BSA: Mining in Society Merit Badge|
March 9, 2014 | Arizona Geology Blog
The Boy Scouts of America have officially unveiled the first “Mining in Society” merit badge
Roadside Geology Guides|
March 9, 2014 | Geology.com Store
Since 1972 the “Roadside Geology” series has provided introductory information on the geology of states and small regions of the United States.
The books provide a combination of maps, travel logs, photos and commentary for the geology that can be seen along highways or visited at parks and public viewing areas. They are popular with geologists, teachers, students and others who are interested in the Earth.
Mineral Collectors at the Arizona Mineral Museum|
March 6, 2014 | Arizona Geological Survey
This video features interviews with several mineral collectors who attended the opening reception for the University of Arizona Mineral Museum and Flandrau Science Center 2014 Exhibit.
World Potash Developments|
March 4, 2014 | Arizona Geological Survey Repository
The Arizona Geological Survey published the World Potash Developments paper from the 48th Annual Forum on the Geology of Industrial Minerals held in Scottsdale, April 30 to May 4, 2012.
Geology of the Voca Frac Sand District|
February 27, 2014 | Arizona Geological Survey Repository
“One of Texas’ major frac sand production areas is near Voca, Texas, where sands are produced from the Cambrian Hickory Sandstone on the northwestern flank of the Llano Uplift.” Quoted from the Arizona Geological Survey Repository.
Related: What is Frac Sand?
Tucson Gem and Mineral Show Interview|
February 13, 2014 |
The Arizona Geological Survey just published a special episode of Arizona Mining Review. Lee Allison interviews Peter Megaw, Exhibits Chair of The 60th Annual Tucson Gem and Mineral Show which begins today. At least 40 other gem, mineral, fossil and jewelry shows have been occurring in Tucson for the past few weeks.
Bigger and Bigger and Bigger Copper Deposits|
January 26, 2014 | Arizona Geological Survey on YouTube
Although one would expect the largest mineral deposits to be the first ones exploited, the opposite has been true for copper deposits in Arizona. The large deposits have a grade of ore that can more effectively be processed with new technologies.
In this video, Spencer Titley, a pioneer in the understanding of porphyry copper deposits, explains how some of the earliest geologic mapping done by USGS geologists in Arizona is still being used.
Arizona Gravity and Aeromag Maps|
January 21, 2014 | Arizona Geology
The Arizona Geological Survey document repository now has gravity and aeromagnetic maps available for free viewing.
Copper Ore: Supergene Enrichment|
January 21, 2014 | Tucson Citizen
David Briggs has another article in the Tucson Citizen. This one on the supergene alteration and mineralization assemblages, which are formed when these sulfide-bearing deposits are exposed to near-surface, oxidizing solutions (groundwater) as they are exhumed by erosion and exposed to weathering.
World Potash Developments|
January 19, 2014 | Arizona Geological Survey
“Potash is a non-renewable resource that is a key ingredient in fertilizer along with phosphate and nitrogen. Increased demand for fertilizers and potash has driven potash prices from US$96/tonne in September 1990, to US$203/tonne in July 2007, to US$495/tonne in April, 2012. A dwindling supply of arable land worldwide coupled with population growth requires increased food production from that land.” Quoted from the report.
What is a Porphyry Copper Deposit?|
January 14, 2014 | Tucson Citizen
The Tucson Citizen has an article that gives a good introduction to porphyry copper deposits.
Impact of Arizona Geology on Geologic Concepts|
January 1, 2014 | Arizona Geology
“Arizona makes up a tiny fraction of the land surface on Earth. However, it has had a comparatively larger impact on the evolution of geologic concepts, especially in three areas of geologic inquiry: (1) porphyry copper deposits, (2) metamorphic core complexes, and (3) evolution of large rivers.” Quoted from the Arizona Geology article.
Development of the Geological Map of Arizona|
December 29, 2013 | Arizona Geology
Many events, programs, organizations and people influence the development of a geological map. An article in the winter edition of Arizona Geology traces the development of the Geologic Map of Arizona.
Above the Clouds|
December 5, 2013 | USA.gov
“This photo shows what’s known as a cloud inversion at Mather Point on the South Rim of the Grand Canyon.” Quoted from the USA.gov blog.
