Surficial Geologic Map of the Spirit Mountain SE and part of the Spirit Mountain NE 7.5’ Quadrangles, Nevada and Arizona
Links
- Document: Pamphlet (18.6 MB pdf)
- Sheet: Map (22.1 MB pdf)
- Database: Database (73.8 MB zip)
- Metadata:
- Read Me: Read Me (3 KB txt)
- Download citation as: RIS | Dublin Core
Abstract
This geologic map includes a trove of stratigraphic and geomorphic information that chronicles the inception and evolution of the lower Colorado River. The map area is located near the south end of the Lake Mead National Recreation Area about 80 km (50 mi) downstream from Hoover Dam. It spans parts of northwestern Arizona and southern Nevada near the south end of Cottonwood Valley. The map includes the Spirit Mountain SE 7.5' quadrangle and the southern part of the Spirit Mountain NE 7.5' quadrangle. The map area contains well-exposed Neogene and Quaternary strata and associated geomorphic features that record and are critical in dating the arrival of the Colorado River in the early Pliocene and the subsequent history of the river and its landscape through the Holocene. The valley is bounded on the west by the Newberry Mountains (Nevada) and on the east by the Black Mountains (Arizona) and includes part of Lake Mohave, a reservoir created by the completion of Davis Dam in 1951. This map does not include the geology of the reservoir floor and focuses only on surficial deposits.
Suggested Citation
House, P.K., Crow, R.S., Pearthree, P.A., Brock-Hon, A.L., Schwing, J., Thacker, J.O., and Gootee, B.F., 2020, Surficial geologic map of the Spirit Mountain SE and part of the Spirit Mountain NE 7.5' quadrangles, Nevada and Arizona: U.S. Geological Survey Scientific Investigations Map 3448, pamphlet 30 p., scale 1:24,000, https://doi.org/10.3133/sim3448.
ISSN: 2329-132X (online)
Study Area
Table of Contents
- Abstract
- Project Mapping
- Previous Work
- Overview of Neogene Extensional Tectonics and Structural Setting of Cottonwood Valley
- Key Map Units Related to Arrival and Integration of the Colorado River
- Summary of Late Neogene and Quaternary Evolution of Cottonwood Valley
- Evidence for Faulting and Deformation
- Description of Map Units
- References Cited
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Surficial geologic map of the Spirit Mountain SE and part of the Spirit Mountain NE 7.5' quadrangles, Nevada and Arizona |
Series title | Scientific Investigations Map |
Series number | 3448 |
DOI | 10.3133/sim3448 |
Year Published | 2020 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
Description | Pamphlet: iv, 30 p.; 1 Sheet: 38.50 x 43.00 inches; Database; Metadata; Readme file |
Country | United States |
State | Arizona, Nevada |
Other Geospatial | Spirit Mountain quadrangle |
Online Only (Y/N) | Y |
Additional Online Files (Y/N) | Y |
Google Analytic Metrics | Metrics page |