High-precision provenance determination using detrital-zircon ages and petrography of Quaternary sands on the eastern Snake River Plain, Idaho
Geslin JK, Link PK, Fanning CM. 1999. High-precision provenance determination using detrital-zircon ages and petrography of Quaternary sands on the eastern Snake River Plain, Idaho. Geology. 27(4):295-298
Provenance data from subsurface sands indicate that the Big Lost trough was supplied with sand largely deposited by the Big Lost River, with local redeposition by eolian processes, similar to the modern depositional system. Provenance and stratigraphic data suggest that during Pleistocene wet climate cycles, the center of the basin was dominated by lacustrine sedimentation; during dry climate cycles, the base level dropped. the Big Lost River prograded across the basin. and the eolian system became active. At least sewn climate oscillations are recorded in strata deposited between -140 and -1250 ka.
- Type
- Journal Article
- Authors
- Geslin, Jeffrey; Link, Paul; Fanning, C.
- Units
- CRMO
- Keywords
- absolute age, Butte County Idaho, Cenozoic, Clark County Idaho, clastic sediments, Idaho, Jefferson County Idaho, Neogene, nesosilicates, orthosilicates, paleoclimatology, Pliocene, Quaternary, sand, sediments, silicates, Snake River plain, SRP, Tertiary, U/Pb, United States, zircon, zircon group