Genesis of crustal xenoliths from andesite in the Southeast Mátra Mts (Hungary) based on petrologic and geochemical studies

Anita Jávor; Zuárd Ditrói-Puskás; Gábor Dobosi

doi:10.1556/ageol.49.2006.4.2

Acta Geologica Hungarica

Volume/Issue:: Volume 49: Issue 4

Genesis of crustal xenoliths from andesite in the Southeast Mátra Mts (Hungary) based on petrologic and geochemical studies

Authors:

Anita Jávor

Anita Jávor
Search for other papers by Anita Jávor in
Current site
Google Scholar
PubMed

Zuárd Ditrói-Puskás

Zuárd Ditrói-Puskás
Search for other papers by Zuárd Ditrói-Puskás in
Current site
Google Scholar
PubMed

, and

Gábor Dobosi

Gábor Dobosi
Search for other papers by Gábor Dobosi in
Current site
Google Scholar
PubMed

View More View Less

Pages:: 311–330

Online Publication Date:: 12 Jun 2007

Publication Date:: 01 Dec 2006

Article Category:: Research Article

DOI:: https://doi.org/10.1556/ageol.49.2006.4.2

Keywords:: mineral chemistry; spinel; andesite; geothermobarometry; corundum; crustal xenoliths; plagioclase cumulates; garnet; granulite facies; andalusite; microsyenite

Restricted access

The newly discovered crustal xenoliths from Miocene andesites in the Mátra Mts (Northeast Hungary) were classified into three petrographic types. Type 1 is a garnetiferous, plagioclase-rich cumulate rock, presumed to originate from the felsic portion of the nearby Szarvaskõ-Darnó mafic igneous complex. The almandine-rich garnet has been inferred to be of granulite facies origin. Garnet - orthopyroxene geothermobarometry on the orthopyroxene - plagioclase corona structure around it indicates a later high temperature (800-950 °C) low pressure (3-4 kbar) retrogression event. Type 2 is also plagioclase-rich cumulate rock with contact metamorphic assemblage containing spinel, corundum and andalusite, which crystallized in the course of dehydration reactions of biotite and/or smectite in hornblende hornfels to sanidinite facies conditions. Type 3 is microsyenite, which contains abundant anorthoclase and minor amount of Na- and K-rich kaersutitic-barkevikitic amphibole.

Save
Cite
Email this content

Share Link

Copy this link, or click below to email it to a friend
Email this content
or copy the link directly:

https://akjournals.com/abstract/journals/024/49/4/article-p311.xml
The link was not copied. Your current browser may not support copying via this button.

Link copied successfully

Collapse
Expand

Acta Geologica Hungarica

Print ISSN:: 0236-5278

Online ISSN:: 1588-2594

Acta Geologica Hungarica
Language	English
Size
Year of Foundation	1952
Publication Programme	changed title
Volumes per Year
Issues per Year
Founder	Magyar Tudományos Akadémia
Founder's Address	H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher	Akadémiai Kiadó
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5278 (Print)
ISSN	1588-2594 (Online)