APPENDIX E

Hole 1138A Lava Classification

Unit
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Characteristic:



















Breccia flow top 0 1 1 -1 1 1 1 1 0.5 -0.5 1 1 1 0 1 1 1 0 1 1
Breccia flow base 0.5 0 0 -1 0 0.5 0 1 0.5 -1 0.5 1 0 0 0 0 1 -1 0 0
Spinose aa clinker 0 0.5 0 -1 0.5 -0.5 -0.5 0.5 -1 -1 1 0.5 -0.5 0 -1 -0.5 -1 0 -1 -1
Angular vesicles 0.5 1 1 -1 1 1 1 1 0.5 0.5 0.5 0.5 0.5 0 0.5 0 -1 -1 0.5 -1
Entrained clasts 0 1 1 -1 1 1 1 1 1 -1 1 1 0.5 0 0 0 0.5 1 1 0.5
Core pushing into breccia 0 0 0 -1 -1 0.5 1 1 -1 -1 1 -0.5 0 0 -1 0 1 0 1 -0.5
Slabs in breccia 0 -0.5 -0.5 -1 -0.5 -0.5 1 -0.5 -1 -1 1 -0.5 0 0 -0.5 -0.5 -1 0 -1 -0.5
Welding in basal breccia -1 0 0 -1 0 0.5 0 1 0.5 -1 1 1 0 0 0 0 0.5 -1 0 0
Intact pahoehoe lobes in breccia 0 -0.5 -0.5 -1 -0.5 -0.5 -0.5 -0.5 -1 -1 -0.5 -0.5 -0.5 0 -1 -1 -0.5 0 1 1
Fragmented pahoehoe lobes 0.5 -0.5 0 0.5 0.5 -0.5 0.5 1 0.5 -1 1 0.5 0.5 0 1 0.5 1 0 1 1
Jigsaw-fit clasts in breccia 0 -0.5 0 -1 0.5 1 -0.5 1 -1 -1 1 -0.5 0 0 0.5 0.5 -0.5 0 0.5 0.5
Sediment infill in breccia 0 0 0 -1 1 1 0.5 0.5 -1 -1 0.5 -0.5 -0.5 -0.5 -1 -1 0.5 0 -1 -1
Pseudopeperite texture 0 -0.5 0 -1 0.5 -1 0.5 -1 -1 -1 -1 -0.5 -0.5 0 -1 -1 -1 0 -1 -1
Pahoehoe flow top 0 -1 -1 1 -1 -1 -1 -1 0.5 0.5 -1 -1 -1 0 -1 -1 -1 0 -1 -1
Pahoehoe flow base 0 -0.5 0 1 0 -0.5 -0.5 -1 0 1 -1 -1 -1 0 0 0 -1 1 0 0
Pahoehoe lobes (intact) 0 -0.5 0 1 -0.5 -0.5 -0.5 -0.5 1 1 -1 -1 -1 0 -1 -1 0 0 0.5 0.5
Glassy chill crust 0 0 0.5 1 0.5 0.5 0.5 0.5 1 1 0.5 -1 -0.5 0 1 -0.5 1 1 1 0.5
Coherent upper vesicular crust 0.5 -1 0.5 1 0.5 -1 0.5 1 1 1 0.5 0.5 0.5 0 1 0 1 0 0.5 1
Coherent lower vesicular crust 0 0.5 0.5 1 0 0 0 1 1 1 0.5 0.5 0 0.5 0 0 1 1 0 0
Round vesicles 1 0.5 0.5 1 0.5 -1 1 1 1 1 0.5 0.5 0.5 0.5 0.5 0 0.5 1 1 1
HVS 0.5 -1 -1 -1 -0.5 -1 0.5 1 -0.5 -1 -1 -0.5 -0.5 -0.5 -0.5 -0.5 -1 0.5 0 -0.5
%aa 8.65 46.15 21.15 -83.65 37.50 36.54 20.19 52.88 -22.12 -68.27 61.54 68.27 29.81 -1.92 13.46 30.77 14.42 -23.08 -12.50 -20.19
%phh 1.54 -49.23 -16.92 96.92 -32.31 -50.77 -14.62 -21.54 18.46 86.92 -40.77 -42.31 -10.77 7.69 14.62 -10.77 10.00 20.77 -4.62 11.54
%slphh -1.72 27.59 20.69 -84.48 18.97 31.03 74.14 22.41 -20.69 -62.07 77.59 17.24 31.03 -1.72 10.34 15.52 0.00 0.00 -1.72 5.17
%rphh 19.83 -6.90 37.93 39.66 26.72 0.86 50.86 65.52 71.55 25.00 39.66 31.90 42.24 9.48 66.38 29.31 87.07 20.69 68.97 71.55

Notes: phh = pahoehoe, slphh = slab pahoehoe, rphh = rubbly pahoehoe. HVS = horizontal vesicle sheet (Self et al., 1998). Bold = confident identification, italics = tentative identification.