A Geoscience Digital Image Library

TitleNorth Shore Volcanic Group metasediments exposed along Lake Superior shoreline
DescriptionNorth Shore Volcanic Group metasediments (including cross-bedded sandstone) exposed along Lake Superior shoreline, Leif Ericson Park, Duluth, St. Louis County, Minnesota. Rubble beach consists of basalts and other Late Proterozoic volcanics and sandtones. The primarily basaltic finer-grained sediments produce a black sand beach.
ChronostratigraphyLate Proterozoic, Keweenawan
LithostratigraphyNorth Shore Volcanic Group
Geologic provinceMidcontinent Rift
LocationUSA ▹ Minnesota ▹ St. Louis. Near Duluth. Duluth Quadrangle.
PhotographerJoseph Hartman. 2002-02-21.
CollectionJoseph Hartman C08844.
Key wordsNorth Shore Volcanic Group
Tech details513 KB. Outcrop. Kodachrome, TIFF.
GeoDIL number2412