__________ is\are accumulations of lava that cover extensive geographic areas.

Question

Quizplus · Accepted Answer

Flood basalts are accumulations of lava that cover extensive geographic areas, often formed by the eruption of large volume of basaltic magma from rift zones or mantle plumes. Option A, columnar jointing, refers to a specific type of cooling pattern that forms hexagonal columns in igneous rocks. Option C, a caldera, is a large volcanic crater typically formed by the collapse of land following a volcanic eruption. Option D, a large igneous province, refers to a region that is characterized by repeated, large-volume volcanic eruptions over a relatively short period of geologic time, resulting in extensive areas of igneous rocks.

__________ Is\are Accumulations of Lava That Cover Extensive Geographic Areas