| 1 | However, the unconformity may cause caprock damage and affect the maturity of hydrocarbon source rocks. | |
| 2 | The caprock of the hard Slick Rock Member of the Entrada Sandstone is perched upon a pedestal of mudstone. | |
| 3 | The Neogene witnessed the development of secondary petroleum accumulations dominated by drape anticline accumulations and good regional cap rocks in the basin . | |
| 4 | The concept of this self-sealing process broadens the likelihood of cap rocks with low permeability occurring in volcanic areas. | |
| 5 | The Upper Jurassic , Cretaceous and Quaternary sediments are mostly siliciclastic and have the character of platform cover. |