TPG Volume 52, Number 3
Jul.Aug.Sep 2015 INSIDE THIS ISSUE FEATURES AIPG Annual Meeting Program
AIPG National Officers Election Results Student News
Career Building Workshop at UC Davis a Success James A. Jacobs, CPG-7760 and Stephen J. Baker, MEM-2353
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AIPG Annual Meeting Registration Form AIPG 2015 AIPG Student Scholarship Winners Sections in Action
AIPG 6th Annual Conference-the Expanding World of Unconventional Shale Hydrocarbon Resources Curtis J. Coe, CPG-6240
The Certification Experience Requirement
David Abbott, CPG-4570, Ron Wallace, CPG-8153, Keri Nutter, CPG-11579 Stephanie Jarvis, YP-125, and Larry Austin, CPG-5181
Earthquakes of Mexico-As Observed from Home Seismometer in Palmer, Texas
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Stephen E. Pierce, CPG-8726 Tungsten
Jim Burnell, CPG-11609
From Bone Dry to Soaking Wet-A Commentary on Recent Flooding Throughout Texas Robert Font, CPG-3953
Attention Muscially Talented Geoscietists-Rockslide Rendevous! 47 51
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Sand dunes near Stovepipe Wells, Death Valley, CA. Winds of 10 mph or more shape the dunes at Stovepipe Wells in Death Valley National Park, CA. Quarts and feldspar grains derived from the nearby Cottonwood Mountains are the probable source. Seen in this image is the slip-face surface of an active dune. Slip-face surfaces are created when wind-driven sand particles accumu- late at the top of an active dune, overload the friction force present in angle of repose slip-face surface and create an overloaded condition at the crest of the dune. With sufficient overloading, the slip-face slope fails and collapses on the leeward slope. Repeated slope failures and new wind-driven sand accumula- tions cause the dune to migrate in the most persistent wind direction. Photo by Michael Balen, CPG-08207.
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