Browsing ELibrary by Subject "LAKES"

Now showing items 1-6 of 6

A REVIEW OF THE OXYGEN ISOTOPE COMPOSITION OF LACUSTRINE DIATOM SILICA FOR PALAEOCLIMATE RECONSTRUCTION

Leng M.J.; Barker P.A. (2006)

Diatom silica (frustules) are a form of biogenic opal and contain oxygen isotopes that are being increasingly used in palaeoclimate studies. Frustules are comprised of an inner tetrahedrally bonded silica skeleton (Si-O-Si) ...
CENTRAL RING STRUCTURE IDENTIFIED IN ONE OF THE WORLD'S BEST-PRESERVED IMPACT CRATERS

Gebhardt A.C.; Niessen F.; Kopsch C. (2006)

Seismic refraction and reflection data were acquired in 2000 and 2003 to study the morphology and sedimentary fill of the remote El'gygytgyn crater (Chukotka, northeastern Siberia; diameter 18 km). These data allow a first ...
CONCENTRATION, MOLECULAR WEIGHT DISTRIBUTION AND NEUTRAL SUGAR COMPOSITION OF DOC IN MARITIME ANTARCTIC LAKES OF DIFFERING TROPHIC STATUS

Quayle W.C.; Convey P. (2006)

The molecular weight distributions and hydrolysable neutral sugar composition of dissolved organic carbon (DOC) was investigated in four maritime Antarctic lakes on Signy Island of different trophic status; Heywood Lake ...
GEOCHRONOLOGY AND STRATIGRAPHY OF LATE PLEISTOCENE LAKE CYCLES ON THE SOUTHERN BOLIVIAN ALTIPLANO: IMPLICATIONS FOR CAUSES OF TROPICAL CLIMATE CHANGE

Placzek C.; Quade J.; Patchett P.J. (2006)

Large paleolakes (~33,000-60,000 km2) that once occupied the high-altitude Poopo, Coipasa, and Uyuni Basins in southern Bolivia (18-22°S) provide evidence of major changes in low-latitude moisture. In these now-dry or ...
MEASURING GRAVITY ON ICE: AN EXAMPLE FROM WANAPITEI LAKE, ONTARIO, CANADA

Ugalde H.A.; L'Heureux E.; Milkereit B.; Lachapelle R. (2006)

Large lakes have always represented a problem for regional gravity databases; the difficulty of access means gaps or coarse spacing in the sampling. Satellite, airborne, and shipborne gravity techniques are options, but ...
SHORT-TERM EVAPORATION AND WATER BUDGET COMPARISONS IN SHALLOW ARCTIC LAKES USING NON-STEADY ISOTOPE MASS BALANCE

Gibson J.J. (2002)

Shallow lakes in a continental, low Arctic setting are found to undergo substantial fluctuations in heavy-isotope content during the annual cycle due to extreme seasonality in water balance processes. Progressive isotope ...

Browsing ELibrary by Subject "LAKES"

Browsing ELibrary by Subject "LAKES"

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