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MINING and ENERGY

Development potency of mining and energy in Southeast Sulawesi have a good prospect. There are Southeast many deposit, indent, such as available for building material, industry, etc.

The development and occurrence of mineral is S. E. Sulawesi, 1993

No.

Commodity

Location

Stage of Development

Explanation

1.

Nickel Laterite

Pomala, Lasolo, Lasura, Pakue, Torobulu, Kabaena

Exploitation

Occupied by PT. ANTAM and PT. INCO produced 252,000 tons ORE and 20,000 tons FERRO NICKEL ALLOY. PT. Inco occupied the area as reserved for their factory, which located in Southeast Sulawesi about 61,826.31 ha. has not exploitation yet. The total area of Ultra basic rocks as hostrock of Nickel deposit cover more than 200,000 Ha.

2

Asphaltic Rock

Kabungka, Buton Island

Exploitation

Some of the are occupied by PT. Sarana Karya, Which product 182,000 ton in 1993. The total reserve about 160 million tons contain of 15 % - 35 % bitumen. In 1992 Pt. Anisan Australia's. joint venture company produced Avery fine product of asphaltic rock called "Asphalt Micro " ( Very fine Asphaltic with bitumen about 20 % only ), and other called "Mastic" ( about 50 % bitumen ). Those product has been tasted, good quality for road construction. Total capacity of the factories product are 150,000 tons per annum.

3.

Marble

North Kolaka, Kabaena Island, Moramo.

Preliminary -survey

Total reserve about 500 billion M3 , mainly colors are Grey, blackish, white, some reddish. AB deposit has not been exploited yet, expect for local road construction. All location can be reached by car and near the coast.

4.

Limestone

Almost in many parts of S.E. Sulawesi province.

Preliminary -survey

Total reserve about 200 - 300 billion tons.

They are classified as :

  • Crystalline limestone ( for rock of ornanicultalrock of cement industry with CaO : 51 % - 55 %)
  • Coral limestone ( for rock of ornanicultalrock of cement industry with CaO : 51 % - 55 %)
  • Dolomitic limestone ( for cement industry with CaO : 51 % - 55 %, Mgo : 18 - 20 %)

5.

Magnesit

Pandamarang and Lambasina Island.

Preliminary -Exploration by PT. Antam

Associated with ultrabasic rock found in the form as a complex of MgO about 40 %.

Has not been exploited yet, it should be made an Cao : 30 % - 35 %, MgO : 18 - 20 %.

6.

Phosphate

In the archipelago surrounding Buton Island

Exploration

Type of deposit is guano which is founded in limestone Sulawesi cave. The reserve of each cave is form few tons two hundreds tons a P2O5 between 5 % - 14 %. No further information about another type of phosphate rock.

7.

Chromate

North Kolaka, Lasolo, Pondidaha.

preliminary

-Survey

Wide spreads of chromate deposit due to the fact that more than 1/3 of area Southeast Sulawesi consist ultra basic rocks.

No detail survey of chromate deposit has been done. A preliminary survey has reported the deposit found in the regencies of Kolaka, Kendari and Kambaena Island ( Buton Region ).

The deposit found in the form of vein and pod about 1 - 2 meters width and contain of Cr2O3 about 50 %.

8.

Manganese

Lasalimu, Buton

General Survey

Floating of manganese has been found in the jura formation. The size about few cm - 2 meter, which content of Mn between 50 % - 53 %. The exploration is still working by local company.

9.

Quartz sand

Wanseriwu (Muna)

Wawonii Island

Tangketa tada.

Preliminary Survey/ observation

* Average Thickness :

a.1.5 m, b. 1 m, c. 6 m.

* SiO2 content :

a.97 %, b. 90 %, c. 90 %.

* Reserve :

a. 150,000 tons, b. 1,000,000 tons, c. 4,000,000 tons (Kwarsit)

10.

Semi Precious stone

Pakue, Pasarwajo, Pondidaha.

Exploration

Deposit of green and black opal found in ultrabasic and schist formation.

No detail survey has been done, it ' Sulawesi seem should to be made further exploration by test pitting and trenching to find higher quality.

11.

Oil

  • Muna and Buton Island
  • Kendari off shore.
 

Oil exploration in Muna and Buton island has been done by Conoco Buton Shell and Texaco Ltd. In Kendari off shore started in since 1990. Some of oil seepage founded on the surface of the area.

                    Source : branch of Dep. of Mining and Energy, Southeast Sulawesi 1994

Estimation of Hydro electropower in Southeast Sulawesi ( main river )

No.

River

Average Discharge(M3/S.)

Average Head (M3/S.)

Power (MW)

DAM HEIGHT ( M )

Transmission to Unaaha ( Km )

Reservoir ( Km )

1.

Konaweha

77,308

50

50

50

6

83

2.

Lasolo

123,196

75

80

50

50

40

3.

lalindu

413,000

75

260

50

80

15

                    Source : Branch of Dep. of Mining and energy, Southeast Sulawesi 1994.

Type of Electric Enterprise, in S.E. Sulawesi, 1994. ( Mega Watt)

No.

ENTERPRISE

POWER INSTALL

REMARK

1.

PLN ( Government Electric power enterprise ).

28

Diesel Electric

Power ( oil )

2.

Captive power ( Industries which operated their owngenerator ).

60

Diesel Electric

Power ( oil )

 

Total ………

88 *)

x

                    Source : Branch of Dep. of Mining and Energy, Southeast Sulawesi, 1994.

Note : Government policy about energy development is to change the utilization of oil to other sources like hydro electric power and coil for instance.

 

The future demand of Electric Power in S.E. Sulawesi, to achieve the year 2000 ( Mega Watt )

No.

DESCRIPTION

Requirement Capacity

1.

Cement Industries

30

2.

Fishing Industries in Wawonii Island

50

3.

Government program to change from oil to renewable energy

80 *

4.

Expansion of Ferro Nickel smalter PT. factory at Pomalaa

50

 

Total requirement capacity……..

218 **

*) Diversification program

**) Not include the utilization of households

                    Source : Branch of Dep. Mining and Energy, Southeast Sulawesi , 1994.

 

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Created by Ir. Asrun, M.Eng.Sc and Co.
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Last Updated : January 17, 1999 12:19