TY - RPRT TI - Preliminary description and interpretation of cores and radiographs from Clear Lake, Lake County, California: Core 6 AU - John D. Sims AU - Michael J. Rymer PY - 1975 DO - 10.3133/ofr75569 UR - https://pubs.usgs.gov/publication/ofr75569 ID - ofr75569 ER -