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Books Bücher 1 - 4 von 4 in BOULDER QUARRY. One in which the joints are either so close or so irregular that...
" BOULDER QUARRY. One in which the joints are either so close or so irregular that no very large blocks of stone can be quarried. CHANNEL. A narrow artificial incision across a mass of rock, which, in the case of a granite sheet, is made either by a series... "
Bulletin - United States Geological Survey - Seite 186
von Geological Survey (U.S.) - 1907
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Report of the State Geologist on the Mineral Industries and Geology ..., Band 7

Vermont. State Geologist - 1910
...Quarryraen's term for incipient joints. BOWLDER QUARRY. One in which the joints are either so cloie or so irregular that no very large blocks of stone...contiguous drill holes or by blasting a series of he>les arranged in zigzag order. CLEAVAGE, when applied to a mineral, designates a structure consequent...
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Report of the State Geologist on the Mineral Industries and Geology ..., Band 7

Vermont. State Geologist - 1910
...BLIND SEAMS. Quarrymen 's term for incipient joints. BOWLDER QUARRY. One in which the joints are cither so close or so irregular that no very large blocks...in the case of a granite sheet, is made either by a serifs of contiguous drill holes or by blasting a series of holes arranged in zigzag order. CLEAVAGE,...
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History of the Granite Industry of New England, Band 1

Arthur Wellington Brayley - 1913
...HORSE — A dark biotite gneiss in contact with the granite. BLIND SEAMS — Incipient joints. BOULDER QUARRY — One in which the joints are either so close...of a granite sheet, is made either by a series of continuous drill holes or by blasting a series of holes arranged in zizzag order. CLEAVAGE — A structure...
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Congressional Serial Set

1907
...a high percentage of silica. BANK;. A term applied to rocks in which the iron-magnesia minerals nnd feldspars with lime and soda predominate, such as...blasting a series of holes arranged In zigzag order. CI.EAVAGE, when applied to a mineral, designates a structure consequent upon the geometrical arrangement...
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