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Nick Priznar

We were deeply saddened to learn that Nicholas (Nick) M. Priznar, well-known geologist with the Arizona Dept. of Transportation, passed away on May 16, 2014.

STATEMAP updates

STATEMAP is a matching fund program whereby State general funds are matched one-to-one with federal funds to support geologic mapping by the states.

US Route 89 Landslide, February 2013

The Arizona landscape is no stranger to landslides. The entire spectrum of landslide types – debris avalanche, debris flow, earthflow, creep, rock fall, rock slide, topple, rotational and translational landslides - are encountered here. 

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Minedata web portal

In April, the Arizona Geological Survey (AZGS) launched a new digital collection of Arizona’s mining history.

CO2 well east of Springerville - 1997

Eight drilling permits were issued and no wells were drilled through March 2014.

Spencer Titley

Interview with Dr. Spencer Titley, Professor of Geosciences Emeritus, Department of Geosciences, University of Arizona, on the history of porphyry copper exploration in Arizona.

Lee Allison's 2013 Arizona Geology Blog

Some of the top geologic stories from Lee Allison’s Arizona Geology blog for 2013.

"Head of the Grand Canyon" woodcut image

In this article, we present some of the highlights of the geological exploration of Arizona, focused on the role of early surveys by the U.S. Government and later geologic studies by the USGS and the AZGS and its predecessors.

Map of southwestern North America showing the outline of the drainage basin for the upper Colorado River

 A brief review of the significance of Arizona geology in development of concepts associated with these features, presented in commemoration of the 125th anniversary of the Arizona Geological Survey and its predecessors.

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125 Years - Arizona Geological Survey

The Arizona Geological Survey celebrated its 125th anniversary in 2013, tracing our origins back to the creation of the Office of Territorial Geologist in 1888, 25 years before Arizona became a state.

The Great AZ ShakeOut

During 2013, the Arizona Geological Survey (AZGS) cataloged over 100 Arizona earthquakes, participated in multiple outreach activities, and acted as resource experts for the seismic source characterization project for the Palo Verde Nuclear Power Plant.

Drilling for CO2

Forty seven drilling permits were issued and 30 wells were drilled in 2013. Three companies drilled 27 wells for potash in the area of Petrified Forest National Park east of Holbrook.

Digitizing, Cataloging, and Publishing Arizona’s Mining Legacy Online: Mine Maps, Reports, and Photographs

In 2011, AZGS began a comprehensive inventory of 30 archival collections, creating finding aids for the more than 10,000 folders, 6,000 maps, and 7,000 photographs.

Update on the STATEMAP mapping program in Arizona

Seven new geologic maps, currently in drafting but otherwise complete, represent the products of the 2011-2012 field season.

Drill rig used for drilling ground-source boreholes.

The idea behind heat pumps or geothermal ground-source energy is to leverage year-round ground temperatures, typically between 54 – 75 degrees Fahrenheit, for cooling in the summer and heating in the winter.

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