HAIDA GWAII: MISTY SHORES AND DAPPLED LIGHT
9 hours ago
blog of the State Geologist of Arizona
At least one spammer has discovered this blog. Over the last 5 years, there has been a low level of spam comments received that I delete before being posted. But now, some troll for an online payday lender is bombarding me with hundreds of purported comments that are just links to their sales pitch. Fortunately, the blogspot spam filter has caught all of them (I think), so I just have to delete the stacks of notifications in my inbox.
The past few weeks have been busy for us on our two DOE
geothermal data projects. We just got back the results from the annual
Peer Review held in Denver for all the DOE-funded geothermal projects. AZGS runs the largest project in the country, and one of the most complex, with 44 subcontractors across the country, integrating data and web services from all 50 states, on behalf of the Association of American State Geologists (AASG).
AZGS is leading the effort to create a comprehensive plan for building and deploying a national cyberinfrastructure. [Right, AZGS-led governance team at the NSF charrette earlier this month. Research Assistant Genevieve Pearthree in the foreground with her back to the camera. Credit, KnowInnovation and NSF]
Passport Potash has received permits from the Arizona Oil & Gas Conservation Commission for an additional 16 exploration coreholes in the Holbrook basin potash deposit. The permits, numbered #1101 - 1116, are posted online at http://www.azogcc.az.gov/permits. [Right, core rig on earlier drilling operation. Credit, Passport Potash]The report concludes that "Of all the energy-related injection and extraction activities conducted in the United States, only a very small fraction have induced seismicity at levels noticeable to the public (that is, above magnitude 2.0)." [Right, sites with earthquakes caused by or likely caused by various energy technologies. Figure 1 from the report. None are reported in Arizona.]In the past several years, some energy technologies that inject or extract fluid from the Earth, such as oil and gas development and geothermal energy development, have been found or suspected to cause seismic events, drawing heightened public attention. Although only a very small fraction of injection and extraction activities among the hundreds of thousands of energy development sites in the United States have induced seismicity at levels noticeable to the public, understanding the potential for inducing felt seismic events and for limiting their occurrence and impacts is desirable for state and federal agencies, industry, and the public at large. To better understand, limit, and respond to induced seismic events, work is needed to build robust prediction models, to assess potential hazards, and to help relevant agencies coordinate to address them.
Chronic exposure to arsenic (As), by contamination of drinking water from natural geological sources, is a significant worldwide environmental health concern [1], [2]. As many as 25 million people in the United States are exposed to As at levels above the current EPA standard from private, unregulated wells, and worldwide the estimated exposure is several hundreds of millions of people. Chronic exposure to such elevated levels has been associated with a variety of adverse health impacts in human epidemiology studies, including various cancers, cardiovascular disease, diabetes and developmental/reproductive effects
The article was based on studies on mice, but Wired.com helped put it in perspective in an interview with the articles lead author, Jack Hamilton, who said, "Arsenic is the number one environmental chemical for human health."
The past few months have been busier than ever at AZGS with almost non-stop travel for me as part of our growing portfolio of funded projects and roles in national programs. But other than a one-day meeting in Houston, I expect to be in the office for maybe three weeks. Time to get back to blogging. And answering the remaining hundreds of emails. Oh, and getting the new fiscal year budget finalized. And..., oh well, you know the drill.
The University of Arizona is running a free monthly lecture series in Washington, DC. On Thursday, June 7, Dr. Mary Poulton, Chair of the Dept. of Mining & Geological Engineering, will talk on the topic of "Rare Earths and Mineral Resources: The UA's contributions to solving global mineral resource challenges."
The USGS tweeted today that they posted all the nearly 2,000 topo maps from Arizona to the National Map online for free viewing or downloading. Unfortunately, the links to the USGS news announcements are not working, so no more details are available at the moment. [Right, example of AZ topo map available at the USGS National Map website]
A recently discovered mineral has been named after Peter Buseck [right, credit ASU] a Regents’ Professor in SESE and the Dept. of Chemistry and Biochemistry at Arizona State University. The mineral, buseckite, was discovered in a meteorite found near the village of ZakÅ‚odzie, Poland.
Bruce Smith from AAPG’s Division of Environmental Geosciences published a summary in the new issue of the AAPG Explorer of a one-day
workshop on hydraulic fracturing at the recent Symposium on the
Application of Geophysics to Engineering and Environmental Problems
(SAGEEP) in Tucson, Ariz. in March. The workshop, titled “Hydrofracturing 101: What Is It, What Are the
Issues and How Can Geophysics Help?” had 16 presentations on topics
that included: