Übersetzung für 'essexite' von Englisch nach Deutsch

essexite

Essexit {m}geol.

• Craigleith is a laccolith made up of essexite which is popular for making curling stones Its component rock is trachyte and Lower Carboniferous in origin.
• The subvolcanic and intrusive rocks of the central Kaiserstuhl are plutonic equivalents of the erupted material (essexite, carbonatite and coarse-granular phonolite).
• It is composed of essexite and syenite, strongly contrasting with the surrounding sedimentary rocks.
• Craigleith is made up of essexite, which is popular for making curling stones.
• Essexite is a form of silica-undersaturated pyroxene gabbro, containing nepheline and orthoclase as essential constituents, though often in small proportions.

• Utilising the IUGS QAPF diagram of Streckeisen (1974) "essexite" is more formally known as nepheline monzodiorite or nepheline monzogabbro depending on the ratio of orthoclase to plagioclase and the abundance of nepheline.