Advanced SearchSearch Tips
Gas Hydrate BSR-derived Heat Flow Variations on the South Shetland Continental Margin, Antarctic Peninsula
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : Ocean and Polar Research
  • Volume 25, Issue 2,  2003, pp.201-211
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2003.25.2.201
 Title & Authors
Gas Hydrate BSR-derived Heat Flow Variations on the South Shetland Continental Margin, Antarctic Peninsula
Jin, Young-Keun; Nam, Sang-Heon; Kim, Yea-Dong; Kim, Kyu-Jung; Lee, Joo-Han;
  PDF(new window)
Bottom simulating reflectors (BSR), representing the base of the gas hydrate stability field, are widespread on the South Shetland continental margin (SSM), Antarctic Peninsula. With the phase diagram fur the gas hydrate stability field, heat flow can be derived from the BSR depth beneath the seafloor determined on multichannel seismic profiles. The heat flow values in the study area range from to , averaging to . Small deviation from the average heat flow values suggests that heat flow regime of the study area is relatively stable. The landward decrease of heat flow from the South Shetland Trench to the continental shelf would be attributed to the landward thickening of the accretionary prism and the upward advection of heat associated with fluid expulsion. The continental slope 1500m to 3000m deep, where BSRs are most distinguished in the SSM, shows relatively large variation of heat flow possibly due to complex tectonic activities in the study area. The local high heat flow anomalies observed along the slope may be caused by heat transport mechanisms along a NW-SE trending large-scale fault.
gas hydrate;BSR;heat flow;South Shetland margin;
 Cited by
Ashi, H. and A. Taira. 1993. Thermal structure of the Nankai accretionary prism as inferred from the distribution of gas hydrate BSRs. p. 137-149. In: Thermal Evolution of the Tertiary Shimanto Belt, Southwest Japan: An Example of Ridge-Trench Interaction. ed. by M.B. Underwood. Geological Society of America Special Paper 272.

Camerlenghi, A. and E. Lodolo. 1994. Bottom simulating reflector on the South Shetland margin (Antarctic Peninsula) and implications for the presence of gas hydrates. Terra Antartica, 1, 154-157.

Carson, B., G.K. Westbrook, and R.J. Musgrave et al. 1993. ODP Leg 146 examines fluid flow in Cascadia margin. EOS, 74, 345-347.

Davis, E.E., R.D. Hyndman, and H. Villinger. 1990. Rates of fluid expulsion across the northern Cascadia accretionary prism: constraints from new heat flow and multichannel seismic reflection data. J. Geophys. Res., 95, 8869-8889. crossref(new window)

Dickens, G.R. and M.S. Quinby-Hunt. 1994. Methane hydrate stability in seawater. Geophys. Res. Lett., 21, 2115-2118. crossref(new window)

Dillon, W.P., J.W. Nealon, M.H. Taylor, M.W. Lee, R.M. Drury, and C.H. Anton. 2001. Seafloor collapse and methane venting associated with gas hydrate on the Blake Ridge-causes and implications to seafloor stability and methane release. p. 211-233. In: Natural Gas Hydrates: Occurrence, Distribution and Detection. eds. by C.K. Paull and W.P. Dillon. Geophysical Monograph 124.

Ganguly, N., G.D. Spence, N.R. Chapman, and R.D. Hyndman. 2000. Heat flow variations from bottom simulating reflectors on the Cascadia margin. Mar. Geol., 164, 53-68. crossref(new window)

Gray, W.C. 1979. Variable norm deconvolution. Ph.D. thesis. Stanford Univ. 101 p.

Gonzalez-Casado, J.M., J.L. Giner-Robies, and J. Lopez-Martinez. 2000. Bransfield Basin, Antarctic Peninsula: Not a normal backarc basin. Geol., 28, 1043-1046. crossref(new window)

Hamilton, E.L. 1978. Sound velocity-density relations in seafloor sediments and rocks. J. Acoust. Soc. Am., 63, 366-377. crossref(new window)

Hyndman, R.D., K. Wang, T. Yuan, and G.D. Spence. 1993. Tectonic sediment thickening, fluid expulsion and the thermal regime of subduction zone accretionary prism: the Cascadia margin off Vancouver Island. J. Geophys. Res., 98, 21865-21876. crossref(new window)

Jin, Y.K., Y. Kim, S.H. Nam, and K.J. Kim. 2000. Morphotectectic variation of the Shackleton Fracture Zone around the Antarctic-Scotia plate boundary off the northern Antarctic Peninsula. Korean J. Geophys., 3, 210-218.

