Volcanic facies and hydrothermal processes in Triassic pillow basalts from the Darno Unit, NE Hungary

Summary: The Darnó Unit within the Zagorje-Mid-Transdanubian Megaunit is an allochtonous part of Dinarides in NE-Hungary and represents a relict of the Neotethyan accretionary complex. It contains blocks of submarine basalts of Triassic age in turbiditic sediments olistrostrome of Jurassic age. The...

Full description

Permalink: http://skupni.nsk.hr/Record/nsk.NSK01000719335/Details
Matična publikacija: Geologia Croatica
61 (2008), 2/3 ; str. 385-394
Glavni autor: Kiss, Gabriella, geologinja (-)
Ostali autori: Molnar, Ferenc, geolog (-), Palinkaš, Ladislav Antun
Vrsta građe: Članak
Jezik: eng
Predmet:
Online pristup: Geologia Croatica
LEADER 03148caa a2200337 ir4500
001 NSK01000719335
003 HR-ZaNSK
005 20180920111026.0
007 ta
008 091113s2008 ci ||| ||eng
035 |9 (HR-ZaNSK)721913 
035 |a (HR-ZaNSK)000719335 
040 |a HR-ZaNSK  |b hrv  |c HR-ZaNSK  |e ppiak 
042 |a croatica 
080 |a 55  |2 MRF 1998. 
080 |a 54  |2 MRF 1998. 
100 1 |a Kiss, Gabriella,  |c geologinja 
245 1 0 |a Volcanic facies and hydrothermal processes in Triassic pillow basalts from the Darno Unit, NE Hungary /  |c Gabriella Kiss, Ferenc Molnar and Ladislav A. [Antun] Palinkaš. 
300 |b Ilustr. 
500 |a Tema broja: 100th anniversary of the research on fossil algae in Croatia 
504 |a Bibliografija: 17 jed. 
520 8 |a Summary: The Darnó Unit within the Zagorje-Mid-Transdanubian Megaunit is an allochtonous part of Dinarides in NE-Hungary and represents a relict of the Neotethyan accretionary complex. It contains blocks of submarine basalts of Triassic age in turbiditic sediments olistrostrome of Jurassic age. The lava clogged in the lime mud at the original site of volcanism and developed closely packed pillow, pillow fragment hyaloclastite breccia, and peperite facies. Interaction between the lava and the sea water produced mostly chloritic alteration of basalt and precipitation of hydrothermal calcite in amygdales, feeding channels of lava lobes and hyaloclastite breccia cements. Calcite is associated with chlorite, epidote, hematite and pyrite. Fluid inclusions in calcite infillings record conditions of fluid/rock interaction. Salinities of fluid inclusions (3.2–5.6 wt.% NaCl equiv. wt.%.) are close to the salinity of recent sea water and their homogenization temperatures are in the range of 80–150°C. Fluid inclusion data support interpretation that volcanic facies represent rapidly cooled distal zones away from the submarine volcanic centre. This is also confirmed by the comparison to the volcanic and hydrothermal alteration facies of the submarine basalt lava-flow complex and associated pillow lava formation of Triassic age in the Hruškovec quarry in the Kalnik Mts., NW-Croatia. The obtained data contribute to understanding of the early history of Neotethyan evolution, i.e. dilemma about rifting or oceanization in Triassic time and offer new aspects of correlation between units of Dinaridic origin which had been displaced from their original setting by large scale Tertiary tectonic processes. 
653 0 |a Vulkanske stijene  |a Tektonska aktivnost  |a Hidrotermalni procesi  |a Podmorski bazaltni vulkanizam  |a Geološka istraživanja  |a Bazaltne stijene  |a Kamenolom  |a Kalcit  |a Hematit  |a Pirit  |a Salinitet  |a Slanost  |a Morska voda 
653 4 |a Tercijar  |a Trijas 
653 5 |a Mađarska  |a Hrvatska  |a Dinaridi  |a Kalnik  |a Hruškovec 
700 1 |a Molnar, Ferenc,  |c geolog 
700 1 |a Palinkaš, Ladislav Antun 
773 0 |t Geologia Croatica  |x 1330-030X  |g 61 (2008), 2/3 ; str. 385-394  |w nsk.(HR-ZaNSK)000010964 
981 |b B11/08 
998 |a dalo091113  |c rpeo110301  |b mili1809 
856 4 2 |u http://www.geologia-croatica.hr/ojs/index.php/GC  |y Geologia Croatica