Learner's definition of DOMINANT. 1. [more dominant; most dominant] : more important, powerful, or successful than most or all others. The university has/plays a dominant [=major] role in the local economy. Money is the dominant [=main] force in consumer societies. The company is now dominant in its market.
Shale is a fine-grained sedimentary rock that can have high porosity, yet can be nearly impermeable due to the poorly interconnected voids.hale is a fine-grained sedimentary rock that can have high porosity, yet can be nearly impermeable due to the poorly interconnected voids.
Sedimentary Rocks are formed when sediments have been deposited and undergone lithification, a process that includes compaction(through burial) and cementation (mineral precipitation from intergranular aqueous solutions), or when masses of intergrown crystals precipitate from aqueous solution.