High-Resolution Seismic Characterization of Shallow Gas Accumulations in the Southern Shelf of Marmara Sea, Turkey

• Autorzy: Vardar D. , Alpar B.

Identyfikatory

DOI

10.1515/acgeo-2015-0059

• Języki publikacji: EN

Abstrakty

EN

High-resolution seismic survey was conducted to investigate acoustic characteristics of gassy sediments along the southern shelf of the Sea of Marmara. The acoustic turbidity zones outlined within the study area are generally below 2-9 m (2-10 ms TWT) the seafloor whilst this vertical distance varies between 9 and 21 m (10-25 ms TWT) for acoustic blanket type reflections. The gassy sediments cover an area of sea floor of about 45, 110, and 75 km2 in front of Gönen River, Kocasu River, and Gemlik Bay, respectively. The gassy sediments in the center of Gemlik Bay exhibited an elliptical geometry similar to its basin while the others have deltaic forms in front of the rivers. The sea bottom and near surface sedimentary units are made-up of organic-rich sediments, mostly transported by the southern rivers. The gas observed in sediments is thought to be of biogenic origin, which may be caused by degradation of organic matter in the sediment.

Słowa kluczowe

EN

gas; Marmara Sea; acoustic properties; high resolution seismic; pockmark

PL

gaz; Morze Marmara; właściwości akustyczne; badania sejsmiczne o podwyższonej rozdzielczości

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2016
• Tom: Vol. 64, no. 3
• Strony: 589--609
• Opis fizyczny: Bibliogr. 69 poz.

Twórcy

autor

Vardar D.

• Institute of Marine Sciences and Management, İstanbul University, İstanbul, Turkey

autor

Alpar B.

• Institute of Marine Sciences and Management, İstanbul University, İstanbul, Turkey

