Abstract
National Science Foundation (NSF, grants OPP-0838933, 1346250, and 1439774); Italian National Antarctic Program (Barbante); graduate fellowships from the NSF Integrative Graduate Education and Research Traineeship program (0654336) and NSF Center for Dark Energy Biosphere Investigations; dissertation grant from the American Association of University Women
Highlights
Research over the past two decades has demonstrated abundant water beneath the Antarctic ice sheets, with subglacial water volume estimates of 104–105 km3 (Priscu et al, 2008)
Water beneath the West Antarctic Ice Sheet (WAIS) resides and flows in hydrologic networks of streams, lakes, and saturated sediment, leading to prolonged water-rock interactions and solute generation, with the waters draining to the ocean (Fricker et al, 2007; Skidmore et al, 2010; Carter and Fricker, 2012)
The Cl– concentration profile is consistent with the stable isotope data indicating that the pore waters and solutes are partially derived from seawater
Summary
Research over the past two decades has demonstrated abundant water beneath the Antarctic ice sheets, with subglacial water volume estimates of 104–105 km (Priscu et al, 2008). Water beneath the West Antarctic Ice Sheet (WAIS) resides and flows in hydrologic networks of streams, lakes, and saturated sediment, leading to prolonged water-rock interactions and solute generation, with the waters draining to the ocean (Fricker et al, 2007; Skidmore et al, 2010; Carter and Fricker, 2012). These subglacial aqueous environments represent a source of suspended and dissolved biotic and abiotic components and fresh water to the Southern Ocean with potential impacts on ocean productivity, geochemistry, and circulation (Priscu et al, 2008; Statham et al, 2008).
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