0

50

100

150

200

250

0

10

20

30

40

50

60

70

80

90

100

0

10

20

30

40

50

60

70

80

90

100

0

20

40

60

80

100

Grain size in microns

Depth in centimeters

Percent sand

Percent

Sand

Sand Mean

Size

68

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Core Description Key

Sediment Grain Size

Clay Dominated

Silt Dominated

Sand Dominated

C

"Clay"

Clay

comprises

more than

two-thirds of

sediment

M

"Mud"

Near equal

portions silt

and clay with

little sand

CSi

"Clayey-

Silt"

Silt

dominates

with clay

comprising

a significant

fraction

MSa

"Muddy-

Sand"

Near equal

portions

mud and

sand

CSa

"Clayey-

Sand"

Sand

dominates

with clay

comprising a

significant

fraction

G

"Gravel"

Gravel

comprises

more than

two-thirds of

sediment

SiC

"Silty-

Clay"

Clay

dominates

with silt

comprising a

significant

fraction

Si

"Silt"

Silt

comprises

more than

two-thirds

of sediment

SiSa

"Silty-

Sand"

Sand

dominates

with silt

comprising a

significant

fraction

SaC

"Sandy-

Silt"

Clay

dominates

with sand

comprising a

significant

fraction

SaSi

"Sandy-

Silt"

Silt

dominates

with sand

comprising

a significant

fraction