WHAT IS THE MAIN FACTOR CONTROLLING THE SUKADANA BASALT IN THE SUMATRA BACK ARC?
https://doi.org/10.5800/GT-2023-14-5-0723
Abstract
The mechanism of the presence of the Sukadana basalt in the back arc of Sumatra is still an enigma, especially since the Sukadana basalt has a wide coverage area in Sumatra Island and even the Sunda Arc. In this study, we used the published research data as the main contributor to an in-depth analysis to determine the mechanism of the presence of Sukadana basalt in the back arc. This study is supported by other studies from different regions around the world. These strengthen our conclusion that the emergence of Sukadana basalt on the surface is controlled by extensional deformations associated with the northwest-southeast-trending normal fault, which are formed by the mechanism of gravitational subsidence due to the movement of the Sumatra fault. In this study we suppose that the Nishimura fracture is a sinistral strike-slip fault as it is consistent with the Riedel shear model.
Supporting agencies: This publication is a part of the author’s doctoral study. The study was financially supported by the Sumatra Institute of Technology involving the doctoral degree scholarship scheme. ACKNOWLEDGMENTS We are grateful to Sukadana society, ITB staff, Google, ESRI, QGIS developer, Lampung Province government, and geological students for their kind assistance during the field. We would also like to express our appreciation to the journal editor and reviewers for valuable and insightful feedback. The constructive comments have significantly contributed to the improvement of our manuscript.
About the Authors
L. P. Siringoringo
Bandung Institute of Technology; Sumatra Institute of Technology
Indonesia
Indonesia
Bandung 40132
South Lampung 35365
B. Sapiie
Bandung Institute of Technology
Indonesia
Indonesia
Bandung 40132
A. Rudyawan
Bandung Institute of Technology
Indonesia
Indonesia
Bandung 40132
I. G.B.E. Sucipta
Bandung Institute of Technology
Indonesia
Indonesia
Bandung 40132
References
1. Ayalew D., Jung S., Romer R.L., Garbe-Schönberg D., 2018. Trace Element Systematics and ND, SR and Pb Isotopes of Pliocene Flood Basalt Magmas (Ethiopian Rift): A Case for Afar Plume-Lithosphere Interaction. Chemical Geology 493, 172–188. https://doi.org/10.1016/j.chemgeo.2018.05.037.
2. Barber A., Crow M., Milson J. (Eds), 2005. Sumatra: Geology, Resources and Tectonic Evolution. Vol. 31. Geological Society of London, 290 p. https://doi.org/10.1144/GSL.MEM.2005.031.
3. Chen Z., Schellart W.P., Strak V., Duarte J.C., 2016. Does Subduction-Induced Mantle Flow Drive Backarc Extension? Earth and Planetary Science Letters 441, 200–210. https://doi.org/10.1016/j.epsl.2016.02.027.
4. De Souza Z.S., Vasconcelos P.M., Knesel K.M., da Silveira Dias L.G., Roesner E.H., Cordeiro de Farias P.R., de Morais Neto J.M., 2013. The Tectonic Evolution of Cenozoic Extensional Basins, Northeast Brazil: Geochronological Constraints from Continental Basalt 40Ar/39Ar Ages. Journal of South American Earth Sciences 48, 159–172. https://doi.org/10.1016/j.jsames.2013.09.008.
5. Faccenna C., Becker T.W., Lallemand S., Lagabrielle Y., Funiciello F., Piromallo C., 2010. Subduction-Triggered Magmatic Pulses: A New Class of Plumes? Earth and Planetary Science Letters 299 (1–2), 54–68. https://doi.org/10.1016/j.epsl.2010.08.012.
6. Harjono H., Diament M., Dubois J., Larue M., Zen M.T., 1991. Seismicity of the Sunda Strait: Evidence for Crustal Extension and Volcanological Implications. Tectonics 10 (1), 17–30. https://doi.org/10.1029/90TC00285.
7. Huchon P., Le Pichon X., 1984. Sunda Strait and Central Sumatra Fault. Geology 12 (11), 668–672. https://doi.org/10.1130/0091-7613(1984)12%3C668:SSACSF%3E2.0.CO;2.
