日本における石油地質学の進歩  [in Japanese] Advance of petroleum geology in Japan  [in Japanese]

A large amount of geochemical data concerning the origin of oil deposits come to light during the 1970's. As a result, it has come to be accepted by many researchers that oil was generated in the later stage of diagenesis. Regarding reservoir geology, new informations on the turbidite sand reservoirs and volcanic rock reservoirs were added to the petroleum geology in Japan. As for technology in exploration, the information on subsurface geology increased remarkably with the introduction of modern geophysical tools. Meanwhile, with the advance of oil exploration in the offshore areas, new sedimentary basins were discovered, and many new geological information became available.