> Geology Blogging [Ron Schott’s Geology Home Companion Blog] I don’t personally have any detailed knowledge of the geology there (wrong side of the San Andreas in that region), but looking at the Santa Cruz 1:250,000 geologic map it appears to be constituted primarily of Pliocene marine rocks (probably not real strong stuff) at the northwest end and Pliocene and Pleistocene nonmarine rocks further south. These are all fairly young (geologically) and presumably are only weakly lithified - making them prime candidates for landsliding.

Some related posts from Technorati and Google. [] The Megalithic Portal and Megalith Map: Researchers zero in on ...: Most scientists believe that central Africa was the springboard for hominid evolution in the late Miocene or early Pliocene - about 4-5 million years ago. However, there is much less agreement on when hominids migrated out of Africa.

Acepilots.com [] The Politburo Diktat » Blog Archive » The Paul Effect: I have a MS in Geophysics, a BS in Geophysics with a minor in Geology and math. That happens to be the age off the oldest Earth age rocks.

[] Reflexions: Footfalls (Ultralight Backpacking): In ways that were almost mystical, Tom could read the tides of rock the way ancient mariners read the sea. It was both an education and an honor to walk with him in the canyons of his native country.

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