Results 71 to 80 of about 387 (119)

Relations between basalts and adakitic-felsic intrusive bodies in a soft-substrate environment: the South Ouessant Visean basin in the Variscan belt, Armorican Massif, France [PDF]

, 2016
The metasedimentary and magmatic terranes in the southern part of the Ouessant Island (Western Britany, France) are the offshore prolongation of the Léon Variscan metamorphic domain. They mainly consist of micaschists and subordinate amphibolitic lenses
Caroff, M., Bussien Grosjean, Denise, Le Gall, Bernard, Guillong, Marcel, Labry, Cyrill, Authemayou, Christine, Grosjean, Denise Bussien, Caroff, Martial   +7 more
core   +1 more source

Alpine-style nappes thrust over ancient North China continental margin demonstrate large Archean horizontal plate motions. [PDF]

Nat Commun, 2021
Zhong Y, Kusky T, Wang L, Polat A, Liu X, Peng Y, Luan Z, Wang C, Wang J, Deng H.   +9 more
europepmc   +1 more source

Structure, Sr-Nd isotope geochemistry and zircon U-Pb geochronology of the granitoids of the Dabakala area (Côte d'Ivoire) : evidence for a 2.3 Ga crustal growth event in the Palaeoproterozoic of West Africa ?

, 2003
Structural, mineralogical and chemical studies show that the rocks from the Dabakala area, previously reported as gneisses and migmatites, are in fact syntectonic granitoid bodies.
Adou, M., Paquette, Jean-Louis, Barbey, P., Gasquet, Dominique   +3 more
core   +1 more source

Tracing Carbonate Formation, Serpentinization, and Biological Materials With Micro-/Meso-Scale Infrared Imaging Spectroscopy in a Mars Analog System, Samail Ophiolite, Oman. [PDF]

Earth Space Sci, 2021
Leask EK, Ehlmann BL, Greenberger RN, Pinet P, Daydou Y, Ceuleneer G, Kelemen P.   +6 more
europepmc   +1 more source

The petrological evolution of the Late Paleozoic A-type granites of the Wentworth plutonic complex of the Cobequid shear zone [PDF]

, 2011
iv, 134 leaves : ill. (chiefly col.), col. maps ; 29 cm.Includes abstract and appendices.Includes bibliographical references (leaves 122-134).The Wentworth Pluton is a bimodal intrusion which consists principally of a 362 Ma, A-type granite, part of ...
Papoutsa, Angeliki
core   +1 more source

Petrogenesis and geochronology of Precambrian granitoid gneisses in Western Liaoning Province: Constraints on Neoarchean to early Paleoproterozoic crustal evolution of the North China Craton

, 2012
The North Chaoyang-Fuxin-Yixian granite-greenstone belt (NCFY-GGB) at the northern margin of the Eastern Continental Block of the North China Craton is composed chiefly of metamorphic volcanic and volcano-sedimentary rocks and granitoid gneisses.
Li, Q., Simon A. Wilde, Guo, R., Wang, Wei, Bai, Xiang, Zhang, Jian, Guo, Rongrong, Bai, X., Yang, P., Qiugen Li, Liu, S., Wilde, Simon, Jian Zhang, Liu, Shuwen, Li, Qiugen, Wang, W., Shuwen Liu, Wilde, Simon A., Wei Wang, Pengtao Yang, Rongrong Guo, Xiang Bai, Yang, Pengtao, Zhang, J.   +23 more
core   +1 more source

The geochemistry of Archaean plagioclase-rich granites as a marker of source enrichment and depth of melting

, 2009
In geochemical diagrams, granitoids define ‘trends’ that reflect increasing differentiation or melting degree. The position of an individual sample in such a trend, whilst linked to the temperature of equilibration, is difficult to interpret.
J.-F. Moyen, R. H. Smithies, D. Champion
core   +1 more source

Petrology of a Possible Trondhjemitic Pluton in the Roanoke Rapids Terrane, Virginia

, 2010
The Roanoke Rapids Terrane, containing metasedimentary and metavolcanic rocks, also includes a small pluton in the Purdy 7.5’ quadrangle composed of medium grained grey rocks. These rocks consist mainly of quartz and plagioclase along with trace minerals
Hess, Steven P.
core   +1 more source

Petrology and geochemistry of the Neoproterozoic Siroua granitoids (central Anti-Atlas, Morocco): evolution from subduction related to within-plate magmatism

, 2008
International audienceThe Siroua massif includes many plutons of Neoproterozoic age. The mineralogical and geochemical character of the plutons allows us to describe an evolution of the magmatism, in space and time, from a subduction-related type in the ...
Moutte, Jacques, Hafid, A., El Boukhari, Abdelmajid, Touil, A.   +3 more
core   +1 more source

Geology and petrology of the Sasso di Castro ophiolites and associated plagiogranites.

, 1987
The Sasso di Castro ophiolite is a huge olistolith within the chaotic complex (late Cretaceous) of the external Liguride unit at Futa Pass, Tuscan Apennines.
SERRI G., CALANCHI N, MARRONI, MICHELE
core