Affiliation: | (1) Friedmar-Brendel-Weg 9a, 09599 Freiberg, Sachsen, Germany;(2) American Geological Institute, 4220, King St., Alexandria, VA, USA;(3) Data Analyst and Consultant Geologist, Tuscaloosa, AL 35401, USA;(4) Editor-in-Chief, 1009 23rd Avenue, Tuscaloosa, AL 35401, USA |