General Contents - [Richwoods 15' quadrangle NE 1/4]: Stratigraphy - Derby-Doerun, Eminence, Gasconade, Gunter, Potosi, Roubidoux, Van Buren: Minerals - barite, calcite, galena, hematite, lead, limonite, pyrite, quartz, sphalerite: Lithologies - breccia, chert, conglomerate, dolomite, limestone, quartzite, sandstone, shale, tripoli: Mines/quarries - barite mines, lead pits; Desoto Mining, National Mining, Superior Mineral: Paleontology - Cryptozoans, gastropods[?]; others?: Hydrology - Named streams. Springs.: Structure - Joint, strikes. Dips, strikes. Contacts, elevations. Faults, drag, one strike. Anticline, arch, folds, flexures. Cross beds, ripple marks, sun cracks, mud cracks. Slickensides.: Oil/gas - [none noted]: Karst - [none [...]
