PORPHYRITIC GRANITE
Porphyritic Granite originated from Tampin, Negeri Sembilan, a distinctive igneous rock dating back to the Late Triassic (230 - 200 million years ago). It can be characterised by its texture featuring larger crystals known as phenocrysts embedded within a finer-grained matrix called the groundmass....
Saved in:
| Main Author: | |
|---|---|
| Format: | Instructional Teaching Materials |
| Language: | English |
| Online Access: | http://utpedia.utp.edu.my/id/eprint/30243/1/w.jpg http://utpedia.utp.edu.my/id/eprint/30243/ https://www.youtube.com/watch?v=bTvusqYGauQ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Porphyritic Granite originated from Tampin, Negeri Sembilan, a distinctive igneous rock dating back to the Late Triassic (230 - 200 million years ago). It can be characterised by its texture featuring larger crystals known as phenocrysts embedded within a finer-grained matrix called the groundmass.
"Porphyritic" refers to the texture of the rock. In porphyritic granite, larger crystals, known as phenocrysts, are embedded within a finer-grained matrix called the groundmass. This contrast in grain size is a defining feature of porphyritic rocks. |
|---|