Now showing items 1-10 of 2781
Sr and Nd isotope composition of the metamorphic, sedimentary and ultramafic xenoliths of Lanzarote (Canary Islands): Implications for magma sources
(ELSEVIER SCIENCE BV, 2010)
The lavas produced by the Timanfaya eruption of 1730-1736 (Lanzarote, Canary Islands) contain a great many sedimentary and metamorphic (metasedimentary), and mafic and ultramafic plutonic xenoliths. Among the metamorphosed ...
New time-constraints on provenance, metamorphism and exhumation of the Bahía Mansa Metamorphic Complex on the Main Chiloé Island, south-central Chile
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2008)
P-T conditions of metapelites from metamorphic complexes in Aysen, Chile
(PERGAMON-ELSEVIER SCIENCE LTD, 2005-08)
Pressure and temperature metamorphic conditions were determined for K-white mica and chlorite in metapelites from the eastern Andean metamorphic complex (EAMC) and from the Chonos metamorphic complex (CMC) of southern ...
Petrological and geochemical characteristics of metamorphic and igneous units from the allochthonous Madre de Dios Terrane, Southern Chile
(ELSEVIER SCIENCE BV, 2008-03)
The Denaro Complex, part of the Madre de Dios Terrane is composed of metamorphosed pillow basalts, metahyaloclastites, banded metalliferous and radiolarian metacherts, metapelites and redeposited calcareous metasandstones. ...
New time constraints for the age of metamorphism at the ancestral Pacific Gondwana margin of southern Chile (42-52°S)
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2002)
Unraveling an antique subduction process from metamorphic basement around Medellin city, Central Cordillera of Colombian Andes
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
In the surroundings of Caldas and El Retiro cities (Colombia) metamorphic rocks derived from basic and pelitic protoliths comprise the Caldas amphibole schist and the Ancon schist respectively. Subordinated metamorphosed ...
Subgreenschist facies metamorphism of metabasites from the Precordillera terrane of western Argentina; constraints on the later stages of accretion onto Gondwana
(E Schweizerbartsche Verlags, 2005-05)
The metamorphic character of metabasites of the Precordillera terrane of western Argentina provides constraints which help to distinguish between contrasting models for the tectonic settings during the late stages of the ...
The cedrolina chromitite, Goiás State, Brazil: A metamorphic puzzle
The Cedrolina chromitite body (Goiás-Brazil) is concordantly emplaced within talc-chlorite schists that correspond to the poly-metamorphic product of ultramafic rocks inserted in the Pilar de Goiás Greenstone Belt (Central ...
Thermal metamorphism of mantle chromites and the stability of noble‑metal nanoparticles
The Loma Baya complex in south-western Mexico is a volume of chromitite-bearing oceanic mantle that records a complex metamorphic history, defined by a first stage of hydrous metamorphism overprinted by a short-lived thermal ...