Result of ASM data collection (Mongolia) Dr. B.Tumenbayar*, J. - - PowerPoint PPT Presentation

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Aug 23, 2022 359 likes •565 views

CCOP-GSJ/AIST-GAI CASM-Asia Workshop on the State-of-the Art of Science and Technology to Protect the Environment and People Result of ASM data collection (Mongolia) Dr. B.Tumenbayar*, J. Uramgaa*, T. Maidar * BEMM/Sans Frontiere Progres

SLIDE 1

CCOP-GSJ/AIST-GAI CASM-Asia Workshop on the State-of-the Art of Science and Technology to Protect the Environment and People

Result of ASM data collection (Mongolia)

Dr. B.Tumenbayar*, J. Uramgaa*, T. Maidar*

BEMM/Sans Frontiere Progres (NGO)

27-29 November 2006, Bandung, Indonesia

SLIDE 2

ASM Survey covered

Province (Aimag )

14

Sub province (Soum)

37

ASM mining site (target material/element)

45

– Gold 34 – Coal 5 – Fluorite 4 – Mercury 1 – Tin 1

SLIDE 3

Deposit types of artisanal miners

Gold a) Hard rock (Quartz-Vein) b) Placer (Alluvial, Prolluvial) Fluorspat Hard rock (Epithermal Vein) Coal Placer Tin Placer Mercury Placer (anthropogenic)

SLIDE 4

Gold distribution and ASM location (2004)

SLIDE 5

Geology and metallogenic province (gold)

By Tumenbayar B. Uramga J. on the basis of Tectonic Map of Mongolia (1990)

SLIDE 6

ASM Mining technology

Hand digging (100%)

45

SLIDE 7

ASM processing methods

Dry panning

4

Milling with mercury

17

Panning in the water

14

Cyanide

n/a

SLIDE 8

ASM Refining technology

Hand separation

10

Hg amalgamation

17

Panning

18

Cyanide usage (keeping in secret)

n/a

SLIDE 9

Milling quartz with Mercury

SLIDE 10

ASM area environmental degradation /hazards

High

27/15

Middle

10/11

8/19

ASM Health issues concerned

Very high

High

Middle

SLIDE 11

Social aspect

Number of artisamal miners covered

8966

Approximate ratio of child miners/worker

1/15

Approximate ratio of women miner/worker

1/8

Indigenous issues

Environment

Health, environment

36 45

Total

SLIDE 12

7 years old boy is panning for gold.

Uyanga Soum in Ovorkhangai Aimag. Spring 2003.

(Photo: Tumenbayar.B) .

SLIDE 13

Relationship between large mining company and ASM mining site

Very bad

5

9

3

N/A (means mostly bad)

28

Total 45

SLIDE 14

ASM hazards

SLIDE 15

ASM health issues concerned

SLIDE 16

Mercury pollution (2000)

SLIDE 17

Environmental degradation of ASM site (2006)

SLIDE 18

Үр удмаа хамгаалъя

Ìèíàìàòà õîò,ßïîí (1956) Сүмбэр, Монгол (2000)

SLIDE 19