Table T5. Summary of Hole 1136A volcaniclastic components.
 
Lithologic Unit Core interval
Depth
(mbsf)
Thickness (m) Age Lithologies with volcanic components Volcanic
components
Authigenic and secondary minerals
III 9R-1, 0 cm, to 9R-CC, 5 cm
70.30-79.90 9.60 early Santonian to Cenomanian Very light brown foraminifer-bearing calcareous ooze <5% silt-sized palagonitized basaltic glass shards Trace of Fe smectite clay minerals (nontronite?)
IV 10R-1, 0 cm, to 10R-1, 100 cm
79.90-89.50 9.60 Cenomanian to early Albian Brown zeolitic calcareous volcanic clayey sand 10-15% silt to fine sand-sized palagonitized basaltic glass shards Zeolites (clinoptilolite, heulandite), Fe smectite (nontronite), glauconite
V 11R-1, 0 cm, to 15R-1, 5 cm
89.50-133.00 43.50 early Albian Dark greenish gray carbonate-bearing zeolitic silty clay <5% silt-sized palagonitized basaltic glass shards Zeolites (clinoptilolite, heulandite), Fe smectite (nontronite), glauconite