1. Geological and Environmental Sciences, Western Michigan University , Kalamazoo, MI 49008 , USA
2. School of Sustainability, Arizona State University , Tempe, AZ 82581 , USA
3. Geodynamics Department, National Research Institute of Astronomy and Geophysics , Cairo 11421 , Egypt
4. Environmental Science Division, Argonne National Laboratory , Lemont, IL 60439 , USA
5. Geology Department, National Authority for Remote Sensing and Space Sciences , Cairo , Egypt
6. Center for Space Research, The University of Texas at Austin , TX 78759-5321 , USA
7. Geology Department, Faculty of Science, Ain Shams University , Cairo 11566 , Egypt