Ambient-Noise Cross-Correlation Functions and Shear-Wave Velocity Models Across the Lianhuashan Fault Zone, South China

This dataset supports the manuscript “Inherited upper-crustal architecture controls the structural localization of the Lianhuashan W–Sn metallogenic system.” It contains 7,684 vertical-component ambient-noise cross-correlation functions (NCFs) obtained from two temporary dense linear seismic arrays across the Lianhuashan Fault Zone in South China, including 5,460 NCFs for the JX1 array and 2,224 NCFs for the JX2 array. Station identifiers and geographic coordinates are provided for the 105 JX1 and 69 JX2 analysis locations. The NCFs were calculated using SeisNoise.jl in Julia. Continuous seismic records were divided into 12-hour windows with a 2-hour overlap, demeaned, detrended, band-pass filtered between 0.05 and 5 Hz, spectrally whitened, normalized, cross-correlated, and combined using phase-weighted stacking. The NCFs are provided in SAC format. The dataset also includes the final one-dimensional shear-wave velocity (Vs) profile models obtained by damped least-squares inversion of the double-beamforming-derived Rayleigh-wave phase-velocity dispersion curves using CPS330. The JX1 model contains 105 profiles whereas the JX2 model contains 68 profiles. Both released models span depths of 0–15 km at a sampling interval of 0.25 km. The Vs models are provided as whitespace-delimited text files with the columns longitude, latitude, depth (km), Vs (km/s), Vs standard deviation (km/s), and Vs variance. These data support reproduction and further evaluation of the ambient-noise double-beamforming measurements and the upper-crustal velocity models presented in the associated study.