Table T1. Abbreviations used in the alteration and vein logs.
Common colors*
Primary and secondary minerals*
Apparent vein orientation
Other
Color Name Abbreviation Munsell reference Minerals Abbreviation Orientation Abbreviation Term Explanation
Black Blk 10YR 2/1 Celadonite Cel Inclined INC << Much less than
White Wht 2.5Y N8/ Calcium carbonate CO3 Curved CUR Hf Hairline fracture
Brown Brn 10YR 4/3 Iron oxyhydroxides FeOx Horizontal H -> Altered to
Yellowish brown Yel-Brn 10YR 5/8 Olivine Ol Vertical V Trace Trace (<1%)
Dark brown Dk Brn 10YR 3/3 Plagioclase Pl Subhorizontal SH Sediment Sediment
Olive Olv 5Y 4/3 Pyrite Py Subvertical SV Apparent Apparent
Green Grn 10GY 4/4 Saponite Sap

Identifier Identifier
Yellowish green Yel-Grn 10Y 7/6 Smectite Sm



Dark green Dk Grn 10GY 3/2 Zeolite Zeol



Dusky green Grn-Gr 5G 3/2 Manganese oxyhydroxides MnOx



Grayish green Gr-Grn 5G 5/2 Chalcedony Chal



Gray Gr 10Y 5/1 Quartz Qtz



Dark gray Dk Gr 10YR 4/1 Pyroxene Pyx



Dark yellowish brown DYB 10YR 4/6 Copper Cu



Light yellowish brown LYB 10YR 6/4 Manganese Mn



Pink Pink 10R 8/4





Note: * = other mineral names and colors are spelled out.