Table T7. Summary of characterization of lava flows drilled on Leg 183.
 
Hole 1136A Hole 1137A Hole 1138A Hole 1139A
Unit
 
%aa
%phh
%slab
%rbb
 
%aa
%phh
%slab
%rbb
 
%aa
%phh
%slab
%rbb
 
%aa
%phh
%slab
%rbb
1 phh -27 51 -9 17 unk -5 12 -19 17









2 phh -15 50 -9 16 rbb -27 12 -12 73









3 rbb 17 -8 17 34 phh 18 32 -40 15 unk 9 2 -2 20




4




phh -78 98 -79 16 aa 46 -49 28 -7




5









rbb 21 -17 21 38




6









phh -84 97 -84 40 unk -3 9 -2 -1
7




rbb 25 -16 -2 59 aa 38 -32 19 27 unk 15 -16 3 -1
8




phh -47 94 83 12 unk 37 -51 31 1 unk 1 -8 2 3
9









slab 20 -15 74 51 unk 9 -1 16 19
10




rbb 15 8 12 53 rbb 53 -22 22 66 phh -62 81 31 43
11









rbb -22 19 -21 72 aa 69 -38 10 -3
12









phh -68 87 -62 25 rbb -37 27 -5 72
13









slab 62 -41 78 40 rbb 11 -8 16 46
14









aa 68 -42 17 32 rbb 18 -13 48 72
15









rbb 30 -11 31 42 unk -1 2 0 3
16









unk -2 8 -2 9 rbb -16 10 10 84
17









rbb 13 15 10 66 unk 9 -1 31 36
18









unk 31 -11 16 29




19









rbb 14 10 0 87




20









unk -23 21 0 21




21









rbb -12 -5 -2 69




22









rbb -20 12 5 72




Notes: Scores for each lava type are given in percent, followed by assigned lava type. Bold indicates confident determinations, italics indicate tentative assignments. phh = pahoehoe, rbb = rubbly pahoehoe, unk = unclassifiable. Note that negative values indicate the confidence that the unit is not of that lava type. Also note that in several cases even when the exact flow type cannot be identified, some flow types can be excluded. For example, Unit 8, Hole 1138A, may be an aa or slab pahoehoe flow but cannot be a pahoehoe flow.