Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif [PDF]
, 2010 A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge +4 more
core +2 more sources
Tectonic setting of the Kolar Schist Belt, Karnataka, India [PDF]
The tectonic setting of the Kolar Schist Belt and why the belt may represent a late Archean suture was discussed. The isotopic and chronological evidence that suggest diverse origins of the various packages of supracrustal rocks within the schist belt ...
Hanson, G. N. +2 more
core +1 more source
Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: 207Pb-206Pb dating of magnetite, monazite and allanite in the central and northern Nagssugtoqidian orogen, West Greenland [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2006 Pb-isotopic data for magnetite from amphibolites in the Nagssugtoqidian orogen, central West Greenland, have been used to trace their source characteristics and the timing of metamorphism. Analyses of the magnetite define a Pb-Pb isochron age of 1726 ± 7
Frei, Robert +2 more
doaj
Geology of Byobu Rock and Gobanme Rock, Prince Olav Coast, East Antarctica [PDF]
, 2006 We report here the geology of Byobu Rock and Gobanme Rock outcrops hitherto unmapped in the Prince Olav Coast, East Antarctica. Both these outcrops expose high-grade metamorphic and igneous rocks.
M. Satish-Kumar +3 more
core +1 more source
Cambrian ensialic rift-related magmatism in the Ossa-Morena Zone [PDF]
, 2008 The Late Ediacaran (c. 560–550 Ma) Série Negra sediments of the Évora–Aracena metamorphic belt, Ossa-Morena Zone, SW Iberian Massif, preserve a record of the erosion of an Avalonian–Cadomian magmatic arc and subsequent related turbiditic sedimentation ...
Chichorro, Martim +6 more
core
The Moho as a magnetic boundary [PDF]
Magnetic data are presented for mantle derived rocks: peridtites from St. Pauls rocks, dunite xenoliths from the kaupulehu flow in Hawaii, as well as peridolite, dunite and eclogite xenoliths from Roberts Victor, Dutoitspan, Kilbourne Hole, and San ...
Mayhew, M. A. +2 more
core +1 more source
Diaplectic transformation of minerals: Vorotilov drill core, Puchezh-Katunki impact crater, Russia [PDF]
The Vorotilov core was drilled in the central uplift of the Puchezh-Katunki astrobleme to a depth of 5.1 km. Impactites are revealed in the rocks of the core beginning from a depth of 366 m: suevites (66 m), allogenic breccias (112 m), and autogenic ...
Feldman, V. I.
core +1 more source
, 2000 International audienceDans les zones de socle cristallin du Protérozoïque inférieur (Birimien) du Burkina Faso, les réserves d'eau souter-raine sont liées aux zones de faiblesse (failles, filons, contacts géologiques).
Bazie, Pibgnina +3 more
core +1 more source
Copper isotope evidence for sulfide fractionation and lower crustal foundering in making continental crust. [PDF]
Sci Adv, 2023 Liu SA +5 more
europepmc +1 more source
Détermination de la sensibilité potentielle des roches cristallophylliennes à l'altération chimique à partir de leur composition chimique [PDF]
, 2010 9 pages, 2 tableauxNational audienceLa sensibilité potentielle des roches cristallines à l'hydrolyse dépend très fortement de leur composition minéralogique.
Martin, Claude
core +2 more sources