TY - RPRT TI - Maps and preliminary interpretation of anomalous rock geochemical data from the Petersburg quadrangle and parts of the Port Alexander, Sitka, and Sumdum quadrangles, southeastern Alaska AU - Susan M. Karl AU - R. D. Koch PY - 1990 DO - 10.3133/mf1970c UR - https://pubs.usgs.gov/publication/mf1970C ID - mf1970C ER -