Fascinating reading, Stales, and your white's all white!!
We have some huge boulders out here in Dinwiddie County, Virginia, that my Uncle LL says were left by the the glaciers. It's a fantasy of mine to go traipsing about the countryside with a geologist to get the big view of how things rocky settled down here.
By the way, a geologist, a Dr. Walz from VCU, visited our school last year. He had lots of big rock samples. I talked to him briefly before his demonstration for our fourth graders about his samples. I asked which was the oldest in his collection as I eyed some whoppers that looked really hard and old. I was surprised when he lifted a big chunk of slate and said, "This one is four billion years old." I was surprised because the slate looked, I dunno, least old--something more frangible than the others. If I had two more lifetimes to live the first would be to study dendrology; the second would be to study geology. You're in a great field.
Best regards,
WW
