The glaciers that carved Yosemite Valley left highly polished surfaces on many of the region's rock formations. These smooth, shiny surfaces, known as glacial polish, are common in the Sierra Nevada and other glaciated landscapes.
Nov 15, 2017 in Earth Sciences
In mid-September, a large treasure was unearthed during a dig at the Abbey of Cluny, in the French department of Saône-et-Loire: 2,200 silver deniers and oboles, 21 Islamic gold dinars, a signet ring,1 and other objects ...
Nov 15, 2017 in Archaeology & Fossils