During Leg 24 three drilling sites were occupied in the Gulf of Aden (231, 232, 233), two in the Somali Basin (234, 235), and three in the western Indian Ocean (236, 237, 238). The location of these sites is shown in Figure 1; latitude, water depth, and penetration depth are indicated in Table 1. Figure 2 summarizes the lithologies and stratigraphy of all eight sites cored. In this chapter are included lithologic summaries for each of the sites. The sediments are then discussed in terms of their individual biogenic, terrigenous, volcanogenic, or authigenic components and their sedimentary structures. In a series of synthesis sections the hemipelagic, pelagic, and basal metaliferous sedimentary facies are discussed.

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.

Supplement to: Cronan, David S; Damiani, Theresa; Kinsman, D J J; Thiede, Jörn (1974): Sediments from the Gulf of Aden and Western Indian Ocean. In: Fisher, R.L.; Bunce, E.T.; et al., Initial Reports of the Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXIV, 1047-1110