Geology Reference
In-Depth Information
Table 2.1
Selected dates of the Precambrian Central African Shield
Long
Lat
Rock name
Dates (Ma)
Method
Author
22
48
0
31
00
E7
44
0
42
00
S Musefu
2772
28
Rb-Sr whole-rock
Cahen et al. (
1984
)
23
39
0
54
00
E6
8
0
13
00
S
Bushimay basalt
948
20
K-Ar whole-rock
Cahen et al. (
1984
)
17
58
0
11
00
E9
10
0
6
00
S
Dibaya migmatite
2787
164 Rb-Sr whole-rock
Cahen et al. (
1984
)
28
30
0
4
00
E2
56
0
38
00
S
Kasika granite
986
10
U-Pb zircon
Tack et al. (
2010
)
29
23
0
44
00
E3
29
0
55
00
S Mugere granite
1379
10
U-Pb zircon
Tack et al. (
2010
)
29
58
0
51
00
E3
41
0
11
00
S
Bukirasazi granite
1205
19
U-Pb zircon
Tack et al. (
2010
)
29
40
0
37
00
E2
44
0
23
00
S
Butare orthogneiss
1982
6
U-Pb zircon
Tack et al. (
2010
)
29
14
0
1
00
E2
18
0
13
00
S
Kilimbi Muzimu
1373
6
U-Pb zircon
Tack et al. (
2010
)
13
1
0
21
00
E5
49
0
1
00
S
Boma
2086
64
Rb-Sr whole-rock
Cahen et al. (
1984
)
15
20
0
1
00
E 0
37
0
2
00
S
Cariango
2293
43
Rb-Sr whole-rock
Cahen et al. (
1984
)
15
18
0
11
00
E9
19
0
0
00
50
S
Lucala migmatite
2560
Rb-Sr whole-rock
de Carvalho et al. (
2000
)
14
38
0
4
00
E9
2
0
36
00
S
Quilombo gneiss
1790
32
Rb-Sr whole-rock
de Carvalho et al. (
2000
)
13
59
0
48
00
E8
37
0
25
00
S
Caxito migmatite
684
20
Rb-Sr whole-rock
de Carvalho et al. (
2000
)
22
31
0
17
00
E6
13
0
29
00
S
2648
22
Rb-Sr whole-rock
Cahen et al. (
1984
)
22
3
0
18
00
E6
52
0
17
00
S
2593
92
Rb-Sr whole-rock
Cahen et al. (
1984
)
22
30
0
14
00
E6
55
0
10
00
30
S
1468
K-Ar whole-rock
Cahen et al. (
1984
)
24
2
0
40
00
E7
50
0
44
00
S
2037
30
U-Pb
Cahen et al. (
1984
)
22
36
0
17
00
E8
21
0
40
00
S
Kapanga
2135
100 Rb-Sr whole-rock
Cahen et al. (
1984
)
20
17
0
39
00
E8
54
0
14
00
S
2825
3
U-Pb zircon
Doucour´ et al. (1999)
16
35
0
42
00
E 1
19
0
40
00
S
Andulo migmatite
2520
36
Rb-Sr whole-rock
de Carvalho et al. (
2000
)
16
2
0
58
00
E 4
45
0
13
00
S
1853
74
Rb-Sr whole-rock
Cahen et al. (
1984
)
14
49
0
60
00
E 3
8
0
3
00
S
2243
94
Rb-Sr whole-rock
Cahen et al. (
1984
)
15
54
0
54
00
E 3
23
0
50
00
S
1949
30
Rb-Sr whole-rock
Cahen et al. (
1984
)
15
4
0
15
00
E 4
23
0
36
00
S
1847
62
Rb-Sr whole-rock
Cahen et al. (
1984
)
21
9
0
59
00
E6
13
0
46
00
N Ippy
2828
70
Rb-Sr whole-rock
Rolin (
1995
)
17
28
0
26
00
E5
57
0
30
00
N Togbo
652
19
U-Pb zircon
Rol(
1995
)
13
36
0
2
00
E1
37
0
0
00
S
Franceville granite
2659
30
Rb-Sr whole-rock
