subcrop

subcrop

[′səb‚kräp]
(geology)
An occurrence of strata beneath the subsurface of an inclusive stratigraphic unit that succeeds an unconformity on which there is marked overstep.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The resource is open in all directions and is clearly part of a much larger set of veins that extent for over 7 km strike in outcrop, subcrop, and the subsurface.
The zone reappears in roadbed subcrop approximately 200 meters to the north, where additional mineralized phases are readily apparent, including strongly quartz-sericite-pyrite altered feldspar-biotite porphyry with relict potassic alteration in the form of chalcopyrite after mafic phenocrysts.
Isolated lenses of fresh water reach depths of up to 350 m within confined aquifers that subcrop in the model domain (Figure 4(c)).
Identical facies, and hence the Partridge Island Member, outcrop and subcrop over a large area, and there are no places the member is absent (except very locally due to faults).
It is very well exposed in the southern part of East Central and Eastern Salt Range and has its subcrop extension in the Potwar also.
The lateral extent and risk in the north and updip in the east is dependent upon an adequate seal being evident between the subcrop and unconformity at the base of the lower Grant formation (our geological/geophysical team considers that there is the likelihood of a lower Grant shaley member within the channel non-conformity).
The 3D methodological approach followed was not only the basis for the integration of the surface and subsurface data but was also the basis for the construction of the subcrop geological map below the Quaternary sediments at the southern edge of the hills.
The Campanario Project has returned significant gold grades, including 18 rock-chip samples of subcrop and float ranging from 0.007 to 3.59 g/t gold and averaging at 0.41 g/t gold.
Element of Rare or Geodiversity Common Management aims Rocks & Rare Maintain integrity of outcrop and subcrop. Minerals Remove samples for curation.