| Abstract: | The coarse, non-clay fraction of many flint-like kaolinitic claystones often contains mineral grains diagnostic of the claystone‘s origin and, in the case of tonsteins (altered volcanic ashes), may also provide minerals suitable for radiometric dating. Separation of the non-clay mineral fraction is often difficult because flint clays and flint-like clays resist slaking in water and thus are difficult to disaggregate. Chemical disaggregation of resistant kaolinitic claystones may be achieved by immersion in either hydrazine monohydrate or DMSO for periods ranging from one day to several weeks. Generally, hydrazine monohydrate works more quickly and efficiently than DMSO to disaggregate most kaolinitic claystones and flint clays. |
| Genre: | Article |
| ProdID: | 70024006 |
| Citation Author: | Triplehorn, D. M.; Bohor, B. F.; Betterton, W. J. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 770 |
| Citation Issue: | 6 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Clays and Clay Minerals |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 5 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Chemical disaggregation of kaolinitic claystones (tonsteins and flint clays); 2002; Article; Journal; Clays and Clay Minerals; Triplehorn, D. M.; Bohor, B. F.; Betterton, W. J. |
| Citation Start Page: | 766 |
| Citation Volume: | 50 |
| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Chemical disaggregation of kaolinitic claystones (tonsteins and flint clays); 2002; Article; Journal; Clays and Clay Minerals; Triplehorn, D. M.; Bohor, B. F.; Betterton, W. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1346/000986002762090164 |
| Date Other: | Tue, 1 Jan 2002 00:00 -0600 |
| Publisher: | |
