Department of Geology, Brooklyn College and Graduate School of the City University New York, Brooklyn, NY 11210, USA.
Northeastern Science Foundation, Rensselaer Center of Applied Geology, 15 Third Street, PO Box 746, Troy, NY 12181-0746, USA.
Arco Oil & Gas Co., 2300 West Piano Parkway. Plano Parkway, TX 75075, USA.