August GSA Today Cover Illustration (IMAGE) Geological Society of America Caption COLLADA model of halite lattice (the online version can be rotated; click on the image above) viewed directly in a web browser. Purple-Na+. Green--Cl-. Background image: Salt evaporation ponds south of the Dead Sea. Photo: NASA. Credit Image created by Declan De Paor; photo courtesy NASA. Usage Restrictions August GSA Today cover image created by Declan De Paor; photo courtesy NASA. 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.