Abstract
This work reports remote sensing aided identification of salt deposition and remobilization within a sub-rounded structure with approximately equant dimensions in the Mandawa Basin. A calculated surface flow direction has revealed the sub-rounded structure from Shuttle Radar Topography Mission—Digital Elevation Model (SRTM DEM) data. Internally, the body contains several structural highs and lows reflected by multiple peaks and troughs displayed by profiles drawn across the body. Seismic interpretation results confirmed these structural highs and lows, and they conform to salt build-ups (salt pillows and domes) and sedimentary minibasins, respectively. Seismic work, a follow-up investigation of the remote sensing findings, involved qualitative interpretation of 24 seismic profiles, 7 of which were chosen to represent the findings. East Lika 1 well stratigraphy was used to assign the age of the studied interval, and confirm that features of interest are associated with salt deposition and remobilization. Moreover, the East Lika 1 well tie corroborated that the interpreted salt deposition and the associated build-ups are within the Nondwa Formation of the Pindiro Group. Remote sensing observation, coupled with seismic interpretation, has revealed that the Mandawa salt basin is more extensive than reported before. Oil seeps, which are potential indicators of a working petroleum system, have been reported in the Mandawa Basin. One of these seeps is adjacent to a mapped salt dome. This observation probably indicates the influence of salt tectonics in the Mandawa petroleum system. Further work on a better quality seismic dataset may help resolve the problem of hydrocarbon whereabouts as far as the influence of salt tectonics is considered.
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References
Becker, M. W. (2006). Potential for satellite remote sensing of ground water. Groundwater, 44, 306–318.
Belenitskaya, G. A. (2016). Salt tectonics at the margins of young oceans. Geotectonics, 50, 244–256.
Bhaskar, A. S., & Kumar, R. B. (2011). Remote sensing of coastal geomorphology to understand river migration in the Thengapatnam area, southern India. International Journal of Remote Sensing, 32, 5287–5301.
Bussert, R., Heinrich, W. D., & Aberhan, M. (2009). The Tendaguru Formation (Late Jurassic to Early Cretaceous, southern Tanzania): Definition, palaeoenvironments, and sequence stratigraphy. Fossil Record, 12, 141–174.
Didas, M. M. (2016). Geophysical investigation of the subsurface structures of the Mandawa Basin, southeast coastal Tanzania. M.Sc. thesis, University of Dar es Salaam. 155 pp.
dos Reis, R. P., Pimentel, N., Fainstein, R., Reis, M., & Rasmussen, B. (2017). Influence of salt diapirism on the basin architecture and hydrocarbon prospects of the Western Iberian Margin. In Permo-Triassic Salt Provinces of Europe, North Africa and the Atlantic Margins (pp. 313–329). Elsevier.
Emanuel, A., Kasanzu, C. H., & Kagya, M. (2020). Geochemical characterization of hydrocarbon source rocks of the Triassic-Jurassic time interval in the Mandawa basin, southern Tanzania: Implications for petroleum generation potential. South African Journal of Geology, 2020(123), 587–596.
Fossum, K., Dypvik, H., Haid, M. H., Hudson, W. E., & van den Brink, M. (2020). Late Jurassic and Early Cretaceous sedimentation in the Mandawa Basin, coastal Tanzania. Journal of African Earth Sciences, 174, 104013.
Ganapuram, S., Kumar, G. V., Krishna, I. M., Kahya, E., & Demirel, M. C. (2009). Mapping of groundwater potential zones in the Musi basin using remote sensing data and GIS. Advances in Engineering Software, 40, 506–518.
Godson, G. (2017). Characterization of Triassic hydrocarbon source rocks of the Mandawa basin, Tanzania (Doctoral dissertation, The University of Dodoma).
Harding, R., & Huuse, M. (2015). Salt on the move: Multi stage evolution of salt diapirs in the Netherlands North Sea. Marine and Petroleum Geology, 61, 39–55.
Hewson, R., Mshiu, E., Hecker, C., van der Werff, H., van Ruitenbeek, F., Alkema, D., & van der Meer, F. (2020). The application of day and night time ASTER satellite imagery for geothermal and mineral mapping in East Africa. International Journal of Applied Earth Observation and Geoinformation, 85, 101991.
Hudson, W. (2011). The geological evolution of the petroleum prospective Mandawa Basin southern coastal Tanzania (Doctoral dissertation, Trinity College Dublin).
Hudson, W. E., & Nicholas, C. J. (2014). The Pindiro Group (Triassic to Early Jurassic Mandawa Basin, southern coastal Tanzania): Definition, palaeoenvironment, and stratigraphy. Journal of African Earth Sciences, 92, 55–67.
Ielp, A., Ventra, D., & Ghinassi, M. (2016). Deeply Channeled Precambrian rivers: Remote sensing and outcrop evidence from the 1.2 GA Stoer Group of NW Scotland. Precambrian Research, 281, 291–311.
