The CEED Oslorift excursion and summer party
Wednesday, 20 June
09:00: The bus leaves from outside the ZEB building. It will take us
northwest of Oslo over Sollihøgda to Sundvollen.
Stop 1: Brief stop for a view up to the Kolsås mesa stucture, an
outlier of the Krokskogen lava plateau.
Stop 2a: Skaret, north of Sollihøgda: rhomb-porphyry (RP) lavas
and sediments. Learn to map the RPs in 2 min before mapping them in 20-25 min! We may walk down to:
Stop 2b: Further down in the RP-lava stratigraphy
Stop 3: Enigmatic and unique features of the lowermost RP1-lava
Stop 4: On the drive up Dronningveien: Inititial-rift sediments in the
Asker Group, the B1-basalt and more RP1-lava.
Lunch at Kleivstua with views to Ringerike and to the Krokkleiva-Kjaglidalen transfer fault. NOTE: Bring your own lunch, we get coffee and tea at Kleivstua
Stop 5: The Rytteråker peninsula in Tyrifjorden with
Silurian sandstone (Sælabonn fm) and limestone with fossilised coral reefs (Rytteråker fm). Easy walk around the peninsula.
NOTE that this is a private area AND protected type locality, so no hammering, and follow the instructions on the signs.
Stop 6: Rhomb-porphyry dyke at Burudåsen, north of Sundvollen
16:00 - 17:00 (Weather dependent): Arrival at Sundvollen hotell.
19:00 Welcome drink and dinner at the hotel
Thursday, 21 June
10:00: The bus leaves from Sundvollen hotel. The trip back to Blindern takes 45 to 60 minutes.