Seismic profiles, migration velocities and tomographic inversion results of the deep reflection profiles in the central South China

Overview

The following set of data and scripts are meant to accompany the paper:

Jiang, W. B., Wang, Q., Zhang, Y.Q., Dong, S.W., Ruan, Y.Q., Cui, J.J., Kuang, Z.Y., Paleoproterozoic collision to Mesozoic crustal reworking in central South China: evidence from borehole data and seismic crustal structure, Submitted to JGR: Solid Earth

The data and scripts are intended to reproduce seismic profiles, migration velocities, and tomographic inversion results shown in the paper.

The repository contains five directories:

./01_Seismic_Profiles/ -> Four seismic profiles shown in the manuscript. (1) psdm_line01.sgy (Figure 7a); (2) psdm_line02.sgy (Figure 7b); (3) SCB_PSDM.segy (Figure 9); (4) SCB_PSTM.segy (Figure S5a).

./02_Tomographic_Data_Velocity/ -> picked_traveltimes.tt, picked traveltime for the normal shots (Figure 6a). The file contains location of shots and receivers, picked traveltimes; Tomo_inv.mdl, P-wave velocity model derived from first-arrival traveltime tomography (Figure 8a); Tomo_Fx1_Fz1_ray.mdl, Ray density distribution calculated using the Vp model (Figure 8b); traveltime_data_FILE_FORMAT.pdf, this pdf file describes the format of *.tt file; mdl_data_FILE_FORMAT.pdf,  this pdf file describes the format of *.mdl file.

./03_Migration_Velocity_Models/ -> Migration velocity models to produce prestack time migration profile and prestack depth migration profile. VEL_RMS.mdl, RMS velocity field used in prestack time migration (Figure S4a); VEL_INTERVAL.mdl, Interval velocity field used in prestack depth migration (Figure S4b).

./04_Bouguer_Gravity_Anomaly/ -> gravity_data.grv, the Bouguer gravity anomaly data used in 2-D gravity modelling; gravity_data_FILE_FORMAT.pdf, this pdf file describes the format of *.grv file.

./05_Scripts/ -> Matlab scripts to reproduce seismic profiles, migration velocities, and tomography inversion results shown in the paper.