Oxidized, reddish, vesicle rich, mafic lapilli that pile up to form cinder cones are called ________.

Question

Quizplus · Accepted Answer

Scoria is a mafic volcanic rock that forms as gas-rich magma is explosively ejected from a volcano. It is composed of vesicles (holes) and solidified lava fragments, which are often reddish in color due to oxidation. When scoria accumulates around a volcanic vent, it forms cinder cones. Blocks and bombs are also volcanic ejecta, but they are generally larger and more irregular in shape. Pumice is a lightweight volcanic rock that floats on water, and it is often found in pyroclastic deposits from explosive eruptions.

Oxidized, Reddish, Vesicle Rich, Mafic Lapilli That Pile Up to Form