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Stable sulfur isotopes of sulfate in precipitation and stream solutions in a northern hardwood watershed

Journal Article · · Water Resources Research; (United States)
DOI:https://doi.org/10.1029/91WR02481· OSTI ID:5243350
;  [1];  [2];  [3]
  1. State Univ. of New York, Syracuse (United States)
  2. Univ. of Calgary, Alberta (Canada)
  3. Univ. of Maine, Orono (United States)
Stable S isotopes of SO{sup 2{minus}}{sub 4} in precipitation, throughfall, and stream water solutions in a northern hardwood watershed (Bear Brook Watershed, Maine) were examined to determine sources of stream SO{sup 2{minus}}{sub 4} and to identify watershed processes that may affect atmospherically deposited SO{sup 2{minus}}{sub 4} prior to reaching the streams. Similarity among temporal patterns in {delta}{sup 34}S of precipitation, throughfall, stream SO{sup 2{minus}}{sub 4} indicate that the {delta}{sup 34}S values of stream SO{sup 2{minus}}{sub 4} are controlled principally by atmospheric deposition. Lack of correlation between {delta}{sup 34}S of stream SO{sup 2{minus}}{sub 4} and stream (SO{sup 2{minus}}{sub 4}{sub total}), elevational position, and stream discharge supports the interpretation that fractionation of stable S isotopes within the watershed appears to have, at most, a minor influence on {delta}{sup 34}S of stream SO{sup 2{minus}}{sub 4}.
OSTI ID:
5243350
Journal Information:
Water Resources Research; (United States), Journal Name: Water Resources Research; (United States) Vol. 28:1; ISSN 0043-1397; ISSN WRERA
Country of Publication:
United States
Language:
English