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Title: Chlorine-36 tracing of salinity sources in the dry valleys of Victoria land, Antarctica

Abstract

Chlorine-36 was used to trace the origins of salts in six saline lakes in the Dry Valleys of Southern Victoria Land, Antarctica. Characteristic {sup 36}Cl signatures were estimated for the various potential chloride sources, which include atmospheric deposition, rock weathering, seawater, and deep ground water. {sup 36}Cl/Cl ratios were measured in natural waters and salts from the Dry Valleys. Dilute lake waters (Cl{sup {minus}} < 100 mg/l) were found to have {sup 36}Cl/Cl ratios in the range 100 {times} 10{sup {minus}15} to 1,700 {times} 10{sup {minus}15}, whereas saline waters (Cl{sup {minus}} > 1000 mg/l) had ratios in the range 9 {times} 10{sup {minus}15} to 40 {times} 10{sup {minus}15}. Simple mixing models were employed to quantify the relative contributions of the various chloride sources to Lake Vanda and Don Juan Pond. These results show that Lake Vanda has received its chloride from both deep ground water and the Onyx River. Don Juan Pond has received nearly all its chloride from deep ground water, probably ultimately from rock-water interaction. Deep ground water is the principal sources of chloride to the lakes of Wright Valley. However, preliminary data suggest that marine-derived salts or relict sea water may be a significant sources of chloridemore » to the lakes of Taylor Valley, implying a possible recent marine invasion that did not affect Wright Valley.« less

Authors:
;  [1];  [2];  [3]
  1. New Mexico Institute of Mining and Technology, Socorro (USA)
  2. Purdue Univ., West Lafayette, IN (USA)
  3. Univ. of Arizona, Tucson (USA)
Publication Date:
OSTI Identifier:
7024378
Resource Type:
Journal Article
Journal Name:
Geochimica et Cosmochimica Acta; (USA)
Additional Journal Information:
Journal Volume: 54:2; Journal ID: ISSN 0016-7037
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; ANTARCTICA; SALT DEPOSITS; CHEMICAL COMPOSITION; ORIGIN; CHLORINE 36; CONCENTRATION RATIO; DEPOSITION; GEOCHEMISTRY; GROUND WATER; ISOTOPE RATIO; LAKES; PRECIPITATION; SALINITY; ANTARCTIC REGIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMISTRY; CHLORINE ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; GEOLOGIC DEPOSITS; HYDROGEN COMPOUNDS; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-ODD NUCLEI; OXYGEN COMPOUNDS; POLAR REGIONS; RADIOISOTOPES; SEPARATION PROCESSES; SURFACE WATERS; WATER; YEARS LIVING RADIOISOTOPES; 580000* - Geosciences

Citation Formats

Carlson, C A, Phillips, F M, Elmore, D, and Bentley, H W. Chlorine-36 tracing of salinity sources in the dry valleys of Victoria land, Antarctica. United States: N. p., 1990. Web. doi:10.1016/0016-7037(90)90320-K.
Carlson, C A, Phillips, F M, Elmore, D, & Bentley, H W. Chlorine-36 tracing of salinity sources in the dry valleys of Victoria land, Antarctica. United States. https://doi.org/10.1016/0016-7037(90)90320-K
Carlson, C A, Phillips, F M, Elmore, D, and Bentley, H W. 1990. "Chlorine-36 tracing of salinity sources in the dry valleys of Victoria land, Antarctica". United States. https://doi.org/10.1016/0016-7037(90)90320-K.
@article{osti_7024378,
title = {Chlorine-36 tracing of salinity sources in the dry valleys of Victoria land, Antarctica},
author = {Carlson, C A and Phillips, F M and Elmore, D and Bentley, H W},
abstractNote = {Chlorine-36 was used to trace the origins of salts in six saline lakes in the Dry Valleys of Southern Victoria Land, Antarctica. Characteristic {sup 36}Cl signatures were estimated for the various potential chloride sources, which include atmospheric deposition, rock weathering, seawater, and deep ground water. {sup 36}Cl/Cl ratios were measured in natural waters and salts from the Dry Valleys. Dilute lake waters (Cl{sup {minus}} < 100 mg/l) were found to have {sup 36}Cl/Cl ratios in the range 100 {times} 10{sup {minus}15} to 1,700 {times} 10{sup {minus}15}, whereas saline waters (Cl{sup {minus}} > 1000 mg/l) had ratios in the range 9 {times} 10{sup {minus}15} to 40 {times} 10{sup {minus}15}. Simple mixing models were employed to quantify the relative contributions of the various chloride sources to Lake Vanda and Don Juan Pond. These results show that Lake Vanda has received its chloride from both deep ground water and the Onyx River. Don Juan Pond has received nearly all its chloride from deep ground water, probably ultimately from rock-water interaction. Deep ground water is the principal sources of chloride to the lakes of Wright Valley. However, preliminary data suggest that marine-derived salts or relict sea water may be a significant sources of chloride to the lakes of Taylor Valley, implying a possible recent marine invasion that did not affect Wright Valley.},
doi = {10.1016/0016-7037(90)90320-K},
url = {https://www.osti.gov/biblio/7024378}, journal = {Geochimica et Cosmochimica Acta; (USA)},
issn = {0016-7037},
number = ,
volume = 54:2,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 1990},
month = {Thu Feb 01 00:00:00 EST 1990}
}