Transantarctic Mountains (IMAGE) University of Wisconsin Oshkosh Caption A team of researchers led by UW Oshkosh geologist Timothy Paulsen analyzed sandstone samples collected from the Transantarctic Mountains. Credit Photo courtesy of Timothy Paulsen, University of Wisconsin Oshkosh Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.