Published April 1, 1933
| Published
Journal Article
Open
Comparative tests of several methods of sampling heavy mineral concentrates
- Creators
- Otto, George H.
Abstract
When the total heavy mineral concentrate is larger than can be examined conveniently on a microscope slide, large sampling errors may he introduced during the selection of a portion for examination. Results are given of a series of tests, designed to ascertain both the most practical method of sampling very small amounts and the relative importance of various causes of sampling difficulties. New techniques for obtaining minute samples are described. The methods and conclusions may be applied to any mixtures of sand grade-sizes such as concentrates of microfossils.
Additional Information
© 1933 SEPM Society for Sedimentary Geology. The writer wishes to acknowledge the helpful advice of I. Campbell and R. Engel of the faculty of California Institute of Technology, and F. J. Pettijohn and W. C. Krumbein of the University of Chicago. The physics departments of both schools cooperated in permitting access to the facilities of the student shops.Attached Files
Published - 30.pdf
Files
30.pdf
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Additional details
- Eprint ID
- 99692
- Resolver ID
- CaltechAUTHORS:20191106-103537507
- Created
-
2019-11-06Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Other Numbering System Name
- Balch Graduate School of the Geological Sciences
- Other Numbering System Identifier
- 94