Phil Anderson's maps of the Proterozoic of the Bradshaw Mountains of central Arizona's Transition Zone with a forward and note of explanation by Steve Reynolds and others. From Reynolds and others forward, "Phillip Anderson conducted a comprehensive study of the Proterozoic geology, tectonics, and mineral deposits of the Southwest, focused on Arizona ... . In total, the Phillip Anderson Arizona Proterozoic Archive represents the most significant collection of geologic maps ever released for the Proterozoic of Arizona."

The Grandview Breccia Pipe is located on Horseshoe Mesa within the Grand Canyon, north of Grandview Point. The pipe is a classic model of a Colorado Plateau type solution collapse breccia pipe. Caverns developed within the Redwall Limestone and collapsed to the surface, often to the Kaibab Limestone, a vertical distance of about 2000 feet. On the plateau, the pipe expression is often a circular depression in the Kaibab. The pipes are typically cylindrical in section and are filled with broken fragments (breccia) of overlying formations, mostly siltstones, sandstones and limestones. Hundreds, if not thousands of breccia pipes exist on the plateau, although only about 4% are mineralized. The Grandview Pipe is mineralized with copper, uranium, zinc and lead. The pipe was commercially mined for copper from about 1892 through 1916.

Strong international demand and high potash prices have prompted a number of companies to conduct or plan potash exploration in the already productive Paradox Basin of southeastern Utah. In response to potash interest in the area, the Utah School and Institutional Trust Lands Administration contracted the Utah Geological Survey to evaluate potash beds in the Pennsylvanian Paradox Formation in about 900 square miles of northern San Juan County, including the Hatch Point, Hart Point, and Lisbon Valley areas. The Paradox Formation is an evaporite sequence containing up to 29 recognized salt cycles that are numbered sequentially from top (1) to bottom (29), and the most significant potash beds in the study area are in salt cycles 5, 6, 9, 13, 16, 18, 19, 20, 21, and 24. Data on these beds were compiled from published and unpublished sources containing information on 132 potash exploration boreholes and oil and gas wells in and around the area. From the compiled data we created isopach, grade, overburden thickness, and structure contour maps of potash beds. For the maps, we interpolated the data using an inverse-distance-squared weighting, with an anisotropy applied to take the Paradox Basin’s northwest-trending geometry into account. Results suggest that multiple salt cycles in the study area may represent a potash resource; however, the resource comprises different beds in different areas. The primary potash-bearing mineral of most of the potential resources in the basin is sylvite, but carnallite is also present in some areas.

Northern Arizona has attracted pioneers in North American geology since the days of John Wesley Powell; when northern Arizona was considered to be a part of our "last frontier." Perhaps Powell, Darton, Dutton, Walcott, Noble, Gregory, Gilbert, Davis, or Robinson would not have been surprised to learn that the geology of northern Arizona would play an important part several generations later in the geologic exploration of a new frontier--that of space. Largely because of the variety of geologic terranes, good exposures, and the presence of geologic analogs of lunar features, Apollo astronauts received training in ten different field sites in northern Arizona, including operational rehearsals for lunar geologic traverses. Because of the importance of the geology of northern Arizona to both the history of the science and to an understanding of the geology of North America, papers were solicited to provide an up-to-date synthesis of this geologically varied region. The contributors represent a variety of sponsoring institutions. Most are affiliated with the U.S. Geological Survey, Northern Arizona University, or the Museum of Northern Arizona; other universities and research agencies are represented, as are state agencies and mining companies.

Director Lee Allison's Report ~ In Fiscal Year 2014, the Arizona Geological Survey (AZGS) maintained its core functions in addressing natural hazards and natural resources in Arizona, and not only cemented our role as a national leader in geoinformatics or geoscience cyberinfrastructure but expanded our impact globally as well. AZGS geologists responded to natural hazards including debris flows and landslides following wild fires, the magnitude 5.3 Duncan Arizona earthquake, and a plethora of new or expanded earth fissures resulting from monsoon downpours. The deadly landslides in Washington and Colorado this past year prompted us to reallocate a modest amount of internal funds to start a statewide inventory of known landslides, something never before undertaken. A full inventory, characterization, and assessment will be a multi-year effort, assuming we can continue to support the work. We made substantial progress in getting the hundreds of thousands of pages of reports and files gathered by the former Arizona Department of Mines & Mineral Resources digitized, georeferenced, and online at the interactive Arizona Geological Survey Mining data website. Our Phoenix operations moved out of temporary space to co-locate with the Arizona Department of Water Resources, with much better public access and enhanced ability to collaborate between our agencies. One of the highlights of the year was the formal launch of the National Geothermal Data System (NGDS) by U.S. Secretary of Energy Ernest Moniz at the White House Energy Datapalooza, in Washington, DC in May 2014. NGDS went operational as a federated data network with over 10 million data records covering 30 different types of data, from 60+ contributing data providers in all 50 states. AZGS has managed this Department of Energy project since 2010 on behalf of the Association of American State Geologists. NGDS is the largest application of the US Geoscience Information Network (USGIN). We spun off USGIN Foundation, Inc. as a non-profit company to commercialize the services and turn NGDS into a sustainable operation. The USGIN data framework meets all the requirements of the White House Open Data Access Initiative, and has wide applicability to other resources beyond geothermal, including petroleum, minerals, and water, and natural hazards. The Arizona Natural Resources Review Council adopted USGIN as the basis of a Natural Resources Decision Support System linking data, documents, and maps among the nine state environment, resource, and transportation agencies, to better enable the State of Arizona to respond effectively to the thousands of federal agency land use and land management proposals made every year. The AZGS took on a major project for the National Science Foundation (NSF) to design and test a community-led governing structure for geoscience cyberinfrastructure under the EarthCube program. It is a dramatic departure from how scientific organizations are set up, and is intended to build community consensus on a system architecture, a challenge the community has struggled with for 15 years. Following on the heels of early EarthCube successes, NSF asked AZGS to lead the US Secretariat for the Belmont Forum e-Infrastructure and Data Management project in partnership with colleagues from the University of Reading in the United Kingdom. I serve as co-chair of the project’s international Steering Committee with representatives from 13 nations’ science funding agencies, the European Union, International Council for Science, and International Social Science Council. We have an 18-month process, with 120 experts in science, technology, legal and security issues from the participating countries, to produce a strategic plan for enabling global change research. The AZGS’ growing national and global presence is paying dividends on multiple levels. The digital technologies we are developing are being put to work on the State’s Natural Resources Decision Support System, at our new portal for digital mines and mineral resources, and at the interactive, online Natural Hazards in Arizona viewer. This is critical since AZGS funding continues to be dominated by external grants. The State appropriation for AZGS is less than 10% of our total budget, as it has been for several years. The grants we bring in help support basic operations of the agency so that we continue to maintain all the services to Arizona that we provided prior to the recession and the substantial cuts that all agencies took. In summary, AZGS helped save lives and property from natural hazards, supported the wise development of our natural resources, is making Arizona a global leader in cyber technology, and has become an entrepreneurial center of economic development. This report provides more details on these activities and perspectives from the geologists and others on staff who are carrying out the work. M. Lee Allison State Geologist & Director

