Three-dimensional pre-stack depth migration velocity model from seismic reflection data at the Axial Volcano, Juan de Fuca Ridge

Version 1.0
Satish C. Singh, 2026, "Three-dimensional pre-stack depth migration velocity model from seismic reflection data at the Axial Volcano, Juan de Fuca Ridge", https://doi.org/10.18715/IPGP.2026.mnxcsld3, IPGP Research Collection, V1
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Description
This velocity volume was constructed for prestack depth migration of Axial-3D multi-channel seismic (MCS) data acquired during the NSF-funded cruise MGL1905. The velocity volume was derived from an existing high-resolution 3D tomographic velocity model (Arnulf et al., 2018), and refined through a series of processing steps including gap filling, out-of-bounds velocity assignment, 3D smoothing, water layer constraint, high-resolution resampling, and residual-moveout tomography (Wu et al., 2026). The velocity volume covers an area of 40 × 16.3 km, with a bin size of 12.5 × 37.5 m, yielding 3200 crosslines (Xlines 1001–4200) and 438 inlines (Inlines 101–538). The southwest corner (Xline 1001, Inline 101) is located at 129.945°W, 45.75°N; the northwest corner (Xline 4200, Inline 101) at 130.175°W, 46.075°N; and the southeast corner (Xline 1001, Inline 538) at 129.74°W, 45.82°N. (2026-07-16)
Subject Earth and Environmental Sciences
Keyword Pre-stack depth migration velocity, Axial Volcano
Related Publication Wu, H., Xie, W., Singh, S. C., Carton, H., Kent, G. M., Arnulf, A. F., & Harding, A. J. (2026). Oceanic upper crustal accretion by melt sill and lava flow interaction at Axial volcano. Nature Communications, 17(1) doi: 10.1038/s41467-026-70033-x
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Axial3D_VPmask_Arnulf_etal_survey_75_75_50_2.xyzv
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Published Oct 5, 2026
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