Information om | Engelska ordet LAMPROPHYRES

Exempel på hur man kan använda LAMPROPHYRES i en mening

• Cenozoic examples include magnesian rocks in Mexico and South America, and young ultramafic lamprophyres from Gympie in Australia with 18.
• Pegmatites of similar foyaitic composition are seen within the mass at two locations and an associated dyke swarm of lamprophyres and picrites extends some 3 km from the mountain.
• These separate diapirs created the Bunbury Basalt, the Southern Kerguelen Plateau, the Rajmahal Traps/Indian lamprophyres, Antarctic lamprophyres, and the Central Kerguelen Plateau/Broken Ridge.
• Other rare rock types found in a few locations in the Navajo volcanic field include monchiquites (sodium-rich lamprophyres), olivine melilites, and katungite, the latter having a silica content as low as 33.

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