KSIĄŻKI POWIĄZANE ZE SŁOWEM «MICROPEGMATITE»
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1
Annotated Bibliographies of Mineral Deposits in the Western ...
irregular selvages of igneous or igneouslike rocks, the outer of which ranges from
norite through quartz gabbro to quartz diorite and the inner is called
micropegmatite. These two rock types are separated by a zone of transition (or
hybrid) rock, ...
2
Mineral Deposits of the Cerbat Range, Black Mountains, and ...
This also is on the Hardy vein in the granite porphyry and micropegmatite. It was
located by R. E. Zuver, of Gold Road, by whom and his associate. Maj. R. J.
Holmes, it was formerly owned. It is now owTned by the Navy Group Mining
Company ...
Frank Charles Schrader,
1909
3
New Zealand Journal of Geology and Geophysics
Small coarse•grained schlieren containing rather more micropegmatite than
usual are found at 600 ft above the base of the sill. Both pyroxene and
plagioclase here attain a size of 3 X 1 mm (P 23084) ; the proportion of pigeonite
to augite is ...
4
Geological Survey Professional Paper
is composed of olivine. Plagioclase forms about one- third of the rock, filling
interstices between olivine crystals. Augite forms less than one-tenth of the rock
and micropegmatite is absent. 2. Normal diabase. — More than one-half of the
rock is ...
33 Considered as extrusive, the Sudbury lopolith could be regarded as a three-
layered body made up of norite, micropegmatite, and Onaping tuff. Dietz
suggested that the norite and micropegmatite differentiated from the magma pool
within ...
6
United States Geological Survey Professional Paper
is composed of olivine. Plagioclase forms about one- third of the rock, filling
interstices between olivine crystals. Augite forms less than one-tenth of the rock
and micropegmatite is absent. 2. No)tnal diabase. — More than one-half of the
rock is ...
7
The Palisades Sill, New Jersey
Stage 7(i) fayalite granophyre contains much more olivine, micropegmatite,
hornblende, apatite, and zircon than rocks of stage 6, and obviously has formed
in somewhat more hydrous conditions. This gave rise to various alteration
products of ...
Kenneth Russell Walker,
1969
North Range micropegmatite The micropegmatite overlies and is transitional with
the norite. It is much wider than the norite; in general, twice as wide. Because of
an irregular heterogeneity within it, the micropegmatite is not so easily divisible ...
North Range micropegmatite The micropegmatite overlies and is transitional with
the norite. It is much wider than the norite; in general, twice as wide. Because of
an irregular heterogeneity within it, the micropegmatite is not so easily divisible ...
10
Geological Survey of Canada, Memoir 249
A volume analysis by Rice showed it to contain 26-6 per cent quartz, 25-6 per
cent orthoclase and micropegmatite, the latter possibly quartz and albite, with
some quartz and oligoclase, 46-5 per cent oligoclase (An2o), and 1-3 per cent
other ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «MICROPEGMATITE»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
micropegmatite w wiadomościach.
Lithex Resources' graphite foray paying off, delivers up to 23% grade
The Winterbourne occurrence contains the formerly operating Winterbourne graphite mine and is developed in a north-trending micropegmatite ... «Proactive Investors Australia, Lut 13»
Lithex Resources enters graphite hunt with tenement acquisitions
The Winterbourne occurrence contains the formerly operating Winterbourne graphite mine and is developed in a north-trending micropegmatite ... «Proactive Investors Australia, Paz 12»