Fig. 1: The No. 2 shipwreck site on the Northwest Slope of the South China Sea and the collected samples.

a Location of the site, b Overall view of the site, c Waterlogged archaeological ebony, d Waterlogged archaeological Toona wood.

a Location of the site, b Overall view of the site, c Waterlogged archaeological ebony, d Waterlogged archaeological Toona wood.