Principles of Stratigraphy
Principles of Stratigraphy
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In our eReader you can find the full English version of the book. Read Principles of Stratigraphy Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Principles of Stratigraphy
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05 he calls coarse silt, from 0. 05 to 0. 025 medium silt, from the last to 0. 005 mm. Fine silt, and below that to o. Ooi mm. Colloidal clay. Orth, Laufer, etc. , call 0. 05 to o. Oi mm. Dust, and everything below that finest dust. Wollny calls fragments from 5 to 2 mm. Medium gravel, from 10 to 5 coarse gravel and above 10 mm. Stones.
Thoulet has given these dimensions, gravel: coarse, 9. 0 mm. ; medium 4. 5 mm. ; fine 3. 0 mm. ; sand: coarse (a) 1. 32 mm. , (b) 0. 89; medium (a) 0. 67, (b) 0.... 54, (c) 0. 45 ; fine (a) 0. 39, (b) 0. 34, (c) 0. 30, (d) 0. 26 mm. ; very fine 0. 04 mm. Silt below 0. 04 mm. * It will be seen that Crosby and Thoulet differ most from the others, and also from each other. Their definite sizes are less sat- isfactory than the ranges given by the others. F Types of Sands Based on Origin.
Sherzer (26) has recently proposed to subdivide sands according to their mode of origin into 7 groups, each with a number of sub- groups. They are herewith given, separated into clastic and non- clastic sands, and each is referred to its proper place in the classifi- cation adopted in this book.
What to read after Principles of Stratigraphy?
You can find similar books in the "Read Also" column, or choose other free books by Grabau, Amadeus W. (Amadeus William), 1870-1946 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
05 he calls coarse silt, from 0. 05 to 0. 025 medium silt, from the last to 0. 005 mm. Fine silt, and below that to o. Ooi mm. Colloidal clay. Orth, Laufer, etc. , call 0. 05 to o. Oi mm. Dust, and everything below that finest dust. Wollny calls fragments from 5 to 2 mm. Medium gravel, from 10 to 5 coarse gravel and above 10 mm. Stones.
Thoulet has given these dimensions, gravel: coarse, 9. 0 mm. ; medium 4. 5 mm. ; fine 3. 0 mm. ; sand: coarse (a) 1. 32 mm. , (b) 0. 89; medium (a) 0. 67, (b) 0.... 54, (c) 0. 45 ; fine (a) 0. 39, (b) 0. 34, (c) 0. 30, (d) 0. 26 mm. ; very fine 0. 04 mm. Silt below 0. 04 mm. * It will be seen that Crosby and Thoulet differ most from the others, and also from each other. Their definite sizes are less sat- isfactory than the ranges given by the others. F Types of Sands Based on Origin.
Sherzer (26) has recently proposed to subdivide sands according to their mode of origin into 7 groups, each with a number of sub- groups. They are herewith given, separated into clastic and non- clastic sands, and each is referred to its proper place in the classifi- cation adopted in this book.
What to read after Principles of Stratigraphy?
You can find similar books in the "Read Also" column, or choose other free books by Grabau, Amadeus W. (Amadeus William), 1870-1946 to read onlineMoreLess
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