Bituminous substances in metalliferous sediments from the region of the triple junction in the Indian Ocean were studied. Specific peculiarities of their structure confirming location in "hot conditions" were revealed. Hydrocarbons are genetically connected with hydrothermal matter, and thus they could be considered as a geochemical indicator of hydrothermal processes in the ocean.
Supplement to: Chernova, Tatyana G; Pykovskiy, YuI; Ogloblina, A I; Alekseeva, T A (1994): Geochemistry of bituminous substances in the sediment of triple junction ridges of the Indian Ocean. Oceanology, 33(5), 604-607