TY - RPRT TI - Geochemical map showing anomalous patterns for the element copper in stream sediments, filtered water, and nonmagnetic heavy— Mineral concentrates in the West Chichagof–Yakobi Wilderness Study Area, Sitka quadrangle, southeastern Alaska AU - T. D. Hessin AU - W. K. Everman AU - G. L. Crenshaw PY - 1981 DO - 10.3133/ofr8127o UR - https://pubs.usgs.gov/publication/ofr8127O ID - ofr8127O ER -