- https://data.geoscience.earth/ncl
- INSPIRE
- LithologyValue
- _0628bd25-d242-4db1-94ff-c13925f95618
Entry: andesite
URI: http://inspire.ec.europa.eu/codelist/LithologyValue/andesite
Fine-grained igneous rock with less than 20 percent quartz and less than 10 percent feldspathoid minerals in the QAPF fraction, in which the ratio of plagioclase to total feldspar is greater 0.65. Includes rocks defined modally in QAPF fields 9 and 10 or chemically in TAS field O2 as andesite. Basalt and andesite, which share the same QAPF fields, are distinguished chemically based on silica content, with basalt defined to contain less than 52 weight percent silica. If chemical data are not available, the color index is used to distinguish the categories, with basalt defined to contain greater than 35 percent mafic minerals by volume or greater than 40 percent mafic minerals by weight. Typically consists of plagioclase (frequently zoned from labradorite to oligoclase), pyroxene, hornblende and/or biotite. Fine grained equivalent of dioritic rock.
Core metadata
| is a | Concept |
| submitted by | Sophie Chaduteau |
| accepted on | 16 Jul 2026 11:53:11.073 |
Download formats available
| RDF ttl | plain | with metadata |
| RDF/XML | plain | with metadata |
| JSON-LD | plain | with metadata |
| CSV | plain | with metadata |
| Export all | export |
All metadata properties
| date accepted |
16 Jul 2026 11:53:11.073
|
||||
| date submitted |
16 Jul 2026 09:17:50.320
|
||||
| definition |
|
||||
| item class |
Concept
|
||||
| label |
andesite
|
||||
| notation |
0628bd25-d242-4db1-94ff-c13925f95618
|
||||
| register |
lithology value
|
||||
| status |
status experimental
|
||||
| submitter |
|
||||
| type |
register item
|
||||
| version info |
2
|
Definition
| broader |
fine grained igneous rock
|
| definition |
Fine-grained igneous rock with less than 20 percent quartz and less than 10 percent feldspathoid minerals in the QAPF fraction, in which the ratio of plagioclase to total feldspar is greater 0.65. Includes rocks defined modally in QAPF fields 9 and 10 or chemically in TAS field O2 as andesite. Basalt and andesite, which share the same QAPF fields, are distinguished chemically based on silica content, with basalt defined to contain less than 52 weight percent silica. If chemical data are not available, the color index is used to distinguish the categories, with basalt defined to contain greater than 35 percent mafic minerals by volume or greater than 40 percent mafic minerals by weight. Typically consists of plagioclase (frequently zoned from labradorite to oligoclase), pyroxene, hornblende and/or biotite. Fine grained equivalent of dioritic rock.
|
| narrower |
boninite
|
| notation |
andesite
|
| pref label |
andesite
|
| type |
Concept
|