In this, our 125th anniversary year, we are celebrating the efforts of hundreds of geologists and geoscientists to understand Arizona’s remarkable geology and apply that knowledge to making our lives safer and richer. All told, AZGS and its predecessor agencies have published more than 1,000 geologic products (maps, reports, assessments, etc). As we continue to respond to new demands and take advantage of new technologies, we are taking the lead in creating new products and establishing new communication pathways to serve Arizona. All of our publications are now digital and put online as soon as they are released. A lot of our work is communicated to our constituents through electronic and social media, including blogs, Facebook, YouTube, Twitter and a new online video magazine, “Arizona Mining Review.” Over the past year, AZGS has continued to grow due to our success in bringing in external funds to support and underwrite our work on state issues. This allowed us, as one example, to continue operations of the Arizona Broadband Seismic Network, the first statewide earthquake monitoring system, without any direct state or federal support.

Carbonate rocks of lower Permian age are important host to copper skarn mineralization, in the porphyry copper belt of southeastern Arizona, near Tucson. Early Permian sedimentation occurred on an unstable shelf with abrupt facies changes, resulting in diverse lithologies, repetitive depositional sequences and obscured formational contacts. Favorable carbonate protoliths are not necessarily confined to a given stratigraphic horizon, nor limited to a particular formation, complicating efforts to determine stratigraphic controls of skarn mineralization within a porphyry system. Since carbonate rock types are defined by their depositional environment, facies modeling may help to delineate important carbonate skarn protoliths, in altered section. This study represents a synthesis of previous work, and adds new observations and stratigraphic interpretations of the lower Permian Earp, Colina and Epitaph Formations within the porphyry copper belt of present day Pima and western Cochise Counties, Arizona. Potentially favorable carbonate protoliths are described, utilizing stratigraphy and facies analysis as a means of determining their spatial distribution. For workers studying altered drill core associated with copper mineralization, important diagnostic features of lower Permian protoliths and marker beds useful in altered section are discussed here, along with their commonly associated skarn assemblages.

This bibliography provides references for each known metallic mineral district in Pima and Santa Cruz Counties in Arizona. In a mineral-district classification, known metallic mineral occurrences are grouped according to geologic and metallogenic criteria rather than the geographic associations used in the traditional mining-district approach (Keith and others, 1983a,b). Ideally, a mineral district should consist of mineral occurrences that have a common genesis. A mineral-district classification is especially useful for understanding the geologic setting of mineralization and the distribution of known mineral occurrences with similar geology. A mineral-district map, however, is by no means a statement of mineral potential because future mineral discoveries within and outside established districts will affect district boundaries. Although understanding the distribution of known mineral deposits is essential in evaluating mineral potential, many other geologic and technologic factors must also be considered (Fellows, 1984). This circular is the third in a series of county-by-county bibliographies for metallic mineral districts in Arizona. This and other circulars are based upon the work of Keith and others (1983c), but provide a more usable format and more comprehensive reference lists than the latter publication. Nearly 1,100 citations are listed in this circular.

Kelsey Boltz has been a registered mining engineer and geologist in Arizona since the mid 1960s. A 1953 graduate of the Colorado School of Mines, he founded Colamer Corporation and Nuclear Dynamics, both companies active in the uranium industry in the Grants Uranium Region of New Mexico in the '50s, '60s and '70s. In 1981 he co-founded Century Capital, Inc., an investment banking and retail brokerage firm which provided several hundred million dollars financing for various industries including natural resource companies. In 1990 he started his exploration consulting company, Boltz Group International, which initiated and managed several mining projects in Mexico, Chile and Bolivia. The collection consists of geologic reports, maps, assays and surveys. The collection covers properties across the western U.S. and Mexico.

The Arizona Department of Mines and Minerals operated from 1940 to 2011 to promote the development of Arizona's mineral resources through technical and educational processes. This collection consists of various reports, maps, records and related materials acquired by ADMMR regarding mining properties in Arizona. At times, property owners supplied information, ADMMR staff performed field visits or staff clipped articles from periodicals and publications. Each record's title refers to the primary name of a unique mineral locality. Alternate names of mines will be included in the fully cataloged records. Since the former index (the Arizona Mineral Industry Location System) included not only mineral localities for which the Department had a report, but included all mineral localities in Arizona, some files listed as "missing" may never have had a report.