Otto, George H. (1933) Comparative tests of several methods of sampling heavy mineral concentrates. Journal of Sedimentary Research, 3 (1). pp. 30-39. ISSN 1527-1404. doi:10.1306/D4268E3C-2B26-11D7-8648000102C1865D. https://resolver.caltech.edu/CaltechAUTHORS:20191106-103537507
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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.
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| 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. | ||||||
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| Issue or Number: | 1 | ||||||
| DOI: | 10.1306/D4268E3C-2B26-11D7-8648000102C1865D | ||||||
| Record Number: | CaltechAUTHORS:20191106-103537507 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20191106-103537507 | ||||||
| Official Citation: | George Herman Otto; Comparative tests of several methods of sampling heavy mineral concentrates. Journal of Sedimentary Research; 3 (1): 30–39. doi: https://doi.org/10.1306/D4268E3C-2B26-11D7-8648000102C1865D | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 99692 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 06 Nov 2019 19:21 | ||||||
| Last Modified: | 16 Nov 2021 17:48 |
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