Classification and Nomenclature of Volcanic Rocks, Lamprophyres
, Carbonatites and Melilite Rocks.
1999): Mafic precursors, peraluminous granitoids, and late lamprophyres
in the Avila batholith, A model for the generation of Variscan batholiths in Iberia.
Most of the ore bodies that make up the deposit are hosted by Upper Carboniferous to Middle Triassic carbonates, with igneous units in the area that is dominated by granodiorites, quartz diorites, quartz porphyries, and lamprophyres
Mafic precursors, peraluminous granitoids, and late lamprophyres
in the Avila batholith: A model for the generation of Variscan batholiths in Iberia.
This is a very important and exciting piece of the puzzle at Treasure Island as lamprophyres
are an intrusive rock that are commonly associated with lode gold deposits in Archaean terranes around the world.
To establish definitively the age of the Antetezambato lamprophyres
and thereby the age of the formation of the andradite crystals, the author is currently conducting isotope-geochronological analyses on selected specimens, the results of which should be available soon.
The Mesozoic mafic dykes of eastern Massachusetts consist of tholeiitic olivine-dolerite, transitional-alkalic dolerite, nenormative alkaline dolerite, and at least three identified alkaline lamprophyres
More leucocratic lamprophyres
occur as veins within the thick basaltic sills and are made of abundant kaersutite and minor clinopyroxene phenocrysts in a groundmass that consists of alkaline feldspar and devitrified glass.
Streckeisen A (1979) Classification and nomenclature of volcanic rocks, lamprophyres
, carbionatites and mellitic rocks: recommendations and suggestions of the IUGS Subcommision on the Systematics of igneous Rocks.
1979, Classification and nomenclature of volcanic rocks, lamprophyres
, carbonatites, and melilitic rocks: Recommendations and suggestions of the IUGS Subcommission on the Systematics of Igneous Rocks: Geology v.
The Discover Abitibi Initiative (DAI) recently released the results of a lamprophyre
study, designed to determine the diamond bearing potential of lamprophyres
in Timmins, Kirkland Lake and Timiskaming areas.
Moreover, it strikes parallel to numerous smaller dykes of lamprophyres