Latite

The latite is a volcanic igneous, which was after the central Italian region of Lazio, one of his main areas of distribution, named.

  • 3.1 Notes and references

Description

In latite is the volcanic equivalent of monzonite. He is related to the andesites. The main constituents are plagioclase, sanidine and pyroxene. In addition, it still contains augite, hornblende and biotite. In a fine-grained to dense matrix contains phenocrysts of plagioclase, sanidine and pyroxene. The image of the matrix is trachytisch to felsic with equally large, unregulated grains.

The distinction among the andesites is done by the higher levels of K-feldspar and biotite to Latits. In special cases, with finely crystalline or glassy structure, a distinction is possible only with technical analysis methods.

Varieties are Absarokit ( olivine Latitbasalt ) and Shoshonit ( olivinhaltiger Augitlatit ). With their descriptions Joseph Paxson Iddings dealt.

History

The rock was first described scientifically in 1898 by the American geologist Frederick Leslie Ransome, he took it in Italian occurrence relation.

Occurrence and use

The rock comes out in Lazio on Stromboli, in the Massif Central ( Monts Dore ), and in Germany during the Seven Mountains before ( Stenzelberg, Wolkenburg, Hirschberg ). It can be used as building material. Numerous buildings were built to it, among which was built with latite from Stenzelberg, today only a ruin existing monastery Heisterbach near Bonn. The latite - occurrence in the Palatinate within the county town of Kusel were formerly also called Kuselit.

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