Table T3. Abbreviations used in the alteration and igneous core description logs.
| Colors | Minerals | Mineral proportions | |||||
|---|---|---|---|---|---|---|---|
| Brn: | Brown | Am Si: | Amorphous silica | tr: | Trace (<1%) | ||
| Blk: | Black | Sm: | Smectite | X + Y: |  50:50
x:y |
||
| G: | Gray | CO3: | Calcium carbonate | X > Y: | 70:30 x:y | ||
| Gn: | Green | Cp: | Chalcopyrite | X >> Y: | 90:10 x:y | ||
| R: | Red | FeOx: | Iron oxyhydroxides | X >>> Y: | 99:1 x:y | ||
| Or: | Orange | Ol: | Olivine |
Other
|
|||
| W: | White | Pl: | Plagioclase | ox: | Oxidized | ||
| G-Gn: | Gray-green | Py: | Pyrite | P: | Piece(s) | ||
| lt: | Light | V: | Vertical | ||||
| dk: | Dark | Rbl: | Rubble | ||||
 : |
Altered to | ||||||
| Bx: | Breccia | ||||||
Note: Other minerals and colors are spelled out.