Xv016691 2012 english

1. Khongor-Ovoo Copper-bearing complex
metal occurrence in Tsogt-Ovoo soum of
Umnugovi province
License No: XV-016691
“EMGR” LLC
2012
Developed by: “PLAGIOCLASE” LLC

2. Location
Khongor ovoo occurrence ( L-48-127-А. 1-12) This area is located in 2,2 km to the
southwest of Khongor tolgoi with 260° azimuth, 2,6 km to the south east of Kherem
Mountain with 135° azimuth. It is an alteration zone of copper, zinc, lead and gold
metalizing process occupies about 4.5square.km of site.
Geographic coordinates: 44° 36' 50"
105° 02'40"
License No: XV-016691
Exploration area : 16210.57 hectare
Types of mineral: Cu, Pb, Zn, Au
Nomenclature: L-48-126, 127
1. Exploration area coordinates:
1) E: 105°11´00" N: 44°40´1,51"
2) E: 105°11´00" N: 44°35´1,51"
3) E: 105°00´31,21" N: 44°35´1,5"
4) E: 105°00´31,21" N: 44°39´1,5 "
5) E: 104°52´41,12" N: 44°39´1,51 "
6) E: 104°52´41,12" N: 44°38´1,52 "
7) E: 104°49´41,12" N: 44°38´1,51 "
8) E: 104°49´41,13" N: 44°40´1,51 "

3. location map

4. location map
Licensed exploration area of copper-bearing complex
metal ore in Khongor-Ovoo

5. Picture 2. landscape（winter）
Picture 3. landscape（spring）

6. Uba Infrastructure.
 For prefecture, the exploration area is belong to Tsogt-Ovoo soum of Umnugovi province, and
for geographic region, it is laid in elevation of Khanin Khets
 It is located in 480 km to Ulaanbaatar city, 130 km to Dalanzadgad, centre of Umnugovi
province, 20 km to Tsogt-Ovoo soum, 70 km to gold mine of Olon Ovoot, and 24 km to gold
primary deposit of Har Ovoot Tolgoi.
 There isn’t settled area in the exploration area. It is possible to travel inside area by car during
four seasons.
 The area is elevated in 1100-1300m above see level, and is located territory contains cordillera
hillock, barrow, shrub and valley with saxaul
Picture 4. A roadmap to Tsogt-Ovoo soum from UB and location map of the
exploration area

7. Investigation history
 1978: Geological mapping with scale of 1:200000 and
exploration were performed by B.I.Goldenberg and others
 1983: Geological mapping with scale of 1:200000 and
exploration were performed by L.B.Zabotkin and others
 1995: Geological mapping with scale of 1:50000 and
exploration were performed by D.Gansukh and others
 2010: Exploration was performed by “EMGR” LLC

8. LICENSE FOR MINERAL EXPLORATION
No: XV-016691

9. Specialty of geological structure
Picture 5. Gold-quartz
veins
 The exploration area is located in Mandal ovoo ore district, Sukhbaatar zone
in Southern Mongolian Metallogenic zone.
 In the area mostly has distributed Silurian, Devonian , Carboniferous-Permian
sediment, volcanic rocks and lower Devonian, Carboniferous igneous rock.
 Erdenebayarkhural layer (D2ir).The layer locates east side of exploration
area. The layer covers the lower Devonian Bogd layer and medium Devonian
clay schist Tooroi layer comformly.
 The layer has been cut by late Permian-Triasian igneous rock which is
remaining inside of the massive and lower Permian multi contented sub
volcanic stripe body. Also it has been cut by many fractures and made
breakage plaits .
 Erdenebayarkhural layer has gray, black grayish and greenish colored
sometimes appears brown-red, pinkish sub layers in it. Mostly consists from
beds of aleurolite, silica-clay and argillaceous slate, silica argillite. Inside of
the layer has narrow bed of lime and silica carbonic rocks.
 Layer of Tooroi (D2tr). The layer has homogenous argillaceous slate and
argillite, aleurolite that have been occurred in every occurrence of the layer.
 The layer is up to dark color and the color changes to trends. Sandstone,
limestone , narrow bed of dacite have occurred as lenticular vein in the layer.
Picture 6. silica
carboniferous rock

10. Specialty of geological structure
Picture 7 sedimentary, volcanogenic rocks
Picture 8 dyke shaped ore body
Picture 9 Malachite Mineralized、
Brown Ore Mineralized Gold Ore
deposit and rocks of layer (D2tr) of Tooroi
Layer of Erdenebaynhural (D2ir).

