Search
Menu
Home
Sources
About
Contacts
Freda Sandstone
The
Freda
Sandstone
is a
geologic formation
in
Michigan
. It
dates
back to the
Proterozoic
. Lithologically, the Freda Sandstone is a
lithic
, red-brown,
cyclic sequence
of
sandstones
,
mudstones
and
shales
.