«PERLITIC» 관련 영어 책
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1
Fluid Motions in Volcanic Conduits: A Source of Seismic and ...
sub-metre carapace of fractured rock that can still be recognized despite the
strong perlitic overprinting of the original structure. Joints are also separated by
millimetre- to centimetre-wide strongly perlitic zones. 1n addition, perlitic zones
form a ...
Steve J. Lane, Jennifer Susan Gilbert, 2008
2
Proceedings of Fatigue Crack Paths (FCP 2003), Parma, Italy 2003
Perlitic ductile iron shows a different fracture surface morphology, that always
does not depend on ΔK or R values. Secondary cracks and ductile and fragile
striations are the main fatigue crack propagation micromechanisms (Fig. 6).
Graphite ...
3
Industrial Minerals and Extractive Industry Geology: Based ...
Perlitic volcanic glasses occur within high-silica (71-75 wt% SiO2) volcanic
domes, lava flows (typically the best perlite), and welded ash-flows. Zonation in
many flows and domes consists of a glassy perlitic outer layer that encases
interior, ...
P. W. Scott, Colin Malcolm Bristow, 2002
4
Geological Survey Professional Paper
Sample consists of black spheroidal obsidian cores about 2 cm in diameter,
separated from their slightly perlitic matrix. Sparse small phenocrysts of quartz,
sanidine. oligoclase. and accessory minerals enclosed in welded glass shards.
5
Geological Survey Bulletin
Although highly variable in color and texture, the segments of commercial value
consist of pale-gray to dark bluish-gray glass with pronounced perlitic structure.
The El Paso perlite Company has been developing a southeastern segment of ...
6
Sugar Loaf and St. Kevin Mining Districts, Lake County, Colorado
Although highly variable in color and texture, the segments of commercial value
consist of pale-gray to dark bluish-gray glass with pronounced perlitic structure.
The El Paso perlite Company has been developing a southeastern segment of ...
Quentin Dreyer Singewald, 1955
7
The Quarterly journal of the Geological Society of London
their numerous varieties the precise analogues of the ancient volcanic rocks of
Shropshire. EXPLANATION OF PLATE XX. Fig.1. Portion of a thin. slice of perlitic
pitchstone from Meissen. The narrow shaded bands represent an incipient ...
Corrosion of austenitic steels in the presence of Cl The exponents of corrosion
process of perlitic-ferritic steels were analyzed with respect to the Cr content and
the dependence is presented in Fig. 3. The difference between the exponent ...
9
The Cambrian Rocks of Pennsylvania
On a spherulitic and perlitic obsidian from Pilas, Mexico. Quart. Jour. Geol. Soc.,
London, Vol. XXVII, 1891, pp. 530-533. . On the sequence of perlitic and
spberulitio structures : A rejoinder to a criticism. Quart. Jour. Geol. Soc., London,
Vol.
Charles Doolittle Walcott, 1896
10
The Pre-cambrian Along the Guld of Suez and the Norther Part ...
5b, Wadi Dib, R.S.H., near barite locality On the rather irregularly weathered
surface the structure is perlitic, and not typically fluidal. The perlitic aggregates
are dark brown in colour and disintegrate into balls of 1 to 4 mm diameter or
circular ...
Heinrich Moritz Emil Schuermann, 1966
