Fig. 1: Location and cross-section of the northern South China Sea continental margin.
From: South China Sea documents the transition from wide continental rift to continental break up

a Highly extended continental margin of the northern South China Sea. The extent of highly extended continental margin is modified from previous research35. b, c Seismic interpretation of X–X′ (white line in a) showing dome structures indicated by high-amplitude reflectors and detachment faults flanking the large dome between Baiyun and Liwan sub-basins. The upper part of the dome structures consists of a nappe fold, across which the crustal thickness thins quickly from 7 s in the north to 3 s in the south. BYDF Baiyun detachment fault, LWDF Liwan detachment fault, HAR high-amplitude reflector.