Did Mars Have an 'Original' Atmosphere?.

Did Mars Have an 'Original' Atmosphere? by Dave Flang

http://www.icr.org/article/7108/ Chapter 1: Frozen Mammoth Carcasses in Siberia Through such causes almost 50,000 mammoth tusks are said to have been found in Siberia between 1660 and 1915, serving an extensive mammoth ivory trade. But this is nothing compared to those still buried, according to Vereshchagin, who calculates that the heavy erosion of the Arctic coast spills thousands of tusks and tens of thousands of buried bones each year into the sea and that along the 600-mile coastal shallows between the Yana and Kolyma [rivers] lie more than half a million tons of mammoth tusks with another 150,000 tons in the bottom of the lakes of the coastal plain. http://www.answersingenesis.org/articles/fit/mammoth-carcasses-siberia