- https://data.geoscience.earth/ncl
- INSPIRE
- LithologyValue
- _22dd7ddd-1e6d-4ddd-a19d-f7e3aacc1445
experimental
Entry: syenitoid
URI: http://inspire.ec.europa.eu/codelist/LithologyValue/syenitoid
Phaneritic crystalline igneous rock with M less than 90, consisting mainly of alkali feldspar and plagioclase; minor quartz or nepheline may be present, along with pyroxene, amphibole or biotite. Ratio of plagioclase to total feldspar is less than 0.65, quartz forms less than 20 percent of QAPF fraction, and feldspathoid minerals form less than 10 percent of QAPF fraction. Includes rocks classified in QAPF fields 6, 7 and 8 and their subdivisions.
Core metadata
| is a | Concept |
| submitted by | Sophie Chaduteau |
| accepted on | 16 Jul 2026 11:53:11.085 |
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All metadata properties
| date accepted |
16 Jul 2026 11:53:11.085
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| date submitted |
16 Jul 2026 09:17:50.416
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| definition |
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| item class |
Concept
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| label |
syenitoid
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| notation |
22dd7ddd-1e6d-4ddd-a19d-f7e3aacc1445
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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 |
phaneritic igneous rock
|
| definition |
Phaneritic crystalline igneous rock with M less than 90, consisting mainly of alkali feldspar and plagioclase; minor quartz or nepheline may be present, along with pyroxene, amphibole or biotite. Ratio of plagioclase to total feldspar is less than 0.65, quartz forms less than 20 percent of QAPF fraction, and feldspathoid minerals form less than 10 percent of QAPF fraction. Includes rocks classified in QAPF fields 6, 7 and 8 and their subdivisions.
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| narrower |
monzonitic rock
| syenitic rock
| alkali feldspar syenitic rock
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| notation |
syenitoid
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| pref label |
syenitoid
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| type |
Concept
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