GEOLOGICAL LANDMARKS OF UKRAINE. TRANS-CARPATHIAN REGION.


Trans-Carpathian internal trough, Mukachivska depression

Irshava area, southern outskirt of llnytsya township

48° 19′ 37″ N lat; 23′ 05′ 20″ E long.

Quarry Square 2 hectares

Stratigraphic, mineralogical.

In the north-eastern outskirt of Ilnytsya township there is located Ilnytske lignite deposit and quarry up to 10 m deep. Below Early Quaternary clay-gravel sediments of 5-7 m thick in the quarry is discovered Pliocene brown coal (weakly-coaliferous lignite) layer up to 2 m thick.

In the coal beds there are preserved fragments of the tree crust (birch) and their trunks. Sometimes there occur findings of softwood cones. Dropped dried trees, branches and their fragments were displaced from surrounding volcanic ridges by rivers and streams into the Irshava basin. They were accumulated in the basin then had been overlapped by terrigenous sediments and transformed into lignite, Ilnytske artificial lignite outcrop is largest in Trans-Carpathian. It characterizes post-volcanic stage of the Trans-Carpathian trough development.

Ecological conditions are suitable.

Accessible by motor-car. 500 m to the south from Ilnystya-Bilky road.

Legally the object as geological landmark is not defined yet.

It is suggested to give the status of geological regional-rank landmark.

Sourсe: Geological Landmarks of Ukraine: In 3 volumes/V.P. Bezvynniy, S.V. Biletski, O.B. Bobrovetal.; V.l. Kalinin, D.S. Gurskiy, I.V. Antakova, Eds. — K.: DIA, 2006. — Volume I. — 320 p.