Late Cenozoic tectonics of the Red River Fault Zone, Vietnam, in the light of geomorphic studies

Zuchiewicz, Witold; Cường, Nguyễn Quốc; Zasadni, Jerzy; Yêm, Nguyễn Trọng

doi:10.1016/j.jog.2011.10.008

Cited by 41 publications

(25 citation statements)

References 18 publications

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“…The fresh geomorphologic appearance of the faults under these intense erosive conditions demonstrates that these faults are active [18]. At present, there is a contradiction between the active fault slip rate calculated from GPS and that calculated according to the geologic data in North Vietnam [1,4,5,19,31,32,34,35]. In the Cenozoic, the Hoa-Binh area is the result of extrusion of IndochinaSunderland block along the Red River fault zone.…”

Section: Tectonic Settingmentioning

confidence: 99%

“…The two major ones are located NE and SW of the Red River. Right lateral strikeslip offsets along these faults are determined by analyzing tributaries, stream channels, Quaternary alluvial fans, and river valleys on Landsat and SPOT images, on detailed topographical maps, and by field observations [1,18,34]. The fresh geomorphologic appearance of the faults under these intense erosive conditions demonstrates that these faults are active [18].…”

Section: Tectonic Settingmentioning

confidence: 99%

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Active fault segmentation and seismic hazard in Hoa-Binh reservoir, Vietnam

et al. 2013

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Section: Tectonic Settingmentioning

confidence: 99%

Section: Tectonic Settingmentioning

confidence: 99%

Active fault segmentation and seismic hazard in Hoa-Binh reservoir, Vietnam

et al. 2013

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“…The ASRRSZ is outlined by a prominent relief and by discontinuous metamorphic core complexes (Burchfield et al, ; Leloup et al, ; Searle et al, ; Tapponnier et al, ). The core complexes are confined by faults that accommodated moderate Late Neogene right‐lateral slip induced by eastward escape of the South China Block relative to Indochina (Allen et al, ; Fyhn & Phach, ; Rangin et al, ; Replumaz et al, ; Schoenbohm et al, ; To et al, ; Trinh et al, ; Zuchiewicz et al, ). Earlier, the shear zone took up left‐lateral shearing in response to the southeastward escape of Indochina relative to South China (Leloup et al, , ; Tapponnier et al, ).…”

Section: Geological Settingmentioning

confidence: 99%

Linking Paleogene Rifting and Inversion in the Northern Song Hong and Beibuwan Basins, Vietnam, With Left‐Lateral Motion on the Ailao Shan‐Red River Shear Zone

Fyhn

Cuong²,

Hoang³

et al. 2018

Tectonics

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Extrusion tectonics forced by plate collisions shape continents not only through lateral terrain displacement and mountain building but also through massive rifting and basin development. The rift system underneath the Gulf of Tonkin, Vietnam, constitutes a world-class example of how extrusion tectonics drives continental rifting and transtensional basin development. Rifting and the Song Hong and Beibuwan Basin evolution are compared with the development of the Ailao Shan-Red River Shear Zone (ASRRSZ) that accommodated the extrusion of Indochina forced by the Indian-Eurasia collision. Rifting occurred during later Eocene-Late Oligocene time forced by ASRRSZ left-lateral shearing. Latest Oligocene-earliest Miocene transpression and inversion brought rifting to a halt, after which left-lateral shearing decreased. Paleogene rift systems extended along the trail of the ASRRSZ now outlined by lower to midcrustal metamorphic core complexes. Most of these rift systems were probably inverted and removed during the latest Oligoceneearliest Miocene, however. The metamorphic core complexes are suggested to represent the lower to midcrustal roots of these transtensional rift basins exhumed by inversion. Rift termination in the northern Gulf of Tonkin and exhumation of the metamorphic core complexes coincided with cessation of Paleogene rifting along the western South China Sea, and a common causal mechanism is speculated. Recent discussions of the ASRRSZ concern four major aspects: (1) the timing of motion, (2) the crustal architecture of the shear zone, (3) the amount of lateral offset, and consequently, (4) the regional plate tectonic implications of the shear zone.

