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Glacier sediment plumes in small bays on the Danco Coast, Antarctic Peninsula

Published online by Cambridge University Press:  09 June 2016

Cristian Rodrigo ,
Susana Giglio  and
Andres Varas
Cristian Rodrigo*
Affiliation:
Facultad de Ingenieria-Geologia, Universidad Andres Bello, Quillota 980, Viña del Mar, Chile
Susana Giglio
Affiliation:
Facultad de Ciencias, Universidad Andres Bello, Quillota 980, Viña del Mar, Chile Subsecretaria de Pesca y Acuicultura, Bellavista 168, piso-16, Valparaiso, Chile
Andres Varas
Affiliation:
Escuela de Ciencias del Mar, Pontificia Universidad Catolica de Valparaiso, Av. Altamirano 1480, Valparaiso, Chile
*
cristian.rodrigo@unab.cl
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Abstract

Glacimarine sedimentary environments provide information about climate and oceanographic evolution in the Antarctic Peninsula. This study focuses on the generation of sediment plumes from glaciers. In February 2013 and 2014, two Chilean Antarctic Institute (INACH) Scientific Expeditions were carried out on board the Chilean Navy vessel Aquiles. Five relatively small bays were visited: Curtiss Bay, Recess Cove, Beaupre Cove, Paradise Harbour/Oscar Cove and Salvesen bay. Hydrography and turbidity profiling was carried out up to 100 m depth using an SBE19 Plus-V2 CTD-T. In general, the results showed sediment plumes at two levels: an upper plume from the surface up to 10 m deep and a deeper plume at 40–100 m. These plumes were identified by higher turbidity concentrations and their association with colder water tongues. The deeper plume tended to remain below the 1027.5 kg m-3 isopycnal and extended ~4 km from the glacier, maintaining its shape with a gradually decreasing particle concentration. This longitudinal extension was favoured by ebb tides. The characteristics of the sediment plumes may be influenced by the heat input from water masses. The contribution of the sediments from these small bay systems could play an important role in regional sedimentary processes.

Keywords

glacimarine environmentssalinitytemperatureturbidity
Type
Physical Sciences
Information
Antarctic Science , Volume 28 , Issue 5 , October 2016 , pp. 395 - 404
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Copyright
© Antarctic Science Ltd 2016 

