Mariniteとは 意味・読み方・使い方

Marinite is a gray to dark-gray to black oil shale of marine origin in which the chief organic components are lamalginite and bituminite derived from marine phytoplankton with varied admixtures of bitumen, telalginite, and vitrinite. Marinite deposits are most abundant and largest oil shale deposits; they are generally widespread covering large areas, but at they same time they are relatively thin and economically low-grade. Typical environment for marinite deposits formation are epeiric seas such as on broad shallow marine shelves or inland seas where wave action is restricted and currents are minimal.