Corrosion residue (Inventory)

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[[File:Cr yellow and red.jpg|thumb|Corrosion residues. Most of the corrosion residue in this photo is yellow. The darker residue is red.]]
 
'''Corrosion residues''' are relatively insoluable minerals which were once part of the bedrock. They were left behind and concentrated when the bedrock was dissolved. On the ''CCNP Cave Inventory Form'', the [[Recorder (Inventory)|recorder]] is asked only to distinguish them by color. There are three color categories on the form: red, brown and yellow. They can usually be found on the floor but could appear in cracks or [[vug]]s or on shelves and ledges. They could even appear as a type of crust or coating.
'''Corrosion residues''' are relatively insoluable minerals which were once part of the bedrock. They were left behind and concentrated when the bedrock was dissolved. On the ''CCNP Cave Inventory Form'', the [[Recorder (Inventory)|recorder]] is asked only to distinguish them by color. There are three color categories on the form: red, brown and yellow. They can usually be found on the floor but could appear in cracks or [[vug]]s or on shelves and ledges. They could even appear as a type of crust or coating.

Revision as of 02:06, 25 April 2011

Corrosion residues are relatively insoluable minerals which were once part of the bedrock. They were left behind and concentrated when the bedrock was dissolved. On the CCNP Cave Inventory Form, the recorder is asked only to distinguish them by color. There are three color categories on the form: red, brown and yellow. They can usually be found on the floor but could appear in cracks or vugs or on shelves and ledges. They could even appear as a type of crust or coating.

The CCNP Cave Inventory Form asks the recorder to include the thickness if possible. An estimate of how thick the accumulation is should be included next to the station.

Contents

Red CR

Red corrosion residue

The Red CR field is used to record stations where red corrosion residue is found. The red is usually a rusty red color. The color often comes from iron oxides and may be altered by iron-oxidizing bacteria.

See also

References


Corrosion residue (Inventory) is a part of the cave inventory project.

Brown CR

Brown corrosion residue

The Brown CR field is used to record stations where brown corrosion residue is found. The brown is usually a dark brown or even black. Manganese oxides often contribute these dark colors.

See also

References

Brown CR, Corrosion residue


Corrosion residue (Inventory) is a part of the cave inventory project.

Yellow CR

Corrosion residues. Most of the corrosion residue in this photo is yellow. The darker residue is red.

The Yellow CR field is used to record stations where yellow corrosion residue is found. The yellow is usually a kind of dirty yellow color.

See also

References


Corrosion residue (Inventory) is a part of the cave inventory project.

Example

Corrosion Residue

Red CR: GG39 (thin film)
Brown CR: GG40 (4 inches)
Yellow CR: GG37 (3 cm), 38 (2.5 cm)

See also


Corrosion residue (Inventory) is a part of the cave inventory project.
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