|
www.minsocam.org/ammin/AM71/AM71_1085.pdf
|
Gabbro pegmatites are common in cumulate olivine gabbros in the Smartville complex, northern ... Fine-grained, idiomorphic granular gabbro in some pegmatite ...
|
|
www.turnstone.ca/rom71gpg.htm
|
Aug 9, 2011 ... A magnetite-rich gabbroic to pyroxenitic pegmatite of Grenville age, a small dyke or irregular mass ("pegmatoid") related to a small mafic ...
|
|
socrates.berkeley.edu/~eps2/wisc/peg.html
|
Pegmatites may be composed of a variety of minerals. Terms such as granite pegmatite, gabbro pegmatite, syenite pegmatite, or names with any other plutonic ...
|
|
petrology.oxfordjournals.org/content/43/5/885.full
|
The gabbro pegmatite yields Ar–Ar cooling ages of 119–121 Ma on igneous amphibole (kaersutite) (Turrin, 1999; Manatschal et al., 2002). We report here a new ...
|
|
facweb.bhc.edu/academics/science/harwoodr/geol101/labs/...
facweb.bhc.edu/academics/science/harwoodr/geol101/labs/igneous/
|
Pegmatitic, Granite Pegmatite, Diorite Pegmatite, Gabbro Pegmatite. Phaneritic, Granite, Diorite, Gabbro, Dunite. Aphanitic, Rhyolite, Andesite, Basalt ...
|
|
|
|
petrology.oxfordjournals.org/content/35/6/1651.full.pdf
|
gabbroic pegmatites are essentially late magmatic products derived from the ... The gabbroic pegmatites of the Skaergaard Intrusion are no exception.
|
|
petrology.oxfordjournals.org/content/43/5/885.full.pdf
|
gabbroic pegmatites and related rocks (127 ± 4 Ma, U–Pb zircon) intrude upper mantle that was ... over a 10 m interval), relatively fresh, gabbro pegmatite. 2001 ...
|
Pegmatite - Wikipedia, the free encyclopedia
|
|
en.wikipedia.org/wiki/Pegmatite
A pegmatite is a very crystalline, intrusive igneous rock composed of ... Most pegmatites are composed of quartz, feldspar and mica; in essence a granite.
|
|
|
www.jstor.org/stable/30057080
|
VOLUME 67. THE. JOURNAL OF. GEOLOGY. May 1959. ZONED GABBRO PEGMATITES OF EUREKA PEAK,. PLUMAS COUNTY, CALIFORNIA1. J. KERRY ...
|
