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Karst relief of the Mali me Gropa Massif, central Albania

Andreychouk Viacheslav, Eftimi Romeo, Nita Jerzy, Klimchouk Alexander

Geological Quarterly

2022

Vol. 66, No. 1

art. no. 6

The mid-altitude mountain massif of Mali me Gropa is located in the central part of Albania, rises to an altitude of 1500–1800 m a.s.l., is composed mostly of Mesozoic limestone, and is characterized by extensive surface karst development. The karst relief is dominated by “doline” morphology including “polygonal” karst. Detailed geomorphological analysis of the western part of the Mali me Gropa massif (so-called Western Massif) by means of GIS methods is used to determine and explain the morphometric and morphological diversity of the area’s topography. Based on a homogeneity criterion, a number of geomorphological units with specific kinds of karst relief have been distinguished within the massif. The differences in karst sculpture concern the size (diameter) of dolines and depressions, their depth, shape and symmetry, orientation, density of occurrence and spatial pattern, which provide the basis for distinguishing geomorphological units. The spatial differentiation of the karst relief is explained by the influence of factors which are evolutionary (geological and geomorphological evolution of the massif), hypsometric (altitude difference of terrains) and geomorphologic-structural (inclination of the slopes and layers). The relatively poor expression of open karst conduits (i.e. caves and vertical shafts) on the surface of the massif may result from the relative immaturity of the epikarst zone, the widespread occurrence of residual cover on the plateau, and the accumulation of large amounts of clay material in dolines and depressions. Detailed hydrogeological studies show, however, high karst permeability and dominance of conduit flow. Considering the high geomorphological landscape and ecological value of the area, it should be granted the status of a nature reserve or national park. Geomorphological and karstological research within the massif should be continued as it represents a type of karst found also in other parts of Albania. This type of karst area is of great economic (groundwater reserves) and natural protection (environmental) importance.

The influence of lithology and tectonics on the development of the karst landscape in the Dong Van Global Geopark, NE Wietnam

Doan M. H., Gałka E.

Geotourism / Geoturystyka

2017

nr 3-4 (50-51)

I--XIV

The Dong Van Karst Plateau Geopark is located in the mountainous area of the northern part of Vietnam. It became the 77th member of the Global Geoparks Network in 2010. The Dong Van Karst Plateau Geopark is a unique combination of breathtaking scenery and culture of ethnic groups, with many potential values such as its geoheritage, biological diversity and historical places, which attract many domestic and foreign visitors. Up to 60% of the area of this geopark is covered by karst. Its topography is strongly dissected by deep river gorges with steep slopes, and this area has experienced several deformational phases from the Middle Cambrian/Early Ordovician, to the Cenozoic. These elements contributed to the breathtaking scenery of the Dong Van Karst Plateau Geopark, the first global geopark in Vietnam and the second in South-East Asia.

Geopark Dong Van Karst Plateau położony jest w górzystym rejonie północnej części Wietnamu. W 2010 roku jako 77 geopark dołączył do Światowej Sieci Geoparków (Global Geoparks Network). Geopark Dong Van Karst Plateau cechuje unikalne połączenie wyjątkowych krajobrazów i kultury grup etnicznych, z licznymi potencjalnymi walorami, takimi jak geodziedzictwo, różnorodnością biologiczną i historycznymi miejscami, które przyciągają wielu krajowych i zagranicznych turystów. Obszar krasowy zajmuje 60% geoparku, silnie rozcięty głębokimi przełomami rzek o stromych stokach, został objęty kilkoma fazami deformacyjnymi, trwającymi od środkowego kambru/wczesnego ordowiku do kenozoiku. Te elementy złożyły się na niezwykły krajobraz Geoparku Dong Van Karst Plateau, pierwszego światowego geoparku w Wietnamie i drugiego w południowo-wschodniej Azji.