Skip to main content Accessibility help
×
Home

Glacial Sequence Near McCall, Idaho: Weathering Rinds, Soil Development, Morphology, and Other Relative-Age Criteria

  • Steven M. Colman (a1) and Kenneth L. Pierce (a1)

Abstract

The sequence of glacial deposits near McCall, Idaho, previously assigned to the Pinedale and Bull Lake glaciations, contains deposits of four different ages. These ages are defined by multiple relative-age criteria, including weathering rinds, soil development, surface-rock weathering, morainal morphology, and loess stratigraphy. The thickness of weathering rinds on basaltic clasts is statistically representative and reproducible and can be used to estimate numerical ages. Following in order of decreasing relation to age are soil development, surface-rock weathering, and moraine morphology. The glacial deposits near McCall appear to correspond to times of high worldwide ice volume indicated by the marine oxygen-isotope record. Pilgrim Cove and McCall deposits, both assigned to the Pinedale glaciation, are late Wisconsin in age, perhaps 14,000 and 20,000 years, respectively. They represent a rare case in which deposits of Pinedale age can be separated by relative-age data. Timber Ridge deposits, assigned to the Bull Lake glaciation, have subdued, but well-preserved morainal morphology; relative-age data indicate that they are pre-Wisconsin in age, probably about 140,000–150,000 years old, although we cannot exclude an older age. Williams Creek deposits are clearly distinct from, and intermediate in age between, McCall and Timber Ridge deposits. Weathering rinds and the inferred ages of the other deposits suggest an early Wisconsin age for Williams Creek deposits.

Copyright

References

Hide All
Binkeland, P. W. 1984 Soils and Geomorphology, Oxford Univ. Press New York
Birkeland, P. W., Colman, S. M., Burke, R. M., Shroba, R. R., Meierding, T. C. 1979 Nomenclature of alpine glacial deposits—or what's in a name. Geology, 7 532 536
Bucknam, R. C., Anderson, R. E. 1979 Estimation of fault-scarp ages from a scarp-height-slope-angle relationship. Geology, 7 11 14
Burke, R. M., Birkeland, P. W. 1979 Reevaluation of multiparameter relative dating techniques and their application to the glacial sequence along the eastern escarpment of the Sierra Nevada. California. quaternary Research, 11 21 51
Colman, S. M. 1981 Rock-weathering rates as functions of time. Quaternary Research, 15 250 264
Colman, S. M. 1982a Chemical Weathering of Basalts and Andesites—Evidence from Weathering Rinds, U.S. Geological Survey Professional Paper 1246
Colman, S. M. 1982b Clay mineralogy of weathering rinds and possible implications for sources of clay minerals in soils. Geology, 10 370 375
Colman, S. M., Pierce, K. L. 1981 Weathering Rinds on Basaltic and Andesitic Stones as a Quaternary Age indicator, Western United States, U.S. Geological Survey Professional Paper 1210
Colman, S. M., Watson, K. 1983 Diffusion-equation model for scarp degradation. Science (Washington, D.C.), 221 263 265
Evenson, E. B., Cotter, J. F. P., Clinch, J. M. 1982 Glaciation of the Pioneer Mountains: A proposed model for Idaho. Bonnichsen, W., Breckenridge, R. M. Cenozoic Geology of Idaho, Vol. 26 653 667 Idaho Geological Survey Bulletin
Fryxell, R., Richmond, G. M., Malde, H. E. 1965 Part G: The canyons of western Idaho, the Snake River Plain, and the Bonneville flood. Schultz, C. B., Smith, H. T. U. Guidebook for Field Conference E, Northern and Middle Rocky Mountains, Vol. 6 Nebraska Academy of Sciences Lincoln, Nebraska 90 91 INQUA Congress
Gilbert, J. D., Piety, L. A. 1983 Late Cenozoic faulting in southwestern Idaho. Geological Society of America Abstracts with Programs, 15 376
Guthrie, R. L., Witty, J. E. 1982 New designations for soil horizons and layers and the new Soil Survey Manual . Soil Science Society of America Journal, 46 443 444
Harden, J. W. 1982 A quantitative index of soil development from field descriptions. Examples from a chronosequence in central California. Geoderma, 28 1 28
Hays, J. D., Imbrie, J., Schackleton, N. J. 1976 Variations in the earth's orbit—pacemaker of the ice ages. Science (Washington, D.C.), 194 1121 1132
Madole, R. F., Shroba, R. R. 1979 Till sequence and soil development in the North St. Vrain Drainage Basin, east slope, Front Range, Colorado. Ethridge, F. G. Guidebooks for Field Trips, . 1979 Rocky Mountain Section Meeting, Geological Society of America.123 180
Nash, D. 1980 Morphological dating of degraded normal fault scarps. Journal of Geology, 88 353 360
Pierce, K. L. 1979 History and Dynamics of Glaciation of the Northern Yellowstone Park Area, U.S. Geological Survey Professional Paper 729-F
Pierce, K. L., Obradovich, J. D., Friedman, I. 1976 Obsidian hydration dating and correlation of Bull Lake and Pinedale Glaciations near West Yellowstone, Montana. Geological Society of America Bulletin, 87 703 710
Porter, S. C., Pierce, K. L., Hamilton, T. D. 1983 Late Wisconsin mountain glaciation in the western United States. Porter, S. C. Late Quaternary Environments of the United States, Vol. 1 Univ. of Minnesota Press Minneapolis 71 111 “The Late Pleistocene”
Schmidt, D. L., Mackin, J. H. 1970 Quaternary Geology of Long and Bear Valleys, West-Central Idaho, U.S. Geological Survey Bulletin 1311-A
Shackleton, N. J., Opdyke, N. D. 1973 Oxygen isotope and paleomagnetic stratigraphy of Equatorial Pacific core V28-238—oxygen isotope temperatures and ice volumes on a 105 and 106 year scale. Quaternary Research, 3 39 55
Shroba, R. R. 1977 Soil Development in Quaternary Tills, Rock-Glacier Deposits, and Taluses, Southern and Central Rocky Mountains. Ph.D. thesis, University of Colorado
Shroba, R. R. 1984 Secondary clay content and estimated rates of clay accumulation in soil B horizons in tills of Holocene and Pleistocene age, Southern and Central Rocky Mountains. Program and Abstracts, American Quarternary Association, Eighth Biennial Meeting, 117
Shroba, R. R., Rosholt, J. N., Madole, R. F. 1983 Uranium-trend dating and soil B horizon properties of till of Bull Lake age, North St. Vrain Drainage Basin, Front Range, Colorado. Geological Society of America Abstracts with Programs, 15 431

Glacial Sequence Near McCall, Idaho: Weathering Rinds, Soil Development, Morphology, and Other Relative-Age Criteria

  • Steven M. Colman (a1) and Kenneth L. Pierce (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed