U.S. Geological Survey Professional Paper

Alaska augite borehole Bransonia CALL Cambrian Claystone clinopyroxene coal bed compositions compressive deformation deposits Devonian dikes displacement east rift zone Eopteria eruption Euchasma excavation figures Formation gape gastropods genus Geological Survey gratacapi groundmass Hippocardia holotype Horizon and locality Kalaupapa Kalaupapa section Kilauea Koae fault system Kobayashi Kodiak land lavas lb/inē lectotype Left-lateral view Limestone Lower Ordovician magma mantle Mauna Mauna Loa middendorffi Grewingk Middle Ordovician minerals mining Miocene Molokai monoplacophorans Mytilus middendorffi oil shale olivine overburden pallial paratype pegma pelecypods percent phenocrysts plagioclase plate Plicatomytilus Pojeta posterior principal stress probe protoconch radial retractor Ribeiria rift zone Right-lateral view rocks rostroconchs samples sandstone sensor shale shell layer showing smectite south flank species specimens Stratigraphic Stratigraphic distribution stress changes stress concentration SUBROUTINE SUBROUTINE NAME subsidence surface Technophorus tion tunnel U.S. Geol USNM valves ventral vertical Volcano