Lamprophyre-derived high-K mafic enclaves in Variscan granitoids from the Mecsek Mts. (South Hungary)

György Buda, G. Dobosi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Variscan magnesio-potassic microcline megacryst-bearing quartz monzonite and monzogranite contain several chromite-bearing high potassic mafic enclaves of various sizes in Mórágy Hills (South Hungary). These enclaves are biotite amphibol melamonzonite, amphibole biotite melasyenite and rarely amphibole meladiorite according to the classification of igneous rocks of the IUGS Subcommission on the Systematics of Igneous Rocks. The mineralogical, petrological and geochemical compositions of these basic enclaves correspond with lamprophyre-derived locally named vaugnerite/durbachite, which are widespread in the Variscan collision belt. The host plutonic rocks enriched in K and Mg due to the interaction of basic and acid magmas. The basic melt originated from the upper mantle revealed by the presence of chromite. The upper mantle was enriched in compatible and incompatible elements probable as a consequence of an older subduction. Acidic melt formed by the partial melting of the continental crust. Both melts crystallized simultaneously and affected each other. Mafic enclaves became more lamprophyric and the acidic one enriched in K and Mg. They formed probably in a postcollisional uplifted tectonic regime due to extension after compression.

Original languageEnglish
Pages (from-to)115-147
Number of pages33
JournalNeues Jahrbuch fur Mineralogie, Abhandlungen
Volume180
Issue number2
DOIs
Publication statusPublished - 2004

Fingerprint

Bearings (structural)
Amphibole Asbestos
Igneous rocks
lamprophyre
Chromite
enclave
Hercynian orogeny
Quartz
melt
chromite
Tectonics
igneous rock
amphibole
upper mantle
biotite
Melting
Rocks
megacryst
Acids
microcline

Keywords

  • Chromite
  • High potassic mafic enclaves
  • Magnesio-potassic granitoids
  • Mecsek Mts.
  • South Hungary
  • Variscan
  • Vaugnerite/durbachite

ASJC Scopus subject areas

  • Geochemistry and Petrology

Cite this

Lamprophyre-derived high-K mafic enclaves in Variscan granitoids from the Mecsek Mts. (South Hungary). / Buda, György; Dobosi, G.

In: Neues Jahrbuch fur Mineralogie, Abhandlungen, Vol. 180, No. 2, 2004, p. 115-147.

Research output: Contribution to journalArticle

@article{9f7b6a107192493e94cbe79aabaa26b9,
title = "Lamprophyre-derived high-K mafic enclaves in Variscan granitoids from the Mecsek Mts. (South Hungary)",
abstract = "Variscan magnesio-potassic microcline megacryst-bearing quartz monzonite and monzogranite contain several chromite-bearing high potassic mafic enclaves of various sizes in M{\'o}r{\'a}gy Hills (South Hungary). These enclaves are biotite amphibol melamonzonite, amphibole biotite melasyenite and rarely amphibole meladiorite according to the classification of igneous rocks of the IUGS Subcommission on the Systematics of Igneous Rocks. The mineralogical, petrological and geochemical compositions of these basic enclaves correspond with lamprophyre-derived locally named vaugnerite/durbachite, which are widespread in the Variscan collision belt. The host plutonic rocks enriched in K and Mg due to the interaction of basic and acid magmas. The basic melt originated from the upper mantle revealed by the presence of chromite. The upper mantle was enriched in compatible and incompatible elements probable as a consequence of an older subduction. Acidic melt formed by the partial melting of the continental crust. Both melts crystallized simultaneously and affected each other. Mafic enclaves became more lamprophyric and the acidic one enriched in K and Mg. They formed probably in a postcollisional uplifted tectonic regime due to extension after compression.",
keywords = "Chromite, High potassic mafic enclaves, Magnesio-potassic granitoids, Mecsek Mts., South Hungary, Variscan, Vaugnerite/durbachite",
author = "Gy{\"o}rgy Buda and G. Dobosi",
year = "2004",
doi = "10.1127/0077-7757/2004/0180-0115",
language = "English",
volume = "180",
pages = "115--147",
journal = "Neues Jahrbuch fur Mineralogie, Abhandlungen",
issn = "0077-7757",
publisher = "E. Schweizerbart'sche Verlagsbuchhandlung",
number = "2",

}

TY - JOUR

T1 - Lamprophyre-derived high-K mafic enclaves in Variscan granitoids from the Mecsek Mts. (South Hungary)

AU - Buda, György

AU - Dobosi, G.

PY - 2004

Y1 - 2004

N2 - Variscan magnesio-potassic microcline megacryst-bearing quartz monzonite and monzogranite contain several chromite-bearing high potassic mafic enclaves of various sizes in Mórágy Hills (South Hungary). These enclaves are biotite amphibol melamonzonite, amphibole biotite melasyenite and rarely amphibole meladiorite according to the classification of igneous rocks of the IUGS Subcommission on the Systematics of Igneous Rocks. The mineralogical, petrological and geochemical compositions of these basic enclaves correspond with lamprophyre-derived locally named vaugnerite/durbachite, which are widespread in the Variscan collision belt. The host plutonic rocks enriched in K and Mg due to the interaction of basic and acid magmas. The basic melt originated from the upper mantle revealed by the presence of chromite. The upper mantle was enriched in compatible and incompatible elements probable as a consequence of an older subduction. Acidic melt formed by the partial melting of the continental crust. Both melts crystallized simultaneously and affected each other. Mafic enclaves became more lamprophyric and the acidic one enriched in K and Mg. They formed probably in a postcollisional uplifted tectonic regime due to extension after compression.

AB - Variscan magnesio-potassic microcline megacryst-bearing quartz monzonite and monzogranite contain several chromite-bearing high potassic mafic enclaves of various sizes in Mórágy Hills (South Hungary). These enclaves are biotite amphibol melamonzonite, amphibole biotite melasyenite and rarely amphibole meladiorite according to the classification of igneous rocks of the IUGS Subcommission on the Systematics of Igneous Rocks. The mineralogical, petrological and geochemical compositions of these basic enclaves correspond with lamprophyre-derived locally named vaugnerite/durbachite, which are widespread in the Variscan collision belt. The host plutonic rocks enriched in K and Mg due to the interaction of basic and acid magmas. The basic melt originated from the upper mantle revealed by the presence of chromite. The upper mantle was enriched in compatible and incompatible elements probable as a consequence of an older subduction. Acidic melt formed by the partial melting of the continental crust. Both melts crystallized simultaneously and affected each other. Mafic enclaves became more lamprophyric and the acidic one enriched in K and Mg. They formed probably in a postcollisional uplifted tectonic regime due to extension after compression.

KW - Chromite

KW - High potassic mafic enclaves

KW - Magnesio-potassic granitoids

KW - Mecsek Mts.

KW - South Hungary

KW - Variscan

KW - Vaugnerite/durbachite

UR - http://www.scopus.com/inward/record.url?scp=3342885961&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3342885961&partnerID=8YFLogxK

U2 - 10.1127/0077-7757/2004/0180-0115

DO - 10.1127/0077-7757/2004/0180-0115

M3 - Article

VL - 180

SP - 115

EP - 147

JO - Neues Jahrbuch fur Mineralogie, Abhandlungen

JF - Neues Jahrbuch fur Mineralogie, Abhandlungen

SN - 0077-7757

IS - 2

ER -