Morphology and Depositional Processes of a Carbonate-Filled Canyon in the Carboniferous KT-II Formation of the Eastern Precaspian Basin, Kazakhstan: Insight from 3D Seismic Data

Figure 9

Seismic profiles showing six seismic facies found in the studied CFC and proximal strata. (a–d) Six seismic facies. (e–g) Core photographs of the aggrading carbonate platform (seismic facies 3 in (b)) of well B, mainly grey limestone. (h–k) Thin section photographs of carbonate platform facies in KT-II. (l, m) Thin section photographs of Visean delta foresets. (h) Sparry algal foraminiferal limestone of the aggrading platform (seismic facies 3 in (b)) in well B. (i) Sparry foraminiferal oolitic limestone of the aggrading platform (seismic facies 3 in (b)) in well B. (j) Sparry clastic limestone of the progradational platform (seismic facies 4 in (c)) in well C. (k) Sparry foraminiferal limestone of the progradational platform (seismic facies 4 in (c)) in well C. (l) Fine-grained feldspar lithic sandstone of delta foresets (seismic facies 5 in (c)) in well C. (m) Medium-grained feldspathic quartz sandstone of delta foresets (seismic facies 4 in (c)) in well C.