Origin of the Lake Superior Red Clay and Glacial History of Wisconsins̓ Lake Superior Shoreline West of the Bayfield Peninsula |
Common terms and phrases
advance appears Automba phase Bark basin Bayfield bedrock bluff boulders bulk density clayey core correlation County Creek till unit Croix dates deposited described determined developed direction Douglas till unit east evidence exposure fabric facies field Figure Geol glacial graph paper Hanson Creek Hanson Creek till horizontal ice flow indicate interpreted Jardine Creek lacustrine Lake Superior laminated major massive material measured method Michigan microfabric microfabric analysis microfoliation Minnesota Moraine Moss Need northeast notch noted occurs orientation origin overlying parallel peaks Point Port Wing position possible preferred prepared present ratio record red clay region represent River rose diagrams samples sand grains sandy sediment shear sheet shoreline shown silt similar Split Rock stratigraphic stringers structures study area subglacial suggested Superior Lobe surface Table texture thin section tion trace trends vertical Wisconsin Wright yrs BP