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in NE Africa and Arabia, where crust formed in
Neoproterozoic time, 544-1000 million years ago. I am also very interested in teaching about the Earth, hence my contributions about subduction zones, collisions, Afar depression, trenches, geology of Africa, the Nile and the Amazon. My wife and I have
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Scientific drilling
International Continental Scientific Drilling Program Toshka Lakes New Valley Project Arabian-Nubian Shield Afar Depression Continental collision Supercontinent Cycle Oceanic Basin
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Zyzzy was our dog, a good dog, and she died a couple of years ago. She was named after a character on one of my favorite TV shows from the 1980's, Peewee's
Playhouse. I am a 54-year old professor in Geosciences at the
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Subduction Zones
Oceanic trenches Nile Amazon Ruwenzori Range Dallas, Texas Oroville, California Porphyry Snowball Earth Hypothesis
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forms and is destroyed, using examples from the
Marianas in the Western Pacific, where crust is forming today above a subduction zone, and the
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and I discovered
Knowledge (XXG) in April 2005. My interests are in studying how Earth's
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three children, all grown. I also like to write about the town where I grew up
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42:. Below is a picture of me taken around 1957 when my family lived in
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38:and the city where I now live
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19:University of Texas at Dallas
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44:Sacramento, California
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36:Oroville, California
31:Arabian-Nubian Shield
51:File:CowboyBobS.jpg
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46:. Prescient, eh?
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55:Me around 1957
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27:lithosphere
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