Stable sulfur isotope hydrogeochemical studies using desert shrubs and tree rings, Death Valley, California, USA

Details Stable sulfur isotope hydrogeochemical studies using desert shrubs and tree rings, Death Valley, California, USA Stable sulfur isotope hydrogeochemical studies using desert shrubs and tree rings, Death Valley, California, USA

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996gecoa..60.3015y&link_type=abstract

Geochimica et Cosmochimica Acta, Volume 60, Issue 16, p. 3015-3022.

Physics

2

Scientific paper

The δ34S values of two dominant xerophytes, Atriplex hymenehytra and Larrea tridentata, in Death Valley, California, vary similarly from +7 to +18‰, corresponding isotopically to sulfate in the water supplies at a given location. Going radially outwards, tree ring data from a phreatophyte tree, Tamarix aphylla, show a distinct time dependence, with δ34S values increasing from +13.5 to +18‰ for soluble sulfate and from +12 to +17‰ for total sulfur. These data are interpreted in terms of sulfur sources, water sources and flow paths, and tree root growth.

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