Sedimentary Rock Layers (image) Georgia Institute of Technology Share Print E-Mail Caption These are sedimentary rock layers chronicling Earth's geological history. Credit Georgia Tech / Yale / Reinhard / Planavsky Usage Restrictions For this story or related Georgia Tech research. Share Print E-Mail 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.