Cahen et al. (
1984
)
13
59
0
57
00
E6
0
0
3
00
N
544
40
Rb-Sr whole-rock
Poidevin (
1985
)
10
51
0
18
00
E4
0
0
52
00
N Bafia metamonzodiorite
618
7
U-Pb zircon
Toteu et al. (
2006
)
11
32
0
33
00
E4
11
0
56
00
N Augen metagranite
604
3
U-Pb zircon
Toteu et al. (
2006
)
13
56
0
2
00
E8
5
0
6
00
20
N Buffle Noir amphibolite
2130
U-Pb zircon
Toteu et al. (
2001
)
10
47
0
1
00
E4
52
0
4
00
N Makenene gneiss
2018
9
U-Pb zircon
Toteu et al. (
2001
)
14
4
0
59
00
E5
35
0
1
00
N Lom metavolcanite
2269
100 U-Pb zircon
Toteu et al. (
2001
)
11
47
0
6
00
E6
42
0
5
00
N Banyo charnockite
600
10
U-Pb zircon
Toteu et al. (
2001
)
13
32
0
58
00
E7
20
0
12
00
N Ngaoundere granite
595
10
U-Pb zircon
Toteu et al. (
2001
)
14
48
0
5
00
E6
39
0
4
00
10
N Gaoui granite
600
U-Pb zircon
Toteu et al. (
2001
)
13
26
0
4
00
E5
52
0
2
00
S
Noqui granite
999
7
U-Pb zircon
Tack et al. (
2001
)
13
42
0
23
00
E5
30
0
47
00
S
Bata Kimenga granite
917
14
U-Pb zircon
Tack et al. (
2001
)
13
37
0
12
00
E5
49
0
45
00
S
530
12
Rb-Sr whole-rock
Cahen et al. (
1984
)
29
21
0
26
00
E3
4
0
12
00
N
2894
67
Rb-Sr whole-rock
Cahen et al. (
1984
)
23
27
0
19
00
E3
50
0
4
00
N
2448
28
Rb-Sr whole-rock
Cahen et al. (
1984
)
28
5
0
42
00
E1
45
0
8
00
N
2793
66
Rb-Sr whole-rock
Cahen et al. (
1984
)
32
48
0
4
00
E0
29
0
33
00
N
2536
24
Rb-Sr whole-rock
Cahen et al. (
1984
)
24
2
0
6
00
E3
36
0
5
00
N Nzangi gneiss
3005
64
Rb-Sr whole-rock
Cahen et al. (
1984
)
29
2
0
20
00
E1
23
0
59
00
N
1978
72
Rb-Sr whole-rock
Cahen et al. (
1984
)
30
15
0
0
00
E1
43
0
14
00
77
N
2725
Rb-Sr whole-rock
Cahen et al. (
1984
)
30
43
0
32
00
E0
39
0
57
00
S
1887
245 Rb-Sr whole-rock
Cahen et al. (
1984
)
31
33
0
45
00
E8
17
0
30
00
S
Kate granite south
1723
41
Rb-Sr whole-rock
Lenoir et al. (1994)
34
19
0
49
00
E8
54
0
17
00
S Mbarali granite
2026
8
U-Pb zircon
Lenoir et al. (1994)
31
24
0
21
00
E6
31
0
23
00
S Mpanda gneiss
1902
73
Rb-Sr whole-rock
Lenoir et al. (1994)
32
13
0
4
00
E2
51
0
39
00
9
S
Geita rhyolitic volcanite
2699
U-Pb zircon
Borg and Krogh (
1999
)
32
22
0
52
00
E3
39
0
15
00
S
Homolo rhyolitic volcanite
2808
3
U-Pb zircon
Borg and Krogh (
1999
)
34
16
0
35
00
E1
17
0
24
00
S Musoma Mara granite
2668
11
U-Pb zircon
Manya et al. (2006)
34
18
0
38
00
E4
20
0
12
00
S Mpanpa volcanite
2742
27
Sm-Nd whole-rock Manya and Maboko (
2008
)
(
continued
)
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