Skip to main content

Advertisement

Log in

Chemical weathering and solute export by meltwater in a maritime Antarctic glacier basin

  • Original Paper
  • Published:
Biogeochemistry Aims and scope Submit manuscript

Abstract

Solute yields, laboratory dissolution data and both chemical and isotopic markers of rock weathering reactions are used to characterise the biogeochemistry of glacial meltwaters draining a maritime Antarctic glacier. We find that delayed flowpaths through ice-marginal talus and moraine sediments are critical for the acquisition of solute from rock minerals because delayed flowpaths through subglacial sediments are absent beneath this small, cold-based glacier. Here the mechanisms of weathering are similar to those reported in subglacial environments, and include sub-oxic conditions in the early summer and increasingly oxic conditions thereafter. Up to 85% of the NO3 and 65% of the SO4 2− are most likely produced by bacterially mediated reactions in these ice marginal sediments. However, reactive pyrite phases are sparse in the host rocks, limiting the export of Fe, SO4 2− and cations that may be removed by weathering once pyrite oxidation has taken place. This means that dissolution of Ca2+ and Na+ from carbonate and silicate minerals dominate, producing moderate cationic denudation yields from Tuva Glacier (163 Σ*meq+ m−2 a−1) compared to a global range of values (94–4,200 Σ*meq+ km−2 a−1). Overall, crustally derived cations represent 42% of the total cationic flux, the rest being accounted for by snowpack sources.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

  • Anderson SP, Drever JI, Humphrey NF (1997) Chemical weathering in glacial environments. Geology 25:399–402

    Article  Google Scholar 

  • Anderson SP, Drever JI, Frost CD, Holden P (2000) Chemical weathering in the foreland of a retreating glacier. Geochim Cosmochim Acta 64:1173–1189

    Article  Google Scholar 

  • APHA, AWWA, WEF (1995) Standard methods for examination of water and wastewater, 19th edn. American Public Health Association, New York

    Google Scholar 

  • Bokhorst S, Huiskes A, Convey P, Aerts R (2007) External nutrient inputs into terrestrial ecosystems of the Falkland Islands and the Maritime Antarctic region. Polar Biol 30:1432–2056

    Google Scholar 

  • Borghini F, Bargagli R (2004) Changes of major ion concentrations in melting snow and terrestrial waters from northern Victoria Land, Antarctica. Antarct Sci 16:107–115

    Article  Google Scholar 

  • Bottrell SH, Tranter M (2002) Sulphide oxidation under partially anoxic conditions at the bed of the Haut Glacier d’Arolla, Switzerland. Hydrol Process 16:2363–2368

    Article  Google Scholar 

  • Brown GH, Tranter M, And Sharp MJ (1996) Experimental investigations of the weathering of suspended sediment by alpine glacial meltwater. Hydrol Process 10:579–597

    Article  Google Scholar 

  • Campbell DH, Kendall C, Chang CY, Silav SR, Tonnessen KA (2002) Pathways for nitrate release from an alpine watershed: determination using δ15N and δ18O. Water Resour Res 38(5):9-1 to 9-11

    Google Scholar 

  • Caulkett AP, Ellis-Evans JC (1997) Chemistry of streams of Signy Island, maritime Antarctic: sources of major ions. Antarct Sci 9:3–11

    Article  Google Scholar 

  • Chang CCY, Langston J, Riggs M, Campbell DH, Silva SR, Kendall C (1999) A method for nitrate collection for δ15N and δ18O analysis from waters with low nitrate concentrations. Can J Fish Aquat Sci 56:1856–1864

    Google Scholar 

  • Cooper RJ, Wadham JL, Tranter M, Peters N (2002) Groundwater hydrochemistry in the active layer of the proglacial zone, Finsterwalderbreen, Svalbard. J Hydrol 269:208–223

