Roadcut on highway E22 north of Edsbruck, about 3 km north of the exit to Hulta. Parking on a turnout. Time
should be taken in observing the rocks on both sides of the road.
This excellent outcrop along highway E22 shows so-called veined amphibolitic gneisses in the metavolcanic terrain
northeast of the LLDZ. These former volcanic sediments are considered to belong to the southern part of the
Svecofennian Domain. The amphibolitic matrix is dark in color, dense and fine grained, and is interbedded
with steeply dipping white vertical bands of varying thickness (cf. fig. 4.1a-c). The white bands show minimum-melt
composition of quartz, K-feldspar and plagioclase (Beunk 1996). Additionally several pegmatite dikes intruded
into these rocks (cf. fig. 4.1d). In his excursion guide Beunk (1996) noticed a NW-SE striking foliation which
probably originated from the D2 deformation.
Beunk, F.F., 1996. Geology of the Loftahammar Area: Introduction and Excursion Guide, EUROBRIDGE 1996 Workshop,
Oskarshamn, Sweden: Southern Baltic Shield - correlation of shallow and deep structures, 1- 44.
General information on the development of the LLDZ:
Beunk, F.F. & Page, L.M., 2001. Structural evolution of the accretional continental margin of the Paleoproterozoic
Svecofennian orogen in southern Sweden, Tectonophysics, 339, 67-92.