«SERICITIZATION» 관련 영어 책
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(1987) estimated that the sericitization of the Silverton caldera occurred during
two hydrothermal events that involved heated meteoric water, at temperatures of
about 180°C in a 21 Ma event and about 320° C in a 13 Ma event. Sericitization
of ...
M. E. Fleet, Robert Andrew Howie,
2003
2
Advances in 40Ar/39Ar Dating: From Archaeology to Planetary ...
Age of the alteration : / age of unaltered plagioclase -10% Age of the unaltered
plagioclases : can be 100 Ka to 1 Ga % SERICITIZATION Fig. 2. Per cent K–Ar or
40Ar/39Ar age reduction (AR parameter in %) v. % sericitization, for three ...
F. Jourdan, D.F. Mark, C. Verati,
2014
3
A Modern Approach in Geography: For the Evaluation of Soils ...
The chemical weathering by mineral transformation (Sericitization, chloritization
and kaolinization) mostly occurs on account of the type of lithological structure.
Pedo-chemical weathering which occurs due to the nature of vegetation plays a ...
Prem Bahadur Saxena,
1987
4
Metamorphism and Crustal Evolution: Papers in Honour of ...
Kyanite Sillimanite K- feldspar Isoclinal Tight root folds Sericitization/
pyrophyllitization Sericitization Sinistral shearing and less retrogression parallel
or little oblique to S,. Reclined and Isoclinal root-less coeval folds Zoning
Porphyroblast over ...
5
Base-metal Deposits of the Cordillera Negra, Departamento de ...
Alteration of igneous rocks may be divided into four processes: propylitization,
sericitization, argillitization, and silicification. Propy- litization may have in part
preceded mineralization (p. 23). Pyroxenes, amphiboles, and related dark
minerals ...
Alfred John Bodenlos, John A. Straczek,
1957
SERICITIZATION. The conversion of feldspar into muscovite is one of the
commonest processes of metamorphism, whether of igneous or of sedimentary
rocks. In many instances the mica produced is the compact or fibrous variety
known as ...
7
Geological Survey Professional Paper
Incipient granoblastic texture and sericitization of white mica, noted in several
thin sections from rocks near the large pluton west of the North Fork of the Salcha
River, suggest that only minor thermal metamorphism has resulted locally.
Geological Survey (U.S.),
1983
8
United States Geological Survey Professional Paper
The hydrothermal alteration of the Metcalf porphyry chiefly consists in a
sericitization b\' which all of the feldspathic constituents, both phenocrysts and
groundmass, become converted into a fine-grained sericite felt, while the quartz
remains ...
9
Geodynamics and Ore Deposit Evolution in Europe
... Volcanic and volcaniclastic rocks, sandstone regional faults Replacement of
sediments in pull-apart basins Major WNW—ESE shear bands and thrusts
Silicification Cone-shaped chloritization—sericitization of felsic volcanic rocks.
D. Blundell, N. Arndt, P.R. Cobbold,
2006
10
The Ajo Mining District, Arizona
In some rocks there are sparse flakes of sericite distributed through the
plagioclase, which is otherwise unaltered andesine. A complete series of
transitions can be found, from rocks that have undergone this mild sericitization to
others in which ...
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Avrupa Drills 57.35 Meters of 2.09 g/t Gold at Slivovo
Alteration, characterized by silicification, pyritization, sericitization, and decalcification, is focused in the pebble conglomerates. Late-stage formation of open ... «Junior Mining Network, 6월 15»
Alliance Files Plan of Operation for Exploration and Drilling Work at …
Ore concentration was oxidation and enrichment at near surface and the alteration is sericitization and argillization. The mine last produced in 1936 with no ... «GlobeNewswire, 6월 14»