Bibliografia

• Abegg, F., and A.L. Anderson (1997), The acoustic turbid layer in muddy sediments of Eckernförde Bay, Western Baltic: methane concentration, saturation and bubble characteristics, Mar. Geol. 137, 1-2, 137-147, DOI: 10.1016/S0025- 3227(96)00084-9.
• Aksu, A.E., R.N. Hiscott, and D. Yaşar (1999), Oscillating Quaternary water levels of the Marmara Sea and vigorous outflow into the Aegean Sea from the Marmara Sea – Black Sea drainage corridor, Mar. Geol. 153,1-4, 275-302, DOI: 10.1016/S0025-3227(98)00078-4.
• Alpar, B. (1999), Underwater signatures of the Kocaeli earthquake (August 17th 1999), Turk. J. Mar. Sci. 5, 3, 111-130.
• Alpar, B., H. Yüce, and E. Doğan (1996), Gas-charged late Quaternary sediments in Strait of Çanakkale (Dardanelles), Turk. J. Mar. Sci. 2, 3, 155-169.
• Altınok, Y., and B. Alpar (2006), Marmara Island earthquakes, of 1265 and 1935; Turkey, Nat. Hazards Earth Syst. Sci. 6, 6, 999-1006, DOI: 10.5194/nhess- 6-999-2006.
• Armijo, R., N. Pondard, B. Meyer, G. Uçarkus, B.M. de Lépinay, J. Malavieille, S. Dominguez, M.-A. Gustcher, S. Schmidt, C. Beck, N. Çağatay, Z. Çakır, C. İmren, K. Eris, B. Natalin, S. Özalaybey, L. Tolun, I. Lefèvre, L. Seeber, L. Gasperini, C. Rangin, O. Emre, and K. Sarıkavak (2005), Submarine fault scarps in the Sea of Marmara pull-apart (North Anatolian Fault)” Implications for seismic hazard in Istanbul, Geochem. Geophys. Geosyst. 6, 6, Q06009, DOI: 10.1029/2004GC000896.
• Balkıs, N., and M.N. Çağatay (2001), Factors controlling metal distributions in the surface sediments of the Erdek Bay, Sea of Marmara, Turkey, Environ. Int. 27, 1, 1-13, DOI: 10.1016/S0160-4120(01)00044-7.
• Baltzer, A., B. Tessier, H. Nouzé, R. Bates, C. Moore, and D. Menier (2005), Seistec seismic profiles: A tool to differentiate gas signatures, Mar. Geophys. Res. 26, 2-4, 235-245, DOI: 10.1007/s11001-005-3721-x.
• Bange, H.W., S. Rapsomanikis, and M.O. Andreae (1996), The Aegean Sea as a source of atmospheric nitrous oxide and methane, Mar. Chem. 53, 1-2, 41- 49, DOI: 10.1016/0304-4203(96)00011-4.
• Baraza, J., and G. Ercilla (1996), Gas-charged sediments and large pockmark-like features on the Gulf of Cadiz slope (SW Spain), Mar. Petrol. Geol. 13, 2, 253-261, DOI: 10.1016/0264-8172(95)00058-5.
• Barka, A.A., and K. Kadinsky-Cade (1988), Strike-slip fault geometry in Turkey and its influence on earthquake activity, Tectonics 7, 3, 663-684, DOI: 10.1029/ TC007i003p00663.
• Bourry, C., B. Chazallon, J.L. Charlou, J.P. Donval, L. Ruffine, P. Henry, L. Geli, M.N. Çağatay, S. Inan, and M. Moreau (2009), Free gas and gas hydrates from the Sea of Marmara, Turkey: Chemical and structural characterization, Chem. Geol. 264, 1-4, 197-206, DOI: 10.1016/j.chemgeo.2009.03.007.
• Çağatay, M.N., O. Algan, M. Sakınç, C.J. Eastoe, L. Egesel, N. Balkıs, D. Ongan, and H. Caner (1999), A mid-late Holocene sapropelic sediment unit from the southern Marmara sea shelf and its palaeoceanographic significance, Quat. Sci. Rev. 18, 4-5, 531-540, DOI: 10.1016/S0277-3791(98)00094-8.
• Çağatay, M.N., M. Özcan, and E. Güngör (2004), Pore-water and sediment geochemistry in the Marmara Sea (Turkey): early diagenesis and diffusive fluxes, Geochem. Explor. Environ. Anal. 4, 3, 213-225, DOI: 10.1144/ 1467-7873/04-202.
• Çağatay, M.N., N. Balkıs, U. Sancar, F.Y. Eryılmaz, M. Eryılmaz, E. Sarı, L. Erel, S. Akçer, and D. Biltekin (2007), Sediment geochemistry atlas of the Sea of Marmara. In: 60th Geological Congress of Turkey, 16-22 April 2007, Ankara, Turkey, 350-351.
• Canet, C., R.M. Prol-Ledesma, P.R. Dando, V. Vázquez-Figueroa, E. Shumilin, E. Birosta, A. Sánchez, C.J. Robinson, A. Camprubí, and E. Tauler (2010), Discovery of massive seafloor gas seepage along the Wagner Fault, northern Gulf of California, Sediment. Geol. 228, 3-4, 292-303, DOI: 10.1016/ j.sedgeo.2010.05.004.
