cover

Hugo Buser:

Paleostructures of Nigeria and Adjacent Countries

1966. 90 pages, 5 tables, 6 maps, 6 cross-sections on 6 folders, 16x24cm, 300 g
Language: English

(Geotectonic Research, Volume 24)

ISBN 978-3-510-50915-7, paperback, price: 17.00 €

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Contents

Contents top ↑

Introduction 3
I. Geological Outline 3
II. Paleostructures 4
III. Purpose of Study 5
The Basement 6
The Sediments 9
I. Introduction 9
Provinces 13
II. The Lower Cretaceous Continental Deposits and the Albian
Transgressions and Regressions 14
A. The basal continental deposits ("Continental Intercalaire") 14
Conclusion 18
B. The marine Albian sediments 19
Conclusion 21
III. The Cenomanian-Turonian Transgressions and Regressions 22
A. The Cenomanian initial phase 22
B. The lower Turonian (Salmurian) maximum inundation phase 25
C. The middle-upper Turonian regressive phase 31
D. Conclusion 34
IV. The Senonian-Maestrichtian-Danian Transgressions and Regressions 35
A. Senonian 36
B. Maestrichtian 40
C. Danian 53
D. Conclusion 54
V. The Tertiary-Quaternary Transgressions and Regressions 56
A. Paleocene 57
B. Eocene 60
C. Oligocene-Miocene 63
D. Pliocene 66
E. Quaternary 67
F. Conclusion 67
Weathering and Erosion 68
I. Lateritisation 68
II. Drainage 69
A. The basement drainage pattern 69
B. The interior basin of Lake Chad 70
C. The Benue River System 70
D. The Niger River System 71
E. Coast-line development 72
F. Conclusion 73
Vulcanism
Geotectonic Evolution of Paleostructures 75
Economic Importance of Paleostructures 77
I. Metallic Deposits 77
II. Sedimentary Deposits 78
Summary 80
Zusammenfassung 82
Index of Formations 85
Selected Bibliography 88
Tables
Table 1: Paleostructures 4
Table 2: Stratigraphy of Cretaceous-Tertiary-Quaternary and sedimentary
economic deposits 10
Table 3: Provinces 13
Table 4: Salmurian ammonite distribution chart of the Gongola area
(NE Nigeria) 29
Table 5: Stratigraphical correlation: Maestrichtian deposits of Western
Sector 52
Maps
Map 1: Index Map; Cross-sections: Evolution of paleostructures
Map 2: Basement and Vulcanism
Map 3: Lower Cretaceous continental deposits and Albian
transgressions-regressions
Map 4: Cenomanian-Turonian transgressions and regressions
Map 5: Senonian-Maestrichtian-Danian transgressions and regressions
Map 6: Tertiary-Quaternary sediments, volcanism and drainage