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Glacial overburden
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
Glacial-drift materials overlying bedrock. see glacial drift.
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Glacial, английский
- Excruciatingly slow, inspired by the inch per year movement of glaciers example
- (adjective) (a) of or relating to the presence and activities of ice and glaciers, as in glacial erosion. (b) pertaining to distinctive features and materials produced by or derived from glaciers and ice sheets, as in glacial lakes. (c) pertaining to an ice age or region of glaciation. gg part 629 - glossary 629-36 (430-vi-nssh, 2008)
- Striation/striae striation of bedrock caused by the movement of glacier containing
Glacial, английский
Glacial abrasion, английский
A copmmon mechanical weathering process where rock and debris frozen into the sides and bottom of a glacier act like sandpaper and wear down the bedrock the glacier is mocing across.
Glacial acetic acid, английский
Glacial action, английский
Glacial advance, английский
Glacial circuses, английский
Glacial deposits, английский
Glacial drainage channel, английский
A channel formed by an ice-marginal, englacial, or subglacial stream during glaciation. gg
Glacial drift, английский
The rock material, such as boulders, till, gravel, sand, or clay, transported and deposited by a glacier.
Glacial epoch, английский
Glacial erosion, английский
Glacial ghost, английский
The whaler hope had chased a quarry as far as the ice cliffs of antarctica where it managed to give them the slip. they were about to sail away in search of other prey when the great ice barrier began to break up and calve. large chunks fell away opening up several chasms. suddenly, to the horror of hope’s crew, a spectral ship sailed out of one of the inlets, sails in tatters and hull splintered, with seven ice-encrusted human figures standing or sitting on deck. quelling his crew’s terrified mutterings of “flying dutchman,” captain brighton ordered a whaleboat to be launched and rowed across to the “phantom.” in the master’s cabin he found a man sitting at his desk, pen in hand, apparently entering something in the log book. he was, however, as solidly flash-frozen as the men on deck and his wife in the next door cabin. his final entry in the log read “no food for 71 days. i am the only one left alive,” and the date of may 4, 1823, indicated that the schooner jenny had been trapped in the ice for thirty-seven and one-half years.
Glacial groove, английский
A deep, wide, usually straight furrow cut in bedrock by the abrasive action of a rock fragment embedded in the bottom of a moving glacier; it is larger and deeper than a glacial striation, ranging in size from a deep scratch to a small glacial valley. compare - flute. gg
Glacial ice, английский
Naturally occurring ice which exhibits internal plastic flow and deformation.
Glacial kara, английский
Glacial marl, английский
Glacial period, английский
Glacial polish, английский
Polished bedrock surfaces left behind after melting of glacial ice. the polishing is probably due to very fine grained rock flour carried at the base of the ice.
Glacial quarrying (plucking), английский
A common mechanical weathering process in alpine glaciated terrain where glacial ice frozen into cracks in the bedrock literally "pluck" rock material from the valley floor.
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Grout machine, английский
Grouting machine. a mechanism by which grout may be pressure-injected into a grout hole. the machine is essentially a closable cylindrical container large enough to hold the neat cement slurry made with one bag of cement. the slurry is placed inside the container and compressed air or steam allowed to enter the top of the container forcing the slurry out of the bottom of the container through a quick-opening plug valve into the grout pipe and grout hole. the process is intermittent, requiring the refilling of the container after each batch of slurry has been ejected. compare grout injector 2.
Test hole, английский
Generally, any borehole drilled to obtain samples whereby the structural and physical characteristics of the rocks penetrated can be determined ; more specifically, a hole produced by rotary or driving soil-testing tools in the course of obtaining samples used in soil and foundation-testing work.
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