Central Arizona Geology Club

Glacial Retreat

2012-01-16T07:54:00.000-08:00

This is a great time lapse of glacial retreat of a glacier in Iceland:

IL-05 Solheim Glacier from Extreme Ice Survey on Vimeo.

Harry Allen

Moderate quake felt across central Arizona

2012-01-10T09:39:00.000-08:00

Did you feel it?? Someone in Prescott did report that they did.

Arizona Geology: Moderate quake felt across central Arizona:

'via Blog this'

Harry Allen

Tracking Water in Ancient Aquifer

2011-11-23T08:20:00.000-08:00

How to track ancient water -- From Terry Steinborn

Rare Krypton 81 Isotope Helps Track Water in Ancient Nubian Aquifer - NYTimes.com:

'via Blog this'

New site for making maps--Geospatial Platform

2011-11-12T15:01:00.000-08:00

Geospatial Platform:

'via Blog this'

It still need work because you cannot save your maps--they look good on the screen though.

Harry Allen

: Mining ban on Arizona strip

2011-10-28T09:06:00.000-07:00

Lee Allison's Arizona Geology blog published this info about the mining ban in the Arizona Strip

Arizona Geology: Mining ban on federal lands advanced in northern Arizona:

'via Blog this'

Harry Allen

Big and Little Chino Active Faults

2011-10-26T15:27:00.000-07:00

Here is a video about the Little Chino fault zone by Brian Gootee Who will be speaking at our November 8 meetingAnd a video on the Big Chino Fault Harry Allen

Flash flood Video

2011-10-18T09:03:00.000-07:00

Amazing Flash flood Video

Harry Allen

Erionite

2011-10-07T10:29:00.000-07:00

Terry Steinborn sent me this article:This is an article I ran across this morning on the dangers of Erionite. This is a major cause of epithilioma, the cancer associated with asbestos inhalation. Because of its widespread distribution, the article should be of interest to the Geo Club. Could you put it on the Blog?Open Channel - Health concerns grow over little-known mineralHarry Allen

Earth Science at the Grand Canyon

2011-10-01T16:58:00.000-07:00

Earth Science week at the Canyon October 9-11 Grand Canyon National Park - Grand Canyon National Park to Celebrate Earth Science Week (U.S. National Park Service)

Virginia Quake

2011-08-24T10:21:00.000-07:00

Here is a good link to the Mountain Beltway blog abour the recent Earthquake in Virginia

http://blogs.agu.org/mountainbeltway/2011/08/23/the-mineral-va-earthquake-of-august-23-2011/

Harry Allen

2011-05-24T15:58:00.000-07:00

Arixona Geology has an interesting article on why they are mapping in our area.

Harry Allen

Where to live to avoid disaster.

2011-05-05T15:03:00.000-07:00

The New York times has an interactive map showing the "safest" places to avoid a disaster. They seem to downgrade the Earthquake and Volcano Risk near the Cascade subduction zone on Washington and Oregon.

Harry Allen

Science Daily article on Colorado Plateau

2011-04-29T08:53:00.000-07:00

A new Science Dailey article on the Colorado Plateau and why it is a high undeformed blob in the middle of a mountain system. It has always been a problem that has been hard to solve without the newest seismic CAT Scan data.

Geologists solve mystery of the Colorado Plateau

ScienceDaily (2011-04-28) -- Scientists have figured out why the Colorado Plateau -- a 130,000-square-mile region that straddles Colorado, Utah, Arizona and New Mexico -- is rising even while parts of its lower crust appear to be falling. The massive, tectonically stable region of the western United States has long puzzled geologists. ... > read full article

Harry Allen

Article on the Montezuma well

2011-04-25T11:06:00.000-07:00

Wayne Ranney had a link to this article in the Camp Verde Bugle about the new theory of the source of the water in Montezuma Well

http://cvbugle.com/main.asp?SectionID=1&SubSectionID=1&ArticleID=30200

Harry Allen

Our Faults make news

2011-04-02T08:59:00.000-07:00

The Prescott Courier had a front page story on the Little Chino Fault found in thye Geologic Surveys new mapping.

Unearthed: Newly discovered fault sheds more light on Upper Verde Basin - The Prescott Daily Courier - Prescott, Arizona

Harry Allen

| How Old is the Grand Canyon

2011-03-31T09:34:00.000-07:00

Wayne Ranney has an article in Geology.com about the are of the Grand Canyon.