11. Region structure-tectonic-metallogenic map

12.  Quaternary system (Q). In the field has pullulated pebbled gravel,
sand and clay. Width of deposit is no more then 1.0-1.5 meter.
Stream alluvium consists of 3-5 meters of sand barrow made by
wind.
 Quaternary deposit has a colored reddish grey generally.
Specialty of geological structure
Top quaternary-today (QIII-IV)
Picture 10. Quaternary deposit
Top quaternary-today(QIII-IV)
Top quaternary-today (QIII-IV)

13. Trench work of exploration area of Copper-bearing
complex metal ore in Khongor-Ovoo
Picture 11 Exploration—Trail Trench -1995
 It is traceable there are used to melt a copper ore in secondary inflection area. We have collected a
sample (Ац 6054) from rhyolite which has been cut by quartz fiber, oxidized to iron oxide and fracture
has been filled by turquoise. Result from spectral analyses in the samples has Сu-0,3%, РЬ-0,001%
and Zn-0,003%. To have more details about the deposit we made an field exploration trip in 4 square
meter. While field exploration, we have collected litho geochemical sample in every 100 meters, 9
trenches has been excavated in every 200, 700, 1200 meters with 4 lines. In total 174 ridge samples, 23
pointed samples has been collected and analyzed by gold spectral and chemical analysis.
 As we see from analyses result of ridge samples, parts mostly contain sub volcanic acid effusive
aleurolite, secondary quartz, cut by talcked quartz fiber, ferrous fractures has filled by turquoise and
enriched by pyrite scurf are determined following elements as Сu-0,1%, Zn-0,1%, Рb-0,01%. For
more details see Table No.15.

14. Trench work of exploration area of Copper-bearing
complex metal ore in Khongor-Ovoo
Picture 14 Exploration—Trail Trench
Trench No.01 Trench No.08

15. Result of spectral analyses in point and trench samples collected
from the trenches
 As result of spectral analysis performed in samples collected from quartz fiber colored white,
reddish, slightly blue and brown, gold contents in following samples were: Sample No.1/2: Аu-1,5
ppm; Sample No.1/4: Аu-0,0005ppm; Sample No.1/7: Аu-1,5ppm; Sample No.2/1: Au-
0,03ppm; As result of chemical analysis, gold contents in samples were: Sample No.1/2: Аu-
0,5ppm; Sample No.1/7: Аu-0,12ppm.
 As result of spectral analysis performed in trench samples collected from iron-stained quartz fiber,
following elements were detected as: Sample No.2/9: Sb-0,003%, Аs-0,015%; Sample No.2/10
Sb-0,001%, As-0,01%; Sample No.2/11 Sb-0,002%
Picture 12 . gold-quartz
veins
Picture 13. Siliceous rock colored white,
reddish, slightly blue and brown

16. ORE BODY No.1
 The sulfidized, beresitized and ferrous rhyolite from inflection region, which was
strongly cut by quarts and quartz fibers, has been chosen by ore body.
 The ore bodies divided into three main blocks by fractures directed to north and
northwest.
 The size of the ore body is width 110 meter, length 1200 meter and it has been cut by
about 50 with 20-200 meter of quartz fibers.
 The sample has been analyzed by spectral analysis and the result has been showed that
Сu-0,02%, Zn-0,05%. More than 40% of ore body has those kind of content.

