Table T3. Summary of stratigraphic relations at Hole 1177A and correlation with equivalent units at Sites 808, 1173, and 1174.

Unit Facies
name		 Interval (cm)   Depth (mbsf) Thickness
(m)		 Stratigraphic
age		 Lithologic
description		 Processes
of formation		 Stratigraphic correlation
Top
Bottom
Top
Bottom
Site 808
Site 1173
Site 1174
    190-1177A- 190-1177A-                    
***Drilled without coring from 0 to 300.20 mbsf***            
I Upper Shikoku Basin facies 1R-1, 0 11R-5, 6
300.20 401.76 Minimum 101.56 Pliocene Hemipelagic mud, abundant volcanic ash Hemipelagic settling and frequent volcanic ash falls derived from Honshu/Kyushu Unit IVA Unit II Unit III
II Lower Shikoku hemipelagic facies 11R-5, 6 16R-4, 90
401.76 449.30
 47.54 late Miocene to Pliocene (?) Hemipelagic mudstone, trace siliceous claystone Hemipelgic settling Unit IVB Unit III Unit IV
III Lower Shikoku turbidite facies 16R-4, 90 47R-5, 25
449.30 748.35 299.05 early to late Miocene Hemipelagic mudstone, abundant sand to silt turbidites, mud-clast conglomerate, rare calcareous and siliceous claystone Hemipelagic settling, frequent terrigeneous turbidity currents in abyssal fan system NA NA NA
IV Volcaniclastic-rich facies 47R-5, 25 56R-3, 0
748.35 831.08 82.73 early Miocene Hemipelagic mudstone, volcanic ash, volcanic and siliciclastic silt to sand Volcanic ash falls and turbidity currents from unknown source, hemipelagic settling ~13.6 Ma Unit V ~14.1 Ma Unit IV ~13.4 Ma Unit V
V Basaltic basement 56R-3, 0 56R-3, 105
831.08 832.13 1.05 Probable early Miocene Basalt, pillow basalt Lavas flows at Shikoku Basin spreading ridge ~15 Ma basalt ~15 Ma basalt Not cored

Note: NA = not applicable.