biotite in lamprophyre
Biotite: Biotite mineral information and data.
A series or subgroup of the
SYENITE, IJOLITE, CARBONATITE, ULTRAMAFIC ROCKS AND ...
SYENITE, IJOLITE, CARBONATITE, ULTRAMAFIC ROCKS AND LAMPROPHYRE ... Plagioclase Quartz KSpar Biotite Hornblende OrthoPyroxene Clino ... Lamprophyre 57% Anh Whitish ...
Paleoproterozoic basement beneath the southern Jiangxi ...
enebiotite lamprophyre. It suffered weak alteration, for example, chloritization of biotites and sericitization of feldspars.
Chronology of Late Cretaceous Igneous and Hydrothermal ...
Ar data for biotite from lamprophyre, Golden Sunlight mine area, ... LATE CRETACEOUS IGNEOUS AND HYDROTHERMAL EVENTS, GOLDEN SUNLIGHT BRECCIA PIPE. 2
Biotite Bing 网典
Biotite is an essential phenocryst in some varieties of lamprophyre. Biotite is occasionally found in large cleavable crystals, especially in pegmatite veins, ...
Lamprophyre from the Rossland gold camp, British Columbia ...
They typically display phenocrysts of biotite or amphibole in a cryptic ... Concise dictionary definitions for the lamprophyre family of rocks include the sense of ...
biotite | Minerals | Mineralogy
It is an essential phenocryst in some varieties of lamprophyre.[4] Biotite is a sheet silicate. Hausmann in 1847 in honour of the French physicist JeanBaptiste Biot.
Biotite Revolvy
Jan 02, 2016· Biotite is a common phyllosilicate mineral within the mica group, with the approximate chemical formula K(Mg,Fe) 3 AlSi 3 O 10 (F,OH) 2 . More generally, it refers to ...
Sr–Nd isotopic composition of lamprophyre dykes from Queen ...
Sr–Nd isotopic composition of ... two lamprophyre dykes are reported from the Schirmacher Oasis. The lamprophyre dykes have given Rb–Sr biotite/whole ...
Some features of Cornish lamprophyres ScienceDirect
SOME FEATURES OF CORNISH LAMPROPHYRES 261 In certain cases, ... A section through this harder variety shows the usual minerals of a biotite lamprophyre, ...
SHORT NOTES ON ALASICAN GEOLOGY 1981 .
SHORT NOTES ON ALASICAN GEOLOGY 1981 GEOLOGIC REPORT 73 Recent research on Alaskan geology . ... include a swarm of biotitelamprophyre dikes and sills,
Ouachitite breccia (NJSObb;7) USGS
Geologic unit mapped in New Jersey: Ouachitite breccia Mediumdarkgray, finegrained ouachitite (olivinefree biotite lamprophyre) containing pebble to cobble ...
Latestage hydrothermal alteration and heteromorphism of ...
Latestage hydrothermal alteration and heteromorphism of calcalkaline lamprophyre dykes in Late Jurassic granite, Southeast China
Investigation of Fault Control at Mather Gorge and ...
Investigation of Fault Control at Mather Gorge and Petrographic Analysis of Lamprophyre Dikes Casey Soneira Advisor: Dr. Martin Spring, 2007
Biotite dictionary definition | biotite defined
In the micaschists of this group biotite or muscovite may be the principal mineral and often both are ... lamprophyre; diorite; andesite; mafic. Words near biotite ...
FIELD RELATIONS, PETROGRAPHY AND GEOCHEMISTRY OF ...
FIELD RELATIONS, PETROGRAPHY AND GEOCHEMISTRY OF LAMPROPHYRE DIKES, TORRINGTON, CT: ARCE CERDA, ... with subordinate biotite and quartz.
Define lamprophyre | Dictionary and Thesaurus
Above Rocks Lamprophyres, Jamaica Minettes (biotiteorthoclase) and spessartite (amphiboleorthoclase) lamprophyre dykes are reported from the Above Rocks ...
U–Pb garnet and titanite age for the Bristol Township ...
UPb garnet and titanite age for the Bristol Township lamprophyre suite, western Abitibi Subprovince ... lamprophyre; et il coi'ncide ... garnetite and biotiterich ...
Lamprophyre Mining Fundamentals
Lamprophyre is a group of ultrapotassic igneous rocks which consist of phenocrysts of mica, particularly biotite or phlogopite and amphibole such as pargasite or ...
