Legend (lam/app_dcl_bdrkgeo)

Simple Bedrock Geology (0) Extrusive rocks of dominantly mafic composition Extrusive rocks of mafic to felsic composition, associated volcanogenic rocks and derivative graywacke Graywacke, siltstone, shale Intrusive rocks of dominantly granitic composition Intrusive rocks of dominantly mafic composition Intrusive rocks of dominantly tonalitic to quartz monzonitic composition Iron-formation with basal quartz arenite Limestone and dolostone Limestone, dolostone, lesser sandstone and shale Mudstone, siltstone, lesser sandstone Quartz arenite Quartz arenite, siltstone intercalated with mafic volcanic rocks, carbonaceous shale and iron-formation Quartzofeldspathic gneiss, amphibolite and other high-grade metamorphic rocks Red shale Sandstone, shale, lesser carbonate Schist- granite-rich migmatite Shale and arkosic sandstone, overlain by quartz arenite Water Cretaceous, Coleraine Fm (3) Cretaceous, undivided (4) Cretaceous, Albian? (5) Jurassic bedrock (6) Paleozoic fault (8) Paleozoic bedrock (9) Dmu Dm Ou Omu Ol Cu Cmu Keweenawan sediment cover (11) Mss - Sandstone, siltstone, conglomerate Keweenawan under lake superior (12) Mau Mmd Mmg Mnb Mnl Msl Dikes, Precambrian (14) Concealed Normal Reversed Unknown polarity Form_line, Precambrian (15) Contact, concealed Fault, concealed Fault, thrust, concealed Foliation, inferred from aeromag Iron Formation Precambrian Contacts; Faults (16) Contact Contact, concealed Fault Fault, thrust Precambrian bedrock (17) APd APg APm APv Aag Acv Adt Agd Agl Agm Agn Agp Agr Ags Agt Agu Aif Akc Aks Akv Amd Amg Ami Aml Amm Amn Ams Amt Amv Aqa Aqg Aql Aqm Aqp Aqs Aqt Asc Asd Asg Ast Auv Avs Mau Mbd Mbf Mbg Mbt Mbv Mcv Mfg Mfv Mge Mlc Mld Mlf Mlg Mlt Mmd Mmf Mmg Mmi Mms Mmv Mnb Mnl Mnr Mns Mnu Mpv Msl Mss Mvu PMm Pac Pag Pai Paq Pas Pdg Pdt Pga Pgd Pgk Pgm Pgn Pgp Pgr Pgs Pgt Pgu Pif Pls Pm Pmd Pmi Pml Pmq Pmv Pmy Psi Psq Pvs