Arizona State and Local Government Documents Collection

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Seven sinkholes surround the city of Sedona in Coconino and Yavapai Counties, Arizona. They occur in surface bedrock of Permian age Esplanade Sandstone, Hermit formation, and Schnebly Hill Sandstone, but the causative source is from the collapse of subsurface water-filled caves in Mississippian Redwall Limestone that underlies those formations. The original Mississippian-age Redwall karst surface has undergone two additional phases of dissolution enlargement in later geologic time. The first occurred after the Laramide uplift of the Mogollon Highlands when northeast flowing streams penetrated the exposed Redwall Limestone erosion surface, and the second took place following the generation of the Verde ...

Contributors
Lindberg, Paul A., Arizona Geological Survey
Created Date
2010-04

At the request of the U.S. Forest Service to Red Rock Jeep Tours of Sedona a geologic report on the condition of the Devils Kitchen sinkhole was required for the safe continuation of Jeep visits to the site (Fig. 1). Mark Avery of the jeep company contacted me to study the site and write up my findings. The study of sinkholes in the Sedona area has been of interest to the writer for some time and the present study is hoped to shed some light on these fascinating geologic features. This report is offered as a public contribution at the ...

Contributors
Lindberg, Paul A., Arizona Geological Survey
Created Date
2010-02

Five major areas are discussed separately, for the most part, except in those cases where features in one map area may bear upon features in another map area. All areas were surveyed on foot to obtain the best accuracy. In a few cases, the position of certain features or the identification of formations was obscure; in those cases I used my best jUdgment. To facilitate accuracy, multiple station lines and triangulation was used in many areas. In many areas, geographic and man-made features are included to permit geologic features to be found, if required.

Contributors
Brod, Langford G., Arizona Geological Survey
Created Date
2005

Our interdisciplinary team of a geologist and volunteers, working with the City of Scottsdale and the McDowell Sonoran Conservancy (MSC), has confirmed that an unusual rock outcropping in the McDowell Mountains within the McDowell Sonoran Preserve in Scottsdale is travertine, a form of limestone. Limestone has not been identified previously in the McDowell Mountains or in the metro Phoenix area. This research is part of a coordinated effort on the part of MSC and the City of Scottsdale’s Preservation Division to use the talents and energy of MSC volunteers to better understand the geologic setting of the McDowell Sonoran Preserve. ...

Contributors
Gootee, Brian F., Arizona Geological Survey
Created Date
2009

A brief reconnaissance (5-8 November 2008) of the Big Sandy Formation near Wikieup (on US Highway 93 in Mohave County, Arizona) was undertaken to reconcile a reported dominance of lacustrine beds (Sheppard and Gude, 1972, 1973) with the largely terrestrial mammalian fauna reported from the formation (MacFadden et al., 1979; Lindsay and Mead, 2005). The issue is resolved satisfactorily by appreciation that nearly all fossil localities occur in fluvial beds that intertongue with and grade laterally into the dominant lacustrine strata.

Contributors
Dickinson, William R., Arizona Geological Survey
Created Date
2008-12

To provide insight into provenance relations for multiple mid-Oligocene to mid-Miocene subbasins (typically half-grabens) dissected by erosion in uplands lying north of the Catalina core complex and west of the San Pedro trough, 136 outcrop counts were made of clast types in tilted conglomerates of the Cloudburst and San Manuel Formations and their lateral equivalents in exposures as far north as the Gila River near Kearny. Clast counts were not made for younger conglomerates of the post-mid-Miocene Quiburis Formation, which fills the San Pedro trough and onlaps flanking uplands (Dickinson, 1998), because Quiburis clast assemblages in all cases match bedrock ...

Contributors
Dickinson, William R., Arizona Geological Survey
Created Date
2008

This white paper has been created by Arizona Land Subsidence Group to help educate stakeholders and decision makers by describing the geological features and processes of land subsidence and earth fissures, and the hazards they create. This paper presents the current and future technical needs that exist in terms of basic knowledge, available data, and the state of professional practice.

Contributors
Arizona Land Subsidence Group, Arizona Geological Survey
Created Date
2007-12

This report details geothermal resource exploration done for Arizona Public Service and the U.S. Department of Energy in 2005 to evaluate the geothermal resources of the Clifton Hot Springs area in Greenlee County, eastern Arizona for electric power production. The intent of the evaluation was to determine the local geologic controls of the geothermal system and, using publicly available data and original mapping performed for this project, to recommend locations for Controlled Source Audiomagnetotelluric (CSAMT) cross sections. The results of the geophysics were then combined with the geologic mapping to site three gradient holes, two of which were drilled to ...

Contributors
Brown, David Earl, Arizona Geological Survey
Created Date
2007

Pima County is endowed with many mineral resources, not only copper mines, but also the important products such as sand, gravel, and limestone used everyday in supporting the infrastructure of our cities. It is essential that these mineral resources, and the lands where they occur, remain available for exploration and development. This report presents an assessment of the mineral resources of Pima County based on hard data derived from many experienced geologists working in the private sector and from publications of state and federal government agencies.

Contributors
Miller, Charles P., Southwestern Minerals Exploration Association, Arizona Geological Survey
Created Date
2001-07-15

This summary report overviews a State of Arizona and U. S. Department of Energy funded drilling project to determine if near-term hot dry rock (HDR) geothermal potential exists in the eastern portion of the White Mountains region of Arizona. A 4,505 feet deep slim-hole exploratory well, Alpine1/Federal, was drilled within the Apache-Sitgreaves National Forest at Alpine Divide near the Alpine Divide camp ground about 5 miles north of Alpine, Arizona in Apache County (Figure 1). A comprehensive technical report, in two parts, details the results of the project. Part 1, Alpine1/Federal, Drilling Report, discusses the drilling operations, logging program, permitting ...

Contributors
Witcher, James, Arizona Geological Survey, Arizona Energy Office
Created Date
1994

The State And Local Arizona Documents (SALAD) collection contains documents published by the State of Arizona, its Counties, incorporated Cities or Towns, or affiliated Councils of Government; documents produced under the auspices of a state or local agency, board, commission or department, including reports made to these units; and Salt River Project, a licensed municipality. ASU is a primary collector of state publications and makes a concerted effort to acquire and catalog most materials published by state and local governmental agencies.

The ASU Digital Repository provides access to digital SALAD publications, however the ASU Libraries’ non-digitized Arizona documents can be searched through the ASU Libraries Catalog and Library One Search. For additional assistance, Ask A Government Documents Librarian.

Publications issued by the Morrison Institute for Public Programs at Arizona State University are available in the ASU Digital Repository Morrison Institute for Public Policy - Publications Archive collection.