Age of the Grand Canyon | How Old is the Grand Canyon

Harry Allen

Clarkdale M3.7 Earthquake

2011-03-25T13:01:00.000-07:00

Groundswell has a blog posting on the recent Clakrdale quake

Clarkdale M3.7 Earthquake

Harry Allen

How Did the Rocky Mountains Form? | Formation of the Rockies

2011-03-20T10:21:00.000-07:00

Here is an interesting new theory on how to get a mountain range far away from the coast.
From Geology.com:

How Did the Rocky Mountains Form? | Formation of the Rockies

Harry Allen

Satellite Photos - Japan Before and After Tsunami - Interactive Feature - NYTimes.com

2011-03-14T16:21:00.000-07:00

Great before and after photos of the power of a tsunami. Catastrophism in action.

Satellite Photos - Japan Before and After Tsunami - Interactive Feature - NYTimes.com

Harry Allen

Georneys: Why are there Earthquakes and Volcanoes in Japan? In Response to: Magnitude 8.9 Earthquake & Tsunami in Japan

2011-03-11T14:51:00.000-08:00

Georneys blog had a good well ilustrated explanation about why there are earthquakes in Japan

Georneys: Why are there Earthquakes and Volcanoes in Japan? In Response to: Magnitude 8.9 Earthquake & Tsunami in Japan

Harry Allen

Mountain Beltway | Art imitates art

2011-03-11T14:40:00.000-08:00

Tsunami art imitated by travel time map:

AGU Blogosphere | Mountain Beltway | Art imitates art

Harry Allen

Map of tsunami Energy

2011-03-11T14:32:00.000-08:00

Here is a NOAA map of the energy of the tsunami from the 8.9 quake off Japan

http://wcatwc.arh.noaa.gov/2011/03/11/lhvpd9/energylhvpd9-04.jpg

Harry Allen

Birth of the Grand Canyon on TV

2011-02-25T13:43:00.000-08:00

Wayne Ranney sent this to us.

Last night was the premier showing of "Birth of the Grand Canyon" on Nat Geo TV. I heard it was done really well. If you missed it, the show will also air on Feb. 28 at midnight and March 3 at 1 PM (set your DVR players). "BIrth of the Grand Canyon" is part of the "Naked Science" series on Nat Geo TV.

For the Cableone viewers that is channel 327 Monday Feb 28 from midnight to 1:00 AM. Set your DVRs by Sunday bed time.

Harry Allen

Arizona Geology: 3D fly-through of Grand Canyon

2011-02-25T12:19:00.000-08:00

Check the fly through of the Grand Canyon and the Minerva Demos From Arizona Geology

Arizona Geology: 3D fly-through of Grand Canyon

Harry Allen

Big Chino Fault has a long history of big quakes - The Verde Independent - Cottonwood, Arizona

2011-02-04T15:44:00.000-08:00

A note on the Big Chino Fault:

Big Chino Fault has a long history of big quakes - The Verde Independent - Cottonwood, Arizona

Harry Alle

Permian Extinction

2011-01-26T09:05:00.000-08:00

It was ugly at the end of the Permian- not a good place to time travel to.

Volcanoes Ignite Coal Fires that Caused the Permian Extinction

Harry Allen

Geologic Map of the Chino Valley North 7½' Quadrangle, Yavapai County, Arizona | AZGS Document Repository

2011-01-24T12:27:00.000-08:00

Here is a link to the new Chino valley Quad Geologic map. You can download the .pdf file right to your computer.

Geologic Map of the Chino Valley North 7½' Quadrangle, Yavapai County, Arizona | AZGS Document Repository

Harry Allen

Magnitude 3.5 -near Sedona

2011-01-24T12:09:00.000-08:00

Here is a link to the 3.5 earthquake near Sedona. If you felt the earth move after the football game -- this gives all the details:

Magnitude 3.5 - ARIZONA

It seems to be from one of the faults in the Verde Valley Grabben.

Harry Allen

Arizona from Space Satellite Posters

2011-01-12T10:17:00.000-08:00

The State Geologic Survey has some great Landsat Satellite posters of The Grand Canyon,Flagstaff,and Tucson. Cost is $5.oo per poster. Set of Seven for $28.00.

