10 BÜCHER, DIE MIT «TRACHYTOID» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
trachytoid in der folgenden bibliographischen Auswahl. Bücher, die mit
trachytoid im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
Phosphate Deposits of the World: Volume 2, Phosphate Rock ...
(3) Trachytoid syenites. In the deep valleys of the western part of the area,
trachytoid syenites alternate with layers of melteigite-malignite rocks. Trachytoid
syenites are cut by steeply to gently dipping dykes of nepheline syenite.
Trachytoid ...
A. J. G. Notholt, R. P. Sheldon, D. F. Davidson,
2005
2
Igneous Rocks: Composition, Texture and Classification, ...
Trachytoid phonolites occur in numerous localities in Bohemia, and con~ tain
notable amounts of hallynite or other socialite minerals, the nephelite being very
subordinate in some varieties. The phonolìte forming the plateau west о!
Radelstein ...
3
New Zealand Journal of Geology and Geophysics
Some of the basalts and trachytoid phonolites closely resemble rocks from other
areas in South Victoria Land and from off-shore islands. These resemblances are
discussed and it is concluded that there is a relationship between the Cape ...
4
Geological Survey Professional Paper
Trachytoid aegirine-nepheline syenite forming an imperfect ring within the
peripheral ring dike. 4. Poikilitic micaceous nepheline syenite forming an
imperfect ring and consisting of alkali feldspar, nepheline, mica, aegirine, and
astrophyl- lite.
Geological Survey (U.S.),
1976
5
Antarctica in the International Geophysical Year: Based on a ...
This work is divided into five parts, namely: (1) the distribution of the volcanic
rocks, (2) phonolitic trachytes and trachytoid phonolites, (3) kenytes, (4) basalts,
and (S) summary and concluding remarks. The first part provides the background
for ...
American Geophysical Union,
1956
6
Geological Survey Bulletin
METAMORPHOSED HYPABYSSAL INTRUSIVE ROCKS IN DIKES AND SMALL
MASSES TRACHYTOID MONZONITE Two small intrusive bodies of
blastoporphyritic trachytoid monzo- nite are located north and west of Mud Lake (
in sec.
7
Palaeoproterozoic Supercontinents and Global Evolution
8h, i, Table 3) on zircon from trachytoid gabbronorite are 2505 ± 6 Ma, MSWD =
0.31 and 2501+8 Ma, MSWD = 3 (Bayanova & Mitrofanov 2005). A sample was
also taken from the rocks of the differentiated series of the Chunatundra intrusion.
Steven Michael Reddy,
2009
8
U.S. Geological Survey Professional Paper
From a point directly west of the shaft the ore comes closely in contact with a
large 60-foot dike of trachytoid phonolite on the west side. This dike extends far
south into the workings of the Mogul mine, where it finally dwindles to nothing.
9
Archean to Anthropocene: Field Guides to the Geology of the ...
29, NW 1/4 Cold Spring quadrangle UTM: 383,992E/5,032,883N Highlights:
1772 ± 3 Ma Richmond granite—Charnockitic, rapakivi granite with prominent
trachytoid K-feldspar phenocrysts. Description: The Richmond granite yields the ...
James D. Miller, George H. Hudak, Chad Wittkop,
2011
10
Guide-books for the Excursions ...
lite syenites intrude into the northern part of the thick intrusj ive sheet of the
alkaline syenite porphyries. 21. At the side of the crescent-like band, which is
turned to the periphery of the massif the trachytoid chibi- nite complexes are in
contact, ...