1794-6190
1794-6190
S1794-61902017000100007
10.15446/esrj.v21n1.39703
Nigeria
Nigeria
00
03
2017
00
03
2017
21
1
7
16
[
1988
7
167-80
]
[
1989
24
183 - 191
]
[
1993
47
183-92
]
[
1980
15
291-309
]
[
1989
8
251-82
]
[
1992
213
141-51
]
[
1965
1
]
[
1988
7
743-7
]
[
1984
2
97-101
]
[
1952
47
583-608
]
[
1981
75
139-78
]
[
1983
8
1-30
]
[
2005
100
561-608
]
[
2010
105
593-625
]
[
1996
8
130-52
]
[
1986
143
587-99
]
[
1987
22
99-108
]
[
1949
]
[
Geol. Surv. Nigeria
1950
7
217-21
]
[
1970
251-66
]
[
1975
11
45-55
]
[
1990
19-38
]
[
2002
241
]
[
1992
7
131-52
]
[
1976
13
20-7
]
[
1985
20
76 - 80
]
[
1965
3
49 - 51
]
[
1978
89
151-4
]
[
1982
68
1141-9
]
[
1984
21
41- 48
]
[
1990
10
643-56
]
[
1996
197
]
[
1965
145
]
[
1990
99
B21-42
]
[
1998
7
341-57
]
[
1967
51
761-79
]
[
1954
24
1-85
]
[
1930
]
[
2000
155
]
[
1983
120
529-33
]
[
1982
394
]