Interactive comment on “Dating and morphostratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)” by Raphaël Normand et al.

2019 ◽  
Author(s):  
Julius Jara Muñoz
Keyword(s):  
Subduction Zone ◽  
Makran Subduction Zone ◽  
Marine Terraces

scholarly journals Dating and morpho-stratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)

2019 ◽  
Vol 7 (1) ◽  
pp. 321-344 ◽  
Author(s):  
Raphaël Normand ◽  
Guy Simpson ◽  
Frédéric Herman ◽  
Rabiul Haque Biswas ◽  
Abbas Bahroudi ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Active Surface ◽  
Optically Stimulated Luminescence ◽  
Uplift Rate ◽  
Makran Subduction Zone ◽  
Megathrust Earthquakes ◽  
Surface Uplift ◽  
Marine Terraces ◽  
Uplift Rates ◽  
East West

Abstract. The western part of the Makran subduction zone (Iran) is currently experiencing active surface uplift, as attested by the presence of emerged marine terraces along the coast. To better understand the uplift recorded by these terraces, we investigated seven localities along the Iranian Makran and we performed radiocarbon, 230Th∕U and optically stimulated luminescence (OSL) dating of the layers of marine sediments deposited on top of the terraces. This enabled us to correlate the terraces regionally and to assign them to different Quaternary sea-level highstands. Our results show east–west variations in surface uplift rates mostly between 0.05 and 1.2 mm yr−1. We detected a region of anomalously high uplift rate, where two MIS 3 terraces are emerged, but we are uncertain how to interpret these results in a geologically coherent context. Although it is presently not clear whether the uplift of the terraces is linked to the occurrence of large megathrust earthquakes, our results highlight rapid surface uplift for a subduction zone context and heterogeneous accumulation of deformation in the overriding plate.

scholarly journals Dating and morphostratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)

2018 ◽  
Author(s):  
Raphaël Normand ◽  
Guy Simpson ◽  
Frédéric Herman ◽  
Rabiul Haque Biswas ◽  
Abbas Bahroudi ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Surface Deformation ◽  
Late Quaternary ◽  
Makran Subduction Zone ◽  
Megathrust Earthquakes ◽  
Surface Uplift ◽  
Marine Terraces ◽  
Uplift Rates ◽  
Tectonically Active ◽  
East West

Abstract. The western part of the Makran subduction zone (Iran) has not experienced a great megathrust earthquake in recent human history, yet, the presence of emerged marine terraces along the coast indicates that the margin has been tectonically active during at least the late Quaternary. To better understand the surface deformation of this region, we mapped the terraces sequences of seven localities along the Iranian Makran. Additionnaly, we performed radiocarbon, 230Th/U and optically stimulated luminescence (OSL) dating of the layers of marine sediments deposited on top of the terraces. This enabled us to correlate the terraces regionally and to assign them to different Quaternary sea level highstands. Our results show east-west variations in surface uplift rates mostly between 0.05 and 1.2 mm y−1. We detected a region of anomalously high uplift rate, where two MIS 3 terraces are emerged, yet we are uncertain how to insert these results in a geologically coherent context. Although it is presently not clear whether the uplift of the terraces is linked with the occurrence of large megathrust earthquakes, our results highlight heterogeneous accumulation of deformation in the overriding plate.

Supplementary material to "Dating and morphostratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)"

2018 ◽  
Author(s):  
Raphaël Normand ◽  
Guy Simpson ◽  
Frédéric Herman ◽  
Rabiul Haque Biswas ◽  
Abbas Bahroudi ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Makran Subduction Zone ◽  
Marine Terraces ◽  
Supplementary Material

scholarly journals Dating and morpho-stratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)

2019 ◽  
Author(s):  
Raphaël Normand ◽  
Guy Simpson ◽  
Frederic Herman ◽  
Rabiul Biswas ◽  
Abbas Bahroudi ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Makran Subduction Zone ◽  
Marine Terraces

scholarly journals New high-resolution 2D seismic imaging of fluid escape structures in the Makran subduction zone

China Geology ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 1-14
Author(s):  
Bin Liu ◽  
◽  
Jiang-xin Chen ◽  
Syed Waseem Haider ◽  
Xi-guang Deng ◽  
...  
Keyword(s):  
High Resolution ◽  
Subduction Zone ◽  
Seismic Imaging ◽  
Makran Subduction Zone

Structure of the Makran subduction zone from wide-angle and reflection seismic data

2000 ◽  
Vol 329 (1-4) ◽  
pp. 171-191 ◽  
Author(s):  
C. Kopp ◽  
J. Fruehn ◽  
E.R. Flueh ◽  
C. Reichert ◽  
N. Kukowski ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Seismic Data ◽  
Wide Angle ◽  
Makran Subduction Zone ◽  
Reflection Seismic

scholarly journals Neogene to Quaternary uplift history along the passive margin of the northeastern Arabian Peninsula, eastern Al Hajar Mountains, Oman

2018 ◽  
Vol 90 (2) ◽  
pp. 418-434 ◽  
Author(s):  
Daniel Moraetis ◽  
Frank Mattern ◽  
Andreas Scharf ◽  
Gianluca Frijia ◽  
Timothy M. Kusky ◽  
...  
Keyword(s):  
Arabian Peninsula ◽  
Outer Wall ◽  
Passive Margin ◽  
Arabian Plate ◽  
Makran Subduction Zone ◽  
Marine Terraces ◽  
Topographic Survey ◽  
Uplift Rates ◽  
History Of ◽  
Uplift History

AbstractThis work explores the uplift history of the best exposed marine terraces in the northeastern Arabian Peninsula (eastern Al Hajar Mountains). A multidisciplinary approach was employed, including a topographic survey, 14C dating, thin section studies, and scanning electron microscopy analyses. Six distinctive marine terraces with widths ranging from tenth of meters to kilometers and elevations from 5 to ~400 m were studied. These terraces record an along-strike heterogeneous uplift history, while they show temporally variable uplift rates ranging between 0.9 to 6.7 mm/yr, which correlates well with other published uplift rates of marine terraces of the eastern Arabian Peninsula. We attribute the variable uplift along strike of the terraces, to a combination of uplift mechanisms: (1) during early to mid-Miocene along deep-rooted reverse faults that bound large crustal-scale blocks, (2) Pliocene or post-Pliocene uplift on the outer wall of the forebulge of the lower Arabian Plate as it bends to enter the Zagros-Makran subduction zone, and (3) a possible slowdown of subduction for the past ~40 ka.

Tsunami hazard evaluation for Kuwait and Arabian Gulf due to Makran Subduction Zone and Subaerial landslides

2017 ◽  
Vol 93 (S1) ◽  
pp. 127-152 ◽  
Author(s):  
Panon Latcharote ◽  
Khaled Al-Salem ◽  
Anawat Suppasri ◽  
Tanuspong Pokavanich ◽  
Shinji Toda ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Arabian Gulf ◽  
Tsunami Hazard ◽  
Hazard Evaluation ◽  
Makran Subduction Zone
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