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.