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The different geological formations occurring in
the Vidisha district are :- |
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a) Alluvium |
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b) Laterite |
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c) Deccan Trap with
inter-trapped beds |
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Alluvium |
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Alluvium occurs over a large
part of the area particularly along the course of streams like
Betwa, Sagar, Besh etc. It consists mainly of a yellow or grey
brown sandy clay and contains a large proportions of 'Kankers
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Northern part of the area. |
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Laterite |
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These occur in some places as
caps on some high trap hills, but generally as ferruginous
cellular rocks capping low lying Deccan trap hills, in places
surrounded by alluvium. These are used mainly as a road
metal. |
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Deccan Trap with inter-trapped beds |
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The Deccan Trap is the most
widespread rock formation in this district. These rocks are
horizontal or nearly horizontal, the dark Lava flows lend to
the countryside a terraced appearance. The principal rock is a
basalt having vesicles filled with zeolite, agate, calcite,
etc. |
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The inter-trappeans, mainly
impure crystalline limestone and cacareous chert occur as a
residual blocks and boulders scatteres over a surface as well
as discontinuous outcrops amidst the Deccan Trap. Small
isolated outcrops of intertrappeans mostly lime stone are also
present in Vidisha. |
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