Program, Abstracts, and Guidebooks - University of Minnesota Duluth

—79—
FIELD TRIP
The field trip has been designed as a one—day excursion
starting from Geraldton, where some of the oldest rocks of the
belt can be viewed, and finishing south of Beardmore at an
exposure of the younger, Sibley Group rocks.,
A cross—section of the belt, made by traversing north on
secondary Highway 801 in Walters Township (near Jellicoe), has
been chosen to show the variety of metasedimentary and meta—
volcanic rocks types. Although some of the exposures along the
highway are relatively small, larger outcrops occur along strike
and, in &ome cases, can be reached by means of trails and/or boat
The tour continues west to Beardinore, the Leitch Gold Mine
area, and Lake Nipigon to examine Keweenawan diabase exposures,
folded iron—rich metasediments, and vplcanic structures
Emphasis has been placed on the viewing of megascopic features
and field relationships.
ROUTE
The Road Log has been set—up to enable use by others at a
I
later date.
Location of all Stops are shown on map in Figure 1. The
relative position of some Stops has also been located on the
cross—section in Figure 2.
Time limitations may not allow viewing ofall Stops listed.
Some stops are intended for viewing frrom the bus only.
Conservation of Outcrop
Several groups will be making this tour in conjunction with
the 1970 Lake Superior Institute, and possibly on an individual
basis at a later date. Care should be taken to preserve the more
delicate features when collecting specimens, making hardness tests,
etc.