Tectonic development of the Rukwa Rift Basin in SW Tanzania:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
Fachber. Geowiss., TU Berlin
1993
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| Schriftenreihe: | [Berliner geowissenschaftliche Abhandlungen / A]
152 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 92 S. Ill., graph. Darst., Kt. |
| ISBN: | 3927541710 |
Internformat
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Datensatz im Suchindex
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| adam_text | Titel: Tectonic development of the Rukwa Rift Basin in SW Tanzania
Autor: Mbede, Evelyne Isaac
Jahr: 1993
TABLE OF CONTENTS
1. INTRODUCTION.....................................................................................................10
1.1 Background..................................................................................................10
1.1.1 The concept of rifting.......................................................................10
1.1.2 The principle of isostasy...................................................................11
1.2. Location and accessibility...........................................................................12
1.3 Physiography................................................................................................13
1.4 Climate and vegetation................................................................................14
1.5 Social-economical features...........................................................................14
1.6 Previous investigations................................................................................14
1.7 Scope of this study.......................................................................................16
2. METHODS................................................................................................................18
2.1 Introductions................................................................................................18
2.2 Geophysical methods...................................................................................18
2.2.1 Gravity methods..............................................................................18
2.2.2 Seismic reflection methods...............................................................18
2.3 Field methods...............................................................................................19
2.3.1 Landsat Imagery..............................................................................19
2.3.2 Maps used.......................................................................................19
2.3.3 Structural data collection.................................................................21
2.3.4 Sampling for fission track dating......................................................21
2.4 Laboratory methods....................................................................................21
2.4.1 Petrography.....................................................................................22
2.4.2 Mineral separation (apatite concentration)........................................22
2.4.3 Apatite fission track dating...............................................................23
2.4.4 Preparation of samples for EDM......................................................25
2.4.5 Counting of fission tracks.................................................................25
2.4.6 Track lengths measurement..............................................................25
3. GEOLOGY AND STRATIGRAPHY 27
3.1 Introduction.................................................................................................27
3.2 Precambrian.................................................................................................27
3.3 Karoo Super Group.....................................................................................27
3.4 The Red Sandstone Group..........................................................................29
3.5 The Lake Beds..............................................................................................30
4. GEOPHYSICAL DATA INTERPRETATION 31
4.1 Gravity data interpretation.........................................................................31
4.2 Seismic data interpretation.........................................................................32
4.2.1 Stratigraphie sequences....................................................................32
4.2.2 Structural interpretation...................................................................37
4.3 Estimation of extension................................................................................37
5. ANALYSIS OF FAULTS AND FRACTURE PATTERNS 40
5.1 Introduction.................................................................................................40
5.2 The morphology of faults flanking Rukwa Rift 40
5.2.1 General............................................................................................40
5.2.2 Morphological description...............................................................41
5.3 Analysis of faults and fracture planes.........................................................43
5.3.1 Faults and fractures of Lupa Scarp...................................................43
5.3.2 Faults and fractures of Ufipa Scarp..................................................43
5.3.3 Faults of Galula coal-field and Songwe Basin...................................45
5.4 Chronology of faulting.................................................................................47
6. TECTONIC AND BASEMENT SUBSIDENCE OF IVUNA WELL.....................49
6.1 Introduction.................................................................................................49
6.2 The backstripping program.........................................................................51
6.3 Results of backstripping..............................................................................52
6.4 The error analysis........................................................................................54
6.5 Estimation of extension factor (ß) from subsidence curves........................55
7. APATITE FISSION TRACK DATING...................................................................57
7.1 Introduction.................................................................................................57
7.2 Apatite fission track dating results..............................................................58
7.3 Interpretation of fission track dating results..............................................60
7.4 The present geothermal gradient................................................................63
7.5 Apatite fission track stratigraphy...............................................................64
7.6 Conclusions..................................................................................................64
8. BASIN MODELLING..............................................................................................65
8.1 Introduction.................................................................................................65
8.2 The kinematic and isostatic model for lithospheric extension....................65
8.3 Modelling of the Rukwa Basin....................................................................67
8.4 comparison of modelling results and observations.....................................69
9. STRUCTURAL EVOLUTION.................................................................................73
10. BASIN S ECONOMIC CONSIDERATIONS........................................................74
11. DISCUSSIONS AND CONCLUSIONS.................................................................76
12. REFERENCES........................................................................................................77
13. APPENDIX..............................................................................................................92
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| id | DE-604.BV008213472 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T17:16:27Z |
| institution | BVB |
| isbn | 3927541710 |
| language | English |
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| spelling | Mbede, Evelyne Isaac Verfasser aut Tectonic development of the Rukwa Rift Basin in SW Tanzania Evelyne Isaac Mbede Berlin Fachber. Geowiss., TU Berlin 1993 92 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier [Berliner geowissenschaftliche Abhandlungen / A] 152 Zugl.: Berlin, Techn. Univ., Diss., 1993 Tektonik (DE-588)4059351-4 gnd rswk-swf Tansania Südwest (DE-588)4472351-9 gnd rswk-swf Lake-Rukwa-Rift (DE-588)4385424-2 gnd rswk-swf Lake-Rukwa-Gebiet (DE-588)4117145-7 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Lake-Rukwa-Gebiet (DE-588)4117145-7 g Tektonik (DE-588)4059351-4 s DE-604 Tansania Südwest (DE-588)4472351-9 g Lake-Rukwa-Rift (DE-588)4385424-2 g A] [Berliner geowissenschaftliche Abhandlungen 152 (DE-604)BV000014093 152 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005421642&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Mbede, Evelyne Isaac Tectonic development of the Rukwa Rift Basin in SW Tanzania Tektonik (DE-588)4059351-4 gnd |
| subject_GND | (DE-588)4059351-4 (DE-588)4472351-9 (DE-588)4385424-2 (DE-588)4117145-7 (DE-588)4113937-9 |
| title | Tectonic development of the Rukwa Rift Basin in SW Tanzania |
| title_auth | Tectonic development of the Rukwa Rift Basin in SW Tanzania |
| title_exact_search | Tectonic development of the Rukwa Rift Basin in SW Tanzania |
| title_full | Tectonic development of the Rukwa Rift Basin in SW Tanzania Evelyne Isaac Mbede |
| title_fullStr | Tectonic development of the Rukwa Rift Basin in SW Tanzania Evelyne Isaac Mbede |
| title_full_unstemmed | Tectonic development of the Rukwa Rift Basin in SW Tanzania Evelyne Isaac Mbede |
| title_short | Tectonic development of the Rukwa Rift Basin in SW Tanzania |
| title_sort | tectonic development of the rukwa rift basin in sw tanzania |
| topic | Tektonik (DE-588)4059351-4 gnd |
| topic_facet | Tektonik Tansania Südwest Lake-Rukwa-Rift Lake-Rukwa-Gebiet Hochschulschrift |
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