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Article category: Back Pages

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.

Article category: Feature Article

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. 

Article category: Back Pages

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

Article category: New Publications

AZGS's most recently published Open File Reports (OFR), Contributed Maps (CM), Digital Geologic Maps (DGM), Digital Maps - Earth Fissures (DM-EF), Contributed Reports (CR) and miscellaneous publications.

Article category: Seismic

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.

Article category: Energy | Geothermal

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.

Article category: Feature Article

On this, the 125th Anniversary of the Arizona Geological Survey (AZGS), we are celebrating the work of hundreds of geoscientists who struggled to understand and reconstruct Arizona’s geologic past.

Article category: Back Pages

2012 was a banner year for AZGS publications. We published 47 reports and 20 geologic maps, for a total of 67 publications in six different publication series.

Article category: Seismic

In 2011, 131 instrumentally detected earthquakes were recorded in Arizona. Most of the seismicity occurred in the north-northwest quadrant of the state.

Article category: Earth Science

Over the past decade, vast new territories of digital map data and services have emerged. The landscape of digital products now includes digital topographic maps – current and historical, atlases, geologic and physical geography maps, weather maps, political maps, soil maps, biome maps, and more.

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