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Geology, Palaeontology & Archaeology / How to genetically classify a weathering mineral?
« on: 13/11/2021 07:36:35 »
I am programming a mineral guide for geology students for Android devices. It has sheets where I put a picture, name, group, formula, environment of formation and physical-chemical properties of each mineral.
I am classifying the environments of formation from:
-Wenk, H. R., & Bulakh, A. (2016). Minerals: their constitution and origin. Cambridge University Press.
That proposes this classification:
I am following this classification. My concern is how to classify minerals as chrysotile, that forms as a weathering result of mafic rocks.
I guess it should be exogenic. It does look that this environment is not supergenic, so I am wondering if I can classify it as sedimentary, as weathering is the first part of sedimentary cycle. So the field would be "Sedimentary: weathering of mafic rocks."
Or I should add a group in the list to include alteration or weathering environment?
I am classifying the environments of formation from:
-Wenk, H. R., & Bulakh, A. (2016). Minerals: their constitution and origin. Cambridge University Press.
That proposes this classification:
- Endogenic: Magmatic, metamorphic.
- Exogenic: Sedimentary, supergenic.
- Endogenic/Exogenic: Hydrothermal.
I am following this classification. My concern is how to classify minerals as chrysotile, that forms as a weathering result of mafic rocks.
I guess it should be exogenic. It does look that this environment is not supergenic, so I am wondering if I can classify it as sedimentary, as weathering is the first part of sedimentary cycle. So the field would be "Sedimentary: weathering of mafic rocks."
Or I should add a group in the list to include alteration or weathering environment?