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.
References in periodicals archive ?
and angular quartz fields that subcrop and are aligned with east-west to west-northwest lineaments.
Copper-gold mineralization extends from shallow subcrop to greater than 400 m to 600 m depth.
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.
Element of Rare or Geodiversity Common Management aims Rocks & Rare Maintain integrity of outcrop and subcrop.
Some interpretations, however, assign at least parts of the Cretaceous subcrop to the basal Iowa Group (Mississippian).
6) is closely correlated with the subcrop of the Weardale Granite (although the intrusion of the granite predates the mineralization) and fluid inclusion studies show that orebodies within the fluorite zone were generally deposited at a higher temperature than those in the barium zone.
Subcrop patterns of the Point aux Chenes Shale and the Mackinac Breccia remain similar on each geologic map.