SUMMARY
" Engineering-geological characteristics of slope zo--nes':8'hould give more attention, than has· been given
previously, to both differentiation of heterogeneous deposits of these zones 'and the processes modelling them. Three groups of processes: su:rface mass
move-ments,
downwash, and gully erosion are distinguished(Table). The gro\lps of deposits corresponding to these processes include: colluvia, deluvia, and proluvla,
·respectively. The deposits markedly differ in geolo-'gieal and physico-mechanical properties; this diffe-.rentiation is of ,remarkable imporhnce for evalua-tion of slope stability in geological-engineering sur-veys and in mapping. The above mainly applies to the colluvia and deluvia representing groups of slope
'depOsits; the typical features of which are not yet
,dearly defined. Basic c;riteria for identification and classification of the groups and ty'pes of slope depo-sits are given.
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