flow rock

flow rock

[′flō ‚räk]
(petrology)
An igneous rock that had been liquid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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A complete system includes a Roughneck air hammer, straight and offset bits, control station/ oiler with integrated electronic controls, drill conversion kit including hoses and fittings, hydraulic breakout tooling and a universal HD high flow rock drill housing that uses the industry standard API thread to make system connection easy.
This rock that spans the compositional fields of both andesite and dacite (see examples on page 92) has less silica than the dacite of block F, but it is also a volcanic flow rock. A distinctive rock, it can be characterized as containing abundant, larger feldspar crystals (18%-27%) set in a medium to dark gray and even blackish matrix that is very fine grained and sometimes glassy.
The Irish band are masters of hazy, sonic ebb and flow rock complete with soothing vocals and long, meandering instrumental breaks.
Designed to work in tandem with the new TRIHAWK EXTREME universal high flow rock drill housing, the ROUGHNECK expands the capabilities of the TRIHAWK rock drill head lineup to encompass nearly every soil and rock condition you may face in the field without changing out the housing.