    Article  Google Scholar 

  • De Mora SJ, Whitehead RF, Gregory M (1991) Aqueous geochemistry of major constituents in the Alph River and tributaries in Walcott Bay, Victoria Land, Antarctica. Antarct Sci 3:73–86

    Google Scholar 

  • Fortner SK, Tranter M, Fountain AG, Lyons B, Welch KA (2005) The geochemistry of supraglacial streams of Canada Glacier, Taylor Valley (Antarctica), and their evolution into proglacial waters. Aquat Geochem 11:391–412

    Article  Google Scholar 

  • Gooseff MN, McKnight DM, Lyons WB, Blum AE (2002) Weathering reactions and hyporheic exchange controls on stream water chemistry in a glacial meltwater stream in the McMurdo Dry Valleys. Water Rersour Res 38:1279. doi:10.1029/2001WR000834

    Article  Google Scholar 

  • Green WJ, Angle MP, Chave KE (1988) The geochemistry of Antarctic streams and their role in the evolution of four lakes of the McMurdo Dry Valleys. Geochim Cosmochim Acta 52:1265–1274

    Article  Google Scholar 

  • Hall KJ, Verbeek AA, Meiklejohn KI (1986) A method for the extraction and analysis of solutes from rock samples with some comments on the implications for weathering studies: an example from Signy Island, Antarctica. Br Antarct Surv Bull 70:79–84

    Google Scholar 

  • Heaton THE, Wynn PM, Tye A (2004) Low 15N/14N ratios for nitrate in snow in the High Arctic (79°N). Atmos Environ 38:5611–5621

    Article  Google Scholar 

  • Hodgkins R, Tranter M, Dowdeswell JA (1997) Solute provenance, transport and denudation in a High-Arctic glacierised catchment. Hydrol Process 11:1813–1832

    Article  Google Scholar 

  • Hodgson DA, Roberts SJ, Bentley MJ, Smith JA, Johnson JS, Verleyen E, Vyverman W, Hodson AJ, Leng MJ, Cziferszkya A, Fox AJ, Sanderson DCW. Exploring former subglacial Hodgson Lake, Antarctica Paper I: site description, geomorphology and limnology. Quat Sci Rev. doi:10.1016/j.quascirev.2009.04.011

  • Hodson A (2006) Biogeochemistry of snowmelt in an Antarctic glacial ecosystem. Water Resour Res 42:W11406. doi: 10.1029/2005WR004311

  • Hodson A, Tranter M, Vatne G (2000) Contemporary rates of chemical denudation and atmospheric CO2 sequestration in glacier basins: an Arctic perspective. Earth Surf Proc Land 25:1447–1471

    Article  Google Scholar 

  • Hodson AJ, Anesio AM, Tranter M, Fountain AG, Osborn AM, Priscu J, Laybourn-Parry J, Sattler B (2008) Glacial ecosystems. Ecol Monogr 78:41–67

    Article  Google Scholar 

  • Kendall C, Elliott EM, Wankel SD (2007) Tracing anthropogenic inputs of nitrogen to ecosystems. In: Michener R, Lajtha K (eds) Stable isotopes in ecology and environmental science. Blackwell, Oxford, pp 375–449

    Chapter  Google Scholar 

  • Kroopnick P, Craig H (1972) Atmospheric oxygen isotopic composition and solubility fractionation. Science 175:54–55

    Google Scholar 

  • Lyons WB, Welch KA, Fountain AG, Dana GL, Vaughn BH, McKnight DM (2003) Surface glaciochemistry of Taylor Valley, southern Victoria Land, Antarctica and its relationship to stream chemistry. Hydrol Process 17:115–130

    Article  Google Scholar 

  • Mackereth FJH, Heron J, Talling JF (1978) Water analysis: some revised methods for limnologists. Freshwater Biological Association, Scientific Publication No. 36, Ambleside, UK, p 120

  • Mathews DH, Maling DH (1967) The geology at the South Orkney Islands: I Signy Island. Falkland Islands Dependencies Scientific Report, No. 25, 32 pp