• Chun, J.H., B.-J. Ryu, C.S. Lee, Y.J. Kim, J.Y. Choi, N.K. Kang, J.J. Bahk, J.H. Kim, K.J. Kim, and D.G. Yoo (2012), Factors determining the spatial distribution of gas-charged sediments in the continental shelf off southeastern Korea, Mar. Geol. 332-334, 27-39, DOI: 10.1016/j.margeo.2012.06. 004.
• Çifçi, G., D. Dondurur, and M. Ergün (2003), Deep and shallow structures of large pockmarks in the Turkish shelf, Eastern Black Sea, Geo-Mar. Lett. 23, 3-4, 311-322, DOI: 10.1007/s00367-003-0138-x.
• Crutchley, G.J., I.A. Pecher, A.R. Gorman, S.A. Henrys, and J. Greinert (2010), Seismic imaging of gas conduits beneath seafloor seep sites in a shallow marine gas hydrate province, Hikurangi Margin, New Zealand, Mar. Geol. 272, 1-4, 114-126, DOI: 10.1016/j.margeo.2009.03.007.
• Dondurur, D. (2005), Gas saturated sediments in the Eastern Black Sea and their investigations by seismic and sonar data, Ph.D. Thesis, Dokuz Eylül University, Izmir, Turkey.
• Dondurur, D., G. Çiftçi, M.G. Drahor, and S. Coşkun (2011), Acoustic evidence of shallow gas accumulations and active pockmarks in the Izmir Gulf, Aegean Sea, Mar. Petrol. Geol. 28, 8, 1505-1516, DOI: 10.1016/j.marpetgeo.2011. 05.001.
• Emeis, K.C., V. Brüchert, B. Currie, R. Endler, T. Ferdelman, A. Kiessling, T. Leipe, K. Noli-Peard, U. Struck, and T. Vogt (2004), Shallow gas in shelf sediments of the Namibian coastal upwelling ecosystem, Cont. Shelf Res. 24, 6, 627-642, DOI: 10.1016/j.csr.2004.01.007.
• Ergin, M., N. Kazancı, B. Varol, Ö. İleri, and L. Karadenizli (1997), Sea-level changes and related depositional environments on the southern Marmara shelf, Mar. Geol. 140, 3-4, 391-403, DOI: 10.1016/S0025-3227(97)00029-7.
• Ergün, M., D. Dondurur, and G. Çifçi (2002), Acoustic evidence for shallow gas accumulations in the sediments of the Eastern Black Sea, Terra Nova 14, 5, 313-320, DOI: 10.1046/j.1365-3121.2002.00434.x.
• Field, M.E., S.H. Clarke Jr., and K. Kvenvolden (1980), Diapir-like ridges and possible hydrocarbon occurrence, northern California continental margin, AAPG Bull. 64, 5, 706-715.
• Fleischer, P., T.H. Orsi, M.D. Richardson, and A.L. Anderson (2001), Distribution of free gas in marine sediments: a global overview, Geo-Mar. Lett. 21, 2, 103-122, DOI: 10.1007/s003670100072.
• Garcia-Gil, S., F. Vilas, and A. García-García (2002), Shallow gas features in incised-valley fills (Ria de Vigo, NW Spain): a case study, Cont. Shelf Res. 22, 16, 2303-2315, DOI: 10.1016/S0278-4343(02)00057-2.
• Gay, A., M. Lopez, H. Ondreas, J.L. Charlou, G. Sermondadaz, and P. Cochonat (2006), Seafloor facies related to upward methane flux within a Giant Pockmark of the Lower Congo Basin, Mar. Geol. 226, 1-2, 81-95, DOI: 10.1016/j.margeo.2005.09.011.
• Hovland, M., and A.G. Judd (1988), Seabed Pockmarks and Seepages: Impact on Geology, Biology, and Marine Environment, Graham and Trotman, London, 293 pp.
• Hovland, M., A.G. Judd, and R.A. Burke Jr. (1993), The global flux of methane from shallow submarine sediments, Chemosphere 26, 1-4, 559-578, DOI: 10.1016/0045-6535(93)90442-8.
• Iglesias, J., and S. Garcia-Gil (2007), High-resolution mapping of shallow gas accumulations and gas seeps in San Simón Bay (Ría de Vigo, NW Spain): Some quantitative data, Geo-Mar. Lett. 27, 2-4, 103-114, DOI: 10.1007/ s00367-007-0065-3.
• Ivanov, M.K., A.F. Limonov, and J.M. Woodside (1998), Extensive deep fluid flux through the sea floor on the Crimean continental margin (Black Sea), Geol. Soc. London Sp. Publ. 137, 1, 195-213, DOI: 10.1144/GSL.SP.1998.137. 01.16.
• Judd, A.G., and M. Hovland (1992), The evidence of shallow gas in marine sediments, Cont. Shelf Res. 12, 10, 1081-1095, DOI: 10.1016/0278-4343(92) 90070-Z.
• Judd, A.G., and R.H. Sim (1998), Shallow gas migration mechanisms in deep water sediments. In: D.A. Ardus, R. Hobbs, M. Horsnell, R. Jardine, D. Long, and J. Sommerville (eds.), Proc. Int. Conf. “Offshore Site Investigation and Foundation Behaviour: New Frontiers”, 22-24 September 1998, London, United Kingdom, 163-174.
