The Lower Muschelkalk consists mainly of limestone, calcareous marls and clayey marls. Within this shale are several light gray, silty to clayey shale seams up to thick. The high embankment was constructed on a deposit of collapsible clayey, silty sand a deep. The soils of the Broad Basin are mostly loamy or clayey Ultiso. But sometimes it varies from clayey to sandy loam. The first consists mainly of sand dunes and clayey alluvial soils in the polders. The soils in Bangalore vary from red laterite to clayey soils. The local soil is mainly clayey with some alluvial deposits. It can grow in thick salt layers on clayey or sandy soils. Salt pans can be distinguished in that they contain thinly laminated layers of clayey silt. Black locust does not do well on compacted, clayey or eroded soils. Compared to most clayey soils, terra rossa has surprisingly good drainage characteristics. However, clayey loam is well suited to the raising of this crop. In this formation there is a dominance of clayey successions over sandy horizons. Geologically the district is divided into three regions, namely, sandy, clayey and hard-rock regions.