AZGS | Arizona Geology Satellite Poster Sale

Harry Allen

Meteor Crater in Earthly Musings Blog

2010-12-18T09:44:00.000-08:00

Wayne Ranneys blog Earthly Musings has a account of his trip into Meteor Crater. Good photos of a place most people do not see.

Earthly Musings - The Blog Site of Wayne Ranney

Harry Allen

Wayne Ranney leads a great trip to the Trail of Time at the South Rim

2010-11-22T13:12:00.000-08:00

On a windy and cold last Saturday Wayne Ranney lead the club on a great trip through the Trail of Time at the South Rim. The trail is a hike where every million years is one meter. There are brass plaques every 10 million years. We hiked all the way from the Precambran to the present-about two billion years.

Rock samples taken from all of the formations in the canyon are on pedestals at the appropriate place on the trail.

It was a great trip and a great way to view Geologic Time.

Harry Allen

Wayne Ranney: wins book award

2010-11-06T13:50:00.000-07:00

Congrats to Wayne Ranney for winning another book award for "Sedona Through Time"

Details are in his blog:

Earthly Musings - The Blog Site of Wayne Ranney: "Sedona Through Time" Wins National Award!

Harry Allen

Ron Blakey Wins Honor

2010-10-14T08:16:00.000-07:00

Ron Blakey from NAU has won the "Geosciences in the Media Award" from The American Association for Petroleum Geologists (AAPG). The award is presented for the "significant contribution of his website." Check out his impressive website at http://jan.ucc.nau.edu/~rcb7/.

Ron and Wayne Ranney have recently published Ancient Landscapes of the Colorado Plateau, one of the must-own books for our region.

Ron has both spoken to the Central Arizona Geology Club and will be leading a field trip for us this spring.

Geo Field trip to Drake Cement

2010-10-02T16:17:00.001-07:00

Friday we had a good short Club Field trip to the Drake Cement Plant. 19 people went on the trip to see the impressive operation and the Redwall quarry where they mine the limestone which they cook into cement.

There are more photos on the Central Arizona Geology Facebook Group Page

Harry Allen

Triassic of the Petrified Forest

2010-09-15T16:07:00.000-07:00

Bill Parker gave a Great Talk to the club last night. They have been doing detailed work on the stratigraphy of the park -- for the first time in 100 years. They have put together a really good picture of how it was in the late triassic.

His paper on the park is open access so you can look at all the details --

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0009329

Harry Allen

: Natural gas pipelines in Arizona

2010-09-15T09:14:00.000-07:00

From the Arizona Geology blog. The location of the big pipelines in Arizona for those concerned about ruptures in their backyard.

Arizona Geology: Natural gas pipelines in Arizona

Harry Allen

More Earthquake photos from New Zeland

2010-09-09T14:49:00.000-07:00

Here is a link to more earthquake photos from New Zeland- note the right lateral dispacement and the enechalon faulting pattern

Living in a Maelstrom (47 pics) » Izismile - Pictures, videos, games and more

Canterbury Earthquake - first flyover of fault trace

2010-09-07T16:43:00.000-07:00

Here is a cool flyover of the Christchurch earthquake fault trace.From YouTube and with thanks to the Arizona Geology blog

Shake Map for New Zealand quake

2010-09-04T15:58:00.000-07:00

Here is the Shake map of the recent 7.0 quake in New Zealand:

http://earthquake.usgs.gov/earthquakes/shakemap/global/shake/2010atbj/

Harry Allen

Club has gone social networking

2010-08-17T10:34:00.000-07:00

We have started a Facebook Group named Central Arizona Geology Club. To look at it first login to Facebook and then search for the Group. Then hit the LIKE button to join the Group and get the cool postings - and add your own.

This gives us a place for people to post and share interesting Geo-Pictures or Geo-links.

Harry Allen

Arizona Geology | Online!

2010-08-02T10:24:00.000-07:00

Here is the online version of Arizona Geology:

Arizona Geology | Online!:

Harry Allen

Chrono Zoom

2010-07-14T08:38:00.000-07:00

This is a great tool for visualizing time.

Chrono:

Thanks to Lee Allison for finding this.

Harry Allen

Ron Blakey 's home page

2010-07-07T16:12:00.000-07:00

Ron Blakey's home page is a great source of the information and paleogeographic maps he has made and compiled. It is the best compilation of the geologic literature ever!

