Other
Scientific paper
Apr 1967
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967gecoa..31..587s&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 31, Issue 4, pp.587-596
Other
7
Scientific paper
This work is a continuation of previous studies on the role of chelation as a weathering mechanism. Salicylate and several naturally-occurring chelating agents, in the form of free acids or their alkali salts, extracted Fe from goethite, hematite, magnetite, epidote, augite, biotite and granodiorite. The removal of Fe from granodiorite by salicylate was demonstrable within a matter of minutes and continued for 191 hr. K and Al were brought into solution when salicylate reacted with epidote, microcline and granodiorite. Salicylate and 8-hydroxy-quinoline extracted Fe from epidote in non-aqueous media. There was no direct correlation between pH and the dissolving action of various reagents. For this and other reasons, the results are interpreted as additional evidence implicating chelation as a weathering process.
Appelt H.
Schatz A.
Sohalscha E. B.
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