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presented by: Mr. DJEDOUBOUM Emmanuel Ambroise and Mr. BRAHIM ABDERAMANE YACINE E-mail: [email protected]/[email protected] 10 -14 November ,2014/Johannesburg REPUBLIC OF CHAD Ministry of Oil ,Mines and Energy

Ministry of Oil ,Mines and Energy - unece.org€¦ · E-mail: [email protected]/[email protected] 10 -14 November ,2014/Johannesburg REPUBLIC OF CHAD Ministry of Oil …

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presented by: Mr. DJEDOUBOUM Emmanuel Ambroise and Mr. BRAHIM ABDERAMANE YACINE

E-mail: [email protected]/[email protected] 10 -14 November ,2014/Johannesburg

REPUBLIC OF CHAD

Ministry of Oil ,Mines and Energy

I. INTRODUCTION

Chad is a landlocked country located in the heart of Africa, between 7 °

and 24 ° N, 13 ° and 24 ° east longitude. It has an area of 1,284,000

km2 and extends from north to south and 1900 km from east to west

over 900km. It shares borders with Libya, Sudan, Niger, Nigeria,

Cameroon and the Central African Republic. The major part of the

country is in the form of a plain altitude between 290-320 m.

Depression located SW of Faya Largeau, which represents the lowest

point of the country, is about 120 m below the level of Lake Chad

located in the approximate odds of 280 m. The Chad has three

mountain ranges: the stage of Ouddaï east on the border with Sudan

which altitudes vary between 500 and 1000 m, the central massif

(Guera), which rises to 1600 m and the Tibesti north including several

peaks over 3,000 m, and whose peak reaches 3415 m Emi Koussi.

Fifth African country area (1.284.000km2), filled with 11,274,106

inhabitants according to the last population census in 2009 and with a

mineral potential not yet developed, Chad remains to date a virgin

area.

II. GEOLIGICAL BAKGROUND The Chad is between the Congolese craton south, the West African

craton in the west and the Nile Craton northeast. The geology

consists of two main geological units: Precambrian crystalline

basement and sedimentary cover.

The oldest rocks (granitoid) and Precambrian metamorphic rocks are

found on the outskirts of two bowls: one of Erdis, which is an

extension of the Libyan Kufra basin, and Lake Chad. They suffered

major orogenic events (Pan late Proterozoic: 600/650 Ma).

The Chadian space can be partitioned into ten groups, from north to south. Mayo Kebbi is located south-west of the country, on the border

with Cameroon. It is a region consisting of previously developed land

and pleated that extend into Cameroon hills. Land recognized are

varied, and folded sedimentary, metamorphic and igneous

Proterozoic and Archean. This is probably the most explored and

best known geologically region.

The Guéra or Massif Central is a blunting of eroded base which forms a

massive hill between N'Djamena and Abeche. The crystalline rocks, in

particular, are poorly understood.

Salamat, opposite the Central African Republic, is a very moist and rich

in plant area. As for the north, the difficulties of access to the region's

geology explain that remains the subject of many questions.

Here is some brief geological settings Chad

III.RESSOURCES OF URANIUM Uranium mineral resources of Chad are distributed in several ways

throughout the territory: In the late 1940, the mapping showed the

presence of uranium and thorium index of the most developers are in

BET North and in Mayo Kebbi West and South.

Most of these indices are associated with alkaline granites, leuco

granites or syenites of Protorozoïque. There are other

indications of thorium in sedimentary environment in relation to

deposits from ancient regolith overhaul.

Clues uranium "primary" include

in the Tibesti, north Aouzou towards Yedri, ten uranium

occurrences identified in the granitic basement fractures

in Enneri Miski, south of Tibesti, an index located in

southeastern Zouar; Finally, in the Mayo Kebbi West, madazang or surveys have to recognize the presence of pitchblende, coffinite of silicates, U-Pb. The exploration minéralisation attribute this to an overlapping area shaer zones Units Néoprotorozoïque. Clues to Thorium and sedimentary uranium are reported in the Paleocene cover: In the Cambro-Ordovician conglomerate regions Boubao, Wadi Baku (near fada);

At the base of the Ordovician sandstones on the periphery of the Tibesti;

GEOLOGICAL MAP OF CHAD

A.URANIUM OF MADAGZANG

The deposit Madagzang (Léré,Mayo Kebbi West) is best known

because it has been the subject of previous studies by UNDP and the

IAEA (International Atomic Energy Agency) between 1970s and 1980s

these studies were supplemented by exploration Chad Mining Services

Limited. The Chad Mining Services Company has completed over 170

vertical wells,22 trenches and a dozen drilling inclined concentrations

vary from one well to another the greatest value is in the order of

4000ppm in wells and is 50 to 100 ppm in surface during the mapping.

The deposit is estimated at 8,000,000 tons.

a. Methodology: CMS works are performed from 2007 to 2010 as follows:

• Airborne (airbone survey);

• The mapping (mapping);

• Utilization spectrometer hand and Probe

• Drilling and trenching;

• The sampling;

• Log drilling and log trenches;

• Entering data into the SABLE software

IV.EXPLORATION PROSPECTS

Guera at the Centre of the country, has a potential still unclear,

alkaline granitic (attributed to the Pan African)

Added to this is the entire province of BET(Borkou-Ennedi-Tibesti)

presents a potential whatsoever in base with differentiated granites,

or in training coverage, just outside the Tibesti. In particular,

continental clastic formations interspersed Paleozoic paleo-fracture

subméridiennes presents comparable to that of the region of the Air

in Niger characteristics.

From the above uranium in Chad is not explored in its entirety, it

necessary to deploy the means to highlight the areas of indices

which we have just discussed to better understand the subject of this

deposit very helpful as energy.

Maesure of concentration of Uranium of Léré

WELL DRILLING

SAMPLE OF CORE DRILLING HEMATISED

CORE DRILLING

Spectrometer Sample of core drilling

MAP OF DIFFERENTS ZONES OF FAVORABILITY OF CONCENTRATION OF URANIUM Zones of high favorability

zones of midlle

favorability

Zones of low favorability

V. CONCLUSION In conclusion we can say that the Republic of Chad is a relatively landlocked territory without easy access to the sea; it is important to target the development of areas of the Massif Central; Borkou-Ennedi-Tibesti to evaluate all of the reserves and this area of uranium developer little known in our country.

THANK YOU FOR YOUR ATTENTION!!!