The theory of metasomatic zoning

Korzhinskii, D. S.

doi:10.1007/bf00207435

Cited by 129 publications

(104 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…If an originally enriched metasomatic agent is assumed, we suggest that the explanation for this apparently paradoxical behaviour lies in the chromatographic nature of infiltration metasomatism (Korzhinskii, 1968;Hofmann, 1972). This causes the metasomatic fronts of the solutes to lag behind the fluid front itself.…”

Section: Amphibole Metasomatismmentioning

confidence: 86%

Petrology, Mineral and Isotope Geochemistry of the External Liguride Peridotites (Northern Apennines, Italy)

Rampone

Hofmann

Piccardo

et al. 1995

Journal of Petrology

169

View full text Add to dashboard Cite

show abstract

Section: Amphibole Metasomatismmentioning

confidence: 86%

Petrology, Mineral and Isotope Geochemistry of the External Liguride Peridotites (Northern Apennines, Italy)

Rampone

Hofmann

Piccardo

et al. 1995

Journal of Petrology

169

View full text Add to dashboard Cite

show abstract

“…The formation of zoning during metasomatic processes is common, and can result from changes in the chemistry of a single fluid infiltrating the country rock (e.g. Korzhinskii, 1968;Brady, 1977;Meinert, 1998;Winter, 2001). However, individual fenite veins can show multiple zones of differing minerals with clearly defined contacts, mirrored either side of a fracture.…”

Section: Veined Vs Pervasive Fenitesmentioning

confidence: 99%

Fenites associated with carbonatite complexes: A review

Elliott

Wall

Chakhmouradian

et al. 2018

Ore Geology Reviews

153

View full text Add to dashboard Cite

A B S T R A C TCarbonatites and alkaline-silicate rocks are the most important sources of rare earth elements (REE) and niobium (Nb), both of which are metals imperative to technological advancement and associated with high risks of supply interruption. Cooling and crystallizing carbonatitic and alkaline melts expel multiple pulses of alkali-rich aqueous fluids which metasomatize the surrounding country rocks, forming fenites during a process called fenitization. These alkalis and volatiles are original constituents of the magma that are not recorded in the carbonatite rock, and therefore fenites should not be dismissed during the description of a carbonatite system. This paper reviews the existing literature, focusing on 17 worldwide carbonatite complexes whose attributes are used to discuss the main features and processes of fenitization. Although many attempts have been made in the literature to categorize and name fenites, it is recommended that the IUGS metamorphic nomenclature be used to describe predominant mineralogy and textures. Complexing anions greatly enhance the solubility of REE and Nb in these fenitizing fluids, mobilizing them into the surrounding country rock, and precipitating REE-and Nb-enriched micro-mineral assemblages. As such, fenites have significant potential to be used as an exploration tool to find mineralized intrusions in a similar way alteration patterns are used in other ore systems, such as porphyry copper deposits. Strong trends have been identified between the presence of more complex veining textures, mineralogy and brecciation in fenites with intermediate stage Nb-enriched and later stage REE-enriched magmas. However, compiling this evidence has also highlighted large gaps in the literature relating to fenitization. These need to be addressed before fenite can be used as a comprehensive and effective exploration tool.

show abstract

“…Olade and Fletcher (1976) have made similar observations, which they attributed to acidhydrothermalleaching along an advancing replacement front as envisioned by Korzhinskii (1968). These observations suggest that manganese and barium can provide important clues to patterns of alteration brought about during regional metallization.…”

Section: Silver and Goldmentioning

confidence: 72%