Geology Reference
In-Depth Information
Table 5.2 Major and trace elements in Gondwana lamprophyres and lamproites from Damodar Valley Coal Fields and Andhra Pradesh
Raniganj basin
Jharia basin
Bokaro
Andhra Pradesh
Lamprophyres
Lamproites
Lamproites
Lamproites
Lamproites
KH-1
KH-2
M2/1
M2/2
SD-1
SD-2
P-1
P-2
CP60/93
B-4
R839A
SiO
2
47.62
43.21
35.29
35.7
32.37
33.21
33.41
34.21
30.30
41.10
40.08
TiO
2
3.20
3.68
4.25
5.94
9.32
10.12
9.21
9.62
3.60
7.20
5.21
Al
2
O
3
5.80
6.41
5.54
5.99
9.84
9.21
9.56
10.12
4.32
7.34
3.99
Fe
2
O
3
8.51
9.11
11.2
11.22
8.68
8.75
9.1
8.21
8.58
12.44
9.76
Mno
0.14
0.2
0.286
0.137
0.12
0.11
0.32
0.42
0.15
0.16
0.11
Mgo
8.01
12.12
8.31
10.05
8.09
8.31
8.11
8.42
19.89
10.65
15.93
CaO
8.40
6.98
7.18
5.85
8.26
8.31
8.29
7.18
10.25
2.89
7.51
Na
2
O
0.11
0.14
0.11
0.08
0.13
0.25
0.16
0.31
0.15
0.13
0.06
K
2
O
4.91
4.96
3.42
4.69
7.09
7.14
7.31
7.56
2.89
5.32
2.41
P
2
O
5
0.71
1.11
6.32
2.42
2.93
2.45
2.32
2.81
1.20
0.75
1.41
LoI
12.54
12.12
14.77
15.61
11.95
11.35
12.31
11.85
2.86
2.18
12.05
Total
99.95
100.04
98.48
98.99
98.78
99.21
100.10
100.71
84.19
90.16
98.52
Mg#
78.86
84.05
74.62
78.02
78.69
79.00
77.93
80.25
90.15
77.23
86.61
Al(ppm)
30,697
33,925
29,320
3,1702
5,2078
4,8744
50,596
53,560
22,864
38,847
21,117
Ti
19,181
22,058
25,475
35,604
55,864
60,659
55,205
57,662
21,578
43,157
31,229
P
3,098
4,844
27,580
10,561
12,787
10,692
10,124
12,263
5,237
327.
6,153
Cr
310
483
308
424
342
205
342
274
479
Co
49
49
83
81
Ni
214
373
425
298
336
350
Rb
67.5
20.4
57.0
85.2
54.3
81.8
83.2
91.5
85.5
133
137
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