In shaft-sinking, the crosspieces holding the walling apart.
Stauffer
See:stretch thrust
A little-used term for a reverse fault formed by shear in the inverted
limb of an overturned fold. Syn:stretch fault
a. One of a series of parallel straight lines on the surface of a crystal,
as in pyrite, indicative of an oscillation between two crystal forms;
also, one of a series of such lines on the cleavage planes of a mineral,
as of plagioclase, calcite, or corundum, indicative of polysynthetic
twinning. Syn:striation
b. Striation. AGI
c. A minute groove or channel; a threadlike line or narrow band (as of
color) esp. when one of a series of parallel grooves or lines, such as
glacial stria. Webster 3rd
a. A line or furrow generally seen on the walls of a lode or fault.
Gordon
b. Plural of stria. AGI
Adj. of striation.
A cleavage surface grooved with striae, e.g., plagioclase.
A crystal face grooved with striae; e.g., pyrite or quartz.
a. See:stria
b. One of multiple scratches or minute lines, generally parallel,
inscribed on a rock surface by a geologic agent, i.e., glaciers, streams,
or faulting. Syn:scratch
c. The condition of being striated; the disposition of striations.--Adj:
striated; striate. AGI
a. A spirit level so mounted that it can be placed astride a surveying
instrument and so supported that it can be used for precise leveling of
the horizontal axis of the instrument or for measuring any remaining
inclination of the horizontal axis. AGI
b. A demountable spirit level that can be attached to the telescope tube
to level the line of sight. AGI
a. The course or bearing of the outcrop of an inclined bed, vein, or fault
plane on a level surface; the direction of a horizontal line perpendicular
to the direction of the dip. CF:direction of strata; trace; trend.
b. v. To find a vein of ore. n. A valuable discovery. Webster 3rd
c. See:course; level course; fault strike.
d. To withdraw supports. See also:line of bearing
Syn:strike a lead
See:strike
In separating blocks of stone in a quarry, the cut that is parallel to the
strike of the rock strata.
A fault whose strike is parallel to the strike of the strata.
CF:dip fault; oblique fault.
In a fault, the shift or relative displacement of the rock units parallel
to the strike of the fault, but outside the fault zone itself; a partial
syn. of strike slip. See also:shift
a. In a fault, the component of the movement or slip that is parallel to
the strike of the fault. CF:dip slip; oblique slip.
Syn:horizontal displacement; horizontal separation. Partial syn: strike
shift. AGI
b. A horizontal component of the slip parallel with the fault strike.
Schieferdecker
a. A fault on which the movement is parallel to the fault's strike.
CF:dip-slip fault
Syn:strike-shift fault
b. A fault in which the net slip is practically in the direction of the
fault strike. Syn:transcurrent fault
A valley eroded in and parallel to the strike of the underlying rocks of a
region. Syn:longitudinal valley
Where the dip of the coal seam is about 1 in 10 or less, the opencast
method of working usually employed is to excavate along lines parallel to
the outcrop. This is termed the strike or opencast method.
See also:box-cut method
Electrodepositing, under special conditions, a very thin film of metal
that will facilitate further plating with another metal or with the same
metal under different conditions. ASM, 1