occurrences in metagabbro sills

outcrops of asbestos in Marinette county, MI

Geologic information

Name of siteoccurrences in metagabbro sills
Developmentoutcrops
StateMI
CountyMarinette
Geographic location:-88, 45.775
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Fibrous mineralThe actinolite may be dense and more or less confined to sites of previous augite, or fibrous and matted and interlaced with adjacent alteration minerals"" (Bayley and others, 1966, p. 68).
Associated mineralsplagioclase
albite
saussurite
labradorite
andesine
quartz
hornblende
augite
chlorite
calcite
epidote
magnetite
Host rock typesmetagabbro
Geologic map unit-88, 45.775
Nearby scientific dataFind additional scientific data near this location

Reference information

Bayley, R.W., Dutton, C.E., and Lamey, C.A., 1966, Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin: U.S. Geological Survey Professional Paper 513, 96 p., 4 plates.
[http://pubs.er.usgs.gov/publication/pp513]