Studies on water movements and sediments in Southern Lake Michigan : part 1[-3] ... / by John C. Ayers.

Reference Stations

Ref.
Station Depth
No. Location (feet) Description
I 5.7 miles off- 48 Medium sand, few granules
shore. 3.0 (clean)
miles, 117~ from
Four Mile Crib,
Chicago
II 19.3 miles off- 173 3/4" buff-gray slightlyshore. 17.1 silty fine-to-very-fine
miles, 55~ from sand over 1-1/2" buff-gray
Four Mile Crib, silty fine-very-fine sand
Chicago over brownish-buff clayey
silty fine-very-fine sand
with small pebbles. (all
layers contain a few small
shells)
Mid-way between 1/4"-1/2" gritless gray
II and III silt over buff sandy clay
III 30 miles off- (340+) Red clay. (Core sample 90
shore. 29.5 miles, cm long; viewed through
292~ from Benton plastic liner, appears
Harbor pierhead fine-grained and uniform
(D. R. position) for entire length)
Mid-way between 1/4" gray sandy silt over
III and IV 1/8" buff silty fine sand
over soft gray clay
IV 34 miles off- (470+) Gray clay. (Core sample 90
shore. 34 miles, cm long; viewed through
292~ from South plastic liner, shows color
Haven pierhead bands of light gray and
(D. R. position) black, entire length)
^ -,,.,,,,.,.,.,.. ww.,................................:...........

33A