Sandals, mats and bags dating to at least 9,000 years ago give a rare glimpse of prehistoric life documented at the Nevada State Museum in Carson City. Archaeologist Pat Barker will discuss the prehistoric textiles in the Great Basin at the museum's Frances Humphrey lecture series 6:30-8 p.m. Thursday. "Because of the excellent preservation due to the Great Basin's dry climate, Nevada is a great place to study textiles," Barker said. "Looking at children's sandals and footwear with holes where the ball of the foot or heel would have been connects us to prehistoric people in a real way."Working for …