Rocks Classified and Described: A Treatise on LithologyLongmans, Green, and Company, 1866 - 425 páginas |
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Página xi
... Hornblende Group Schists indistinctly Crystalline CHAPTER III . SEDIMENTARY AND FRAGMENTAL ROCKS Argillaceous Group Marl Group · Limestone Group Gypsum and Anhydrite Fragmental Rocks Conglomerates 227 229 241 • 249 254 259 263 271 ...
... Hornblende Group Schists indistinctly Crystalline CHAPTER III . SEDIMENTARY AND FRAGMENTAL ROCKS Argillaceous Group Marl Group · Limestone Group Gypsum and Anhydrite Fragmental Rocks Conglomerates 227 229 241 • 249 254 259 263 271 ...
Página 2
... HORNBLENDE ( Amphibole ) , PYROXENE ( Augite ) , CALCSPAR , and DOLOMITE . The following occur less frequently : -CHLORITE , TALC , LEUCITE , NEPHELINE , OLIVINE , TOURMALINE , GARNET , GYPSUM , COAL , some SULPHURETS , and some IRON ...
... HORNBLENDE ( Amphibole ) , PYROXENE ( Augite ) , CALCSPAR , and DOLOMITE . The following occur less frequently : -CHLORITE , TALC , LEUCITE , NEPHELINE , OLIVINE , TOURMALINE , GARNET , GYPSUM , COAL , some SULPHURETS , and some IRON ...
Página 3
... hornblende ; hornblende and epidote . 2. On the other hand , quartz and augite appear each to exclude the presence of each other ; also ( according to Roth ) labradorite and hornblende ( ? ) . We are unable to pursue this important ...
... hornblende ; hornblende and epidote . 2. On the other hand , quartz and augite appear each to exclude the presence of each other ; also ( according to Roth ) labradorite and hornblende ( ? ) . We are unable to pursue this important ...
Página 12
... hornblende ; labradorite with pyroxene . On the other hand , we seldom or never find together : - the alkali felspars ( Nos . 4. 5 , 6 ) and the calcareous felspars ( Nos . 7 , 8 ) ; or orthoclase with pyroxene ; oligoclase with leucite ...
... hornblende ; labradorite with pyroxene . On the other hand , we seldom or never find together : - the alkali felspars ( Nos . 4. 5 , 6 ) and the calcareous felspars ( Nos . 7 , 8 ) ; or orthoclase with pyroxene ; oligoclase with leucite ...
Página 18
... hornblende , but the exterior form of augite . Crystals of this mineral occur in many greenstones ( uralite- porphyries ) . ( Predazzo . ) ( e ) Asbestus and amianthus are fibrous varieties of tremolite and actinolite . In the variety ...
... hornblende , but the exterior form of augite . Crystals of this mineral occur in many greenstones ( uralite- porphyries ) . ( Predazzo . ) ( e ) Asbestus and amianthus are fibrous varieties of tremolite and actinolite . In the variety ...
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Términos y frases comunes
aggregates Alps amygdaloidal aphanite appear argillaceous augite basalt beds bitumen brown Browncoal calcareous calcspar carbonate character chemical chlorite clay clay-slate Cleavage coal colour Colourless columnar compact composition compound conchoidal to uneven consists contains Crown 8vo crystalline schists crystals decomposed deposits diabase diorite dolerite dolomite earth Edition felsitic felspar fibrous fine-grained foliated formation fossils Fracture conchoidal frequently fuses garnet geodes geol geological Germ gneiss grains granite granular grav greenstones grey gypsum hornblende igneous rocks imbedded iron Jahrb labradorite lavas leucite lime limestone Lustre vitreous magnesia magnetic iron-ore marl mass massive matrass matrix melaphyre metamorphic mica mica-schist mineral muriatic acid occurs oligoclase opaque origin orthoclase oxide plutonic porphyritic pyrites pyroxene quartz quartz-porphyry resinous rock-salt sandstone Saxony schists sedimentary rocks serpentine shale silica slaty soluble sometimes strata sulphuric surface syenite texture trachyte transition translucent transmutation Transparent tufa usually varieties veins vesicular cavities volcanic Woodcuts
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