Definition of cap rock in English:
A layer of hard, impervious rock overlying and often sealing in a deposit of oil, gas, or coal.
- In some instances the alteration is so intense that all that remains of the host is a porous siliceous cap rock.
- The cap rock of some domes contains economic concentrations of sulfur that are extracted as a melt by the Frasch Process.
- Both species occur in the uppermost cap rock layer of the Upper Albian Boracho Formation northeast of Ft. Stockton, Pecos County, Texas.
Definition of cap rock in:
- British & World English dictionary
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