Isotopic composition of vent discharge from the Matanuska Glacier, Alaska

Implications for the origin of basal ice

Daniel D. Titus, Grahame J. Larson, Jeffrey C. Strasser, Daniel E. Lawson, Edward B. Evenson, Richard B. Alley

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The 18 O, D composition, and 3H activity was measured in subglacial discharge samples collected during the summer of 1995 from vents along the margin of the Matanuska Glacier, Alaska. Application of a simple open two-component reservoir model indicates that 18 δO, δD, and 3H activity for discharge are within the requisite ranges to form basal ice, and that there is a genetic relationship between the two. Additionally, the temporal variability of δ 18 O in the basal ice can be attributed to relative amounts of meltwater and rainfall runoff present in the subglacial discharge.

Original languageEnglish (US)
Pages (from-to)37-44
Number of pages8
JournalSpecial Paper of the Geological Society of America
Volume337
DOIs
StatePublished - Jan 1 1999

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basal ice
glacier
isotopic composition
meltwater
runoff
rainfall
summer

All Science Journal Classification (ASJC) codes

  • Geology

Cite this

Titus, Daniel D. ; Larson, Grahame J. ; Strasser, Jeffrey C. ; Lawson, Daniel E. ; Evenson, Edward B. ; Alley, Richard B. / Isotopic composition of vent discharge from the Matanuska Glacier, Alaska : Implications for the origin of basal ice. In: Special Paper of the Geological Society of America. 1999 ; Vol. 337. pp. 37-44.
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Isotopic composition of vent discharge from the Matanuska Glacier, Alaska : Implications for the origin of basal ice. / Titus, Daniel D.; Larson, Grahame J.; Strasser, Jeffrey C.; Lawson, Daniel E.; Evenson, Edward B.; Alley, Richard B.

In: Special Paper of the Geological Society of America, Vol. 337, 01.01.1999, p. 37-44.

Research output: Contribution to journalArticle

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