Bangldesh has numerous rivers which are carried out over it. Among
these rivers, only three rivers are dominated all over the country
which are comes from Himalaya. Due to the denudation process, about
2 billion tones of sediments are carried per year, and about 40% of
them are deposited in fluvial system and forming numerous bar. The
most of the bar deposits along the three major rivers (The Padma,
The Brahmaputra-Jamuna and The Meghna) are comprises heavy and
light minerals. The heavy minerals are consist of non-opaque
(zircon, tourmaline, rutile, epidote, staurolite, garnet, chlorite,
monazite, biotite, hornblende, kyanite and leucoxene) and opaque
(ilmenite, magnetite, hematite, and limonite). But this report is
mainly emphasis on five economic minerals concentration, variation
and their reserve. A total of 4,54,253 tons of crude sands
containing 1,58,988 tons of heavy minerals are available in the
Alatuli char deposits of the Padma River. In the Mahongonj char,
total of 6,11,632 tons crude sand containing 1,10,093 tons of heavy
minerals. And in the Srinagar char of the Meghna River, the total
of 2,97,768 tons crude sand containing 41,687 ton of heavy
minerals.
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