caprock
Noun
Meaning
caprock (countable and uncountable, plural caprocks)
(geology) A harder or more resistant rock type overlying a weaker or less resistant rock type.
Examples
CAPROCK Group Inc. lessened its holdings in shares of Huntington Bancshares Incorporated (NASDAQ:HBAN) by 70.9% during the third quarter, according to the company in its most recent filing with the Securities and Exchange Commission (SEC).
In time, the river eroded the soft layer that supported the hard layers, undercutting the hard caprock, which gave way in great chunks.
The aerial photo on the right clearly shows the hard caprock, the Lockport Formation (Middle Silurian ), which underlies the rapids above the falls, and approximately the upper third of the high gorge wall.
CAPROCK Group Inc. increased its stake in AstraZeneca by 42.0% in the 1st quarter.