  • Mayer B, Bollwerk SM, Mansfeldt T, Hutter B, Veizer J (2001) The oxygen isotope composition of nitrate generated by nitrification in acid forest floors. Geochim Cosmochim Acta 65:2743–2756

    Article  Google Scholar 

  • McKnight DM, Gooseff MN, Vincent WF, Peterson BJ (2008) High latitude rivers and streams. In: Vincent WF, Laybourn-Parry J (eds) Polar lakes and rivers—limnology of arctic and antarctic aquatic ecosystems, 83–102, Oxford, 327 pp

  • Meiklejohn KI, Hall KJ (1997) Aqueous geochemistry as an indicator of chemical on south-eastern Alexander Island. Polar Geogr 28:120–132

    Google Scholar 

  • Mitchell A, Brown GH, Fuge R (2001) Minor and trace element export from a glacierized Alpine headwater catchment (Haut Glacier d’Arolla, Switzerland. Hydrol Process 15:3499–3524

    Article  Google Scholar 

  • Nezat CA, Lyons WB, Welch KA (2001) Chemical weathering in Taylor Valley streams, Antarctica. Geol Soc Am Bull 113:1401–1408

    Article  Google Scholar 

  • Parkhurst DL (1995) Users guide to PHREEQC—a computer programme for the speciation, reaction path, advective transport, and inverse geochemical calculations. Water Resources Investigation Report 95-4227, US Geological Survey, Lakewood, CO, 143 pp

  • Quayle WC, Peck LS, Peat H, Ellis-Evans JC, Harrigan PR (2002) Extreme responses to climate change in Antarctic lakes. Science 295:645

    Article  Google Scholar 

  • Raiswell R, Tranter M, Benning LB, Siegert M, De’ath R, Huybrechts P, Payne T (2006) Contributions from glacially derived sediment to the global iron (oxyhydr)oxide cycle: implications for iron delivery to the oceans. Geochim Cosmochim Acta 70:2765–2780

    Article  Google Scholar 

  • Rees CE, Jenkins WC, Monster J (1978) The sulphur isotopic composition of ocean water sulphate. Geochim Cosmochim Acta 42:377–381

    Article  Google Scholar 

  • Savarino J, Kaiser J, Morin S, Sigman DM, Thiemens MH (2007) Nitrogen and oxygen isotopic constraints on the origin of atmospheric nitrate in coastal Antarctica. Atmos Chem Phys 7:1925–1945

    Google Scholar 

  • Schippers A, Jørgensen BB (2001) Oxidation of pyrite and iron sulfide by manganese dioxide in marine sediment. Geochim Cosmochim Acta 65:915–922

    Article  Google Scholar 

  • Sigman DM, Altabet MA, Michener R, McCorkle DC, Fry B, Holmes RM (1997) Natural abundance-level measurement of the nitrogen isotopic composition of oceanic nitrate: an adaptation of the ammonia diffusion method. Mar Chem 57:227–242

    Google Scholar 

  • Spoelstra J, Schiff SL, Hazlett PW, Jeffries DS, Semkin RG (2007) The isotopic composition of nitrate produced from nitrification in a hardwood forest floor. Geochim Cosmochim Acta 71:3757–3771

    Article  Google Scholar 

  • Statham PJ, Skidmore M, Tranter M (2008) Inputs of glacially derived dissolved and colloidal iron to the coastal ocean and implications for primary productivity. Glob Biogeochem Cycles 22:GB3013. doi:10.1029/2007GB003106

    Article  Google Scholar 

  • Tranter M (2005) Geochemical weathering in glacial and proglacial environments. In: Drever JI (ed) Treatise on geochemistry, vol 5, 189–205. Elsevier, Amsterdam, p 605

    Google Scholar 

  • Tranter M, Brown GH, Hodson AJ, Gurnell AM (1996) Hydrochemistry as an indicator of subglacial drainage system structure: a comparison of Alpine and sub-polar environments. Hydrol Process 10:541–556

