Information Key
Traits Key
-
- 10 - 100
Traits
Traits are indicated by a series of boxes as per the example left.
-
- 10 - 100
Selected Traits
Traits that are applicable to the current genera (ie: select traits) are emphasised and are presented with a dark black border. See example left.
-
- 10 - 100
Estimated Traits
Where there is insufficient information to assess a particular relevant trait, we have estimated the value from information for related genera. These values are show with a dashed/dotted border to indicate an uncertainty in the value shown for a particular genus. See example left
Folk Classification Key
Folk classification used to classify sediments. The classification C has been applied to cobble habitats. Based loosely on the classification of R.L. Folk, 1954. J.Geol., 62, pp344-359.

M | Mud |
---|---|
sM | Sandy |
Mud S | Sand |
mS | Muddy Sand |
gM | Gravelly Mud |
gmS | Gravelly Muddy Sand |
gS | Gravelly Sand |
mG | Muddy Gravel |
msG | Muddy Sandy Gravel |
sG | Sandy Gravel |
G | Gravel |
C | Cobbles |