Nógrádi Geopark az Országjáróban és a Karancs könyve
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Kérjük görgess
Origin: Miocene, Sarmatian and Upper Pleistocene.
Geomorphological features: In the Szirák Dózsa György út sand mine, the sediments were accumulated by constant watercourse with a gradually decreasing energy. As a result, a large number of mollusks accumulated from the sand, accumulated from the Sarmatian sediments, as well as Mollusca and small vertebrate remains, suggesting a period of river activity (risszwürm interglacial).