Mathematics – Logic
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept..219g&link_type=abstract
In NASA. Washington Repts. of Planetary Geol. Program p 219-221 (SEE N84-23431 13-91)
Mathematics
Logic
1
Antarctic Regions, Deserts, Mars (Planet), Mars Surface, Salinity, Sodium Chlorides, Valleys, Analogs, Brines, Bromides, Concentration (Composition), Evaporation, Ground Water, Lakes, Ratios, Sea Water, Soils
Scientific paper
The Dry Valleys of Antarctica are examples of polar deserts which are rare geological features on the Earth. Such deserts typically have high salinities associated with their closed-basin waters and on many surficial materials throughout them. In order to examine the possible sources for the salts observed in association with the soils in the Dry Valleys. The chloride and bromide concentrations of the water leachates from 58 soils and core samples were measured. The Cl/Br ratio for seawater is 289 and ratios measured for most of the 58 soils studied (greater than 85% of the soils studied) was larger than the seawater ratio (ratios typically were greater than 1000 and ranged up to 50,000). The enrichment in Cl relative to Br is strong evidence that the alts present within the soils were derived from seawater during ordinary evaporation processes, and not from the deposition of Cl and Br from aerosols or from rock weathering as has often been suggested.
Gibson Everett K. Jr.
Hatfield J.
Presley Bob J.
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