    Article  Google Scholar 

  • Tranter M, Sharp MJ, Lamb H, Brown GH, Hubbard BP, Willis IC (2002) Geochemical weathering at the bed of Haut Glacier d’Arolla, Switzerland—a new model. Hydrol Process 16:959–993

    Article  Google Scholar 

  • Tye AM, Heaton THE (2007) Chemical and isotopic characteristics of weathering and nitrogen release in non-glacial drainage waters on Arctic tundra. Geochim Cosmochim Acta 71:4188–4205

    Article  Google Scholar 

  • Vincent WF, Hobbie JE, Laybourn-Parry J (2008) Introduction to the limnology of high latitude lake and river ecosystems. In: Vincent WF, Laybourn-Parry J (eds) Polar lakes and rivers—limnology of Arctic and Antarctic aquatic ecosystems, 1–23, Oxford, 327 pp

  • Wadham JL, Cooper RJ, Tranter M, Hodgkins R (2001) Enhancement of glacial solute fluxes in the proglacial zone of a polythermal glacier. J Glaciol 47:378–386

    Article  Google Scholar 

  • Wadham JL, Cooper RJ, Tranter M, Bottrell S (2007) Evidence for widspread anoxia in the proglacial zone of an Arctic glacier. Chem Geol 243:1–15

    Article  Google Scholar 

  • Watson AJ, Bakker DCE, Ridgwell AJ, Boyd PW, Law CS (2000) Effect of iron supply on Southern Ocean CO2 uptake and implications for glacial atmospheric CO2. Nature 407:730–733

    Article  Google Scholar 

  • Wynn PM, Hodson AJ, Heaton THE (2006) Chemical and isotopic switching within the subglacial environment of a high Arctic glacier. Biogeochemistry 78:173–193

    Article  Google Scholar 

  • Wynn PM, Hodson AJ, Heaton THE, Chenery SR (2007) Nitrate production beneath a High Arctic glacier, Svalbard. Chem Geol 244:88–102

    Article  Google Scholar 

  • Yde JC, Knudsen NT (2004) The importance of oxygen isotope provenance in relation to solute content of bulk meltwaters at Imersuaq Glacier, West Greenland. Hydrol Process 18:125–139

    Article  Google Scholar 

  • Yde JC, Knudsen NT, Nielsen OB (2005) Glacier hydrochemistry, solute provenance, and chemical denudation at a surge-type glacier in Kuannersuit Kuussuat, Disko Island, West Greenland. J Hydrol 300:172–187

    Article  Google Scholar 

  • Yde JC, Riger-Kusk M, Christiansen HH, Knudsen NT, Humlum O (2008) Hydrochemical characteristics of bulk meltwater fram an entire ablation season, Longyearbreen, Svalbard. J Glaciol 54:259–272

    Article  Google Scholar 

  • Yde JC, Knudsen NT, Hasholt B, Mernild SH (2009) Chemical weathering and solute provenance in a glacierised maritime catchment: Mittivakkat Gletscher, Southeast Greenland. Chem Geol (in press)

Download references

Acknowledgments

Hodson acknowledges a NERC AFI (CGS4/08) award and a National Geographic Exploration and Research Committee award for supporting his field work. Judith Brown, Simon Herniman and Bill Crowe are thanked for help with the field and lab work, whilst NERC BGS Steering Committee award (IP/776/0503) is acknowledged for the isotope support. A Leverhulme Research Fellowship is acknowledged for allowing time for Hodson to complete the manuscript, which was then improved by two anonymous reviewers.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Andy Hodson.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hodson, A., Heaton, T., Langford, H. et al. Chemical weathering and solute export by meltwater in a maritime Antarctic glacier basin. Biogeochemistry 98, 9–27 (2010). https://doi.org/10.1007/s10533-009-9372-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10533-009-9372-2

Keywords

Navigation