Petroleum Geology of the Southern Continental Margin of the Black Sea
Naci Görür, Okan Tüysüz, 1997. "Petroleum Geology of the Southern Continental Margin of the Black Sea", Regional and Petroleum Geology of the Black Sea and Surrounding Region, A. G. Robinson
Download citation file:
The southern continental margin of the Black Sea back-arc basin is represented predominantly by a thick clastic sequence of Aptian to Recent age. Potential source, reservoir, and cap rocks are common in various Stratigraphic levels of this sequence. The most prospective source and reservoir rocks appear to have been deposited in the synrift stage of the basin. During this stage, the rift trough was probably relatively shallow and restricted from free interchange with the Neotethys Ocean in the south. During the postrift stage, a thick sequence of volcaniclastic turbidites and subordinate pelagic limestones, with limited source and reservoir potential, accumulated. This accumulation was interrupted at the end of the early Eocene by compressional tectonics, which resulted from the closure of the Neotethys. The postrift sedimentation probably carried the earlier source rocks into the hydrocarbon generation window, while the Eocene compressional tectonics generated the main prospective traps.
Figures & Tables
Regional and Petroleum Geology of the Black Sea and Surrounding Region
In 1967 and 1969, two oceanographic cruises were made in the Black Sea under the guidance of the Woods Hole Oceanographic Institute: The cruises included scientists from many countries and disciplines. Their aims were to determine the recent geological and geochemical evolution of the Black Sea, to map the shallow structure of the basin, and to study the interaction between the oxidized surface waters and the anoxic waters beneath them. The results were published 23 years ago, as AAPG Memoir 20 (Ross and Degens, 1974). During the 1969 cruise, the vessel Atlantis II collected 40 piston cores, which formed the basis of most of the subsequent geological studies that were restricted to very recent sedimentation. Speculations concerning the origin of the basin and the relationship of the geology offshore to that exposed around the margins of the Black Sea were rooted in pre-plate tectonic concepts of basin formation and were in any case hampered by a lack of relevant data (Brinkmann, 1974).
In 1976, the Glomar Challenger visited the Black Sea on Leg 42B of the Deep Sea Drilling Project and drilled and cored three deep-water sites (379, 380, and 381). Well 381 north of the Bosporus encountered sediments as old as Miocene, including some apparently deposited in shallow water (Ross, 1978).
The next major volume in Western literature to deal with the Black Sea was published a decade later, collecting papers presented two years earlier at a conference in Yalta. In this volume, a number of seismic reflection lines