V.L. Lomtev. GAS PRESENCE IN THE SEA­FLOOR OF THE NW PACIFIC

V.L. Lomtev 
Institute of Marine Geology and Geophysics, Far East Division, Russian Academy of Sciences, Yuzhno-Sakhalinsk, Russia
GAS PRESENCE IN THE SEA­FLOOR OF THE NW PACIFIC 
Signes of the gas­ & possibly oil presence in the Meso­Cenozoic, sedimentary­trapp cover of NW Pacific sea­floor (seaward of Kuril trench) are described from the results of oil­gas
geological interpre­tation of CDP 1 and seismic continuous profiles: «field» type anomaly, gas windows, columns and «threads « as zones of break or visible weakening of reflector
intensity. Probable sources of hydrocarbons and peculiarities of their thermogeneration are discussed (heat friction of glide). 
Key words: NW allochthonous plate, bed glide of layers 1­4 (oceanic crust), sedimentary­trap cover, gas and gas windows, columns, «threads», «field» type anomalies. 
References
1. Lomtev VL, Patrikeev VN, Nemchenko G.S. Seismic stratigraphy of the Cenozoic sedimentary cover of the NorthWest Plate of the Pacific Ocean // Structure and material
composition of the sedimentary cover of the Northwest Pacific. - Yuzhno Sakhalinsk: IMGiG FEB RAS, 1997. - P. 21-41.
2. Patrikeev VN, Lomtev V.L. Seismic stratigraphy of the NorthWest Pacific Plate on the MOGT profile // Ibid., P. 42-64.
3. Patrikeev VN, Lomtev VL, Nemchenko G.S. Seismic stratigraphy of the Mesozoic sedimentary cover of the NorthWest Plate of the Pacific Ocean // Ibid., P. 5-20.
4. Lomtev VL, Zhigulev VV, Kononov V.E., Ageev V.N. Possibilities of the method of continuous seismic profiling (NSP) in oil and gas exploration // Geodynamics, geology and oil
and gas content of sedimentary basins of the Far East of Russia. - Yuzhno Sakhalinsk: IMGiG FEB RAS, 2004. - P. 107-119.
5. Lomtev VL, Patrikeev VN, Sergeev KF and others. Pacifida, Tethys and Pacifik, "Ibid., pp. 131-144.
6. Lomtev V.L. Problems of the structure and history of the bed of the NW Pacific, // General and regional problems of tectonics and geodynamics. - Moscow: GEOS, 2007. T. 1. - S.
508-512.
7. Lomtev V.L. New data on tectonics and magmatism of the NW Pacific, // Geology and minerals of the World Ocean. - 2008. - №4. - P. 93-105.
8. Lomtev V.L. Signs of the gas content of the cover of the Tuscaror basin (NW Pacific) // Degassing of the Earth: geodynamics, geofluids, oil, gas and their parageneses. - Moscow:
GEOS, 2008. - pp. 285-288.
9. Lomtev VL, Kononov V.E., Gurinov M.G. ATZgiant and gas windows on the profile of the NSP No. 114 (NW Pacific) // Ibid., P. 291-293.
10. Lomtev V.L. Signs of the gas content of the Mesozoic Cenozoic cover of the NW Pacifika bed // Physics of the Geospheres: Seventh All-Russia. simp .: matl. dokl. - Vladivostok:
Dal'nauka, 2011. - P. 340-344.
11. Berezkin VM, Kirichek MA, Kunarev VV Application of geophysical methods for direct searches of oil and gas deposits. - Moscow: Nedra, 1979. - 223 p.
12. Medovsky IG, Mustafayev K.A. On the nature of "blind" zones during seismic exploration in the coastal regions of the Caspian Sea // Geophysical exploration for oil and gas. -
M., 1959. - P. 31-37.
13. Zhuravlev A.V. Possibilities of non-standard analysis of seismic materials for the search for minerals (on the example of the Okhotsk-Kuril region). - M .: VNIIOU and EPP, 1995.
- 43 p.
14. Zhiltsov A.M. The zones of gas saturation in the upper part of the sedimentary cover are a direct sign of the presence of hydrocarbon deposits at depth. The structure of the earth's
crust and prospects of oil and gas in the regions of the northwestern margin of the Pacific Ocean. - Yuzhno Sakhalinsk: IMGiG FEB RAS, 2000. T. 1. - P.76-92.
15. Lomtev VL, Torgashov K.Yu. Gas-bearing capacity of Neogene and Paleogene deposits of the western side of the Tatar trough (Sea of ​​Japan) // Geology and minerals World
ocean. - 2011. - No. 2. - P. 31-41.
16. Forecasting of oil and gas potential in water areas. - Moscow: Nedra, 1988. - 168 p.
17. Vasiliev BI The main features of the geological structure of the northwestern part of the Pacific Ocean. - Vladivostok: Far Eastern Branch of the Academy of Sciences of the
USSR, 1988. - 192 p.
18. Pichon, Le K., Francheta S., Bonnin J. Tectonics of plates. - Moscow: Mir, 1977. - 288 p.
19. Rudich E.M. Expanding oceans: facts and hypotheses. - Moscow: Nedra, 1984. - 251 p.
20. The structure of the bottom of the northwest of the Pacific Ocean (geophysics, magmatism, tectonics). - Moscow: Nauka, 1984. - 232 p.
21. Tectonics of the Kuril-Kamchatka deep-sea trench. - Moscow: Nauka, 1980. - 179 p.
22. Tectonics of the northwestern part of the Pacific Ocean. - Moscow: Nauka, 1983. - 118 p.
23. Hoshino M. Marine Geology. - Moscow: Nedra, 1986. - 432 p.
24. Choi D.R. Continental crust under the NW Pacific Basin // J. Petrol. Geol. - 1987. - Vol. 10, No. 4. P. 425-440.
25. Nagumo S., Kubo A. et. al. Report on DELP 1986 Cruises in the Northweather Pacific. Part III: Seismic structure revealed by explosion experiments // Bull. Earthq. Inst. Univ.
Tokyo. - 1990. - Vol. 65, Pt. 1. - P. 105-133.
26. Gettrust J.F., Furukawa K., Kroenke L.W. Crustal structure of the Shatsky rise from refraction measurements // J. Geophys. Res. - 1980. - Vol. B85. - P. 5411-5415.
27. Patrikeev V.N. Atlas of seismic sections of the NorthWest Plate of the Pacific Ocean. - Moscow: GEOS, 2009. - 207 p.