Figure 27. Site locations for Leg 187 in relation to seafloor isochrons (after Vogt et al., 1984). Sites are color coded according to the mantle domain from which their lavas were derived. Mantle domain interpretations are based on Figure 26A. Sites with two colors indicate that two types of mantle domains were sampled. Colored lines are ship tracks for Leg 187 and the two site survey cruises aboard the R/V Melville.