 | | Journal (article/letter/editorial) | | major intrusive complexes of Monchique, Sines and Sintra in W. anra SW Portugal, to,,,.etLerwith their b...to theralitic minor intrusives in west central Portugal; about 80 small basanitic/iamprophyric to nepheline...Sezmount of the Gorringe Bank off the SW coast of Portugal. Most of these occurrences have been dated isotogically...Province are far from insignificant: the Monchique complex, for example, is one of the world's larger...feldspathoidal to peralkaline gneisses of Alentejo, Portugal (Floor 1974). Genert:lised descriptions of each |  | | Journal (article/letter/editorial) | | Chemical Mineralogy of the Monchique Alkaline Complex, Southern Portugal Nicholas M.S. Rock Institute...(aluminous titanaugite through salite and aegirine-augite to acmite), amphiboles (subsilicic kaersutite through...differentiated alkaline gabbroic-syenitic intrusions, Monchique also shows many unusual features: e.g. a restricted...geochemistry, that a major evolutionary process in the complex was a relatively discontinuous 'segregation' of...crystal fractionation. They also confirm that the complex represents neither a single in situ differentiating |  | | Journal (article/letter/editorial) | | Petrology and Petrogenesis of the Monchique Alkaline Complex, Southern Portugal by N. M. S. ROCK Institute of...November 1976; in revisedform IS March 1977) Monchique is a sizeable subvolcanic ?laccolith, unusual...little to the evolution of the complex. INTRODUCTION T H E Serra de Monchique is a mountain range in the...the far south of Portugal, commanding both Atlantic coasts of that country and separating the provinces...lies parallel to the country-rock foliation. The Monchique intrusion is the type-locality for Foyaite (Blum |  | | Journal (article/letter/editorial) | | associated lamprophyre dykes of Serra de Monchique, Portugal N. M. S. Rock Transactions of the Royal Society...associated lamprophyre dykes of Serra de Monchique, Portugal. Transactions of the Royal Society of Edinburgh...associated lamprophyre dykes of Serra de Monchique, Portugal N. M. S. Rock Institute of Geological Sciences...monchiquites from Monchique and Rio de Janeiro are hyalomonchiquites. The Monchique monchiquites are associated...camptonites and sannaites in a dykeswarm invading the Monchique foyaitic intrusion. Field, petrological, geothermometric |  | CIGOLINI, Corrado, DI MARTINO, Mario, LAIOLO, Marco, COPPOLA, Diego, ROSSETTI, Piergiorgio, MORELLI, Marco (2012) Endogenous and nonimpact origin of the Arkenu circular structures (alâKufrah basinâSE Libya) Meteoritics & Planetary Science, 47 (11) 1772-1788 doi:10.1111/maps.12012 | Journal (article/letter/editorial) | | and form a rather simple and eroded ring dike complex. Stock emplacement was followed by hydrothermal...interpreted by Orti et al. (2008) as a result of a complex volcanic-hydrothermal activity (thus favoring a...structure, in the southern Kufrah Basin, as an eroded complex impact structure, somehow similar to the Tin Bider...indicating that the Arkenu structures are the result of complex endogenous processes, so that the idea that they...structures are located from the base to the top. 1. The complex Precambrian basement (Archean to early Proterozoic) |  | | Journal (article/letter/editorial) | | The metamorphic unit on top of peridotite^gabbro complex is composed of chlorite schists, derived from a...gabbroic section [18,24]. Its mineralogy includes augite (Wo42 En41 Fs17 ), zoned plagioclase (An60Ăż18 )...from Mt. Gettysburg contain remnants of Ti-poor augite and pheno- and microcrysts of plagioclase, with...km to the east on the Continent (Serra de Monchique, Portugal) yield very similar initial isotopic compositions...depletion of the upper mantle is substantially more complex than suggested by the smoothness of the DM model |  | | Journal (article/letter/editorial) | | and Petrology of the Red Hill Alkaline Igneous Complex, New Hampshire, U.S.A. by C. M. B. HENDERSON 1...fluid-saturated conditions. It seems likely that the complex formed by emplacement of fractionated magmas derived...after the main complex was formed. INTRODUCTION This study of the Red Hill complex forms part of continuing...previous petrological work The Red Hill intrusive complex, New Hampshire (lat. 43°N; long. 71° 21'W) covers...Fig. 1) contains analcime syenites. The Red Hill complex is an association of alkali plutonic rocks, syenite |  | Cavalazzi, Barbara, Westall, Frances, Cady, Sherry L., Barbieri, Roberto, Foucher, FrĂ©dĂ©ric (2011) Potential Fossil Endoliths in Vesicular Pillow Basalt, Coral Patch Seamount, Eastern North Atlantic Ocean. Astrobiology, 11 (7) 619-632 doi:10.1089/ast.2011.0657 | Journal (article/letter/editorial) | | The Serra de Monchique Complex (72â70 Ma old alkaline volcanic rocks) in southern Portugal represents the...phenocrysts ( ÂŁ 500 lm in diameter) of clinopyroxene (augite) and chromian spinel (magnesiochromite) occur throughout...nm) of clinopyroxene, augite ((Ca,Mg,Fe)2(Si,Al)2O6). Reference spectrum: augite (532 nm), RRUFF ID: R061086 |
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