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A Geoscience Digital Image Library

2497.jpg
TitleSiderite concretions in metamorphic graywacke of the Thomson Formation, Carlton County, Minnesota
DescriptionSiderite concretions in metamorphic graywacke of the Thomson Formation, Carlton County, Minnesota.
ChronostratigraphyProtoerozic
LithostratigraphyThomson Formation
Geologic provinceMidcontinent Rift
LocationUSA ▹ Minnesota ▹ Carlton. Near Thomson. Thomson Dam.
PhotographerJoseph Hartman. 1985.
CollectionJoseph Hartman P05596.
Key wordssiderite, concretion, Thomson Formation,
Tech details1.21 MB. Outcrop. Kodachrome, TIFF.
GeoDIL number2497
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