processes and time

18 and 19 August

Yesterday we went into  Kaitanen’s area to visit some hills in the non-streamlined area. We aimed for a hill with mast – masts are always a good hint that there is a drive-in to a gate and a path up the hill (until we decide to leave the path to head to interesting spots instead of the mast). We had a nice 4h walk. Luckily all of the area is above the tree line and gives a great view on the tors, hills and plateaus of the area. The area shows an abundance of tors, but also destroyed tors. These and plucked areas gave us the impression that glacial preservation was to a lesser degree than expected. Apart from that, we observed and discussed recent processes like frost shattering and frost sorting.

Today we had another drive north, to the Varanger Peninsula, to visit the site of the Neoproterozoic tillites from the other side of the Varanger Fjord. To give one little touristy post, I can report that we found a great little café with a little museum connected to a cultural heritage site, and we got the last waffles of the season there! And great waffles, with cream and jam! We admittedly did not pay too much attention to the values of cultural heritage, as the café was located right upon and beside a great succession with tillites and Cambrian sandstones. The Varanger Peninsula consists of Cambrian cover rocks, with a little Caledonian nappe patch in the NW corner. The burial of the Precambrian basement, the thick Cambrian sediments, the tillite, and the Precambrian basement on the mainland with no Cambrian cover left brings complexity to the great riddle of land uplift, long-term development and the impact of glacial erosion. A lot to think about, a lot to read.

Neighbouring and intermixed landforms as the results of processes of greatly different timescales and duration on the SE coast of the Varanger Peninsula: In the background the succession of Neoproterozoic tilite, smoothened by Quaternary ice movement and corrasion; the circular form represents the present beachline at low tide; the stone line in the foreground is a fossile shoreline, a result of glacio-isostatic land uplift.

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