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Geosciences role in making Tucson the "Science City"

The University of Arizona's 28-page supplement in Sunday's Arizona Daily Star newspaper is one of the many high-profile activities taken by the school to build Tucson's reputation as "Science City." This now annual feature showcasesShow More Summary

Another hematite boulder

Some of Oakland’s busiest places are little visited and little noticed. This set of boulders sits at the intersection of MacArthur and Foothill Boulevards, up by the Eastmont Transit Center. The stuff of these boulders appears to be the hematite ore of upper Leona Creek. It almost looks like they would fit together in a […]

Autumn, Western Style

Sycamore at the Pinnacles National Park Visitor Center I can't help but notice that winter has set in around much of the country, but my calendar says it's still autumn for another few weeks. I don't know why so many of you are so anxious to jump right into winter, but I'm not. Show More Summary

ASU prof maps geology of asteroid Vesta

A new geologic map of the asteroid Vesta has been published by Arizona State University pla netary scientist David Williams and his colleagues. It's online in the December special issue of the journal Icarus on The Geology of Vesta.They...Show More Summary

Playground example of gravity-driven deformation

I went for a walk yesterday (Thanksgiving holiday) with my brother-in-law and niece to get a bit of fresh air and, as we strolled past a small playground, we saw this: Here’s a shot zoomed in a bit more: The next image has my interpretation: As you can see, the layer of snow has been […]

Climate capers of the past 600,000 years

An international consortium of researchers under the auspices of the University of Bonn has drilled deposits on the bed of Lake Van (Turkey) which provide unique insights into the last 600,000 years. The samples reveal that the climate has done its fair share of mischief-making in the past. Show More Summary

A Mildly Promising View of Mt. Shasta...It Has Snow!

Shasta from the vicinity of Dunsmuir from the south A short note from the highway tonight. We were on a long road trip into central Oregon today and followed Interstate 5 through northern California. One of the real treats of following I-5 is the chance to see Mt. Show More Summary

Opening for UA Mineral Museum Collections Manager

The University of Arizona Mineral Museum looking for a full-time, permanent position, collections manager. The mineral museum is located in the Flandreau Science Center [right] on the University of Arizona campus in Tucson as part of...Show More Summary

Appeal filed to lift federal ban on uranium claims, exploration in northern Arizona

Reuters reports that the National Mining Association and the American Exploration and Mining Association filed an appeal late on Tuesday with the 9th U.S. Circuit Court of Appeals, to overturn last month's decision by U.S. District Judge David Campbell that the U.S. Show More Summary

New president of Nevada Mining Association has Arizona ties

The new president of the Nevada Mining Association has extensive ties to Arizona.The Association announced that D ana Bennett [right, Linkedin photo], the former regional director of the Nevada Governor’s Office of Economic Development and current owner of Bennett Historical Research Services, will become President of NVMA effective Dec. Show More Summary

Helium exploration geologist position open in Phoenix

Exploration for helium in Arizona heated up this year with two wells drilled in the Holbrook area where it was produced for decades. [Right, AZGS map of helium fields in Arizona] One of our correspondents passed along a new job posting for a Phoenix-based geologist to help with helium exploration in the region. Show More Summary

Adjusting Earth's thermostat, with caution

A team of researchers from the Harvard School of Engineering and Applied Sciences has outlined how a small-scale 'stratospheric perturbation experiment' could work. By proposing, in detail, a way to take the science of geoengineering to the skies, they hope to stimulate serious discussion of the practice by policymakers and scientists.

Subtle shifts in the Earth could forecast earthquakes, tsunamis

Earthquakes and tsunamis can be giant disasters no one sees coming, but now an international team of scientists led by a University of South Florida professor have found that subtle shifts in the earth's offshore plates can be a harbinger of the size of the disaster.

Happy Thanksgiving and Safe Travels (with a last look at our newest national park)

Here's hoping that you all have a fine Thanksgiving holiday and that your travels are safe and fun. I offer up one of the things that I am truly thankful for: politicians that put aside their differences and agreed to establish Pinnacles National Park in 2013. Show More Summary

M3.5 quake near Sedona is felt locally; preceded by foreshocks

Residents in the Sedona-Flagstaff area report feeling a magnitude 3.5 earthquake that hit about 6 miles north-northeast of Sedona at 2:19 a.m. local time this morning. [Right, orange star marks epicenter. Credit, USGS]Dr. Jeri Young,...Show More Summary

Fog Returns to the Great Valley! I hate it, but it's a good thing (tentatively)

Buffalo has apocalyptic lake-effect snow, Minnesota has blizzards, Phoenix has horrific dust storms, Kansas has tornadoes, New Orleans has hurricanes. In the big picture, those of us who live in the Great Valley of California don't have much in the way of weather issues. Show More Summary

P.K. (Rana) Medhi

The Arizona Geological Society reports that "Long-time AGS member P. K. (Rana) Medhi [photo credit, AGS] passed away Nov. 7, 2014 at his home in Casa Grande. Medhi, former chairman of the Board of Governors of the Arizona Dept. of Mines...Show More Summary

Volcano hazards and the role of westerly wind bursts in El Ni?o

Volcano hazards and the role of westerly wind bursts in El Ni?o are topics published this week by the American Geophysical Union's journals.

Oakland City Hall: Stone and structure

A few weeks ago I set foot inside our City Hall—for the first time, I’m embarrassed to say. I hope you will step inside before you’ve lived here 25 years, like me. I’ve always known we have a gorgeous building, and now I’m amazed. C’mon in. First we’ll have a look at the structure’s famous […]

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