TY - BOOK AU - Maxwell,John Alfred TI - Geochemical study of some chert and related deposits, AV - QE185 .A43 no. 104 PY - 1963///] CY - [Ottawa] PB - Dept. of Mines and Technical Surveys, Canada KW - Siliceous rocks KW - Geochemistry N1 - "Condensed from [the author's thesis] ... University of Minnesota, 1953."; Abstract also in French; Bibliography: p. 15-18 ER -