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

Line XX; bearing 90~ from
to buoy, 8 miles

W. shore near Glencoe, Illinois,
then 85~ from buoy

Miles
Sample from Depth
No. Shore (feet) Descriptions -

1
2
3

4
5
6
7*
8

2
3
4
5
6
7
8
9

40 Gravel
47 Gravel
50 1 granule in 3 trials
55 Gravel
58 1 pebble in 2 trials
66 Gravel (including angular block 20 cm
long, limestone and chert)
45 Few grains coarse sand and gravel

9

10
11
12
13
14

10
12
14
16

104
106
140
163
180
213
265

1st trial:
2nd trial:

few sand grains
coarse sand, poorly sorted

Coarse sand and fine gravel
Grayish-buff silty fine sand
Grayish-buff slightly silty medium
sand
Grayish-buff silty medium-fine sand,
very few small pebbles
Reddish-brown clayey silty sand,
few small pebbles
1" brownish-gray sandy silty clay
over sandy silty clay mottled
reddish-brown and brownish-gray
1/4" sandy gray silt over reddishbrown soft slightly-sandy clay

20

15

25

*100 yds. N. of buoy

20A