A black,organic-rich shale could likely serve as either of which two necessary types of rocks within oil fields?
A) source rock or seal rock
B) reservoir rock or seal rock
C) source rock or reservoir rock
D) reservoir rock or trap rock

Question

Quizplus · Accepted Answer

Black, organic-rich shale can serve as a source rock due to its high organic content, which can generate hydrocarbons under the right conditions. It can also act as a seal rock because its fine-grained, impermeable nature can trap hydrocarbons in underlying reservoir rocks, preventing them from escaping to the surface.

A Black,organic-Rich Shale Could Likely Serve as Either of Which