Table T2. Summary of basalt clast types.

Type Hole Lithology Color Groundmass
1
1161A, 1161B Sparsely to moderately plagioclase-olivine phyric basalt Light gray Microcrystalline
2
1161A, 1161B Aphyric to sparsely plagioclase-olivine phyric basalt Medium gray Microcrystalline
3
1161A, 1161B Aphyric basalt Buff to gray brown Fine grained
4
1161B Aphyric basalt Medium gray Microcrystalline

Notes: Fine grained refers to groundmass composed of crystals that average ~1 mm in size. Microcrystalline groundmass requires the aid of a microscope in order to identify the crystals and, in this case, refers to a predominance of quench-crystal morphologies. This table is also available in ASCII format.