Carbon sequestration is a hot topic these days, and the Arizona Geologic Survey (AZGS) is working with a consortium of public and private agencies and non-profits to evaluate the potential of CO2 storage in Cenozoic basins in Arizona. The report is still very preliminary, but a number of deep sedimentary basins have been targeted for further investigation, including basins containing most of Arizona’s population centers like Tucson, Phoenix Metro, Casa Grande and Yuma. [Source: Arizona Geology via Arizona Geology Blog. Image: AZGS]
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Earth Fissures in the News
Arizona State Geologist Lee Allison blogged about some recent news coverage of earth fissures as a result of the AZGS’ release of the first of their earth fissure maps. Here is what he said:
The East Valley Tribune published an extensive set of news features on earth fissures in their Sunday edition, including timeline, maps, videos, and an animation of how fissures form.
KPHO, CBS channel 5 in Phoenix, also has a nice video segment with great aerial shots of the 2005 fissure in Chandler Heights that triggered the recent interest in this hazard.
Here is the video he was referring to.
Geotechnical investigation and recommendations complete for US 89 Bitter Springs Landslide
SR 87 Landslide Presentation at Roads and Streets Conference
Last week was the annual American Council of Engineering Companies of Arizona Roads and Streets Conference in my home town of Tucson, Arizona. Its a transportation themed conference as you might guess, but there are usually a few geotechnical-type presentations. This year, there was an excellent presentation on the SR 87 Landslide that occurred about 1-year ago on the highway between Phoenix and Payson. The presentation was given by Keith Dhalen, PE with AECOM , Wayne Harrison, RG also with AECOM and Scott Neely, PE with Terracon . Read on for my recap of the presentation. (Photo by ADOT via AZGS)