| Name | Porkuni quarry |
| Type | outcrop |
| Country | Estonia |
| Parish | Tamsalu |
| Settlement | Porkuni |
| Coordinates | 59.187346, 26.187433 |
| Coordinate system | EPSG:3301 |
| X | 6563023 |
| Y | 625014 |
| Coordinate precision | 10-100 m |
| Coord. method | GPS |
| Coord. agent | Hints, Olle |
| Location remarks | Asub endise Porkuni mõisa metsapargi loodeservas Valgejõe oru läänenõlval Tamsalu-Kullenga mnt ääres ca 300 m uuest Valgejõe sillast. Porkuni kihistu (FII; O3pk) holostratotüüp (Atla alamladestik, Hirnanti lade, Ordoviitsiumi ladestu); |
| Strat. top | Porkuni Stage |
| Strat. base | Pirgu Stage |
| Remarks | Vana ulatuslik paemurd. Porkuni lademe stratotüüp; OH: kust pärineb vahepealne nimi Porkuni II murd? |
| Date changed | 2024-02-28 |
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