Central Arizona Geology Club

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 )