(NM) Northern Michigan Metamorphic Suite -- Michigan
Title
(NM) Northern Michigan Metamorphic Suite -- Michigan
Collection Items
Banded ironstone
occurs in chlorite zone
Basic Dike (chlorite facies)
with relict pyroxene and plagioclase
Metagraywacke
country rock
Staurolite schist
includes some sillimanite and occurs in distinct bands
Basic rock/greenstone and garnets
possibly volcanic
Graywacke
thinly-layered
Banded iron formation
fine grained hematite and chert included
Banded iron formation
contains specularite and fine quartz
Graywacke
includes andalusite-bearing phyllite
Graywacke
Coarse grained facies
Basic rock w/ garnets
Satalitic intrusion