Ron Blakey, Colorado Plateau Stratigraphy and Geology and Global and Regional Paleogeography:

Harry Allen

Grand Canyon Caverns -Worlds Deepest Motel

2010-06-15T09:47:00.000-07:00

Thanks to Arizona Geology for finding this. It is the coolest place in the state --Get Down.

Grand Canyon Caverns - Press Release

Harry Allen

New report on Sedona sinkholes

2010-05-13T15:40:00.000-07:00

Paul Lindburg has published his report of the Sedona Sinkholes (AZGS Cr10-C)

Arizona Geology: New report on Sedona sinkholes

It is available for download at the AZGS site.

Harry Allen

Possible flowslide (not a sinkhole) in St Jude, Canada

2010-05-11T15:01:00.000-07:00

Dave's Landslide blog has pictures of the "sinkhole" that was a flowslide that killed 4 people outside of Montreal.

Dave's Landslide Blog: Possible flowslide (not a sinkhole) in St Jude, Canada

Harry Allen

Eyjafjallajökul - slide show

2010-05-04T09:50:00.000-07:00

Here is a link to a long slide show (in Icelandic) with some great photos of the eruption and what it has done to the people in its wake. Hit the Spilla button to make it start.

Eldgos við Eyjafjallajökul - Myndasafn mbl.is

Harry Allen

|Iron King Mine And Humboldt Smelter Update

2010-05-04T09:44:00.000-07:00

Here is a update on the Iron King Superfund site. It is a link to the EPA site.

Site Overview|Iron King Mine And Humboldt Smelter |US EPA |Region 9|Superfund

Harry Allen

Sinkholes in the Kaibab Limestone

2010-05-03T16:30:00.000-07:00

Arizona Geology has a photo of the McCauley Sinks which we saw on our Holbrook Basin Field Trip.

Arizona Geology: Sinkholes in the Kaibab Limestone

Harry Allen

Boobquake 2010 day

2010-04-26T09:24:00.000-07:00

Arizona Geology reports on natural disasters as punishment.

Arizona Geology: Natural disasters as punishment

Harry Allen

Start looking for Tungsten

2010-03-31T09:01:00.000-07:00

Arizona Geology has an article about what the state legislature is doing to protect us from efficient light bulbs.

Arizona Geology: Get ready for the great Arizona tungsten rush

Harry Allen

Farallon plate collision and Basin and Range

2010-03-23T09:26:00.000-07:00

Here is a link to Tanya Atwater's animation of the Farallon collision with north america and the formation of the basin and range. It is a great way to visualize what happened. Click on the download in the upper right part of the page

Past Projects

Harry Allen

Holbrook Basin Karst Field trip

2010-03-11T09:41:00.000-08:00

Jim Neal (hjneal@q.com) is putting together a field trip to the Holbrook Basin April 9-11 2010 for the Geology Club. Here is his itinerary for the trip:

Itinerary: Holbrook Evaporite Karst Field Trip, April 9-11, 2010

Day 1, Friday, April 9th: (OPTIONAL, but Petrified Forest is also underlain by Permian evaporites and has dissolution/collapse features of interest, plus the silicified wood – our State fossil!

Rendezvous in Holbrook @ 0915 at McDonald’s (Exit 286). Driving time from Prescott is ~3 hours (195 miles via Ash Fork and I-40). Those not wanting to leave Prescott @ 0600 can find numerous motels and restaurants in Holbrook for overnight on Thursday.
Depart Holbrook @ 0930, heading to south entrance of Petrified Forest via Highway 180 and arriving PFNP ~1000. Numerous stops and side hikes during the day, arriving north Park Visitor Center ~1600 (see separate summary for PFNP). Park closes @ 1800; remainder of day can be spent at Visitor Center or Gift Shop. Return to Holbrook via I- 40, then to Snowflake.
Overnight accommodations can be secured at Fools Hollow State Recreation Area (camping) on the North side of Show Low, or at Comfort Inn, 2055 S. Main St., Snowflake (928-536-3888). Other Snowflake motels and B&Bs are also available – at lesser and greater cost. Alternatively, Holbrook accommodations can be secured for both nights.

