Table 4. Averages of isotopic and percent organic carbon data for two eastern Mediterranean and one western Mediterranean site.

Parameter		Site MD 84861 32°E 33°N (Near mouth of Nile)	Site 969 25°E 34°N (Mediterranean Ridge)	Site 974 12°E 40°N (Tyrrhenian Sea)
Corg (%)	Nonsapropel	0.3	0.5	0.5
	Sapropel	2 to 4.5 (avg = 2.5)	3 to 9 (avg = 4.7)	1.6
	Enrichment Factor	~ 8	~ 10	~ 3
13C ()	Nonsapropel	-18.8	-24.7	-25.8
	Sapropel	-21.0	-23.1	-24.5
	13C	-2.2	+1.6	+1.3
15N ()	Nonsapropel	+6.0	+3.5	+5.0
	Sapropel	+1 to+2	+0.2	+2.2
	15N	~ -4	-3.3	-2.8

Note: Data for site MD 84641 are from Fontugne and Calvert (1992) and Calvert et al. (1992) and are approximate.