Browsing ELibrary by Subject "zoning"

Browsing ELibrary by Subject "zoning"

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  • STRONTIUM-APATITE: NEW OCCURRENCES, AND THE EXTENT OF SR-FOR-CA SUBSTITUTION IN APATITE-GROUP MINERALS 
    Chakhmouradian A.R.; Reguir E.P.; Mitchell R.H. (2002)
    The paragenesis and compositional variation of strontium-apatite from three new localities are characterized. At Lovozero, in the Kola Peninsula, Russia, strontium-apatite forms elongate crystals and thin reaction-induced ...
  • THE VENDIAN OF THE BAIKAL-PATOM UPLAND, SIBERIA 
    Khomentovsky V.V.; Postnikov A.A.; Karlova G.A.; Kochnev B.B.; Yakshin M.S.; Ponomarchuk V.A. (2004)
    A large gap is documented in the Patom Upland, at the base of the Zherba Formation. The closely connected Tirbes Formation is now considered as its completing member. The Tinnaya Formation is separated from the Zherba and ...