Day 2, Saturday, April 10th: (PRIMARY TRIP) (See separate summary AND trip road log)

Rendezvous @ 0930 at intersection of Highways 277 and 77 in Snowflake. Driving time from Prescott via Ash Fork and I-40 is 3½ hours (225 miles), enabling a 0600 Prescott departure. High clearance vehicles are strongly recommended, but 4WD is usually unnecessary unless muddy conditions exist. Back road, isolated travel is required, so bring your lunch, water, hiking boots, sunscreen, cameras, rain jackets, first aid, and other accoutrements for the whole day. Day 2 Geostops will terminate ~1700 at a remote location about 7 miles off the highway and some 25 miles from Holbrook.
Overnight camping available at remote location with NO facilities and NO water. Numerous motels and restaurants are available in Holbrook for overnight.

Day 3, Sunday, April 11th: Depart McDonald’s @ 0915, heading to Winslow via I-40. Head to Chevelon Canyon and McCauley Sinks, arriving ~1015. Back road, isolated travel is required, so bring your lunch, water, hiking boots, sunscreen, cameras, rain jackets, first aid, and other accoutrements for the whole day. Day 3 Geostops will terminate ~1400, allowing for return to Prescott ~1730, or optional stops at Meteor Crater, Grand Falls, or Walnut Canyon.
See additional summaries for OPTIONAL stops (on your own) at Meteor Crater, Walnut Canyon, and Grand Falls – following the regular field trip…

We will be sending more details to those who sign up with Jim.

Harry Allen

Geologic Maps of the 50 United States

2010-03-07T12:02:00.000-08:00

Andrew Alden of About Geology has compiled all the 50 state geologic maps. You can take them on your travels

Geologic Maps of the 50 United States

Harry Allen

Uranium levels in water near mines no different than from natural orebodies - USGS

2010-02-22T09:42:00.000-08:00

Arizona Geology reports from the USGS that the Uranium levels in the water no different near mines than near the natural ore bodies.The Breccia pipes may not be so evil after all.

Arizona Geology: Uranium levels in water near mines no different than from natural orebodies - USGS

Harry Allen

Utah's Dino Graveyard

2010-02-08T11:38:00.000-08:00

Dinochick ReBecca Hunt-Foster has compiled a set of 5 Videos on the Early Therizinosaur graveyard found in Utah. It is a precursor to the Therizinosaur that was at NAUamd the subject of Dave Gilette's talk.

Dinochick Blogs: Utah's Dino Graveyard

Harry Allen

Mexico’s Cave of Crystals -

2010-02-02T13:57:00.000-08:00

BlogSci has an amazing video of what could be some of the worlds largest Gypsum crystals

Amazing Video of Mexico’s Cave of Crystals - blogSci.com

Harry Allen

Verde River, AZ flood update -

2010-02-02T08:44:00.000-08:00

Here is a update on the flooding on the Lower Verde from Kyle House of Geologic Froth and the Survey.
Verde River, AZ flood update - Fresh Geologic Froth

Harry Allen

Haitian Quake in NYTimes.com

2010-01-30T14:41:00.000-08:00

Jim Neal sent this in --from the New York Times

Deadly Haitian Quake in the Seismically Active Caribbean - NYTimes.com

Harry Allen

Museum of Northern Arizona Exibit

2010-01-07T13:54:00.000-08:00

Ancient Landscapes of the Colorado Plateau
by Ron Blakey and Wayne Ranney
Exibit Opening, Presentation and Book Signing

MNA Branigar/Chase Discovery Center
Sunday Jan 10,2010
2:00 to 4:00
Directors Welcome at 2:00

"Prepare yourself to be transported back in time through the magic contained in layers of rock"

Harry Allen

Devils Kitchen Sinkhole Sedona

2009-12-30T15:15:00.000-08:00

Here is a link to Paul Lindberg's Article on the Devils Kitchen Sinkhole in Sedona. This is one of the sinkholes we visited on the Sedona field trip that Paul lead for the Club.

Arizona Geology | Online!

Happy New Year to All

Harry Allen

Great Photo of mud bubble exploding

2009-12-23T14:22:00.000-08:00

This is a link to a great photo of a mud bubble exploding at the giant mud volcano in Indonesia.They can be up to 30 feet in diameter.

