Macrocrystic corundum and Fe?Ti oxide minerals entrained in alkali basalts from the Eger (Ohře) Rift: MgFe3+-rich ilmenite as tracer of an oxidized upper mantle

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F14%3A00432618" target="_blank" >RIV/67985831:_____/14:00432618 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00710-014-0324-8" target="_blank" >http://dx.doi.org/10.1007/s00710-014-0324-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00710-014-0324-8" target="_blank" >10.1007/s00710-014-0324-8</a>

Result language

angličtina

Original language name

Macrocrystic corundum and Fe?Ti oxide minerals entrained in alkali basalts from the Eger (Ohře) Rift: MgFe3+-rich ilmenite as tracer of an oxidized upper mantle

Original language description

Macrocrysts of corundum, ilmenite, and spinel-group minerals from alluvial deposits of the Eger Rift were studied for composition, texture, and mineral inclusions. All macrocrysts show usually magmatic corrosion textures indicating disequilibrium with the transporting alkali-basalt magma. Corundum grains, exclusively sapphires, were classified by trace-element signatures as magmatic and metamorphic types. Some sapphire grains show erratic compositions that may have resulted from a metasomatic overprint.The inclusion inventory of magmatic corundum suggests crystallization from a differentiated alkaline silicate melt. Corundum itself was never observed as an inclusion mineral. Magnesium- and Fe3+-rich ilmenite, described as typical mantle-derived species, is the dominant heavy mineral in almost all alluvial deposits of the Eger Rift. Most discrete macrocrysts are similar in appearance and composition to kimberlite- and basanite-related ilmenite. Ilmenite included in alluvial corundum an

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DB - Geology and mineralogy

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Mineralogy and Petrology

ISSN

0930-0708

e-ISSN

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Volume of the periodical

108

Issue of the periodical within the volume

5

Country of publishing house

AT - AUSTRIA

Number of pages

18

Pages from-to

645-662

UT code for WoS article

000342415400004

EID of the result in the Scopus database

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