Szentbékkálla
Encyclopedia
Szentbékkálla is a village in the Káli-basin, Balaton-Highland, Hungary. In the medieval ages the village had a monastery of St. Benedict order, that explains its name, because earlier it was Szentbenedekkál (Kál of Saint Benedict
Order of Saint Benedict
The Order of Saint Benedict is a Roman Catholic religious order of independent monastic communities that observe the Rule of St. Benedict. Within the order, each individual community maintains its own autonomy, while the organization as a whole exists to represent their mutual interests...

). Kál was a prince and landlord here in the ages of the Árpád's peoples arrival to Hungary.

Interesting geology at Szentbékkálla

The Szentbékkálla region is interesting from geological aspects. The volcansim at the Bakony–Balaton Highland Volcanic Field produced beautiful scenic mountains which preserved the elevations of the Pliocene plains. The basalts contain various xenoliths. Among the xenoliths there are igneous inclusions genetically related to basalts.

Genetic and textural characteristics of the host basalt and some of its inclusions are analog from Szentbékkálla, North-Balaton Mountains, Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

, to the range of the Martian meteorites, the shergottites. Several types of peridotitic rocks (lherzolite
Lherzolite
Lherzolite is a type of ultramafic igneous rock. It is a coarse grained rock consisting of 40 to 90% olivine along with significant orthopyroxene and lesser calcic chromium rich clinopyroxene. Minor minerals include chromium and aluminium spinels and garnets. Plagioclase can occur in lherzolites...

s, websterites and harzburgite
Harzburgite
The ultramafic igneous rock, harzburgite, is a variety of peridotite consisting mostly of the two minerals, olivine and low-calcium pyroxene ; it is named for occurrences in the Harz Mountains of Germany. It commonly contains a few percent chromium-rich spinel as an accessory mineral...

s) can be found as inclusions in the basalt of tuff and the olivine-phyric basalts also can be found among the basalts of the Little Hungarian Plain and Tapolca Basin.

Short origin history of lherzolites of Szentbékkálla

It was found 150 years ago, that basalts of the Balaton-Hinghalnds contain "olivine
Olivine
The mineral olivine is a magnesium iron silicate with the formula 2SiO4. It is a common mineral in the Earth's subsurface but weathers quickly on the surface....

-bombs". Later, about 40 years ago it was shown, that these olivine-bombs are xenoliths originating in the upper mantle. All four main components of the lehrolites were found: the two fpyroxenes, olivine and spinel
Spinel
Spinel is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4. Balas ruby is an old name for a rose-tinted variety.-Spinel group:...

.

Petrographic research all over the world studied mantle xenoliths and it was found, they are the source rocks for basalts: the basalts are partial melts of the mantle rocks. During the upheaval process the basaltic liquid carries up the fragments of the upper mantle. Several other igneous xenoliths are also related to the upper mantle and basalts. That is the short explanation of the sequence of various upper mantle xenoliths inside the basalts of Szentbékkálla.

Outer references


Szentbékkálla is a village in Veszprém county
Veszprém (county)
Veszprém is the name of an administrative county in Hungary. Veszprém is also the name of the capital city of Veszprém county.-Veszprém county:...

, Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

.

External links

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