Jin, Y.K., M.W. Lee, Y. Kim, S.H. Nam, and K.J. Kim. 2003. Gas hydrate volume estimations on the South Shetland continental margin, Antarctic Peninsula. Antarc. Sci. (in press)

Kaul, N., A. Rosenberger, and H. Villinger. 2000. Comparison of measured and BSR-derived heat flow values, Markan accretionary prism, Pakistan. Mar. Geol., 164, 37-51. crossref(new window)

Kim, Y., H.-S. Kim, R.D., Larter, A. Camerlenghi, L.A.P. Gamboa, and S. Rudowski. 1995. Tectonic deformation in the upper crust and sediments at the South Shetland Trench. p. 157-166. In: Geology and Seismic Stratigraphy of the Antarctic Margin. eds. by A.K. Cooper, P.F. Barker, and G. Brancolini. AGU, Antarc. Res. Ser. 68.

Kim, Y., Y.K. Jin, and S.H. Nam. 1997. Crustal Structure of the Shackleton Fracture Zone in the Southwestern Scotia Sea. p. 661-667. In: The Antarctic Region: Geological Evolution and Process. ed. by C.A. Ricci. Terra Antarctic Publication, Siena.

Klepeis, K.A. and L.A. Lawver. 1996. Tectonics of the Antarctic-Scotia plate boundary near Elephant and Clarence Islands, West Antractica. J. Geophys. Res., 89, 20211-20231.

Kvenvolden, K.A. 1993. A primer on gas hydrate. p. 279-291. In: The Future of Energy Gases. ed. by D.G. Howell. et al. US Geological Survey professional paper 1570.

Kvenvolden, K.A. 2000. Natural gas hydrate: Introduction and history of discovery. p. 9-16. In: Natural Gas Hydrate in Oceanic and Permafrost Environments. ed. by M.D. Max. Kluwer Academic Publishers, Dordrecht.

Kvenvolden, K.A., M. Golan-Bac, and J.B. Rapp. 1987. Hydrocarbon geochemisty of sediments offshore from Antarctica: Wilkes Land continental margin. p. 205-213. In: The Antarctic continental margin: Geology and Geophysics of offshore Wilkes Land. eds. by S.L. Eittreim and M.A. Hampton. Circum Pacific Council for Energy and Mineral Resources, Earth Science Series, Houston.

Larter, R.D. and P.F. Barker. 1991. Effects of ridge cresttrench interaction on Antarctic-Phoenix spreading: Forces on a young subducting plate. J. Geophys. Res., 96, 19583-19607. crossref(new window)

Larter, R.D., M. Rebesco, L.E. Vanneste, L.A.P. Gamboa, and P.F. Barker. 1997. Cenozoic tectonic, sedimentary and glacial history of the continental shelf west of Graham Land, Antarctic Peninsula. p. 1-27. In: Geology and Seismic Stratigraphy of the Antarctic Margin, Part 2. eds. by P.F. Barker and A.K. Cooper, AGU, Antarc. Res. Ser., 71.

Lawver, L.A., B.J. Sloan, D.H.N. Barker, M. Chidella, R.P. Von Herzen, R.A. Keller, G.P. Klinkhammer, and C.S. Chin. 1996. Distributed, active extension in Bransfield Basin, Antarctic Peninsula: Evidence from multibeam bathymetry. GSA Today, 6(11), 1-6.

Lee, D.K., Y.K. Jin, Y. Kim, and S.H. Nam. 2000. Seismicity and tectonics around the northern Antarctic Peninsula from King Sejong station data. Antarctic Science, 12, 196-204.

