Calcite (Inventory)/Folia

From LagWiki

The Folia field of the Calcite section should be used to record any observation of folia.

Folia are horizontal growths of calcite usually occurring on overhanging walls. They appear much like inverted rimstone dams.

Folia are concentrated around pool surfaces and are strongly associated with calcite rafts. They are believed to form when CO₂ bubbles strike the ceiling or an overhanging wall and cause calcite to precipitate from the water. They may also form from frequent changes in water level leaving behind horizontal deposits.

Folia ribs project from the wall between 1 and 5 cm with a thickness of each rib about 0.5-1 cm. Each rib is usually spaced between 1 and 5 cm apart.

Folia have also been observed in mud.

Gallery

Folia

See also

• Calcite raft
• Rimstone dam

References

• Hill, Carol; Paolo Forti (1997) Cave Minerals of the World (Second Edition ed.) National Speleological Society pp 73-74 ISBN: 1-879961-07-5
• Palmer, Arthur N. (2007) Cave Geology CAVE BOOKS, Dayton, OH p 277 ISBN-13: 978-0-939748-66-2, ISBN-10: 0-939748-66-5

Calcite (Inventory)/Folia is a part of the cave inventory project.