From Close Up or Far Away, Amazing Volcano Photos | Science & Nature | Smithsonian Magazine

Happy holidays to all

Harry Allen

Yellowstone’s “Super Plume” of Molten Rock Bigger Than Originally Thought | Courtney Lowery | New West Blog | NewWest.Net

2009-12-21T09:12:00.000-08:00

Ed Wolf sent us an interesting article on the Yellowstone "Super Plume"
It would be a Super volcano if it ever went off again.
Yellowstone’s “Super Plume” of Molten Rock Bigger Than Originally Thought | Courtney Lowery | New West Blog | NewWest.Net

Harry Allen

Paul Lindburgs Grand Canyon models

2009-12-19T11:52:00.000-08:00

Delores Manburg sent us a link to the You Tube videos of Paul Lindburg's Grand Canyon Lecture about the origin of Grand Canyon.

Paul gives the very best overview of the geologic history of the Canyon. His handmade models are the Greatest!!

Each of the videos run about 7 minutes.
We will be getting the rest of Mr. Lindberg's presentation posted as soon as we can work our way through them.
Here are the links
http://www.youtube.com/watch?v=oGGgwlvOUgc - 1st half
http://www.youtube.com/watch?v=3xU9a4iZuuc - 2nd half

Copy the links if they don't work.

Harry Allen

Video of Submarine Valcanic Eruption

2009-12-17T15:06:00.000-08:00

Here is a first video of a volcanic eruption at about 4000 ft sub sea -- this is how pillow lava is formed.

Harry Allen

Arizona topo maps

2009-12-09T07:57:00.000-08:00

Lee Allison reports in his blog that there are new downloadable topo maps available for Arizona

Arizona Geology: Arizona coverage with new generation topo maps

Arizona topo maps

2009-12-09T07:55:00.000-08:00

Lee Allison our state geologist reports :

New next gen topo maps are available for Arizona. They can be downloaded and printed on your printer.

Arizona Geology: Arizona coverage with new generation topo maps

Harry Allen

Geology Story of the Verde formation

2009-11-21T15:34:00.000-08:00

Steve Ayres of the Verde News wrote a good overview of those White rocks in the Verde Valley

geology story

Harry Allen

End of the BIF's

2009-11-12T13:28:00.000-08:00

Another article on what could have been the cause of the end the Banded Iron Formation Deposition about 1.85 Billion years ago.

Giant Asteroid Impact Could Have Stirred Entire Ocean | Wired Science | Wired.com

Harry Allen

Banded Iron Formations:

2009-11-10T08:33:00.000-08:00

a "new" BIF depositional model:

Banded Iron Formations: Interaction of Air, Water and Rocks

Some thoughts on how our BIFs got here.

Metamorphic Rocks Class change

2009-11-09T15:21:00.000-08:00

Hard Rock Fans take note:

Terry Steinborn's Metamorphic Rocks class At Yavapai Community Ed has been changed to the SpringII Session (April-May). It was going to be given in the SpringI session.

Harry Allen

Happy "birthday," dear planet

2009-10-23T13:35:00.000-07:00

(From the Nova Geoblog). Happy 6013th Birthday Earth.

NOVA Geoblog: Happy "birthday," dear planet

??How many of our legislators still believe in this Date is correct?? Are they having a birthday party today?

Harry Allen

'Shiva' Crater In India

2009-10-18T11:10:00.000-07:00

Look at this giant Crater identified off India( 500 km diameter)

PALAEOBLOG: Did 'Shiva' Crater In India Doom The Dinosaurs?

Harry Allen

'Scary' climate message from past

2009-10-15T14:29:00.000-07:00

The blog Arizona Geology had a link to this news- It is sobering if you know anyone on the coasts. So long Flordia with a rise of the sea levelof 80 to 130 feet.

BBC NEWS | Science & Environment | 'Scary' climate message from past

Harry Allen

The Big One Video

2009-10-10T09:06:00.000-07:00

Here is a video of what could happen to California when the "Big One" goes near LA

Harry Allen

The Arizona Geological Survey

2009-09-29T16:52:00.000-07:00

Take this survey to rate the programs of the State Survey. It could determine what goes extinct.