Lengseth, M.G., G.K. Westbrook, and M. Hobart. 1990. Contrasting geothermal regimes of the Barbados ridge accretionary complex. J. Geophys. Res., 95. 8829-8844. crossref(new window)

Livermore, R., J.C. Balanya, A. Maldonado, J.R. Martinez, J.R. Fernandez, C.S. Baldeano, J.G. Zaldivar, A. Jabaloy, A. Barnolas, L. Somoza, J.H. Molina, E. Surinach, and C. Viseras. 2000. Autopsy on a dead spreading center: The Phoenix Ridge, Drake Passage, Antarctica. Geol., 28, 607-610. crossref(new window)

Lodolo, E. and A. Camerlenghi. 2000. The occurrence of BSRs on the Antarctic Margin. p. 199-212. In: Natural gas hydrate in oceanic and permafrost environments. ed. by M.D. Max. Kluwer Academic Publishers, Dordrecht.

Lodolo, E., A. Camerlenghi, and G. Brancolini. 1993. A bottom simulating reflection on the South Shetland Margin, Antarctic Peninsula. Antarctic Sciences, 5, 207-210.

Lodolo, E., A. Camerlenghi, G. Madrussani, U. Tinivella, and G. Rossi. 2002. Assessment of gas hydrate and free gas distribution on the South Shetland margin (Antarctica) based on multichannel seismic reflection data. Geophys. J. Inter., 148, 103-119.

Minsull, T. and R. White. 1989. Sediment compaction and fluid migration in Makran accretionary prism. J. Geophys. Res., 94, 7387-7402. crossref(new window)

Nowlin, Jr. W.D., and W. Zenk. 1988. Westward bottom currents along the margin of the South Shetland Island arc. Deep-Sea Res., 35, 269-301. crossref(new window)

Pankhurst, R.J. 1982. Rb-Sr geochronology of Graham Land, Antarctica. J. Geol. Soc. London, 139, 701-711. crossref(new window)

Pelayo, A.M. and D.A. Wiens. 1989. Seismotectonis and relative plate motion in the Scotia Sea region. J. Geophys. Res., 94, 7293-7320. crossref(new window)

Shipley, T.H., M.H. Houston, R.T. Buffler, F.J. Shaub, K.J. McMillen, J.W. Ladd, and J.L. Worzel. 1979. Seismic evidence for widespread possible gas hydrate horizons on continental slopes and rises. AAPG Bull., 63, 2204-2213

Sloan, E.D. 1998. Clathrate Hydrate of Natural Gases. Marcel Dekker, New York. 705 p.

Smith, W.H.F. and D.T. Sandwell. 1997. Global sea floor topography from satellite altimetry and ship depth sounding. Science, 277, 1956-1962. crossref(new window)

Taira, A., I. Hill, J. Firth, and the Leg131 Shipboard Scientific Party. 1991. Proceedings of the ODP, Initial Reports 131, Ocean Drilling Program, College Station, TX.

Tanahashi, M., S. Eittreim, and J. Wannesson. 1994. Seismic stratigraphic sequences of the Wilkes Land margin. Terra Antarc., 1, 391-393.

Tinivella, U., E. Lodolo, A. Camerlenghi, and G. Boehm. 1998. Seismic tomography study of a bottom simulating reflector off the South Shetland Margin (Antarctica). p. 141-151. In: Gas hydrates: Relevance to world margin stability and climate change. eds. by J.-P. Henriet and J. Mienert. Geological Society London Special Publication 137.

Trehu, A.M., G. Lin, E. Maxwell, and C. Goldfinger. 1995. A seismic reflection profile across the Cascadia subduction zone offshore central Oregon: new constraints on methane distribution and crystal structure. J. Geophys. Res., 100, 15101-15116. crossref(new window)

Tucholke, B.E., G.M. Bryan, and J.I. Ewing. 1977. Gashydrate horizons detected in seismic-profile data from the Western North Atlantic. AAPG, 61, 698-707.

Wang, K., R.D. Hyndman, and E.E. Davis. 1993. Thermal effects of sediment thickening and fluid expulsion in accretionary prisms: model and parameter analysis. J. Geophys. Res., 98, 9975-9984. crossref(new window)

Yamano, M., S. Uyeda, Y. Aoki, and T.H. Shipley. 1982. Estimates of heat flow derived from gas hydrates. Geol., 10, 339-343. crossref(new window)