Lianjun Li

Variable Oceanic Crust Accretion at a Slow‐Spreading Ridge: A V p /V s Ratio Evidence Across the Southwest Sub‐Basin of the South China Sea

Ye Yuan, Yuhan Li, Yongjian Yao, Minghui Zhao et autres

Abstract The opening of the Southwest Sub‐basin (SWSB) of the South China Sea was slow‐spreading and has been propagated toward the southwest. Yet, the structural variability and magmatic accretion process of the SWSB are still enigmatic. Here, utilizing a wide‐angle seismic profile …

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Estimating excess bound water content due to serpentinisation in mature slow-spreading oceanic crust using Vp/Vs

Lianjun Li, Jenny Collier, T. Henstock, Saskia Goes

Mature oceanic crust carries chemically bound water which may be released in subduction zones or delivered to the deep mantle. Estimating water content in slow-spreading crust is challenging due to its complex lithology, requiring both P- and S-wave seismic velocity (Vp and …

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Fluids from deep subducted sediments control the seismic behavior of the Lesser Antilles megathrust

Yaocen Pan, Nathalie Feuillet, C. Prigent, H. D. Carton et autres

Abstract At subduction zones, downgoing topographic features exert first-order structural and hydrologic effect on the plate boundary and the upper plate. Such process has been rarely documented by clear observations, especially at great depths, and it remains elusive how the altered structural …

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Downward continued ocean bottom seismometer data show continued hydrothermal evolution of mature oceanic upper crust

Lianjun Li, Jenny Collier, T. Henstock, Saskia Goes

Abstract Heat flow measurements indicate hydrothermal activity in oceanic crust continues at least for 65 m.y. after formation. Hydrothermal activity progressively fills cracks and pores with alteration products, which is expected to lead to a trend of increasing seismic velocities with age. …

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Supplemental Material: Downward continued ocean bottom seismometer data show continued hydrothermal evolution of mature oceanic upper crust

Lianjun Li, et al.

Discussion of the downward continuation of OBS data (Figs. S1–S6) and subsequential tomographic inversion of VoiLA Line 2/3 (Figs. S7–S18 and Tables S1–S3).

Supplemental Material: Downward continued ocean bottom seismometer data show continued hydrothermal evolution of mature oceanic upper crust

Lianjun Li, et al.

Discussion of the downward continuation of OBS data (Figs. S1–S6) and subsequential tomographic inversion of VoiLA Line 2/3 (Figs. S7–S18 and Tables S1–S3).

Evaluating SoJump.com as a tool for online behavioral research in China

Alessandro Del Ponte, Lianjun Li, Lina Ang, Noah Lim et autres

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Evidence for a higher porosity upper crust in the North Atlantic Ocean

Lianjun Li, Jenny Collier, T. Henstock, Saskia Goes

The most common way to estimate the porosity of the mature oceanic crust, and hence its contribution to geochemical exchange, is from the inversion of active source seismic data. Previous studies have suggested that hydrothermal activity effectively ceases in crust older than …

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An improved constrained velocity inversion algorithm for geological structures

Jing-Xuan Xiong, Zhenhua He, Le Li, Guamg-Ming He et autres

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Frontal accretionary wedge structure from seismic reflection imaging in the Lesser Antilles, Guadeloupe-Antigua sector

Lianjun Li, H. D. Carton, Nathalie Feuillet, Gaëlle Bénâtre et autres

The Lesser Antilles Subduction Zone (LASZ), forming the plate boundary between North and South American plates and the Caribbean plate, has not produced any recent large instrumentally recorded thrust earthquake. The 1843 earthquake event (~Mw 8.5) located offshore Guadeloupe is possibly subduction …

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The impacts of social comparison information on physical activity

Lianjun Li, David Frisvold, Suyong Song, Linnea A. Polgreen et autres

My dissertation focuses on changes in health-related behavior in react to information-based intervention. The first chapter analyzes the results of a field experiment to investigate the effects of comparative information on the daily number of steps taken of adults. The second chapter …

One-station wavefield back propagation for Mars quake detection

Nobuaki Fuji, Vaibhav Vijay Ingale, Lianjun Li, A. W. B. Jacob et autres