Alteration and migration process of organic matter in hydrothermal systems and implications for metallogenesis

摘要: Organic matter in hydrothermal rift systems, as contemporary sedimentary basins, is usually of a marine and generally Recent (sometimes geologically old) origin (Simoneit, 1982a, 1983). It derived from the syngenetic residues posthumus biogenic debris-composed autochthonous detritus minor allochthonous brought continental sources The interaction this organic with high temperature fluids generates migrates petroleum or bitumen. similarities differences between petroleums conventional reservoir are summarized Table 1. major distinguishing feature that have an enhanced content unsubstituted aromatic hydrocarbons.