Monday, July 8, 2019

July Newsletter is Here!

Please enjoy our July Beacon available as a PDF format file via this link:

July Beacon


Catching up on some past Beacons......

Here are links to the Beacon Newsletters from April through June.  Apologies for the late posting......a few technical difficulties!  As always, links are to PDF format files.

April Beacon

May Beacon

June Beacon


Thursday, March 14, 2019

March Beacon is here

The March Beacon is now available.  Check out the info about the upcoming trip to Socorro March 23-24.

Monday, February 11, 2019

Rockhounding in the San Juan Mountains 2/14/ 2019

Please join us this Thursday--2/14/2019--for our monthly meeting.

Following a potluck dinner, the meeting will feature a presentation by Rolling Stones member G. Lee Brown entitled "Rockhounding in the San Juan Mountains".

Lee received his Mining Engineering degree from The New Mexico School of Mines in Socorro. He had a 40 year career in mining and extractive metallurgy, and retired as Chief Metallurgist with the Concentrator, Chino Mines. Lee has been mineral collecting throughout the southwest, as well as Montana, Alaska and Georgia. He has special interest in the Kelly Mining District and Smithsonite.

The February Newsletter is Now Available

Check out the February 2019 Beacon!

Please enjoy the Newsletter, which is in PDF format.

Wednesday, January 9, 2019

January 5th Field Trip Report

Water the Transformer of Our Country Side 
Ann McMahon, Text and Photography

Stoners were treated to another superb geological trip Saturday with Mary Dowse, PhD as tour guide.  Mary thoughtfully planned a trip for anyone of any capability and then supplied narratives explaining the world around us in simple lay terms.

This time we traveled from Silver City north on highway 180 to the Catwalk north of Glenwood, stopping at selected places to understand how the countryside transformed over the last million years.  Water, acting with other geological affects, was the main long-term sculptor accompanied by volcanic activity and tectonic shifts.

Sediments Near Continental Divide
Thirty to thirty five million years there was a series of calderas and volcanic activity in the Mogollon area forming the volcanic rocks found at the Catwalk. Starting 15 million years ago faulting formed the Mangas Valley which was slowly filled by sediment from the mountains.

Prior to a million years ago, water from the Gila River, and rivers and streams to the north flowing from the Mogollon Mountains, formed valley in the area of Buckhorn. Eventually the Gila River cut through the Middle Box to Redrock, drained the lake and allowed the erosion of some of the gravels in the valley.
  
Agate Found in Sediment North of Buckhorn
Example of Volcanic Gas Holes and Small Fault Lines
Mary Explains How Water Changes Landscapes

At our final stop on the Cat Walk in Whitewater Creek canyon, Mary discussed how powerful the flow of water can be in changing the shape of the landscape no matter how hard or dense the rock.  We also discussed how fires in the mountains above and changes just in the last 100 to 20 years, have had a major impact on the shape and landscape of the Canyon.

Thursday, January 3, 2019

January 2019 Newsletter

The new Beacon is now available!  

Please click here for a PDF version of the newsletter than you can view and print. 

Monday, December 10, 2018

Rolling Stones Holiday Party TODAY (12/13)!!!

Please join the Rolling Stones for a holiday pot luck party TODAY December 13th @ 6pm.  

The club will provide cooked turkey and ham.  Please bring a side dish or dessert.

Location:  Clubhouse @ 2045 Memory Lane

Meeting Program:  If you wish to participate, please bring a rock related gift valued at around $10 for an anonymous gift exchange.  If applicable, please label for male or female.  The exchange will occur after the potluck--approximately 6:45pm.

Hope to see you there!!!