Sidney W. DavisMarie and Sid Davis next to a Stage V calcrete in Grand Canyon (river mile 207 below Lees Ferry).  The basalt flow beneath it was dated (Ar-Ar) at 525ka.
Marie Davis

DAVIS² Consulting Earth Scientists
P.O. Box 734
Georgetown, CA 95634
Phone (530) 333-1405
Fax (530) 333-1009
E-mail: davis2consulting@sbcglobal.net
(Sid)
             mledavis@hotmail.com (Marie)
Website: http://nscss.org/davis2.html


Certifications: Certified Professional Soil Scientist/Soil Classifier (ARCPACS), Certified Erosion & Sediment Control Specialist (ARCPACS/SWCS).
Specialties:
Wetlands regulatory, On-site Waste Management, Soil Mapping and Classification, Soil Stratigraphy, Erosion and Sediment Control, Lake Tahoe Basin Land Capability and IPES Appeals, Expert Witness.

 

PSSAC Home Page | PSSAC Consultant's Directory