Høifjeldet mellem Vangsmjøsen og Tisleia (Valdres)

Abstract

Forkortet: This region lies in the midst of Southern Norway to the NNW of Oslo. The Valdres valley, shown on the maps, pp.86 and 87 stretches from the Vangsmjøs in the NW the Strandefjord in the SE. The bottom of this valley is, on an average, 400 m above the sea. It forms a furrow in an undulating high plateau 8-900 m above sea. To the SW of the Valley there lie, at a distance of 10 to 12 km, three isolated mountains, about 1500 m high, named Syndinnfjell, Bukonefjell and Grønnsennknipen. Each of these forms a ridge about 10 km long NW to SE. Pictures of the valley are given on pp.47 and 52, and one, taken from the high plateau on p.53. The phyllite or argillaceous mica-schist is dark gray and contains as a rule small lenses of white quartz. To the South, outside of this district, it merges into a less altered clay-slate. The stratification is folded; a dip to the SE is frequent in the bedding as well as in the schistosity which is sometimes independent thereof. The phyllite has been tried as a roofing slate but with no great success, as it is apt to become rusty- coloured and is difficult to obtain quite flat and smooth. Bluish-gray quart- zite which in our literature is usually called blue quartz (blåkvarts) is interstratified in the phyllite.