17. ORE BODY No.2
 The center block has been involved in Ore body No.2 and its
length is 600meter and width is 100meter. it has been cut by
about 30 with 30-100 meter of quartz fibers.
 As results of spectral analyses in samples from the ore body,
higher contents of Cu, Zn and Pb were detected.
 Average contents of the detected elements by spectral analyses
are: in trench No.3, Cu-0,05%, Zn-0,01; Trench No.3: Сu-
0,015%, Zn-0,01% and Рb-0,01%.
 50% of ore body has those kind of content.

18. ORE BODY No.3
• Eastern block has been involved in Ore body No.3.
• Two large ore bodies have length 300m, 350m and width 50m, 60m
respectively, were developed in this area and they have been cut by about 20
with 20-100 meter of quartz fibers.
 Using result of spectral analyses carried out, average contents of Pb and Zn in
several trench have been calculated by higher content values than 0,01%. As an
calculation, Trench No.5: Zn-0,02%, Рb-0,01%; Trench No.6: Zn-0,02%, Рb-
0,01% and Trench No.7: Zn-0,01%.
 70% of ore body has those kind of content.

19. Resource of Zinc
Ore body Length, m Width, m Depth, m
Volume,
( ton/m3)
Rate of parts
higher
content of
element, %
Average
content of
Zinc, %
Prognostic
resource of
Zn,
million.ton
Ore body
No.1
1200 110 50 2.5 40 0.05 330.0
Ore body
No.2
600 100 50 2.5 50 0.01 37.5
Ore body
No.3
325 110 50 2.5 70 0.02 62.6
Total Р2 430.1
Resource

20. Ore body
Length,
m
Width, m Depth, m
Volume,
( ton/m3)
Rate of
parts higher
content of
element, %
Average
content of
Cu, %
Prognostic
resource of
Cu,
million.ton
Ore body
No.1
1200 110 50 2.5 40 0.02 198.0
Ore body
No.2
600 100 50 2.5 50 0.03 112.5
Total 310.5
Resource of Copper
Resource

21. Ore body
Length,
m
Width, m Depth, m
Volume,
( ton/m3)
Rate of parts
higher content
of element, %
Average
content of
Pb, %
Prognostic
resource of
Pb,
million.ton
Ore body
No.2
300 100 50 2.5 50 0.01 18.7
Ore body
No.3
325 110 50 2.5 70 0.01 31.3
Total 50.0
Resource of lead
Resource

22. Geological structure of exploration area of Cooper-bearing
complex metal ore in Khongor-Ovoo

23. Geological-exploration work to be done first priority
 1:10000 scaled exploration work should be done for copper-bearing complex metal occurrence
in Khongor-Ovoo.
 Base of the work:
 In the occurrence: Prognostic resource (P2) was estimated that Zn-430,1 thousand. ton, Cu-
310,5 thousand. ton, Pb-50.0 thousand. ton.
 Hydrothermal metasomatite inflection area.
 Higher content of Cu,Pb and Zn.
 Precious and rare elements such as As, Sb, Ag and Au detected in some quartz fiber in the area.
 The Khongor-Ovoo is located in complex ore area, might have future to have continuance of
ore zone.
 As a conclusion the field might need accurate investigation specially for a gold by drilling and
geophysical method.
 In the Khongor-Ovoo area used to have exploration of turquoise and there had remaining of
copper grounds in old trenches. Therefore, it is evidence of copper-bearing complex ore.
Perspective of the resource, comment about future work in
the area

24. Based on prognostic resource (Р2) estimation of poly-metallic ore body and strongly
inflected zone in Khongor-ovoo has source of
Zn - 430,1 thousand. ton, Cu- 310,5 thousand. ton , Pb-50,0 thousand. ton
The area can be concluded, it had been effected by late magma activation and the fracture
zones has been satiated by hydrothermal solution, ore minerals had been trailed by strong
metasomatosis activation.
In the area has appearance of Sb, As, Ag elements, which are mostly occurred in top layer
of gold metallizing process, it can be interesting as a gold ore too.
 Therefore the area has to be investigated specially for a gold by drilling and geophysical
method.
Also in the area complex exploration study have to be done, based all above-mentioned
information and probability of complex ore body.
CONCLUSION, RECOMMENDATIONS