• Judd, A.G., M. Hovland, L.I. Dimitrov, S. Garcia-Gill, and V. Jukes (2002), The geological methane budget at Continental Margins and its influence on climate change, Geofluids 2, 2, 109-126, DOI: 10.1046/j.1468-8123.2002. 00027.x.
• Judd, A.G., and M. Hovland (2007), Submarine Fluid Flow, the Impact on Geology, Biology, and the Marine Environment, Cambridge University Press, Cambridge.
• Kazancı, N., S. Girgin, M. Dügel, D. Oğuzkurt, B. Mutlu, Ş. Dere, M. Barlas, and M. Özçelik (1999), Limnology, environmental quality and biodiversity of Lake Köyceğiz, Beyşehir, Eğirdir, Akşehir, Eber, Çorak, Kovada, Yarışlı, Bafa, Salda, Karataş, Çavuşçu, Karamuk, delta of Küçük and Büyük Menderes, Güllük marshy. In: Türkiye İç Suları Araştırmaları Dizisi: IV, Form Ofset, Ankara (in Turkish).
• King, L.H., and B. MacLean (1970), Pockmarks on the Scotian Shelf, Bull. Geol. Soc. Am. 81, 10, 3141-3148, DOI: 10.1130/0016-7606(1970)81[3141: POTSS]2.0.CO;2.
• Kvenvolden, K.A., T.M. Vogel, and J.V. Gardner (1981), Geochemical prospecting for hydrocarbons in the outer continental shelf, Southern Bering Sea, Alaska, J. Geochem. Explor. 14, 2-3, 209-219, DOI: 10.1016/0375- 6742(81)90113-8.
• Kuşçu, İ., M. Okamura, H. Matsuoka, K. Yamamori, Y. Awata, and S. Özalp (2009), Recognition of active faults and stepover geometry in Gemlik Bay, Sea of Marmara, NW Turkey, Mar. Geol. 260, 1-4, 90-101, DOI: 10.1016/ j.margeo.2009.02.003.
• Laier, T., and J.B. Jensen (2007), Shallow gas depth-contour map of the Skagerrakwestern Baltic Sea region, Geo-Mar. Lett. 27, 2-4, 127-141, DOI: 10.1007/ s00367-007-0066-2.
• Lowe, J.J., and M.J.C. Walker (1997), Reconstructing Quaternary Environments, Longman Publ., London, 446 pp.
• Mazumdar, A., A. Peketi, P. Dewangan, F. Badesab, T. Ramprasad, M.V. Ramana, D.J. Patil, and A. Dayal (2009), Shallow gas charged sediments off the Indian west coast: Genesis and distribution, Mar. Geol. 267, 1-2, 71-85, DOI: 10.1016/j.margeo.2009.09.005.
• Missiaen, T., S. Murphy, L. Loncke, and J.P. Henriet (2002), Very high-resolution seismic mapping of shallow gas in the Belgian coastal zone, Cont. Shelf Res. 22,16, 2291-2301, DOI: 10.1016/S0278-4343(02)00056-0.
• Mülayim, A., N. Balkıs, H. Balkıs, and A. Aksu (2012), Distributions of total metals in the surface sediments of the Bandirma and Erdek Gulfs, Marmara Sea, Turkey, Toxicol. Environ. Chem. 94, 1, 56-69, DOI: 10.1080/02772248. 2011.633914.
• Okyar, M., and V. Ediger (1999), Seismic evidence of shallow gas in the sediment on the shelf off Trabzon, southeastern Black Sea, Cont. Shelf Res. 19, 5, 575-587, DOI: 10.1016/S0278-4343(98)00111-3.
• Overpeck, J.T., and J.E. Cole (2006), Abrupt change in Earth’s climate system, Ann. Rev. Environ. Resour. 31, 1-31, DOI: 10.1146/annurev.energy.30.050504. 144308.
• Öztürk, K., C. Yaltırak, and B. Alpar (2009), The relationship between the tectonic setting of the Lake İznik Basin and the Middle Strand of the North Anatolian Fault, Turkish J. Earth Sci. 18, 2, 209-224, DOI: 10.3906/yer-0803-4.
• Polonia, A., L. Gasperini, A. Amorosi, E. Bonatti, G. Bortoluzzi, N. Çağatay, L. Capotondi, M.-H. Cormier, N. Görür, C. McHugh, and L. Seeber (2004), Holocene slip rate of the North Anatolian Fault beneath the Sea of Marmara, Earth Planet. Sci. Lett. 227, 3-4, 411-426, DOI: 10.1016/j.epsl.2004. 07.042.
• Prior, D.B., and J.M. Coleman (1982), Active slides and flows in underconsalidated marine sediments on the slopes of the Mississippi delta. In: S. Saxov and J.K. Nieuwenhuis (eds.), Marine Slides and Other Mass Movements, Plenum Press, New York, 21-49, DOI: 10.1007/978-1-4613-3362-3_3.
• Rangin, C., E. Demirbağ, C. İmren, A. Crusson, A. Normand, E. Le Drezen, and A. Le Bot (2001), Marine Atlas of the Sea of Marmara (Turkey), Ifremer, Geneva.
• Rice, D.D., and G.E. Claypool (1981), Generation, accumulation, and resource potential of biogenic gas, AAPG Bull. 65, 1, 5-25.
