Supplement to: Nagel, Ulrich; Schumann, Dieter (1981): X-ray mineralogy of sediments, Deep Sea Drilling Project Leg 62. In: Thiede, J; Vallier, TL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 62, 529-535, https://doi.org/10.2973/dsdp.proc.62.117.1981
Sixty-nine sediment samples of Deep Sea Drilling Project Leg 62 were mineralogically examined by X-ray diffractometry, and gasometrically for their carbonate content. Most sediments were found to be carbonate-rich; some have up to 97% CaCO3. Many chalk or limestone samples contain chert, accounting for high quartz percentages in some analyzed samples.
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