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RockClass
CIPW-norm calculation
Create Streckeisen diagrams directly from QAPF-data
Using this app, Streckeisen diagrams can now be created directly without having to calculate the CIPW norm first. Your QAPF data will be automatically normalized to 100 and you can directly download the diagram as a png file.
Enter your data for quartz, alkali feldspar, plagioclase and the foids (QAPF) below:
Sample 1 ⬤︎
Normalized
Sample 2 ⬤
Normalized
Sample 3 ⬤
Normalized
Sample 4 ⬤
Normalized
Sample 5 ⬤︎
Normalized
Options
My sample is a ...
Explanations
|
Q |
The quartz content in wt% of the norm. |
|
A |
The orthoclase content in wt% of the norm. |
|
P |
The plagioclase (albite and anorthite) content in wt% of the norm. |
|
F |
The content of nepheline and leucite in wt% of the norm. |
Index |
Volcanic rocks |
Plutonic rocks |
|---|---|---|
|
1 |
Quartz Alkali-Feldspar Rhyolite |
Quartzolite |
|
2 |
Rhyolite |
Quartz-Rich Granitoid |
|
3 |
Dacite |
Alkali-Feldspar Granite |
|
3a |
Plagidacite (Quartz-Andesite) |
— |
|
4 |
Quartz-Bearing Alkali-Feldspar Trachyte |
Syeno-Granite |
|
5 |
Quartz-Trachyte |
Monzo-Granite |
|
6 |
Quartz-Latite |
Granodiorite |
|
7 |
Basalt, Andesite |
Tonalite |
|
7a |
Quartz-Bearing Latite-Andesite, Quartz-Bearing Latite-Basalt |
— |
|
7b |
Andesite, Quartz-Basalt |
— |
|
7c |
Latite-Andesit, Latite-Basalt |
— |
|
7d |
Andesite, Basalt |
— |
|
7e |
Foid-Bearing Latite-Andesit, Foid-Bearing Latite-Basalt |
— |
|
7f |
Foid-Bearing Andesite, Foid-Bearing Basalt |
— |
|
8 |
Alkali-Feldspar Trachyte |
Quartz-Bearing Alkali-Feldspar Syenite |
|
9 |
Trachyte |
Quartz-Syenite |
|
10 |
Latite |
Quartz-Monzonite |
|
11 |
Foid-Bearing Alkali-Feldspar Trachyte |
Quartz-Monzodiorite, Quartz-Monzogabbro |
|
12 |
Foid-Bearing Trachyte |
Quartz-Diorite, Quartz-Gabbro, Quartz-Anorthosite |
|
13 |
Foid-Bearing Latite |
Alkali-Feldspar Syenite |
|
14 |
Phonolite |
Syenite |
|
15 |
Tephritic Phonolite |
Monzonite |
|
16 |
Phonolitic Basanite (Olivine > 10%), phonolitic Tephrite (ol < 10%) |
Monzodiorite, Monzogabbro |
|
17 |
Basanite (Olivine > 10%), Tephrite (ol < 10%) |
Diorite, Gabbro, Anorthosite |
|
18 |
Phonolitic Foidite |
Foid-Bearing Alkali-Feldspar Syenite |
|
19 |
Tephritic Foidite |
Foid-Bearing Syenite |
|
20 |
Foidite |
Foid-Bearing Monzonite |
|
21 |
— |
Foid-Bearing Monzodiorite, Foid-Bearing Monzogabbro |
|
22 |
— |
Foid-Bearing Diorite / Gabbro / Anorthosite |
|
23 |
— |
Foid Syenite |
|
24 |
— |
Foid Monzosyenite |
|
25 |
— |
Foid Monzodiorite, Foid Monzogabbro |
|
26 |
— |
Foid Diorite, Foid Gabbro |
|
27 |
— |
Foidolite |