NAGRA bore, Kaisten, Laufenburg, Aargau, SwitzerlandNAGRA-Bohrung, Kaisten, Laufenburg, Aargau, Schweiz (Suisse; Svizzera)
Several boreholes of the NAGRA revealed zoned reduction coronas with roscoelite and ore minerals. One of these boreholes was near Kaisten. Red bed deposits in the Rotliegendes (Permian) of northern Switzerland were encountered at a depth of around 200 m. At lower depths, fossil-rich triassic dolomites were met. Another reduction zone was encountered in a cleft in a tectonically stressed lamprophyre at a depth of 352 m.
Apart from the minerals listed, the studies revealed also U minerals, Ni-Co arsenides, Cu sulphides and Cu arsenides.
22 entries listed. 20 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
- Stalder, H. A., Wagner, A., Graeser, S. und Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf Verlag, Basel, 579 pp.
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Locality Updated: Challenge deposit, Emerald Lake Hills, San Mateo Co., California, USAFrom Brent Thorne, 7th Dec 2013 23:31:03