Fish remains from Homestead Cave and lake levels of the past 13,000 years in the Bonneville basin
Quaternary Research
By: J.M. Broughton, D.B. Madsen, and Jay Quade
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Abstract
A late Quaternary ichthyofauna from Homestead Cave, Utah, provides a new source of information on lake history in the Bonneville basin. The fish, represented by 11 freshwater species, were accumulated between ~11,200 and ~1000 14C yr B.P. by scavenging owls. The 87Sr/86Sr ratio of Lake Bonneville varied with its elevation; 87Sr/86Sr values of fish from the lowest stratum of the cave suggest they grew in a lake near the terminal Pleistocene Gilbert shoreline. In the lowest deposits, a decrease in fish size and an increase in species tolerant of higher salinities or temperatures suggest multiple die-offs associated with declining lake levels. An initial, catastrophic, post-Provo die-off occurred at 11,300-11,200 14C yr B.P. and was followed by at least one rebound or recolonization of fish populations, but fish were gone from Lake Bonneville sometime before ~10,400 14C yr B.P. This evidence is inconsistent with previous inferences of a near desiccation of Lake Bonneville between 13,000 and 12,000 14C yr B.P. Peaks in Gila atraria frequencies in the upper strata suggest the Great Salt Lake had highstands at ~3400 and ~1000 14C yr B.P. (C) 2000 University of Washington.
Suggested Citation
Broughton, J., Madsen, D., Quade, J., 2000, Fish remains from Homestead Cave and lake levels of the past 13,000 years in the Bonneville basin: Quaternary Research, v. 53, no. 3, p. 392-401, https://doi.org/10.1006/qres.2000.2133.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Fish remains from Homestead Cave and lake levels of the past 13,000 years in the Bonneville basin |
| Series title | Quaternary Research |
| DOI | 10.1006/qres.2000.2133 |
| Volume | 53 |
| Issue | 3 |
| Publication Date | January 20, 2017 |
| Year Published | 2000 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Quaternary Research |
| First page | 392 |
| Last page | 401 |