Silicic rock

The project objective is to research the composition and distribution of silicic rock in Iceland and examine various ideas concerning its formation. Emphasis is placed on younger formations. Samples from the IINH Mineral and Rock Collection are used for this research, and new specimens are added to the collection. Major and trace elements in rocks and minerals are analysed, and information is compiled on other analyses of the chemical composition of rocks, mineral composition, and isotope measurements.

Kristján Jónasson 2006. Silicic volcanism in Iceland: Composition and distribution within the active volcanic zones. J. Geodyn. DOI: 10.1016/j.jog.2006.09.004.

Kristján Jónasson 2005. Magmatic evolution of the Heiðarsporður ridge, NE-Iceland. J. Volcanol. Geotherm. Res. 147: 109–124.

Kristján Jónasson 1994. Rhyolite volcanism in the Krafla central volcano, North-East Iceland. Bull. Volcanol. 56: 516–528.

Kristján Jónasson, P.M. Holm and A.K. Pedersen 1992. Petrogenesis of silicic rocks from the Króksfjördur central volcano, NW Iceland. J. Petrol. 33: 1345–1369.

IINH Contact: Kristján Jónasson