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References

Anderson, J.B. & Domack, E.W. 1991. The glacial marine environment: subglacial and glacial climatic setting. Foreword. In Anderson, J.B. & Ashley, G.M., eds. Glacial marine sedimentation: paleoclimatic significance. A discussion. Special Paper of the Geological Society of America, No. 261.Google Scholar
APHA-AWWA-WEF. 2012. Standard methods for the examination of water and wastewater, 22nd ed. New York, NY: APHA-AWWA-WEF, 2540 pp.Google Scholar
DaSilva, J.L., Anderson, J.B. & Stravers, J. 1997. Seismic facies changes along a nearly continuous 24° latitudinal transect: the fjords of Chile and the northern Antarctic Peninsula. Marine Geology, 143, 103–123.CrossRefGoogle Scholar
Domack, E.W. & Ishman, S. 1993. Oceanographic and physiographic controls on modern sedimentation within Antarctic fjords. Geological Society of America Bulletin, 105, 1175–1189.Google Scholar
Domack, E.W. & Williams, C.R. 1990. Fine structure and suspended sediment transport in three Antarctic fjords. Antarctic Research Series, 50, 71–89.Google Scholar
Domack, E.W., Foss, D.J.P., Syvitski, J.P.M. & McClennen, C.E. 1994. Transport of suspended particulate matter in an Antarctic fjord. Marine Geology, 121, 161–170.Google Scholar
Domack, E.W. & McClennen, C.E. 1996. Accumulation of glacial marine sediments in fjords of the Antarctic Peninsula and their use as Late Holocene paleoenvironmental indicators. Antarctic Research Series, 70, 135–154.Google Scholar
García, M.A., Castro, C.G., Ríos, A.F., Doval, M.D., Rosón, G., Gomis, D. & López, O. 2002. Water masses and distribution of physico-chemical properties in the western Bransfield Strait and Gerlache Strait during Austral summer 1995/96. Deep-Sea Research II - Topical Studies in Oceanography, 49, 585–602.Google Scholar
Griffith, T.W. & Anderson, J.B. 1989. Climatic control of sedimentation in bays and fjords of the northern Antarctic Peninsula. Marine Geology, 85, 181–204.Google Scholar
Gutt, J., Barratt, I., Domack, E., d’Acoz, C.D., Dimmler, W., Grémare, A., Heilmayer, O., Isla, E., Janussen, D., Jorgensen, E., Kock, K.-H., Lehnert, L.S., López-Gonzáles, P., Langner, S., Linse, K., Manjón-Cabeza, M.E., Meißner, M., Montiel, A., Raes, M., Robert, H., Rose, A., Schepisi, E.S., Saucède, T., Scheidat, M., Schenke, H.-W., Seiler, J. & Smith, C. 2011. Biodiversity change after climate-induced ice-shelf collapse in the Antarctic. Deep-Sea Research II - Topical Studies in Oceanography, 58, 74–83.Google Scholar
Ingólfsson, Ó. & Hjort, C. 2002. Glacial history of the Antarctic Peninsula since the Last Glacial Maximum: a synthesis. Polar Research, 21, 227–234.Google Scholar
Khim, B.-K., Il Hoon, H., Kim, Y. & Shin, I.C. 2001. Late Holocene stable isotope chronology and meltwater discharge event in Maxwell and Admiralty bays, King George Island, Antarctica. Antarctic Science, 13, 167–173.Google Scholar
King, J.C., Turner, J., Marshall, G.J., Connolley, W.M. & Lachlan-Cope, T.A. 2003. Antarctic Peninsula climate variability and its causes as revealed by analysis of instrumental records. Antarctic Research Series, 79, 17–30.Google Scholar
Lake, R.A. & Walker, E.R. 1976. A Canadian arctic fjord with some comparisons to fjords of the western Americas. Journal of the Fisheries Research Board of Canada, 33, 2272–2285.Google Scholar
MacAyeal, D.R. 1985. Evolution of tidally triggered meltwater plumes below ice Shelves. Antarctic Research Series, 43, 133–143.Google Scholar
Martínez, A., Sangrà, P., Lubián, L., Antorranz, A., Pelegrí, J.L., Rodríguez, S. & Sobrino, C. 2002. Mesoscale/submesoscale structures and chlorophyll distribution in the Gerlache Strait (Antarctica). EGS XXVII General Assembly, Nice, 21–26.Google Scholar
Massom, R.A. & Stammerjohn, S.E. 2010. Antarctic sea ice change and variability – physical and ecological implications. Polar Science, 4, 149–186.Google Scholar
Mayewski, P.A., Meredith, M.P., Summerhayes, C.P., Turner, J., Worby, A., Barrett, P.J., Casassa, G., Bertler, N.A.N., Bracegirdle, T., Garabato, A.C.N., Bromwich, D., Campbell, H., Hamilton, G.S., Lyons, W.B., Maasch, K.A., Aoki, S., Xiao, C. & van Ommen, T. 2009. State of the Antarctic and Southern Ocean climate system. Reviews of Geophysics, 47, 10.1029/2007RG000231.Google Scholar
McClimans, T.A. 1978. Fronts in fjords. Geophysical & Astrophysical Fluid Dynamics, 11, 23–34.Google Scholar
Mugford, R.I. & Dowdeswell, J.A. 2011. Modeling glacial meltwater plume dynamics and sedimentation in high-latitude fjords. Journal of Geophysical Research - Earth Surface, 116, 10.1029/2010JF001735.Google Scholar
Niiler, P.P., Amos, A. & Hu, J.-H. 1991. Water masses and 200 m relative geostrophic circulation in the western Bransfield Strait region. Deep-Sea Research A-Oceanographic Research Papers, 38, 943–959.Google Scholar
Padman, L. 2005. Tide Model Driver (TMD) manual, version 1.2. Earth & Space Research, 13 pp. Available at: www.esr.org.Google Scholar
Pichlmaier, M., Aquino, F.E., DaSilva, C.S. & Braun, M.H. 2004. Suspended sediments in Admiralty Bay, King George Island (Antarctica). Pesquisa Antartica Brasileira, 4, 77–85.Google Scholar
Powell, R. & Domack, G.W. 1995. Modern glaciomarine environments. In Menzies, J., ed. Modern glacial environments: processes, dynamics and sediments, glacial environments. Oxford: Butterworth-Heinemann, 445–486.Google Scholar
Rignot, E., Casassa, G., Gogineni, P., Krabill, W., Rivera, A. & Thomas, R. 2004. Accelerated ice discharge from the Antarctic Peninsula following the collapse of Larsen B ice shelf. Geophysical Research Letters, 31, 10.1029/2004GL020697.Google Scholar
Sciascia, R., Straneo, F., Cenedese, C. & Heimbach, P. 2013. Seasonal variability of submarine melt rate and circulation in an east Greenland fjord. Journal of Geophysical Research - Oceans, 118, 2492–2506.Google Scholar
Sangrà, P., Gordo, C., Hernández-Arencibia, M., Marrero-Díaz, A., Rodríguez-Santana, A., Stegner, A., Martínez-Marrero, A., Pelegrí, J.L. & Pichon, T. 2011. The Bransfield current system. Deep-Sea Research I-Oceanographic Research Papers, 58, 390–402.Google Scholar
Syvitski, J.P.M. 1989. On the deposition of sediment within glacier-influenced fjords: oceanographic controls. Marine Geology, 85, 301–329.Google Scholar
Trusel, L.D., Powell, R.D., Cumpston, R.M. & Brigham-Grette, J. 2010. Modern glacimarine processes and potential future behaviour of Kronebreen and Kongsvegen polythermal tidewater glaciers, Kongsfjorden, Svalbard. Special Publications of the Geological Society of London, 344, 89–102.Google Scholar
Turner, J., Colwell, S.R., Marshall, G.J., Lachlan-Cope, T.A., Carleton, A.M., Jones, P.D., Lagun, V., Reid, P.A. & Iagovkina, S. 2005. Antarctic climate change during the last 50 years. International Journal of Climatology, 25, 279–294.Google Scholar
Yoo, K.C., Lee, M.K., Il Yoon, H., Il Lee, Y. & Kang, C.Y. 2015. Hydrography of Marian Cove, King George Island, West Antarctica: implications for ice-proximal sedimentation during summer. Antarctic Science, 27, 185–196.Google Scholar
Yoon, H.I., Park, B.K., Domack, E.W. & Kim, Y. 1998. Distribution and dispersal pattern of suspended particulate matter in Maxwell Bay and its tributary, Marian Cove, in the South Shetland Islands, West Antarctica. Marine Geology, 152, 261–275.Google Scholar
Zajączkowski, M. 2008. Sediment supply and fluxes in glacial and outwash fjords, Kongsfjorden and Adventfjorden, Svalbard. Polish Polar Research, 29, 59–72.Google Scholar
Zhou, M., Niiler, P.P. & Hu, J.H. 2002. Surface currents in the Bransfield and Gerlache straits, Antarctica. Deep-Sea Research I-Oceanographic Research Papers, 49, 267–280.CrossRefGoogle Scholar