Skip to main content
RI-41 Bottom Sediments and Organic Geochemical Residues of Some Minnesota Lakes
Swain, F.M. (Minnesota Geological Survey, 1992)
 

Title 
RI-41 Bottom Sediments and Organic Geochemical Residues of Some Minnesota Lakes

Author(s)

Issue Date
1992

Publisher
Minnesota Geological Survey

Type
Report

Abstract
Holocene lake sediments of Minnesota are represented by six facies: I) northeastern-allogenic littoral sand and gravel, and profundal clay and copropel, in Precambrian crystalline rocks, with low to high total carbohydrates, high and variable amino acids, low to moderate hydrocarbons, and low to high pigments; II) northwestern-mixed allogenic clastics, and authigenic copropel and marl, in calcareous glacial drift and Pleistocene lake beds, with moderate carbohydrates, low amino acids, and stratigraphically variable pigments; III) north-central-authigenic marl, copropel, and allogenic sediments in thick calcareous glacial drift, with moderate carbohydrates, low amino acids, and stratigraphically variable pigments; N) east-central-authigenic copropel, marl, and allogenic clastics in calcareous and noncalcareous glacial drift, with high carbohydrates and amino acids, high hydrocarbons and polar lipids, high pigments, all stratigraphically variable; V) west-central and southwestern-allogenic silt, marl, and sapropel in calcareous glacial drift and gypsiferous Cretaceous shale, with high carbohydrates and amino acids, stratigraphically variable, high aromatic hydrocarbons; and VI) southeastern-allogenic fine clastics and copropel in Paleozoic clastic and carbonate rock and pre-Wisconsin drift, with known organic residues similar to those in Facies IV.

Appears in Collection(s)

Other Identifier(s)
issn: 0076-9177

Series/Report Number
RI
41

Series/Report Number
RI
41

Suggested Citation
Swain, F.M.. (1992). RI-41 Bottom Sediments and Organic Geochemical Residues of Some Minnesota Lakes. Minnesota Geological Survey. Retrieved from the University of Minnesota Digital Conservancy, http://purl.umn.edu/60789.


Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.