10 LIVRES EN ANGLAIS EN RAPPORT AVEC «SUBVITREOUS»
Découvrez l'usage de
subvitreous dans la sélection bibliographique suivante. Des livres en rapport avec
subvitreous et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Geology and Mineral Deposits of the St. Regis-Superior Area, ...
Weathered rocks have pale-lavender tint 450 Quartzlte, thin- to medium-bedded,
subvitreous, grayish red-purple to light brownish-gray containing many thin, pink
or purple laminae. Brown-weathering, grayish-pink, dolomitic quartzlte lenses 1 ...
Arthur Byron Campbell, 1960
2
Geology and Mineral Deposits of the Twin Crags Quadrangle Idaho
St. Regis formation: *•'' Qnartzite, generally subvitreous, but some vitreous beds ;
light-gray to light greenish gray ; a few beds slightly purple ; beds range from 2 to
30 inches thick; many beds contain numerous iron oxide spots on weathered ...
Arthur Byron Campbell, Stanley E. Good, 1963
3
U.S. Geological Survey professional paper
Locally it becomes denser and subvitreous, containing little or no micaceous
matter visible to the unaided eye. Subunit 2, about 4 feet thick, is a fine-grained
fairly well sorted highly calcareous gritty quartz sandstone changing here and
there to ...
Geological Survey (U.S.), 1965
50m'. Cohm'm. Submemllic. Subvitreous. light reflection Pirchy Silky. pea rly.
satiny. T \ / mlxy. greasy. resinous No coherent Dull .... “or .... ..earrhy light
reflection Luster is broadly subdivided into metallic and non-metallic lusters (
Figure Q).
Kevin Hefferan, John O'Brien, 2010
5
Norsk Geologisk Tidsskrift
12)1 8. grayish black actinolite gneiss with sporadic 2—4 mm thick greenish
black bands grayish olive green chlorite schist pinkish gray to light brownish gray
laminated subvitreous feldspar-bearing quartzite similar to no. 7. dark gray
quartzite ...
6
Bulletin - United States Geological Survey
Quartzite. very-ligr^gray to grayish-orange, subvitreous, fine- to coarse-grained;
pebble layer near top; scattered white clay grains, probably altered feldspar.
Thick bedded, some cross-lsmination. Quartzite, pinkish-gray, grayish-red, ...
Geological Survey (U.S.), 1990
7
Systematic Mineralogy of Uranium and Thorium
Varieties containing quadrivalent uranium are black, with a subvitreous luster,
and are relatively hard (*»5V2) ; these usually are alteration pseudomorphs after
thorite. The luster of the light-colored types varies from dull to subvitreous.
8
Soil Genesis, Classification Survey and Evaluation
It is of white or gray colour and subvitreous to pearly lustre, 6 hardness and 2.66
specific gravity. It occurs in intermediate igneous rocks like andesite and diorite. 8
. Labradorite Its cleavage is same as that of albite. It is gray, dark ashy, brown, ...
9
New Zealand Journal of Geology and Geophysics
Zonation in the Maraetai Ignimbrite At the type section, Maraetai, the base
consists of 5 ft of grey, hyaline, partly welded vitric tuff, grading upward from ash
to subvitreous welded tuff and glass 3 ft thick. The glass, in turn, grades upward
through ...
10
Geological Survey professional paper
Lake City quadrangle, head of Fall Creek on west side of stream entering at an
altitude of 11,7.50 ft, at an altitude of 12,500 ft A dense black rock with a
subvitreous luster. It is seriate porphyritlc with pheno- crysis from 3 mm long to
very small.
Geological Survey (U.S.), Geological Survey (U.S.). Geographic Names Information Management, 1956
ACTUALITÉS CONTENANT LE TERME «SUBVITREOUS»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
subvitreous est employé dans le contexte des actualités suivantes.
Why is Turquoise Becoming Rarer and More Valuable Than …
Its natural color ranges from sky blue to yellow-green and its luster from waxy to subvitreous. The mineral is typically found in arid climates—major regions ... «Smithsonian, nov 14»
