Geologic timeline of Grand Canyon with 'how to use' explanation.
Recent Posts
Economic geologist Carson Richardson joins the AZGS staff. Carson is tasked with rebuilding a viable economic geology program.
The Arizona Geological Survey (AZGS) compiled and analyzed physical, geophysical and geologic data for Higley and northern Picacho basins near Florence, Arizona, to evaluate hydrogeologic conditions and boundaries related to groundwater potential. This investigation shows that depth to bedrock, basin fill alluvium, interbedded basalt flows, and faults are more extensive in the two-basin area than previously thought. This may have important ramifications for the volume and distribution of groundwater resources.
Rapid infilling of a 2-mile long fissure in the Tator Hills earth study area, Pinal County
Northern’ Arizona’s Washington Fault Zone (WFZ) has been reminding us of its potential for earthquake hazards over the past 3 weeks.
AZGS just released three new digital geologic maps completed as part of our STATEMAP collaboration with the U.S. Geological Survey.
Addressing the origin of the Pliocene Bouse Formation of the Lower Colorado River Valley.
The Geologic Highway Map of Arizona is a treasure trove ...
The Arizona Geological Survey’s broadband seismic network (ABSN) now provides a statewide seismic monitoring network that can be used to estimate seismicity rates, the amount of ground-shaking and can provide seismic data that can be used to image subsurface processes.
Long-time AGS member Steve Reynolds named a 'Preident's Professor' at Arizona State University.
Review by the Arizona Mine Inspector for the years 2007-2018.
AZGS submits four digital geologic maps to US Geological Survey STATEMAP program.
Arizona's splendid geoheritage sites powers geotourism for Arizonans and American and foreign tourists.
They surround you almost anywhere you are in Arizona. They cling to your shoes, they end up in pockets and pant cuffs, they provide a little crunch to that clam chowder you made, they color the water of streams tumbling through mountain canyons, and they wash back and forth in the waves on the shore of an ocean or lake.
As a newly minted faculty member in geology at the University of Wisconsin in 1964, the opportunity to join Bob Dott in co-teaching our traditional summer “field mapping” course was one I could not refuse.
The 2018 monsoon season opened an earth fissure in Apache Junction that damaged and closed Houston Avenue road.
The life and times of a mining town, Superior, Arizona, during the Great Depression, WW II and post-War years.
“We are probably the most regulated mine in the state of Arizona”
Dan Johnson, VP & General Manager of Florence Copper, Inc.
We are delighted to announce that the AZGS offered the position of Research Scientist in Economic Geology to Carson Richardson.
The Granite Basin laccolith is located in the Mescal Mountains of the San Carlos Indian Reservation, 15 miles ENE of Kearny, Arizona. According to Willden (1964), the feldspar-mica porphyry intruded the Naco Limestone about 62 Ma. Locally, the Pennsylvanian Naco strikes northwesterly and dips about 25 to 30 degrees to the southwest. At the southeastern end of the laccolith, the Naco Limestone is nearly vertical and strikes to the northeast.
