TY - BOOK AU - Pearson, Robert Carl, CN - QE75 CN - QE75 CN - QE692.2 CY - Washington : DA - 1977. ID - 7278 KW - Geology, Stratigraphic KW - Potassium-argon dating. KW - Stratigraphic correlation KW - Stratigraphic correlation KW - Geology KW - Geology PB - U.S. Govt. Print. Off., PP - Washington : PY - 1977. T1 - Eocene rocks in northeast Washington--radiometric ages and correlation :the genetic relations among numerous patches of volcanic rocks / TI - Eocene rocks in northeast Washington--radiometric ages and correlation :the genetic relations among numerous patches of volcanic rocks / ER -