Table 20. Top and base of gas hydrate distribution.				

	Chloride anomaly depth	Zero-offset VSP depth	Logging depth	Experimental depth
	(mbsf)	(mbsf)	(mbsf)	(mbsf)

Site 994 (depth of water = 2799.1 mbsl):				

Top	194.95-209.2		212	
Base	427.37-439.5		428.8	497(SW)-529 (PW)

Site 995 (depth of water = 2778.5 mbsl):				

Top	190.25-195.35		193	
Base	438.0-465.12	440 ± 10(DM)-450.0 (AM)	450	541 (SW)-577 (PW)

Site 997 (depth of water = 2770.1 mbsl):				

Top	179.57-204.75		186.4	
Base	451.65-467.45	464 ± 8 (DM)	450.9	495 (SW)-527 (PW)

"Note: DM = direct measurements of first arrival, AM = acoustic modeling, SW = based on experiments in seawater, "				
and PW = based on experiments in pure water.