Class-book of GeologyMacmillan and Company, 1890 - 516 σελίδες |
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Σελίδα A-9
... sandstones , pressure solution is highly variable ( even on a millimeter scale ) and clearly was promoted by illitic grain coatings ( detrital and authigenic ) as well as finer grain sizes of detrital constituents ( Stackelberg , 1987 ) ...
... sandstones , pressure solution is highly variable ( even on a millimeter scale ) and clearly was promoted by illitic grain coatings ( detrital and authigenic ) as well as finer grain sizes of detrital constituents ( Stackelberg , 1987 ) ...
Σελίδα 109
... Sandstones of the Tar Sand triangle are primarily quartzarenite ( fig . 10 ) , whereas those of the Bullfrog area are subarkose ( fig . 11 ) ( Folk , 1980 ) . Outcrop sandstones from the Tar Sand triangle and Canyonlands are quartza ...
... Sandstones of the Tar Sand triangle are primarily quartzarenite ( fig . 10 ) , whereas those of the Bullfrog area are subarkose ( fig . 11 ) ( Folk , 1980 ) . Outcrop sandstones from the Tar Sand triangle and Canyonlands are quartza ...
Σελίδα 8
... Sandstones and marls , with , at the base Bottom Breccia Group : seen up to Marls and sandstones alternating ... ... Approximate thicknesses in feet . 220+ 130 80 8 ... 100 4 150 Sandstones , coarse , with conglomerates irregularly ...
... Sandstones and marls , with , at the base Bottom Breccia Group : seen up to Marls and sandstones alternating ... ... Approximate thicknesses in feet . 220+ 130 80 8 ... 100 4 150 Sandstones , coarse , with conglomerates irregularly ...
Σελίδα 15
... sandstones . Core permeability in the Aux Vases Sandstone ranges from 0.1 to about 250 mD and varies markedly at any given depth ( fig . 15 ) . Variations in permeability likely reflect differences in grain size , total cement volume ...
... sandstones . Core permeability in the Aux Vases Sandstone ranges from 0.1 to about 250 mD and varies markedly at any given depth ( fig . 15 ) . Variations in permeability likely reflect differences in grain size , total cement volume ...
Σελίδα 19
... sandstones of Virginia. American Association of Petroleum Geologists Bulletin 40, 489–500. McBride, E.F. (1989) Quartz cement in sandstones—a review. Earth ScienceReviews 26, 69–112. Morad, S. (1986) Albitization of K-feldspar grains in ...
... sandstones of Virginia. American Association of Petroleum Geologists Bulletin 40, 489–500. McBride, E.F. (1989) Quartz cement in sandstones—a review. Earth ScienceReviews 26, 69–112. Morad, S. (1986) Albitization of K-feldspar grains in ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
abundant accumulated acid Ammonites ancient Assistant Master beds BOOK bottom Brachiopods calcareous calcite Cambrian Cambridge carbonate of lime Carboniferous Chapter chiefly clay College containing corals Cretaceous crinoids crystalline crystals decay deposits detritus Devonian earth earth's crust Edited ELEMENTARY Eocene eruptive Europe evidence example extinct fauna Fcap feet fissures fossils genera GEOGRAPHY geological history glacier globe gradually granite gravel GREEK ground Illustrated Jurassic kinds known lakes land lava layers limestone living lower marine marls mass materials Mesozoic mineral Miocene molten mountains natural occur Old Red Sandstone organic remains original Palæozoic period Permian plants and animals Pliocene present preserved Prof Professor quartz Red Sandstone regions revised rivers rocks sand schists sediment sedimentary sedimentary rocks shales sheets shells siliceous Silurian soil solid sometimes species stone strata structure substance surface terrestrial Tertiary thick trace Triassic upper various vegetation volcanic
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