|
Type |
distinguished
by range of size: |
landscape
features |
particle
name |
size
inches (") |
in
millimeters = .039"
|
kind
of rock formed:
|
|
<
.00156
|
<
.004
|
Shale
|
Mud
|
|
.00156
- .00248
|
.004
- .063
|
Siltstone
|
Mud
|
|
.00249
-.078
|
.064
-2.00
|
Sandstone
|
|
.078
-.155
|
2.00
- 4.00
|
smooth
|
angular
|
Conglomerate
|
Breccia
|
|
.156 - 2.5
|
|
|
2.51
-9.98
|
64.01
- 256.0
|
|
>
10 (9.98)
|
>
256
|
artifacts |
comparative |
mass and size differ
|
Geological
formations
|
Stanley
Chernicoff, Geology: An introduction to Physical Geology,
(Boston: Houghton Mifflin, 1999), p. 161.
|
|