(NM) Northern Michigan Metamorphic Suite -- Michigan
Title
(NM) Northern Michigan Metamorphic Suite -- Michigan
Collection Items
Slate
Show bedding, few carbonate nodules
Basic rock w/ garnets
Satalitic intrusion
Graywacke
Coarse grained facies
Graywacke
includes andalusite-bearing phyllite
Banded iron formation
contains specularite and fine quartz
Banded iron formation
fine grained hematite and chert included
Graywacke
thinly-layered
Basic rock/greenstone and garnets
possibly volcanic
Staurolite schist
includes some sillimanite and occurs in distinct bands
Metagraywacke
country rock