Castle of Somoska

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The main attraction of this site is a so-called "stony-waterfall" a unique crooked, regular six- or five-sided, rathar slight columns formed by columnar jointing of basalts, which were exposed during Middle Age in order to build up a castle from basalt columns. Opposite the Castle hill the basalts are exposed in the former stone-pit Mačkaluk.

Ruins of Somoskő at the 19th century. Picture at Ország-Világ mazain (1885)

Ruins of Somoskő at the 19th century. Picture at Ország-Világ mazain (1885)

Unique basalt outcrop from the Pliocene-pleistocene, it is a volcanic neck that turned into a lava-flow within the maar-type crater filled with lava. The neck with ca. 160 m in its diameter was asymmetric, as the west wall was nearly vertical, and that is shown by the horizontal, and 20° dip lie of the column under the fortress near the border. On the contrary, columns of the famous “basalt-sack” on the slope of the fortress-hill have a 60-80° angle dip, reflecting the slight tilt of the inner walls of the crater. A study trail, leading up the NE slope of the hill, reveals tuff and conduit-breccia, which refer to the original filling of the conduit. The almost horizontal contact of the basalt with the surrounding sandstone is revealed by a small sand-quarry situated on the south-east slope, above the study trail.


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