NPS Photo by Erin Whittaker. Get a better view.
December 3, 2013 | Geology.com
They are called “anthill garnets” because they are found on and around the margins of anthills. The ants encounter the garnets while excavating their underground passages, haul them to the surface and discard them.
Related: What is Garnet?
Southern California Fireball|
November 7, 2013 | Los Angeles Times
Last night a fireball streaked across Southern California and was seen by people in Arizona, California, Nevada and Utah. Dr. Laura Danly of the Griffith Observatory explains in this video.
Glen Canyon Dam High Flow Next Week|
November 6, 2013 | Arizona Daily Sun
On Monday, the Glen Canyon Dam is scheduled to start releasing up to 37,200 cubic feet of water per second – that is an Olympic-sized swimming pool worth of water into the Colorado River every two minutes. The goal is to imitate a natural flood that will deliver sand to beaches and refresh river habitats.
Arizona Mining Review for October|
November 1, 2013 | Arizona Geological Survey on YouTube
News and events on mining in Arizona during October, 2013.
** Nyal Niemuth takes a hard look at AZ minerals industry – a lot of concern as some promising project are mothballed for lack of funds. (0:30)
** Hall Stewart of Commonwealth Silver discusses new development in one of AZ’s oldest and most productive silver properties. (8:21)
** Steve Rauzi focuses on our new AZ Oil and Gas Well viewer as a window into AZ’s subsurface and how this can inform environmental, water, minerals, oil and gas studies/exploration. (20:13)
New Aerial Photos of Arizona|
October 30, 2013 | Arizona Geology
The latest statewide aerial photo coverage of Arizona from the National Aerial Imagery Program (NAIP) is complete and currently ready for distribution on the APFO Public web server.
The NSF EarthCube Project|
October 28, 2013 | National Science Foundation
The National Science Foundation awarded $14.5 million in grants to support their EarthCube project. The goal of the awards is to foster better data accessibility on research topics, from the sun to the center of the Earth.
The Arizona Geological Survey received an EarthCube award for a project titled: EarthCube Test Enterprise Governance: An Agile Approach
When the Ground Splits Open|
October 28, 2013 | Arizona Geology
Scientists from the Arizona Department of Water Resources and the Arizona Geological Survey explain some of the land subsidence and earth fissure problems associated with ground water production in Arizona. The video, When the Ground Splits Open, is by Arizona Public Media.
What is Petrified Wood?|
October 27, 2013 | Geology.com
Petrified Wood is a fossil that forms when dissolved materials in groundwater precipitate and petrify woody material.
Arizona Oil and Gas Well Viewer|
October 3, 2013 | Arizona Geological Survey / Oil and Gas Conservation Commission
The state of Arizona has developed an interactive viewer that allows anyone to obtain information about oil and natural gas wells. The digitizing effort focused on deep wells across northeastern Arizona including wells that penetrated Precambrian basement and wells in the oil and gas fields with the highest cumulative production.
The AZGS developed a user-friendly web application to make the digitized well data available online to facilitate the widest possible access and use of the data. The search and download map includes more than 1100 well folders, 2500 scanned tiff images of well logs, and the newly digitized LAS data. The search and download map is accessed under the Online Data tab on the State of Arizona Oil and Gas Conservation Commission website. A total of 275 logs from 120 wells for a total of about 962 curves were digitized into LAS format through September 30, 2103.
Copper Silver and Manganese Mining in Arizona|
September 29, 2013 | Arizona Geological Survey on YouTube
The Arizona Geological Survey has a video, that features the status of copper, silver and manganese mining operations that are planned for Arizona.
It also includes an interview with the AGS digital librarian who is working to place decades of historical mining reports, maps, photos and other documents online for free public use. These documents come from government, company and personal collections and include thousands of site reports.
Natural Hazard Viewer for Arizona|
September 24, 2013 | Arizona Geological Survey
The interactive Natural Hazard Viewer focuses on four hazards common to Arizona — geologic faults and earthquakes, earth fissures, floods and wildfire. Each hazard is described in detail and displayed as a layer on a map. Moreover, the natural hazard information is dynamic; site updates will occur as new or revised hazard data becomes available.
Editor’s Comment: Every state geological survey should have one of these!