis, as well as, chemical ...
Rogério Guitarrari Azzone, Excelso Ruberti   +1 more
doaj  

High P‐T Sound Velocities of Amphiboles: Implications for Low‐Velocity Anomalies in Metasomatized Upper Mantle

Geophysical Research Letters
Metasomatized mantle xenoliths containing hydrous minerals, such as amphiboles, serpentine, and phlogopite, likely represent the potential mineralogical compositions of the metasomatized upper mantle, where low seismic velocities are commonly observed ...
Wen‐Yi Zhou, Ming Hao, Dongzhou Zhang, Przemyslaw Dera, Soisiri Charin, Jin S. Zhang   +5 more
doaj   +1 more source

Metasomatism and Melting of Cordilleran Lithosphere Resulting From Sediment Relamination During Shallow Subduction

Geochemistry, Geophysics, Geosystems
Mantle xenoliths recovered from the modern backarc region of the northern Altiplano Plateau record metasomatism by slab‐derived silicic melts, and a suite of Quaternary volcanics suggest that melting of accreted crustal material has persisted since ...
C. D. Hiett, D. L. Newell, J. W. Shervais   +2 more
doaj   +1 more source

First evidence of lamprophyric magmatism within the Subbetic Zone (Southern Spain)

Geologica Acta, 2010
Two drillings carried out at Cerro Prieto (Province of Málaga), together with additional geophysical data, revealed the existence of an igneous body formed of rock-types previously unknown in the Subbetic zone.
E. PUGA, L. BECCALUVA, G.L. BIANCHINI, A. DÍAZ DE FEDERICO, M.A. DÍAZ PUG, A.M. ÁLVAREZ VALERO, J. GALINDO ZALDÍVAR, J.R. WIJBRANS   +7 more
doaj  

Facial accessory of high-titanium magnezium-ferruginous micas as one of evaluation criteria of metamorphic and magmatic rocks rare-metall specialization

Литосфера, 2015
Type-chemical features of high-titanium magnezium-ferruginous micas of granulites, mafite-ultramafites, alkaline rocks, and carbonatites are considered.
A. I. Belkovsky
doaj   +2 more sources

Experimental production of K-rich metasomes through sediment recycling at the slab-mantle interface in the fore-arc. [PDF]

Sci Rep, 2023
Gülmez F, Prelević D, Förster MW, Buhre S, Günther J.   +4 more
europepmc   +1 more source

Review of Survey Activities 2005: Archetypal kimberlite from the Maniitsoq region, southern West Greenland and analogy to South Africa [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2006
Jensen, Sven M., Jebens, Martin, Nielsen, Troels F.D., Secher, Karsten   +3 more
doaj  

Serpentine Overburden Products-Nature-Inspired Materials for Metal Detoxification in Industrially Polluted Soil. [PDF]

Toxics, 2023
Slukovskaya MV, Petrova AG, Ivanova LA, Ivanova TK, Mosendz IA, Novikov AI, Shirokaya AA, Kovorotniaia MV, Panikorovskii TL, Kremenetskaya IP.   +9 more
europepmc   +1 more source

Mineralogy and geochemistry of xenoliths in the Eocene volcanic rocks from southwest of Jandaq

Journal of Economic Geology, 2013
The Eocene volcanic rocks from the southwest of the Jandaq (Kuh-e-Godar-e-Siah, Central-East Iran micro-continent) are andesitic basalt and andesite in composition. These rocks contain xenoliths with granulitic mineralogy.
Samineh Rajabi, Ghodrat Torabi
doaj  

Adsorption of Cs Ions in Hydroxy-Al Interlayered Clay Minerals and the Aging Mechanism. [PDF]

Langmuir
Sakuma H, Tamura K, Suehara S, Hashi K.
europepmc   +1 more source