Moving to Facebook

For up to date postings we have moved to Facebook group Central Arizona Geology Club

Mining the Skull Valley Tuff

Here is a post on the Pozolan which could be mined in Skull Valley

Arizona Geology post

Harry Allen

When and how did plate tectonics begin on earth? | EARTH Magazine

When and how did plate tectonics begin on earth? | EARTH Magazine:



'via Blog this'

Grand Falls are flowing

Photos from Daryl and Karen Austermiller's flight over the falls. Note the black lava damn that caused the Little Colorado River to flow around it and form the falls as it returned to its former river bed.

Harry Allen

Evidence for an Old Canyon

the Geology Page presented some of the evidence for an Old Canyon

grand-canyon-at-least-70-million-years-old.html

The debate continues,

Harry Allen

 A new lead zinc silver deposit found in southern Arizona.


http://arizonageology.blogspot.com/2016/09/zinc-lead-silver-mineral-deposit.html


Harry Allen

The geologists are coming

From the AZ geologic survey

 A short geology rap

Harry Allen

Geo tour of Northern Arizona

The Arizona  Geologic Survey posted a  Geo tour of Northern Arizona -- A virtual Field trip

Geotour

Check it out

Harry Allen

airplane geology

On your next flight --find out the geology of flyover country/

rocks from above

Harry Allen

Repeat Photography Project

 Look at the comparison of the old and new photos of the glaciers in Glacier N.P.



Repeat Photography Project | Northern Rocky Mountain Science Center (NOROCK)



See the results of Global Warming.



Harry Allen

More on the Gold King Mine Blowout

Arizona Geology has more Info on the Gold King Blowout in their blog:

EPA report on Gold King


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Gold King Mine Flood

Arizona Geology  has a link to more data on the cause of the Gold King  Mine flood.

causes-of-gold-king-mine-spill-emerging

We were in the San Juans  the day it flooded the Animas River.

Harry Allen

New maps of world's ocean floor -- ScienceDaily

 Link for new ocean maps



Big data maps world's ocean floor -- ScienceDaily



Harry allen

2oo million year movie

Use this link to view a movie of the break up of Pangea

Break Up

click on  the "view movie" in the upper right panel

Harry Allen

Arizona Geology talks about Jerome Slide movement

The Jerome Jail slide is on the move again.

Jerome Jail Slide

Harry Allen

New Breccia pipe Maps from the Geologic Survey

The AZGS just put out a new map that shows a partial listing of the Breccia pipes in Northern Arizona.

Map

The high density areas with many black features are the areas that have been mapped in detail. This implies that there are many more pipes out there that are not yet mapped.

Harry Allen

Arizona Geology: Proposal to re-open Kirkland tuff quarry to supply concrete additive stirs up local community

 Here is the latest on the Tuff mine  from Arizona Geology.



Arizona Geology: Proposal to re-open Kirkland tuff quarry to supply concrete additive stirs up local community



harry Allen

Yellowstone Magma

Here is the new picture of what is happening under Yellowstone.

Yellowstone Magma

Harry Allen

Columbia Gorge Video

Terry sent a link to a 22 min. Video on the development  of the Columbia gorge.
Have a look.
Columbia Gorge

Harry Allen

Theory on why Denver and Prescott is a Mile High

Here is the word on a new theory why Denver and probably Arizona is at a high elevation.


Mile High Theory

From Terry Steinborn.