| Abstract: | The cherts formed from sodium silicate precursors in East African saline, alkaline lakes have ??18O values ranging from 31.1 to 44.1. The ??18O values correlate in general with lake salinities as inferred from geologic evidence, indicating that most chert was formed from its precursor in contact with lake water trapped at the time of deposition. A few of the analyzed cherts probably formed in contact with dilute meteoric water. From the widely varying ??18O values we conclude that precursors were transformed to chert in fluids of widely varying salinity and aNa+/aH+ ratio. ?? 1973. |
| Genre: | Article |
| ProdID: | 70010292 |
| Citation Author: | O'Neil, J. R.; Hay, R. L. |
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| Citation End Page: | 266 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Earth and Planetary Science Letters |
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| Citation Number Of Pages: | 10 |
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| Citation Search Results Text: | 18O 16O ratios in cherts associated with the saline lake deposits of East Africa; 1973; Article; Journal; Earth and Planetary Science Letters; O‘Neil, J. R.; Hay, R. L. |
| Citation Start Page: | 257 |
| Citation Volume: | 19 |
| Citation Year: | 1973 |
| Type: | citation/reference |
| Text: | 18O 16O ratios in cherts associated with the saline lake deposits of East Africa; 1973; Article; Journal; Earth and Planetary Science Letters; O‘Neil, J. R.; Hay, R. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1973 00:00 -0600 |
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