- https://data.geoscience.earth/ncl
- INSPIRE
- LithologyValue
- _c94cea6b-3268-4039-a2e7-6a29d25f7ee9
experimental
Entry: chalk
URI: http://inspire.ec.europa.eu/codelist/LithologyValue/chalk
A generally soft, white, very fine-grained, extremely pure, porous limestone. It forms under marine conditions from the gradual accumulation of skeletal elements from minute planktonic green algae (cocoliths), associated with varying proportions of larger microscopic fragments of bivalves, foraminifera and ostracods. It is common to find flint and chert nodules embedded in chalk.
Core metadata
| is a | Concept |
| submitted by | Sophie Chaduteau |
| accepted on | 16 Jul 2026 11:53:11.430 |
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| RDF ttl | plain | with metadata |
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All metadata properties
| date accepted |
16 Jul 2026 11:53:11.430
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| date submitted |
16 Jul 2026 09:17:50.221
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| definition |
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| item class |
Concept
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| label |
chalk
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| notation |
c94cea6b-3268-4039-a2e7-6a29d25f7ee9
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| register |
lithology value
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| status |
status experimental
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| submitter |
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| type |
register item
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| version info |
2
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Definition
| broader |
limestone
|
| definition |
A generally soft, white, very fine-grained, extremely pure, porous limestone. It forms under marine conditions from the gradual accumulation of skeletal elements from minute planktonic green algae (cocoliths), associated with varying proportions of larger microscopic fragments of bivalves, foraminifera and ostracods. It is common to find flint and chert nodules embedded in chalk.
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| notation |
chalk
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| pref label |
chalk
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| type |
Concept
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