|
gptkbp:instanceOf
|
gptkb:geological_formation
|
|
gptkbp:characterizedBy
|
steep walls
circular shape
deep underwater sinkholes
|
|
gptkbp:depthRange
|
up to 300 meters
|
|
gptkbp:ecosystem
|
anoxic layers
unique marine life
|
|
gptkbp:feature
|
stalactites and stalagmites
stratified water layers
fossil records
high hydrogen sulfide concentration
limited light penetration
vertical cave system
|
|
gptkbp:formedBy
|
limestone dissolution
collapse of cave systems
|
|
gptkbp:foundIn
|
gptkb:Australia
gptkb:Bahamas
gptkb:Belize
gptkb:China
gptkb:Red_Sea
|
|
gptkbp:importantFor
|
gptkb:archaeological_site
paleoclimate records
biodiversity hotspots
|
|
gptkbp:notableExample
|
gptkb:Great_Blue_Hole
gptkb:Dean's_Blue_Hole
gptkb:Dragon_Hole
|
|
gptkbp:popularFor
|
gptkb:scientific_research
scuba diving
|
|
gptkbp:riskFactor
|
dangerous for divers
|
|
gptkbp:studiedBy
|
biologists
marine geologists
|
|
gptkbp:waterSource
|
brackish water
freshwater
saltwater
|
|
gptkbp:bfsParent
|
gptkb:Vanuatu_Islands
|
|
gptkbp:bfsLayer
|
5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Blue Holes
|