THEORETICAL-MODEL OF SURFACE KARSTIC PROCESSES

Our study improves theories of denudation of karst surfaces. We examin e a debris zone developed mostly by solutional fragmentation of the fi ssured rock. Denudation of karsts is attributed to the downward moveme nt of the debris zone. The different rates of this movement in a karst region cause different denudation rates and so wight result in the de velopment of dolinas. Therefore our model might be suitable for the ex planation and description of the development of solution dolines. Acco rding to the differential equation of solution, the migration rate of the karstic relief is determined by the CO2 production, the soaking ti me and the average diameter of the fragments of the debris zone. Accor ding to the above - supposing constant parameters of karstification - the time of denudation at any point of a karstic area can be also calc ulated when knowing the original thickness of the rock exposed to kars tic denudation. The age of a solution doline can be determined by the formula obtained.