Close up of Peat Patch (IMAGE) Lehigh University Caption Photo of a 25-cm-long soil core collected from a peat patch on a hillslope at Imnavait Creek showing soil and ecosystem shifts and transformations from mineral tundra soil, to sedge peat and Sphagnum peat. Credit Zicheng Yu, Lehigh University 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.