The Arizona Geological Survey | Home |

Harry Allen

Arizona Memory Project : Browse

2009-09-27T10:19:00.000-07:00

Arizona Geology has a link to old geologic reports from some of the mining districts around the state. Some old photos are also in the data

Arizona Memory Project : Browse

Harry Allen

Walking tour of historic Walker

2009-09-13T11:09:00.000-07:00

Barbara and Jim Marcel have graciously offered to lead a 5.5 mile hike of the historic Walker mining district on Saturday, September 26. We will meet at 8 am at the Petsmart parking lot by Walker Road to carpool. Bring a lunch, water, and wear appropriate clothing including good walking shoes. The trip should be over in early afternoon. No pets, please.

Fall Adult Education Geology Classes

2009-09-01T10:55:00.000-07:00

Yavapai College has an upcoming class on the Geology of Arizona's Parks & Monuments taught by Terry Steinborn and Harry Allen. Classes will be on Thursdays, 9-11 am, at the college from September 17 through October 22. There will also be a separate Edventure field trip -"The Volcanoes of Northern Arizona" to the Flagstaff area on October 23. Visit www.yc.edu/ce (class), www.yc/edu.edv (field trip) or call 717-7755 to register.

| Geologic Structures

2009-08-07T15:57:00.000-07:00

Check out George Davis's rock collection in 3D --So that you can see all sides of the rock structure. They take a little time to load but it is almost like looking at a hand specimen.

Welcome | Geologic Structures

Harry Allen

Chinleana: Repeat Photography

2009-07-27T10:55:00.000-07:00

Bill Parker at the Petrified Forest has an interesting set of repeat photos fron the Park. As you can see there has not been much change in the rocks since the 1920's. Erosion is slow in the high desert.

Chinleana: Repeat Photography - Charles Camp and Annie Alexander - 1921

Harry Allen

San Pedro River report presages Verde's future

2009-07-27T10:48:00.000-07:00

The Camp Verde Bugle does a good job explaining how the San Pedro decision could effect the Water Wars for the Verde water. "Sub flow" is what the battle is all about.

CVBugle - San Pedro River report presages Verde's future

This will be used in the law suits for the Verde Waters

Harry Allen

Acid rain responsible for mass extinction at T/J boundary

2009-07-18T15:19:00.000-07:00

Triassic/Jurassic Extinction Info. from new paper.

Stratigraphy.net internals: Acid rain responsible for mass extinction at T/J boundary

Harry Allen

Great NewTopographic Map of the World

2009-07-15T15:08:00.000-07:00

To all Map lovers:

This is a very cool Topographic map of the World

The Most Complete Topographic Map of the World

Harry Allen

State Senator: 'Earth has lasted 6,000 years without environmental laws'

2009-07-03T10:58:00.000-07:00

Lee Allison's post on one of our senators

Arizona Geology: State Senator: 'Earth has lasted 6,000 years without environmental laws'

Do you ever wonder how we get such great laws in Arizona???

Harry Allen ( no relation )

WOOLY MAMMOTH IN SCOTTSDALE?

2009-06-30T14:48:00.000-07:00

Are they working on making Mammoths in Scottsdale?? Should they be the Mexican Hairless variety for summers in the Valley? Check this post from Archea:

ARCHEA: WOOLY MAMMOTH

Harry Allen

Sarychev Peak Eruption

2009-06-24T16:06:00.000-07:00

This is a great shot of a volcanic eruption on June 12 2009

Sarychev Peak Eruption, Kuril Islands : Image of the Day

Harry Allen

Clean Energy and Quake Fears

2009-06-24T16:01:00.000-07:00

This is a article that Terry Steinborn sent us about Geothermal Energy

Deep in Bedrock, Clean Energy and Quake Fears - NYTimes.com

Harry Allen

The Stone Goat

2009-06-16T13:46:00.000-07:00

There is a rock and fossil shop in Prescott:

Zen Cart!, The Art of E-commerce

It is in the parking lot at the southeast corner of Cortez and Sheldon streets(between the two pizza places)

Check it out.

Harry Allen

Verde News - Big Chino: The big water bank

2009-05-29T09:04:00.000-07:00

Here ia a Verde News article on the Big Chino aquifer-Where Prescott would like to take its the water to ship in its pipeline to our homes .

Verde News - Big Chino: The big water bank

Harry Allen

Gold Prospecting --Old AGS papers

2009-05-19T16:02:00.000-07:00

The AGS has put some of the old Gold Papers on the web. Make your fortune this Summer.

