A Geoscience Digital Image Library

TitleView west of red granite and basalt quarry of the North Shore Volcanic Group, Duluth, St. Louis County, Minnesota
DescriptionView west of a quarry in the North Shore Volcanic Group including red granite and basalt, Duluth, St. Louis County, Minnesota. The red granite has intruded the basalt resulting in dikes and basaltic xenoliths. Quarry material has been used for construction in the Duluth area.
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 C08862.
Key wordsrip-rap quarry, xenoliths
Tech details534 KB. Outcrop. Kodachrome, TIFF.
GeoDIL number2418