@article{fdi:010081365,
  title = {{A} local lithospheric structure model for {V}ietnam derived from a high-resolution gravimetric geoid},
  author = {{V}u, {D}. {T}. and {B}onvalot, {S}ylvain and {B}ruinsma, {S}. and {B}ui, {L}. {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}igh-resolution {M}oho and lithosphere-asthenosphere boundary depth models for {V}ietnam and its surrounding areas are determined based on a recently released geoid model constructed from surface and satellite gravity data ({GEOID}_{LSC}_{C} model) and on 3{MODIFIER} {LETTER} {PRIMEMODIFIER} {LETTER} {PRIME} resolution topography data (mixed {SRTM} model). {A} linear density gradient for the crust and a temperature-dependent density for the lithospheric mantle were used to determine the lithospheric structure under the assumption of local isostasy. {I}n a first step, the impact of correcting elevation data from sedimentary basins to estimate {M}oho depth has been evaluated using {CRUST}1.0 model. {R}esults obtained from a test area where seismic data are available, which demonstrated that the sedimentary effect should be considered before the inversion process. {T}he geoid height and elevation-corrected sedimentary layer were filtered to remove signals originating below the lithosphere. {T}he resulting {M}oho and lithosphere-asthenosphere boundary depth models computed at 1{MODIFIER} {LETTER} {PRIME} resolution were evaluated against seismic data as well as global and local lithospheric models available in the study region. {T}hese comparisons indicate a consistency of our {M}oho depth estimation with the seismic data within 1.5 km in standard deviation for the whole {V}ietnam. {T}his new {M}oho depth model for the study region represents a significant improvement over the global models {CRUST}1.0 and {GEMMA}, which have standard deviations of 3.2 and 3.3 km, respectively, when compared to the seismic data. {E}ven if a detailed geological interpretation of the results is out of scope of this paper, a joint analysis of the obtained models with the high-resolution {B}ouguer gravity anomaly is finally discussed in terms of the main geological patterns of the study region. {T}he high resolution of our {M}oho and lithosphere-asthenosphere boundary depth models contribute to better constrain the lithospheric structure as well as tectonic and geodynamic processes of this region. {T}he differences in {M}oho depth visible in the northeast and southwest sides of the {R}ed {R}iver {F}ault {Z}one confirmed that the {R}ed {R}iver {F}ault {Z}one may be considered the boundary between two continental blocks: {S}outh {C}hina and {I}ndochina blocks. {H}owever, no remarkable differences in lithosphere-asthenosphere boundary depth were obtained from our results. {T}his suggests that the {R}ed {R}iver {F}ault {Z}one developed within the crust and remained a crustal fault.},
  keywords = {{G}eoid height ; {E}levation ; {S}ediment ; {G}ravity anomaly ; {M}oho depth ; {LAB} depth ; {G}ravity inversion ; {VIET} {NAM}},
  booktitle = {},
  journal = {{E}arth {P}lanets and {S}pace},
  volume = {73},
  numero = {1},
  pages = {92 [22 ]},
  year = {2021},
  DOI = {10.1186/s40623-021-01415-2},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081365},
}