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Felsic volcanics
Submitted by Andrew du Toit on Mon, 02/12/2019 - 13:40 | Last updated: Mon, 02/12/2019 - 13:40
Grid Ref (WGS84 Lat/Long in decimal degrees)
-17.356221, 31.559409
Location:
Turn east off the Shamva Road onto Rutherdale Estate
Stratigraphy:
Shamvaian Supergroup
Description:
Many of extrusive rocks within the Shamvaian are porphyritic and have been interpreted as crystal tuffs with plagioclase phenocrysts, but on fresh surfaces these are difficult to see. The rocks range in composition from rhyolite to dacite and some may be intrusive.
Contributed:
02/12/2019
Updated:
02/12/2019
Attachments:
