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c) Petrophysical measurements



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c) Petrophysical measurements
Four quartz samples representing the different quartz bodies of Marawat Alimikan were 
measured to determine some of their petrophysical properties such as water absorption, stress and 
mechanical resistance (Table 3).
The petrophysical properties results of the analyzed quartz deposits of Marwit Alimikan area 
indicate their suitability for the manufacture of artificial ornamental stone /7/. Also the high 
mechanical resistance with low water absorption is suitable for using this quartz for manufacturing 
solar silicon /8/. 
Conclusion 
Geochemical studies revealed that Marwat Alimikan quartz deposits exhibit high degree of 
purity ranging from pure to very pure owning to the silica ratio which ranges between 99.25 and 
99.60% with an average content 99.46%.
The differential thermal analyses of Marwat Alimikan quartz deposits, clarify that they are of 
α -quartz type. Also their petrophysical measurements (high mechanical resistance and low water 
absorption values) are suitable for the silicon solar cell production after suitable beneficiations. 
The high degree of purity of the quartz deposits of Marwat Alimikan area, their remarkable 
petrophysical characteristic (high mechanical resistance and low water absorption values) and 


ҚазҰУ Хабаршысы. География сериясы. 2010, №2 (31) 
 
33 
thermal behavior have nominated and qualified these deposits, even without beneficiation, to be 
used in hi-tech industries such as Aluminum alloy and Ferrosilicon alloy industries. 
Table 1 
Results of XRF analyses of seven quartz samples, Marwat Alimikan area 
Marwa (1) 
Marwa (2) 
Marwa (3) 
Sample 
No. 
1 3 5 8 9 11 12 
Av. 
Major oxides wt % 
SiO

99.56 99.27 99.25 99.50 99.52 99.60 99.52 
99.46 
TiO

< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
< 0.01 
Al
2
O
3
0.21 0.27 0.28 0.16 0.25 0.15 0.15 
0.2 
Fe
2
O

0.03 0.02 0.04 0.02 0.02 0.02 0.01 
0.02 
MnO 
<0.01 
< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
< 0.01 
MgO 
< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
<0.01 
CaO 
0.07 0.05 0.05 0.08 0.05 0.05 < 
0.01 0.05 
Na
2

< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
< 0.01 
K
2

< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
< 0.01 
P
2
O

< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
0.01 
< 0.01 
SO

< 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 
< 0.01 
L.O.I 
0.01 0.30 0.30 0.02 0.09 0.01 0.01 
0.11 
Trace elements (ppm) 

2 <1 <1 <1 <1 <1 <1 

Cr 
29 15 40 17 19 12 4 
20 
Co 
<1 <1 <1 <1 <1 <1 5 

Ni 
8 6 9 6 8 3 1 

Cu 
5 6 5 4 5 6 < 
1 4 
Zn 
<1 <1 <1 <1 <1 5 6 

Ga 
<1 <1 <1 <1 <1 3 < 


As 
<1 <1 <1 <1 <1 <1 < 

<1 
Rb 
<1 1 <1 <1 <1 <1 2 
<1 
Sr 
23 23 23 24 23 23 < 

20 

3 2 3 3 3 3 < 
1 3 
Zr 
3 3 3 4 4 3 5 

Nb 
<1 <1 <1 <1 <1 <1 < 



Mo 
3 4 4 2 5 3 4 

Sn 
1 1 1 1 1 1 2 

Sb 
1 <1 <1 <1 1 <1 1 
<1 
Ba 
44 57 42 52 46 63 < 

44 
La 
<1 <1 <1 <1 7 3 < 


Ce 
<1 <1 <1 <1 <1 <1 1 


Pr 
<1 <1 5 3 <1 3 6 

Nd 
<1 16 <1 30 <1 <1 13 

Vb 
3 4 5 1 1 3 5 

Hf 
2 2 2 3 1 <1 

1 2 
Ta 
<1 2 <1 4 <1 5 < 


Pb 
3 <1 <1 <1 2 <1 < 


Th 
<1 <1 <1 <1 <1 3 < 




4 3 3 3 3 <1 4 

Table 2 


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