metasomatic


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Related to metasomatic: Altered igneous rock

metasomatic

[¦med·ə·sō′mad·ik]
(petrology)
Pertaining to the process or the result of metasomatism.
References in periodicals archive ?
These examples state that quartz dissolution creates space for new metasomatic alteration and increases the potential for rock alteration.
of major and trace elements in mantle metasomatic fluids: Experimental constraints, in Menzies, M.
The metasomatic process allowed the preservation of much of the original structure of the sedimentary rock, and even fossils have been replaced Locally by the fine-grained skarn minerals.
Regional metasomatic dolomitization associated with tectonic disturbances in Lower Paleozoic of the Northern Baltic region.
Re-Os ages for Archean molybdenite and pyrite, Kuittila-Kivisuo, Finland, and Proterozoic molybdenite, Kabeliai, Lithuania: testing the chronometer in a metamorphic and metasomatic setting // Mineral.
Most of them are probably of metasomatic or anatectic origin (S-type granites; Niin 1997).
We believe the most likely cause of this alteration is the heat and/or metasomatic fluid associated with the final major phase of Mesoproterozoic igneous activity involved in formation of the St.
Alteration zones surrounding the veins show evidence of metasomatic alteration of the host rock.
Petrologic studies, meanwhile, indicate an underlying lithosphere characterised by a largely Proterozoic signature and which shows evidence of deep melt and metasomatic events.
Mineralization consists of veins, replacement bodies in limestones, irregular replacements related to veins, contact metasomatic deposits, and disseminated copper deposits (Toromocho).