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Oxalic-acid leaching of rock, soil, and stream-sediment samples as an anomaly-accentuated technique

Open-File Report 76-275

By:
and

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Abstract

In many instances total-rock and sieved-soil and stream-sediment samples lack the sensitivity and contrast required for reconnaissance exploration and necessary in the search for blind ore deposits. Heavy-mineral concentrates incorporate the required sensitivity and contrast but are overly expensive for two reasons: time-consuming sample preparation is required to obtain them, and they cannot be easily derived from all bulk-sample types. Trace-metal-content comparisons of the oxalic-acid-leachable portions with heavy-mineral concentrates show that the leachates are equal to the heavy-mineral concentrates in sensitivity and contrast. Simplicity of preparation and the resultant cost savings are additional advantages of this proposed method.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Oxalic-acid leaching of rock, soil, and stream-sediment samples as an anomaly-accentuated technique
Series title:
Open-File Report
Series number:
76-275
Edition:
-
Year Published:
1976
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
25 leaves :ill. ;27 cm.