Jackson, M. P., & Hudec, M. R. (2017). Salt tectonics: Principles and practice. Cambridge University Press.
Jackson, M. P. A., & Talbot, C. J. (1991). A Glossary of Salt Tectonics. Univ. Tex. Austin Bur. Econ. Geol. Circ. 91–4 (44 pp).
Jackson, M. P., Vendeville, B. C., & Schultz-Ela, D. D. (1994). Structural dynamics of salt systems. Annual Review of Earth and Planetary Sciences, 22, 93–117.
Jaiswal, R. K., Mukherjee, S., Krishnamurthy, J., & Saxena, R. (2003). Role of remote sensing and GIS techniques for generation of groundwater prospect zones towards rural development—an approach. International Journal of Remote Sensing, 24, 993–1008.
Kazimoto, E. O., & Mshiu, E. E. (2020). Reconnaissance assessment of the Stenian-Tonian granitoids of southern Tanzania for metal resources by using geological remote sensing and geochemical techniques. Geochemistry, 80, 125533.
Kent, P. E., Hunt, J. A., & Johnstone, D. W. (1971). The geology and geophysics of coastal Tanzania. Natural Environment Research Council, Institute of Geological Sciences, Geophysical Paper, 6, 1–101.
Kiswaka, E. B., & Felix, M. (2020). Permo-Triassic sedimentary fills and tectonic phases off Mid Norway: Seismic investigation of the Trøndelag Platform. Norwegian Journal of Geology, 100, 2020. https://doi.org/10.17850/njg100-2-3
Kreuser, T., Wopfner, H., Kaaya, C. Z., Markwork, S., Semkiwa, P. M., & Aslanidis, P. (1990). Depositional evolution of Permo-Triassic Karoo basins in Tanzania with reference to their economic potential. Journal of African Earth Sciences, 10, 151–167.
Macgregor, D. S. (1993). Relationships between seepage, tectonics and subsurface petroleum reserves. Marine and Petroleum Geology, 10, 606–619.
Mohr, M., Kukla, P. A., Urai, J. L., & Bresser, G. (2005). Multiphase salt tectonic evolution in NW Germany: Seismic interpretation and retro-deformation. International Journal of Earth Sciences, 94, 917–940.
Peel, F. J. (2014). How do salt withdrawal minibasins form? Insights from forward modelling, and implications for hydrocarbon migration. Tectonophysics, 630, 222–235.
Santos, M. G., Hartley, A. J., Mountney, N. P., Peakall, J., Owen, A., Merino, E. R., & Assine, M. L. (2019). Meandering rivers in modern desert basins: Implications for channel planform controls and prevegetation rivers. Sedimentary Geology, 385, 1–14.
Shahid, S., Nath, S., & Roy, J. (2000). Groundwater potential modelling in a soft rock area using a GIS. International Journal of Remote Sensing, 21, 1919–1924.
Stewart, S. A. (2006). Implications of passive salt diaper kinematics for reservoir segmentation by radial and concentric faults. Marine and Petroleum Geology, 23, 843–853.
Trusheim F. (1987). Halokinesis. In Structural Geology and Tectonics Encyclopedia of Earth Science. Springer https://doi.org/10.1007/3-540-31080-0_49
van der Meer, F., Hecker, C., van Ruitenbeek, F., van der Werff, H., de Wijkerslooth, C., & Wechsler, C. (2014). Geologic remote sensing for geothermal exploration: A review. International Journal of Applied Earth Observation and Geoinformation, 33, 255–269.
Wagner, B. H. (2010). An analysis of salt welding (Doctoral dissertation). University of Texas at Austin, 236 pp.
Wagner, B. H., & Jackson, M. P. A. (2011). Viscous flow during salt welding. Tectonophysics, 510, 309–326.
Warsitzka, M., Kley, J., & Kukowski, N. (2013). Salt diapirism driven by differential loading—Some insights from analogue modelling. Tectonophysics, 591, 83–97.
Wopfner, H. (2002). Tectonic and climatic events controlling deposition in Tanzanian Karoo basins. Journal of African Earth Sciences, 34, 167–177.
Zumsprekel, H., & Prinz, T. (2000). Computer-enhanced multispectral remote sensing data: A useful tool for the geological mapping of Archean terrains in (semi) arid environments. Computers & Geosciences, 26, 87–100.
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Comments and suggestions from Gabriela Avella and two other anonymous reviewers improved the submitted manuscript to be considered for publication. We thank Thomas Mugwe for his contribution, which led to the improvement of the geological map of the study area.
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Mshiu, E.E., Kiswaka, E.B. & Mohamed, B. Extensive salt deposition and remobilization influencing petroleum prospectivity of the Mandawa Basin: remote sensing manifestation confirmed by seismic results. J. Sediment. Environ. 7, 147–162 (2022). https://doi.org/10.1007/s43217-022-00090-x
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DOI: https://doi.org/10.1007/s43217-022-00090-x