General Contents – Igneous Rocks Des Arc Quad. Edgehill Lesterville: Stratigraphy – [Lamotte], Potosi, Precambrian, Skrainka-type diabase: Minerals – actinolite, augite, feldspar, hematite, hornblende, limonite, magnetite, manganese, plagioclase, potassium feldspar, quartz: Lithologies – aplite, breccia, chert, conglomerate, diabase, felsite, granite, jasperoidal chert, pegmatite, rhyolite, sandstone, tuff: Mines/quarries – felsite quarry, shaft: Paleontology – [none noted]: Hydrology – [none noted]: Structure – Joint strikes, dips. Faults, trend. Dips. Unconformity in igneous sequence.: Oil/gas – [none noted]: Karst – [none noted]: Measured Sections – [none noted]: Blank/missing pages – Blank: 2, 4, 6, 22, 26, 28, 32, 34, 36, 38, [...]