Chemical composition of Ninetyeast Ridge basalts, supplement to: Saunders, Andrew D; Storey, Michael; Gibson, Ian L; Leat, Philip; Hergt, Janet M; Thompson, Robert N (1991): Chemical and isotopic constraints of the origin of basalts from Ninetyeast Ridge, Indian Ocean: Results from DSDP Leg 22 and 26 and ODP Leg 121. In: Weissel, J; Peirce, J; Taylor, E; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 121, 559-590

Andrew D Saunders, Michael Storey, Ian L Gibson, Philip Leat, Janet M Hergt & Robert N Thompson
On Leg 121 of the Ocean Drilling Program, we recovered basaltic rocks from a total of three basement sites in the southern, central, and northern regions of Ninetyeast Ridge. These new sites complement the previous four basement holes drilled during Legs 22 and 26 of the Deep Sea Drilling Project, and confirm the predominantly tholeiitic, light rare earth element-enriched character of the basalts that cap the ridge. The basalts show marked iron enrichment; ferrobasalts occur...
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