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Solute profiles in soils, weathering gradients and exchange equilibrium/disequilibrium

Dates

Year
2008

Citation

White, A F, Schulz, M S, Stonestrom, D A, Vivit, D V, Fitzpatrick, J, and Bullen, T, 2008, Solute profiles in soils, weathering gradients and exchange equilibrium/disequilibrium: Mineralogical Magazine, v. 72, iss. 1, p. 149-153.

Summary

The spatial and temporal changes in hydrology and pore water elemental and 87/86Sr compositions were used to determine contemporary weathering rates in a 65 to 226 ky old soil chronosequence formed from granitic sediments deposited on marine terraces along coastal California. Cl-corrected Na, K and Si increased with depth denoting inputs from the weathering of plagioclase and K-feldspar. Solute 87/86Sr exhibited progressive mixing of sea water-dominated precipitation with inputs from less radiogenic plagioclase. Linear approximations to these weathering gradients were used to determine plagioclase weathering rates of between 0.38 and 8.9 × 10−15 moles m−2 s−1. The lack of corresponding weathering gradients for Ca and Sr indicated short-term [...]

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  • USGS National Research Program

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Added to ScienceBase on Thu Apr 18 09:04:01 MDT 2013 by processing file <b>Environmental Tracers of Surface-Water - Ground-Water Interactions (Constantz:Stonestrom).xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216b9e4b04b508bfd337d">https://www.sciencebase.gov/catalog/item/504216b9e4b04b508bfd337d</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1180/minmag.2008.072.1.149

Citation Extension

citationTypeJournal Article
journalMineralogical Magazine
parts
typePages
value149-153
typeVolume
value72
typeIssue
value1

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