title: Hydrology of the lakes in Central Wohlthat Massif, East Antarctica: new results.
abstract: In 1983/1984, in the course of the 28th Soviet Antarctic Expedition, waterbody, ice cover, and surrounding glaciers of the lakes Untersee and Obersee were sampled along some depth profiles. The geochemical data of those samples, now available, show the homogeneity of both large lakes in vertical (down to the maximum depth) as well as in lateral directions. The comparison of isotope and chemical composition of lake water and adjoining glacier ice suggests strong differences in the long-term evolution between the lakes Untersee and Obersee. First data from a lakelet, embedded in the large morainic area to the west of Lake Untersee, are of special interest: the δ(2)H values of the lakelet water are lower than those of recent regional glacier ice by 50‰ SMOW. This fact indicates that the lakelet is fed episodically by Pleistocene dead ice, covered by the morainic material.
authors.affiliation: Zentralinstitut für Isotopen- und Strahlenforschung, Akademie der Wissenschaften der DDR, Leipzig, Germany.
authors.forename: Dietmar
authors.initials: D
authors.lastname: Haendel
authors.forename: Wolf-Dieter
authors.initials: WD
authors.lastname: Hermichen
authors.forename: Reiner
authors.initials: R
authors.lastname: Höfling
authors.forename: Peter
authors.initials: P
authors.lastname: Kowski
mesh_terms: D000864:Antarctic Regions; D003903:Deuterium / Q000032:analysis; D046448:Ice Cover; D060106:Lakes / Q000032:analysis*; D010103:Oxygen Isotopes / Q000032:analysis
chemical_list: D010103:Oxygen Isotopes; D003903:Deuterium