Relation between xenoliths and magnetotelluric (MT) conductors in the Pannonian Basin (PB) - Short review
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Tartalom: http://real.mtak.hu/20192/
Archívum: MTA Könyvtár
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Type = Conference or Workshop Item
Cím:
Relation between xenoliths and magnetotelluric (MT) conductors in the Pannonian Basin (PB) - Short review
Létrehozó:
Klébesz, Rita
Ádám, Antal
Novák, Attila
Szabó, Csaba
Wesztergom, Viktor
Dátum:
2014-04-27
Téma:
QE01 Geophysics / geofizika
QE02 Geochemistry / geokémia
QE06 Petrology. Petrography / kőzettan, petrográfia
Tartalmi leírás:
MT deep soundings in the PB detected Conductive Anomalies (CA) both in the crust and at the Lithosphere Asthenosphere
Boundary (LAB) in the upper mantle. The shallow depth of the LAB (60-70 km) correlates well
with the high heat flow in the PB. The origin of the crustal conductors is supposed in fluids and carbonaceous
rocks (graphite?).
In the Bakony-Balaton Highland and Nógrád-Gömör Volcanic Fields, Pliocene basalt volcanoes transported peridotite
xenoliths to the surface. Behind textural analyses, thermobarometry is the geochemical tool for the deep
lithospheric xenoliths to reconstruct their P-T paths and put them in the stratigraphic column of the lithosphere.
On the P-T values of xenoliths geotherms ? corresponding to the heat flow values of the PB ? can be determined
for different volcanic areas and a general geotherm too for the PB.
The crossing of these geotherms with the adiabatic curves (AAC) of the lithosphere confirms the shallow position
of the LAB according to different geochemists.
Further aim of the study is to find relation between the carbonaceous materials and fluid inclusions in minerals of
the xenoliths and the Transdanubian CA in the upper crust and the cause of abrupt decrease of the seismic activity
in the middle crust in the volcanic areas.
Típus:
Conference or Workshop Item
PeerReviewed
Formátum:
text
Azonosító:
Klébesz, Rita and Ádám, Antal and Novák, Attila and Szabó, Csaba and Wesztergom, Viktor (2014) Relation between xenoliths and magnetotelluric (MT) conductors in the Pannonian Basin (PB) - Short review. In: EGU General Assembly 2014, 2014.04.27-2014.05.02, Wien, Ausztria.
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