A Pilot Study of Holocene Tephrochronology and Spring Paleoecology in the Kawich Range, Nevada Test and Training Range, Nellis Air Force Base, Nevada

Part of the Nellis Air Force Base (DRAFT) project

Author(s): Jill Onken

Year: 2007

Summary

Seven springs in the northern Kawich Range were investigated to determine whether Holocene volcanic ash layers exist in alluvial deposits within the Nevada Test and Training Range (NTTR). Although no discrete ash layers were visible in the exposures studied, microtephra analysis of sediment samples collected at Rose Spring and Cedar Spring revealed the presence of varying concentrations of ash shards. Radiocarbon dating and stratigraphic relationships suggest that both Mono-Inyo Craters and Mazama ashes could be present, potentially extending the known geographic distribution of these ashes. Future studies should include geochemical characterization and tephra hydration analysis of these ashes to establish which volcanic events produced them. These ashes, although probably reworked, have potential to help date and correlate archaeological deposits on the NTTR.

Cite this Record

A Pilot Study of Holocene Tephrochronology and Spring Paleoecology in the Kawich Range, Nevada Test and Training Range, Nellis Air Force Base, Nevada. Jill Onken. Tucson, Arizona: Statistical Research, Inc. 2007 ( tDAR id: 456092) ; doi:10.6067/XCV8456092

This Resource is Part of the Following Collections

Keywords

Material
Dating Sample • Macrobotanical • Pollen • Volcanic Ash

Investigation Types
Environment Research • Reconnaissance / Survey

Geographic Keywords
Blackhawk Spring • Black Mountain • Cedar Spring • Clark (County) • Heenan Lake 7.5' • Kawich Range • Las Vegas, Nevada • Nellis Air Force Base, Nevada • Nevada (State / Territory) • Nye (County) • Rose Spring • United States of America (Country)

Temporal Keywords
Holocene

Spatial Coverage

min long: -117.728; min lat: 36.054 ; max long: -114.082; max lat: 38.36 ;

Individual & Institutional Roles

Contact(s): Nellis Air Force Base CRM Manager

Contributor(s): Owen K. Davis; Manuel R. Palacios-Fest; Lance Wollwage; Simon Blockley; Anna Oh

File Information

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nellis_tephro_combined.pdf 18.62mb Jun 22, 2020 12:30:21 AM Confidential

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Contact(s): Nellis Air Force Base CRM Manager