Airborne radar survey above Lake Vostok region, central East Antarctica. Evidence for open-system water exchange in subglacial Lake Vostok. Biochemical implications and geochemical significance of novel phospholipids of the extremely barophilic bacteria from the Marianas Trench at 11,000 m. Molecular archaeology of the Escherichia coli genome. Microflora of the deep glacier horizons of central Antarctica. Isolation of bacteria and 16S rDNAs from Lake Vostok accretion ice. Carbon transformations in the water column of a perennially ice-covered Antarctic Lake. Microbial diversity and function in Antarctic freshwater ecosystems. Sulphide oxidation under partially anoxic conditions at the bed of Haut Glacier d'Arolla, Switzerland. On the stability of air clathrate-hydrate crystals in subglacial Lake Vostok, Antarctica. Air hydrate crystals in deep ice-core samples from Vostok Station, Antarctica. Uchida, T., Hondoh, T., Mae, S., Lipenkov, V. A generalized model for calculating equilibrium states of gas hydrates. Geochemical weathering at the bed of Haut Glacier d'Arolla, Switzerland-a new model. Segregation of solutes and gases in experimental freezing of dilute solutions: implications for natural glacial systems. Water circulation and mass exchange within subglacial Lake Vostok. Application of a three-dimensional numerical model to Lake Vostok: An Antarctic subglacial lake. A priori estimates of mixing and circulation in the hard-to-reach water body of Lake Vostok. Geophysical and paleoclimatic implications of the stacked temperature profile from the deep borehole at Vostok station, Antarctica. Numerical modelling of ice-sheet dynamics across the Vostok subglacial lake, central East Antarctica.

Arktika i Antarktika 1 (in the press, 2001) (in Russian). Kolebaniya temperatury vozdukha i osadkov v rayone stantsii Vostok na protyazhenii chetyryeh klimaticheskih tsyklov za posledniye 420 tys. Problemy Arktiki i Antarktiki 72 (Jubilee issue), 197–236 (2000) (in Russian).īarkov, N. Isotoriya klimata i oledeneniya Antarktidy po rezul'tatam izucheniya ledanogo kerna so stantsii Vostok. Atmospheric transport of diatoms in the Antarctic Sirius Group: Pliocene deep freeze. Antarctic palaeoenvironments through Cenozoic times. Problemy Arktiki i Antarktiki 72 (Jubilee issue), 237–248 (2000) (in Russian).īarrett, P. Rezult'taty geofizicheskih issledovaniy podlednikovogo ozera Vostok (Antarktida) v 1995–1999 gg. Helium isotope in deep Vostok ice core (Antarctica): constraints on hydrothermal processes and water exchange in the subglacial lake. An analysis of the ice-sheet surface and subsurface topography above the Vostok Station subglacial lake, central East Antarctica. Ice-sheet radar layering and the development of preferred crystal orientation fabrics between Lake Vostok and Ridge B, central East Antarctica.

Water exchange between the subglacial Lake Vostok and the overlying ice sheet. The dimensions and topographic setting of Antarctic subglacial lakes and implications for large-scale water storage beneath continental ice sheets. Penetration of Antarctic subglacial water masses by VHF electromagnetic pulses: estimates of minimum water depth and conductivity. A large deep freshwater lake beneath the ice of central East Antarctica. Ice formation in subglacial Lake Vostok, Central Antarctica. Geomicrobiology of subglacial ice above Lake Vostok, Antarctica. Microorganisms in the accreted ice of Lake Vostok, Antarctica. More than 200 meters of lake ice above subglacial Lake Vostok, Antarctica. Climate atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. An inventory of Antarctic subglacial lakes. Microbes found in Lake Vostok's accreted ice are relatively modern, but the probability of ancient lake-floor sediments leads to a possibility of a very old biota at the base of subglacial lakes. Importantly, dissolved oxygen is available at least at the lake surface, from equilibration with air hydrates released from melting basal glacier ice. Any microbes present must therefore use chemical sources to power biological processes. All subglacial lakes are subject to high pressure ( ∼350 atmospheres), low temperatures (about -3 ☌) and permanent darkness. These findings suggest that Lake Vostok is an extreme, yet viable, environment for life. Although water from none of the lakes has been sampled directly, analysis of lake ice frozen (accreted) to the underside of the ice sheet above Lake Vostok, the largest of these lakes, has allowed inferences to be made on lake water chemistry and has revealed small quantities of microbes. Over 70 lakes have now been identified beneath the Antarctic ice sheet.

Physical and chemical processes