8. Malod J.A., Karta K., Beslier M.O., Zen M.T., 1995. From Normal to Oblique Subduction: Tectonic Relationships between Java and Sumatra. Journal of Southeast Asian Earth Sciences 12 (1–2), 85–93. https://doi.org/10.1016/07439547(95)00023-2.
9. Nishimura S., Nishida J., Yokoyama T., Hehuwat F., 1986. Neo-Tectonics of the Strait of Sunda, Indonesia. Journal of Southeast Asian Earth Sciences 1 (2), 81–91. https://doi.org/10.1016/0743-9547(86)90023-1.
10. Pramumijoyo S., Sebrier M., 1991. Neogene and Quaternary Fault Kinematics around the Sunda Strait Area, Indonesia. Journal of Southeast Asian Earth Sciences 6 (2), 137–145. https://doi.org/10.1016/0743-9547(91)90106-8.
11. Pubellier M., Morley C.K., 2014. The Basins of Sundaland (SE Asia): Evolution and Boundary Conditions. Marine and Petroleum Geology 58 (B), 555–578. https://doi.org/10.1016/j.marpetgeo.2013.11.019.
12. Schellart W.P., Moresi L., 2013. A New Driving Mechanism for Backarc Extension and Backarc Shortening through Slab Sinking Induced Toroidal and Poloidal Mantle Flow: Results from Dynamic Subduction Models with an Overriding Plate. Journal of Geophysical Research: Solid Earth 118 (6), 3221– 3248. https://doi.org/10.1002/jgrb.50173.
13. Shahraki M., 2013. Dynamics of Mantle Circulation and Convection: The Signatures in the Satellite Derived Gravity Fields. Doctoral Thesis. Frankfurt, 250 p.
14. Soeria-Atmaja R., Maury R., Bougault H., Joron J., Bellon H., Hasanunddin D., 1986. Présence de Tholeiites d’Arrière-Arc Quatenariés en Indonésie: Les Basaltes de Sukadana (Sud de Sumatra). In: Actes de la 11e Réunion des Sciences de la Terre (Clermont-Ferrand), p. 168.
15. Susilohadi S., Gaedicke C., Djajadihardja Y., 2009. Structures and Sedimentary Deposition in the Sunda Strait, Indonesia. Tectonophysics 467 (1–4), 55–71. https://doi.org/10.1016/j.tecto.2008.12.015.
16. Wang Y., Santosh M., Luo Z., Hao J., 2015. Large Igneous Provinces Linked to Supercontinent Assembly. Journal of Geodynamics 85, 1–10. https://doi.org/10.1016/j.jog.2014.12.001.
17. Xue K., Schellart W.P., Strak V., 2022. Overriding Plate Deformation and Topography during Slab Rollback and Slab Rollover: Insights from Subduction Experiments. Tectonics 41 (2), e2021TC007089. https://doi.org/10.1029/2021tc007089.
18. Yan Q., Shi X., Metcalfe I., Liu S., Xu T., Kornkanitnan N., Sirichaiseth T., Yuan L., Zhang Y., Zhang H., 2018. Hainan Mantle Plume Produced Late Cenozoic Basaltic Rocks in Thailand, Southeast Asia. Scientific Reports 8, 2640. https://doi.org/10.1038/s41598-018-20712-7.
19. Zi J.W., Haines P.W., Wang X.C., Jourdan F., Rasmussen B., Halverson G.P., Sheppard S., Li C.F., 2019. Pyroxene 40Ar/39Ar Dating of Basalt and Applications to Large Igneous Provinces and Precambrian Stratigraphic Correlations. Journal of Geophysical Research: Solid Earth 124 (8), 8313–8330. https://doi.org/10.1029/2019JB017713.
Review
For citations:
Siringoringo L.P., Sapiie B., Rudyawan A., Sucipta I.G. WHAT IS THE MAIN FACTOR CONTROLLING THE SUKADANA BASALT IN THE SUMATRA BACK ARC? Geodynamics & Tectonophysics. 2023;14(5):0723. https://doi.org/10.5800/GT-2023-14-5-0723
Views:
472
Email this article 