TRIPURAINFO

Minerals


The most important minerals in the state are oil and natural gas. The ongc has carried out drilling at several sites. Two thermal power station run on natural gas is operational in baramura hills and rokhia. Another important mineral resource of the state is glass sand.

The ongc produced 353 mcm of natural gas from the state in 1999-2000 against 306 mcm of natural gas in 1998-99. The total estimated value of natural gas was rs.48.91 crores in 1999-2000.

The mineral resources of any state provide a avenue for economic development but the process of mining may have extensive impact on land, soil and water resources. The mining projects have as a consequence become a part of development sector requiring environmental clearance under environmental protection act, 1986, eia notification 1994.

In tripura, the mineral resources are mainly glass sands, limestone, plastic clay and hard rock; all of these materials are being used to a variable degree. However, the single most important resources in the state is oil and natural gas. Ongc or oil and natural gas corporation has initiated massive exploration programme in the state, details of which are dealt later.

As for the other minerals, table-1 provide an account of locations, deposit, current uses, etc. A detail of clay deposit in Tripura has been dealt in the state of environment report for tripura (1989). The impact of mining and quarrying of mineral resources in Tripura has so far been insignificant.
 

 

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Mineral

Location

Uses

Hard rock

Jampui hills
Longatarai hills

Road metals

Limestone

Sakhan & jampui range
Manpui area (990,000 t. Reserve)

Not suitable cement
Suitable for inferior quality of lime puzzolana mix.

Clay

All over the state generally in river bank deposit
Good clay deposit in west and south region
Total 1.73 million ton deposit in four zone out of six zones*
[*mohanpur-bamutia-kamalghat; bishramganj-bagma; champamura-baldakhal-jogendranagar; khowai-teliamura-ampi; santirbazar-udaipur; kumarghat and baidyathakurpara- anandanagar-maheshkhola-dukli-sonamura area]

Sanitary ware
Stone wares
Sewerage pipes
Electric insulator
Refractory grade.

Glass  sand

Bishramganj (160,000t)
Old agartala (16,000t)
Jogendranagar (3627t)
Sekerkote (80,000t)
Dashrambari (5330t)
Mohanpur (97,875t)
Baidyathakurpara-anandanagar
Maheshkhola and dukli (na)
Total reserve 3,62,832 tonnes)

Many uses

*[source: gsi report 1982,1999]

 

Of the total geographical area of tripura, 76% can be marked as of “tertiary” origin and 24% belong to quaternary period; none of these contain any major mineral resources. A gsi report of 1982 provide a list of non-metallic and metallic mineral vis-à-vis their location or otherwise in tripura (table-2) indicating the poor profile.

 

Mineral resources potential in tripura. Table-2:

Sl.no.

Mineral

Status

A.

Non-metallic

1.

Lime stone

Commodity not located or absent

2.

Dolomite

Commodity not located or absent

3.

Coal

Commodity not located or absent

4.

Clay

Commodity not located or absent

5.

Refractories

Commodity not located or absent

6.

Glass sand

Good reserve, low grade

7.

Graphite

Commodity not located or absent

8.

Fertilizer

Commodity not located or absent

9.

Gravel sand silt

Good reserve, low grade

10.

Building stone

Commodity not located or absent

B.

Metallic

11.

Ferrous

Commodity not located or absent

12.

Non-ferrous

Commodity not located or absent

13.

Noble metals

Commodity not located or absent

[source: gsi report 1982]