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Silurian gabbro-diorite-trondhjemite plutons in the Trondheim Nappe Complex,Caledonides,Norway:petrology and U-Pb geochronology
Silurian gabbro-diorite-trondhjemite plutons Trondheim Nappe Complex petrology U-Pb geochronology
2009/12/2
Large bodies of trondhjemite, up to 200 km2 in size and locally coexisting with diorite and gabbro, represent an important plutonic component of the Köli Nappes in the Trondheim Region. Zircon (a...
Characterization of carbon compounds on a pyroxene surface from a gabbro xenolith in basalt by time-of-flight secondary ion mass spectrometry
Characterization carbon pyroxene surface gabbro xenolith time-of-flight
2012/3/31
Time-of-flight secondary ion mass spectrometry (TOF-SIMS) yields mass spectra of the upper several monolayers of an analytical surface. The applicability of TOF-SIMS to the characterization of C compo...
Ferrian Saponite in a Gabbro Saprolite at Mont Megantic, Quebec
Ferric iron Genesis Oxidation Saponite Saprolite Weathering
2012/1/9
Gabbroic saprolite at Mont Mégantic, Quebec, was studied in detail mineralogically to gain a better understanding of the origin of ferruginous smectite reported previously from these rocks. The parent...
FLOW-LAYERING IN ALPINE PERIDOTITE-GABBRO COMPLEXES
FLOW-LAYERING IN ALPINE PERIDOTITE-GABBRO COMPLEXES
2014/4/8
Compositional layering in gabbro and peridotite may originate in several ways; in alpine complexes most of it is believed to be flow layering. Disruption of relict primary features formed by crystal s...
LAYERED PICRITE-ANORTHOSITIC GABBRO SHEET, WEST HUMBOLDT RANGE, NEVADA
LAYERED PICRITE-ANORTHOSITIC GABBRO SHEET WEST HUMBOLDT RANGE NEVADA
2014/4/8
The West Humboldt layered intrusion is a two-layer sheet exposed over a half square mile in the West Humboldt Range, Nevada. The body is composed of 235+ feet of hornblende picrite overlain by at leas...