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A Stunning Photograph: No Human Has Seen Such a Thing

One of my most vivid memories as a child was the time our family paid a visit to the telescope and observatory on top of Mt. Palomar in Southern California. I'm not sure how old I was, perhaps 8 or so, and I already had a mania for all things astronomy. Show More Summary

A Great Museum for a Great Valley: Support the Museum at the January 17th Gala Event!

Something incredible is about to happen in Modesto. The long-awaited re-opening of the Great Valley Museum in its new home at the Science Community Center is taking place in a few weeks! The new museum is a quantum leap in educational...Show More Summary

One Year Ago Today Compared to Last Month: Mud and Snow v. Mud and Water in the Fernley Wildlife Management Area

A year ago today, a thin snow highlighted some Lake Lahontan shorelines on basalt-capped hills out in (or near) the Fernley Wildlife Management Area (FWMA): Snow on low hills across the dark brown playa in part of the Fortymile Desert on January 5th, 2013. Show More Summary

Middle-Earth Here on our Planet? Some Geo-thoughts After the Last Tolkien Movie

Mt. Ruapahu, an active volcano on the North Island of New Zealand A new world came into being a little over eighty years ago. It formed in the mind of an English scholar, a world with a vivid geography that was populated by a plethora of men, elves, dwarfs, orcs, goblins, dragons, and hobbits. Show More Summary

2014: Our Year Without a Freezing Temperature

My flower garden WILL recover... Something strange happened last night, the last day of the year 2014. At seven minutes to midnight, the official temperature at Modesto airport stood at 33ºF. At some point during the next sixty minutes,...Show More Summary

National Geothermal Data System spun off in new non-profit company

Our US DOE-funded project to deploy and populate the National Geothermal Data System officially ended on December 31, but the results of the work will echo for years to come as the system moves into a new sustainable phase. NGDS is operational and will remain free to all users. Show More Summary

A few of the Arizona geology stories of 2014

A few of the many geologic stories of 2014 that The eastern Arizona magnitude 5.3 earthquake near the town of Duncan was the biggest in the region in more than 75 years. There have been hundreds of aftershocks recorded and a couple dozen were large enough to be felt by local residents (right). Show More Summary

Arizona copper mining had ups and downs in 2014

Copper prices dropped 50 cents a pound during 2014, from $3.38 to $2.88 per pound putting pressure on Arizona mines. Mineral Park Mine, an open pit copper mine north of Kingman, announced on December 29 that they were shutting down and laying off 380 workers. Show More Summary

A white new year's in the Tucson Mountains

Snow began falling in the Tucson Mountains after 9 p.m. on New Year's Eve. We awoke this morning with a light dusting on the slope. The saguaros have snow on their west-facing sides (below). With the bright sun and clear skies, it should all be gone in a few hours.Happy new year!

A New Year. Do Something New. See a New Place.

Peyto Lake in Banff National Park, Alberta, Canada I've never been one for resolutions. Changes in my life tend to happen at the various times when the need for change becomes apparent and I try acting on them as a result. That being said, this is the closest thing I ever have to a resolution: this year, do something new and see a new place. Show More Summary

Explore the Wonders of the Colorado Plateau: Join Geotripper and the AAPG on May 23-29, 2015!

Antelope Canyon, on the Navajo Reservation near Page, Arizona The Colorado Plateau, the region encompassing large parts of Arizona, Utah, New Mexico and Colorado, is one of the great geologic showplaces on planet Earth. Within the region,...Show More Summary

Special episode of Arizona Mining Review video magazine from the SME Arizona Conference

The AMR crew was at the recent SME Arizona Conference at the Starr Pass Resort outside Tucson and we interviewed a number of the speakers and prominent attendees about current developments in Arizona mining. We also sat down with the...Show More Summary

Evening Scenes of a Primeval Landscape: The Great Valley as it was

It's my home, and I've been known to denigrate it for it's pollution, dust, and visual desolation (hundreds of miles of monotonous agricultural fields). Only 5% of the original landscape of California's Great Valley remains. But there...Show More Summary

Lake Aliso

Mills College occupies a geologically interesting part of town. It owes its stimulating geomorphology to the confluence of three streams under the influence of the Hayward fault. I plan to write several posts about it. Here’s the segment of the geologic map that includes the campus. The main strand of the fault runs just left […]

The Volcano That Wasn't There, and Two That Were...

Mt. Shasta and Shastina from the north I hope that your holiday travels were safe and happy. I had a fine time visiting family across the Pacific Northwest, from Seattle to central Oregon, Northern California and home again. I had been looking forward to seeing a bevy of Cascades volcanoes, including Mt. Show More Summary

Study hints that ancient Earth made its own water -- geologically

In a finding that meshes well with recent discoveries from the Rosetta mission, Ohio State University researchers have discovered a geochemical pathway by which Earth makes it own water through plate tectonics. This finding extends the...Show More Summary

New Discoveries Lecture Series launched at ASU will look at Earth-like planets

On January 29, join Professor Lindy Elkins-Tanton, director of ASU's School of Earth and Space Exploration, for the inaugural lecture in the SESE New Discoveries series. Dr. Elkins-Tanton will present a lecture on "Building Earth-like...Show More Summary

Big turnout at SME Arizona conference

Over 500 attended the Society for Mining, Metallurgy, & Exploration's (SME) 2014 Arizona Conference earlier this month at the Starr Pass Resort in Tucson. So many showed up that the organizers were scrambling to set up enough tables to accommodate everyone at lunch.The day-long technical program on Monday, Dec. Show More Summary

Overwelming week for AZGS at the AGU Fall Meeting

The Fall Meeting of the American Geophysical Union drew nearly 25,000 attendees to San Francisco, which made it an major forum for AZGS projects.The weekend prior to the regular meeting, we hosted the Steering Committee of the Belmont...Show More Summary

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