• Ritt, B., J. Sarrazin, J.C. Caprais, P. Noël, O. Gauthier, C. Pierre, P. Henry, and D. Desbruyères (2010), First insights into the structure and environmental setting of cold-seep communities in the Marmara Sea, Deep Sea Res. I 57, 9, 1120-1136, DOI: 10.1016/j.dsr.2010.05.011.
• Rollet, N., G.A. Logan, G. Ryan, A.G. Judd, J.M. Totterdell, K. Glenn, A.T. Jones, F. Kroh, H.I.M. Struckmeyer, J.M. Kennard, and K.L. Earl (2009), Shallow gas and fluid migration in the northern Arafura Sea (offshore Northern Australia), Mar. Petrol. Geol. 26, 1, 129-147, DOI: 10.1016/j.marpetgeo.2007. 07.010.
• Savini, A., E. Malinverno, G. Etiope, C. Tessarolo, and C. Corselli (2009), Shallow seep-related seafloor features along the Malta plateau (Sicily channel – Mediterranean Sea): Morphologies and geoenvironmental control of their distribution, Mar. Petrol. Geol. 26, 9, 1831-1848, DOI: 10.1016/ j.marpetgeo.2009.04.003.
• Schoell, M. (1988), Multiple origins of methane in the Earth, Chem. Geol. 71, 1-3, 1-10, DOI: 10.1016/0009-2541(88)90101-5.
• Schubel, J.R. (1974), Gas bubbles and the acoustically impenetrable, or turbid, character of some estuarine sediments. In: I.R. Kaplan (ed.), Natural Gases in Marine Sediments, Plenum Press, New York, 275-298, DOI: 10.1007/978- 1-4684-2757-8_16.
• Şengör, A.M.C. (1979), The North Anatolian transform fault: its age, offset and tectonic significance, J. Geol. Soc. 136, 3, 269-282, DOI: 10.1144/gsjgs.136.3. 0269.
• Tryon, M.D., P. Henry, and D.R. Hilton (2012), Quantifying submarine fluid seep activity along the North Anatolian Fault Zone in the Sea of Marmara, Mar. Geol. 315-318, 15-28, DOI: 10.1016/j.margeo.2012.05.004.
• Ünlü, S., and B. Alpar (2006), Distribution and sources of hydrocarbons in surface sediments of Gemlik Bay (Marmara Sea, Turkey), Chemosphere 64, 5, 764- 777, DOI: 10.1016/j.chemosphere.2005.10.064.
• Valle, G.D., and F. Gamberi (2011), Pockmarks and seafloor instability in the Olbia continental slope (northeastern Sardinian margin, Tyrrhenian Sea), Mar. Geophys. Res. 32, 1-2, 193-205, DOI: 10.1007/s11001-011-9133-1.
• Vardar, D. (2013), Examining the Plio-Quaternary structures of southern Marmara (between Karabiga and Gemlik) shoreface area with seismic reflection data, Ph.D. Thesis, İstanbul University, Institute of Marine Sciences and Management, İstanbul, Turkey.
• Vardar, D., K. Öztürk, C. Yaltırak, B. Alpar, and H. Tur (2014), Late Pleistocene– Holocene evolution of the southern Marmara shelf and sub-basins: middle strand of the North Anatolian fault, southern Marmara Sea, Turkey, Mar. Geophys. Res. 35, 1, 69-85, DOI: 10.1007/s11001-013-9210-8.
• Vilas, F., M.A. Nombela, E. Garcia-Gil, S. Garcia-Gil, I. Alejo, B. Rubio, and O. Pazos (1995), Cartografia de sedimentos submarinos, Ria de Vigo, E: 1:50 000, Xunta de Galicia.
• Whiticar, M.J. (2002), Diagenetic relationships of methanogenesis, nutrients, acoustic turbidity, pockmarks and freshwater seepages in Eckernförde Bay, Mar. Geol. 182, 1-2, 29-53, DOI: 10.1016/S0025-3227(01)00227-4.
• Yaltırak, C., and B. Alpar (2002), Evolution of the middle strand of North Anatolian Fault and shallow seismic investigation of the southeastern Marmara Sea (Gemlik Bay), Mar. Geol. 190, 1-2, 307-327, DOI: 10.1016/S0025- 3227(02)00352-3.
• Yaltırak, C., B. Alpar, M. Sakınç, and H. Yüce (2000), Origin of the Strait of Çanakkale (Dardanelles): regional tectonics and the Mediterranean– Marmara incursion, Mar. Geol. 164, 3-4, 139-156, DOI: 10.1016/S0025- 3227(99)00134-6.
• Yun, J.W., D.L. Orange, and M.E. Field (1999), Subsurface gas offshore of northern California and its link to submarine geomorphology, Mar. Geol. 154, 1-4, 357-368, DOI: 10.1016/S0025-3227(98)00123-6.
• Zitter, T.A.C., P. Henry, G. Aloisi, G. Delaygue, M.N. Çağatay, B. Mercier de Lepinay, M. Al-Samir, F. Fornacciari, M. Tesmer, A. Pekdeğer, K. Wallmann, and G. Lericolais (2008), Cold seeps along the main Marmara Fault in the Sea of Marmara (Turkey), Deep Sea Res. I 55, 4, 552-570, DOI: 10.1016/ j.dsr.2008.01.002.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę