...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...

...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,...

...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...

...iron-magnesia minerals and feldspars with lime and soda predominate, such as diabase or basalts. 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 zigzag order. CLEAVAGE, when applied...

...minerals and feldspars with lime and soda predominate, such as diabase or basalts. BOUUJER C.UARRY. One in which the joints are either so close or so...of a granite sheet, is made either by a series of continuous drill holes or by blasting a series of holes arranged in zigzag order. CLEAVAGE, when applied...

...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...