AZGS Mineral Resources Gold Prospecting

Harry Allen

Iron King mine fact sheet

2009-05-11T11:29:00.000-07:00

The EPA released a fact sheet on our local Super Fund site at the Iron King Mine in Dewey.

IKM May 09.pdf (application/pdf Object)

Stay away from Chaparral Gulch.

Harry Allen

Lost World -- dinosaurs survived mass extinction

2009-05-07T15:46:00.000-07:00

News of some lonely Hadrosaurs in New Mexico after the K/T event

Science News Examiner: Evidence shows some large dinosaurs survived mass extinction

Birds may not have been the only Dinosaurs to survive.

Harry Allen

Toroweap Point - Grand Canyon

2009-05-06T15:52:00.000-07:00

Last week we camped at Toroweap Point and had a great View of the Uinkaret lava flow that formed lava falls when it cascaded nearly 3000 feet into the Grand Canyon.

Here is a gigapan of the flow with Lava Falls below on the river.

Harry Allen

Beach Boys song -- Out on the Coconino

2009-05-06T15:05:00.000-07:00

Here is a piece from The Geotripper Blog for the summer on the plateau

"In the meantime, for those of you who will be headed out to the open range this summer, especially the southwest that I love so much, I offer another bit of poetry from the archives. In honor of the Beach Boys, it can be set to the tune of "Kokomo" (thanks to our department poet laureate Vicki)

Out on the old plateau
Far away from Modesto
We're camped out on the Navajo
With no place to go
Out on the Coconino

Arches had the wind
Lovely was the Grand Canyon
Cedar Mesa was the best there'd been
It felt like Heaven
Out on the Coconino

Zoraster, disaster, drive a little faster
Chinle, please hurry, we're all a little weary
Jurassic, Triassic, we say it's just fantastic
Colorado Plateau
Out on the Coconino

Just when we start to snooze
CB crackles with Garry's news,
"Hey guys? Can you name that rock,
back there at six o'clock?"
Out on the Coconino

Her Garry! It's scary!
Those cliffs were really hairy
Arches and bridges, volcanoes, faults and itches
Surprises, moonrises, this trip has had some hitches,
but best of all, we're still all
out on the Coconino!

Harry Allen

Field Trip Details

2009-05-06T09:15:00.000-07:00

For the May 9 Flagstaff field trip:
Car Pool from Prescott leaves promptly at 7:30 from the Fry's parking lot at Willow Creek and Sandretto. Park behind the Wells Fargo bank.
9:15 Meet at the Museum of Northern Arizona. Regular admission is $7.00. We will split into two group with tours of the therizinosaur exhibit led by Dave Gillette, curator of geology and discoverer of the dinosaur. While one group tours the exhibit, the other group can explore the museum. From 9:15-9:45 Wayne Ranney will be available to describe the geology exhibits at the museum.
12:00 Leave museum, take Rte 180 north and west to Red Mountain.
12:30 Meet at Red Mountain parking lot.
12:30-1:00 Picnic lunch.
1:00-1:30 Hike in to Red Mountain to explore this interesting cinder cone. Nancy Riggs and Ed Wolfe will be available to discuss the geology.

Arizona /New Mexico state line

2009-04-22T09:11:00.000-07:00

Here is a link to the story about the real location of the Arizona New Mexico state line . It seems to be at a different location than the Four Corners Marker/Park on the Reservation.

The American Surveyor Magazine - Land Surveying and Mapping Online

Harry Allen

Phytosaur Skull Excavation

2009-04-15T09:06:00.000-07:00

Bill Parker posted the first in a series about a Phytosaur being excavated near the Petrified Forest. It is interesting to see what they look like in the field when first found.

Chinleana: Phytosaur Skull Excavation

Harry Allen

Alaska's Mount Redoubt

2009-04-12T09:52:00.000-07:00

Great pictures of the eruption of Mt Redoubt

Alaska's Mount Redoubt - The Big Picture - Boston.com

Harry Allen

Verde Water Case What is Subflow?

2009-04-11T16:48:00.000-07:00

Lee Allisons blog has this reference to an interesting legal case. It is about what is "Subflow" and what is "Ground Water". It could change the legal definition of water rights in the state.

Arizona Geology: Groundwater-surface water subflow case in the Verde Valley

Does surface water stop at the bottom of a river?

Harry Allen