Question

economic accumulation of petroleum only occurs in which type of geological basins? magma volcanic sedimentary molten

Explanation:

Petroleum is formed from the remains of organic matter (such as plankton and algae) that accumulate in sedimentary basins. Over time, with burial, heat, and pressure, these organic materials are transformed into hydrocarbons (petroleum). Magma and molten refer to extremely hot, liquid - like rock materials which are not the environment for petroleum formation. Volcanic basins are related to volcanic activity and are not the primary setting for the economic accumulation of petroleum compared to sedimentary basins. Sedimentary basins provide the right conditions (such as burial of organic - rich sediments, appropriate temperature and pressure gradients over geological time) for the generation, migration, and accumulation of petroleum in commercially viable quantities.

Answer:

sedimentary