numerous circular pits found in the karst region are called sinkholes.
numerous circular pits found in the karst region are called?
sinkholes
a solution lake is a lake occupying a basin formed by surface dissolution of bedrock. in areas underlain by soluble bedrock, its solution by precipitation and percolating water commonly produce cavities. these cavities frequently collapse to form sinkholes that form part of the local karst topography. where groundwater lies near the grounds surface, a sinkhole will be filled water as a solution lake. if such a lake consists of a large area of standing water that occupies an extensive closed depression in limestone, it is also called a karst lake. smaller solution lakes that consist of a body of standing water in a closed depression within a karst region are known as "karst ponds." limestone caves often contain pools of standing water, which are known as "underground lakes." classic examples of solution lakes are abundant in the karst regions at the dalmatian coast of croatia and within large parts of florida.
lake
the dinaric karst region is built mostly of mesozoic limestone and dolomite deposited on top of a huge bahama-type carbonate platform, while a few kilometers thick carbonate successions have been deformed during the alpine orogenesis. the main tectonic phase of the alpine orogenesis in the dinaric karst region took place in cenozoic era (paleogene) as a result of the adriatic microplate (adria) collision with europe, and the process is still active. the mesozoic limestone forms a very distinctive region of the balkans, notable for features such as the karst, which has given its name to all such terrains of limestone eroded by groundwater. the dinarides are known for being composed of karst — limestone rocks — as is dinara, the mountain for which they were named. the quaternary ice ages had relatively little direct geologic influence on the balkans. no permanent ice caps existed, and there is little evidence of extensive glaciation. only the highest summits of durmitor, orjen and prenj have glacial valleys and moraines as low as . however, in the prokletije, a range on the northern albanian border that runs east to west (thus breaking the general geographic trend of the dinaric system), there is evidence of major glaciation. one geological feature of great importance to the present-day landscape of the dinarides must be considered in more detail: that of the limestone mountains, often with their attendant faulting. they are hard and slow to erode, and often persist as steep jagged escarpments, through which steep-sided gorges and canyons are cleft by the rivers draining the higher slopes.
dinaric alps