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Arizona Geological Survey Document Repository

September 7th, 2011 | Comments Off | Posted in Geology.com

Over 800 geological reports, maps and other documents are available from the Arizona Geological Survey’s document repository. That includes nearly all of their: open-file reports, digital geologic maps, contributed maps, contributed reports, miscellaneous maps and more. You can search for documents by topic keyword, location keyword, author, collection, publication date and more. Every geological survey should have an online document repository.

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Trace Element Concentrations In US Groundwater

August 30th, 2011 | Comments Off | Posted in Geology.com

“Trace-element concentrations in groundwater were evaluated for samples collected between 1992 and 2003 from aquifers across the United States as part of the U.S. Geological Survey National Water -Quality Assessment Program.

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State Geological Survey Staffing and Budgets

June 22nd, 2011 | Comments Off | Posted in Geology.com

The Arizona Geology blog shares some informative graphs of budget and staffing levels at State Geological Surveys. Staff levels have dropped by about 25% since their peak in the mid-1980′s – this happening during a time when information about mineral resources and geological hazards is in increasing demand.

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Fault Activity Map of California

May 20th, 2011 | Comments Off | Posted in Geology.com

“The map shows the locations of known faults that can be portrayed at 1:750,000 scale and indicates the latest age when displacements took place, according to available data. The displacements may have been associated with earthquakes or may have been the result of gradual creep along the fault surface.” Quoted from the California Geological Survey publication release

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Home Buyer’s Guide to Geologic Hazards

February 20th, 2011 | Comments Off | Posted in Geology.com

A publication of the Arizona Geological Survey just received a nice write-up in the Tucson Citizen. Their “ Homebuyer’s Guide to Geologic Hazards in Arizona ” (PDF docuemnt – might take a while but worth the wait) has a lot of valuable information that can save real estate buyers a lot of headaches. Every state should develop a booklet like this and make it available for free on the web!

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300 Free Arizona Geology Publications

December 4th, 2010 | Comments Off | Posted in Geology.com

The Arizona Geological Survey now has over 300 publications online for free downloading. What a fantastic service! Lots of surveys are still charging for their reports that reach very few people – when they could distribute them for free and reach an enormous number of people.

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Gold Prospecting in the United States

September 16th, 2010 | Comments Off | Posted in Geology.com

A summary of the history, geography and geology of gold prospecting in the United States by the United States Geological Survey.

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Video: Dangerous Sinkholes Near Sedona

August 19th, 2010 | Comments Off | Posted in Geology.com

A video reporting on active sinkholes near Sedona. People who visit the area should understand that these features are unstable and be very careful around them.

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The Permian System in Kansas

August 6th, 2010 | Comments Off | Posted in Geology.com

The Kansas Geological Survey has published “The Permian System in Kansas“. This is a report of about 88 pages with lots of great stratigraphic illustrations, outcrop photos, maps, and references. Takes a little time to download but worth the wait. I really enjoy seeing state geological surveys putting nice publications online for free distribution

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Major Divisions of Geologic Time

July 27th, 2010 | Comments Off | Posted in Geology.com

USGS has released a Fact Sheet containing their most recent revision of “Divisions of Geologic Time – Major Chronostratigraphic and Geochronologic Units”.

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