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“…Slip rates on the RRF's fault have been estimated mainly on long (millions of years) and very short (GPS, decades) timescales (Table ). Dividing the largest dextral offsets by inferred times of onset between 2 and 10 Ma yields long‐term geological rates of 2–5 mm/year along the central RRF zone (Allen et al, ; Replumaz et al, ; Schoenbohm et al, ) and 5–8 mm/year along its southern segment in Vietnam (Zuchiewicz et al, ). Decadal strike‐slip rates calculated from GPS profiles across the RRF zone are more precise, and range between 0.2 and 2 mm/year for all three segments (Cong & Feigl, ; Feigl et al, ; Hao et al, ; Shen et al, ; To et al, ; Y. Wang et al, ; Zhao et al, ; Zheng et al, ; Zuchiewicz & Cuong, ).…”

Section: Existing Studies Of Neotectonics and Active Tectonics On Thementioning

confidence: 99%

“…However, the millennial slip rate and earthquake recurrence behavior of the RRF are poorly constrained (Li et al, ; Shi, Weldon, et al, ). Slip rates averaged over millions of years have been estimated based on maximum fault offsets across large streams and inferred onset of offsets between 10 and 2 Ma (Allen et al, ; Replumaz et al, ; Schoenbohm et al, ; Zuchiewicz et al, ). Global Positioning System (GPS) velocities obtained around the RRF and adjacent regions since ~1998 provide better constraints on the RRF's decadal slip rate, mainly across the fault's central segment in China (Hao et al, ; Shen et al, ; Wang et al, ; Zhao et al, ; Zheng et al, ) and southern segment in Vietnam (Cong & Feigl, ; Feigl et al, ; To et al, ; Zuchiewicz & Cuong, ).…”

Section: Introductionmentioning

confidence: 99%

Slip Rate and Rare Large Prehistoric Earthquakes of the Red River Fault, Southwestern China

Shi

Sieh

Weldon

et al. 2018

Geochem Geophys Geosyst

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The Red River fault is an important plate‐boundary fault that has played a significant role in the tectonic evolution of northern Southeast Asia. Nonetheless, its millennial slip rate and earthquake recurrence behavior are poorly constrained. Analysis of 5‐ and 30‐m‐resolution topography reveals right‐lateral offsets that range from 60 m to 24 km along its “mid‐valley” trace but none along its “range‐front” trace. This strongly implies that the range‐front fault has experienced very little lateral slip for millions of years, even though it is the geologically more significant fault. Stratigraphic and geomorphologic investigation of the mid‐valley fault within a small channel near Gasa yields a 14C‐based slip rate of 1.1 ± 0.4 mm/year, averaged over the last 30,000–50,000 years. Three‐dimensional paleoseismic excavation of colluvial wedges produced by collapse of shutter ridges into the channel shows that sudden dextral ruptures of the fault have occurred every 6,000 ± 1,000 years over the past 30,000 years. Two and possibly three large surface ruptures occurred in the past 13,500 years, and two previous ones occurred at 18,500 and 24,500 calendar years before present (cal yr BP). The oldest one in the section likely occurred at or a few 1,000 years before 29,800 ± 2,000 cal yr BP. The 3‐D extent of the colluvial wedges implies dextral offsets of ≥4.5 m, amounts that are consistent with the slip rate and recurrence interval. The evidence for low slip rate and rare large seismic events is consistent with the lack of large historical earthquakes along the fault and the low Global Positioning System (GPS)‐derived slip rate, but is much lower than widely cited geological slip rates.

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Late Cenozoic tectonics of the Red River Fault Zone, Vietnam, in the light of geomorphic studies

Cited by 41 publications

References 18 publications

Active fault segmentation and seismic hazard in Hoa-Binh reservoir, Vietnam

Active fault segmentation and seismic hazard in Hoa-Binh reservoir, Vietnam

Linking Paleogene Rifting and Inversion in the Northern Song Hong and Beibuwan Basins, Vietnam, With Left‐Lateral Motion on the Ailao Shan‐Red River Shear Zone

Slip Rate and Rare Large Prehistoric Earthquakes of the Red River Fault, Southwestern China

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