J. Bob in Chengdu, China

I am teaching in Chengdu, China on a teacher exchange program between Phoenix Country Day School and the Chengdu Experimental Foreign Languages School.

Tuesday, August 15, 2006

Sedimentary Rocks

Here are the rocks formed as particles settle out of water. These samples have a mass of 5.26 kg. Clockwise from upper left are coal, gypsum, rock salt, conglomerate, sandstone, siltstone, shale, fossiliferous limestone, and coquina. I picked up the coquina from the beach at low tide if front of Manny's in Rocky Point, Mexico. The rock salt was a gift from Mesa Community College.

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