No Sample type py mc po cp sp anh qtz chalc. am.si clay chlo. Fe-ox. other 1 957A 3X1 #9 2 red chert *** tr - tr tr - - ***** - - - tr - 8 957B 4R1 #5 2 red and gray chert * - - - - - **** *** - * - *** - 43 957J 1X-1 #33 2 gray and red chert *** tr - - tr - *** *** * ** - ** hem 57 957N-1W1 #2 2 dark gray chert ** - - * tr - ***** ** tr - - - "bn,cv,dg,cc,hem" 2 957A 3X1 #10 3 gray chert * - - tr tr - - ***** - - - tr - 4 957A 3X1 #8 3 gray silica ** - - tr tr - - - ***** - - - - 3 957A 3X1 #11 5 a massive porous pyrite ***** *** - tr ** - - - - - - tr - 28 957E 2R1 #2 5 a massive porous pyrite ***** - - *** tr ** ** - - - ** - - 41 957I-1N-1 #8 5 a porous colloform pyrite-marcasite **** ***** - tr ** - - - - - - - bn-cv 44 957K 1X-1 #2 5 a porous massive pyrite **** ** - - tr - - - ***** - - - - 45 957K-1X-1 #4 5 a porous massive pyrite *** **** - - tr - - - *** - - tr - 59 957M-2R-1 #4 5 a porous massive pyrite *** **** - - * - - - - - - tr - 5 957B-1R-2 #1 5 b massive porous sphalerite ** - - * **** - - - *** - - tr - 6 957B-3R-1 #1 5 c massive granular pyrite ***** - - tr tr - - - - - - - - 29 957F-2N-1 #5 5 c massive granular pyrite ***** - - * tr * tr - tr tr - - - 31 957G-1N-1 #3 5 c massive granular pyrite ***** - - * tr tr * ** - tr - tr - 46 957K-2N-1 #9 5 c massive granular pyrite ***** *** - *** tr - - - - - - - "bn,cv,dg" 47 957K-3x-1 #6 5 massive pyrite **** **** - - ** - * * tr - - - - 48 957K-3x-1 #7 5 massive pyrite **** **** tr * * * - - tr unknown 24 957C-14N-2 #1D 5 pyrite-chalcopyrite selvage ***** - - * tr ** tr - - - - - - 27 957C-7N-1 #6G 6 a nodular pyrite breccia ***** - - *** tr *** * - - - - - - 30 957F-1N-1 #10C 6 a nodular pyrite brecia **** - - * tr **** tr - - - - - - 37 957H-1N-1 #13 6 a porous nodular pyrite breccia *** - - *** tr **** - - - - - tr hem + ? 36 957H-1N-1 #13 6 massive pyrite; clast ***** - - * tr tr - * - * - - - 38 957H-3N-1 #1 6 massive pyrite breccia ***** **** - tr * - - - tr tr - tr - 11 957C-5N-1 #2 7 a massive pyrite-anhydrite breccia ***** - - *** tr **** tr - - tr - - - 12 957C-5N-1 #6 7 a massive pyrite-anhydrite breccia ***** - - * tr * ** - - tr - tr - 13 957C-5N-1 #7 7 a massive pyrite-anhydrite breccia ***** - - ** tr tr **** - - tr - tr - 14 957C-7N-1 #6F 7 c nodular siliceous pyrite-anhydrite breccia **** - - *** tr **** * - - - - - - 15 957C-7N-1 #8D 7 c nodular siliceous pyrite-anhydrite breccia **** - - ** tr *** **** - - tr - tr - 16 957C-7N-2 #1E 7 c nodular siliceous pyrite-anhydrite breccia **** - - ** tr **** ** - - tr - - - 20 957C-12N-2 #12 8 pyrite-silica-anhydrite breccia **** - - tr - ** **** - - tr - - - 58 957N-1W-1 #4 8 pyrite-silica-anhydrite breccia **** - - ** tr ** *** - - * - tr - 18 957C-11N-1 #3A 9 a pyrite-silica breccia *** - - tr - ** ***** - - tr - - - 23 957C-14N-1 #2 9 a pyrite-silica breccia **** - - tr tr *** **** - - - - - - 33 957E-11R-1 #9 9 a pyrite-silica breccia ***** - tr * tr - *** ** - * - - hem 40 957H-8N-1 #14 9 a pyrite-silica breccia ***** - - * tr * - **** - - - tr - 42 957I-1N-1 #12 9 a pyrite-silica breccia **** - - * tr - **** *** - * - tr - 50 957M-1R-2 #7 9 a pyrite silica breccia *** - - ** - - ***** - - * - - - 51 957M-3R-1 #30 9 a pyrite silica breccia **** * - ** tr - **** tr - tr - - - 21 957C-15N-4 #4 9 b nodular pyrite-silica breccia **** - - tr - ***** - - tr - tr - 22 957C-15N-2 #1B 10 a silicified basalt breccia **** - - - tr tr **** - - ** tr - - 25 957C-16N-2 #3C 10 a silicified basalt breccia **** - - - - * **** - - ** tr - - 26 957C-16N-2 #1B 10 a silicified basalt breccia **** - - tr tr tr **** - - - - - - 32 957E-4R-1 #3 10 a silicified basalt breccia *** - - tr tr tr **** * - ** - - - 39 957H-5N-2 #3A 10 a silicified basalt breccia ***** - - tr - * **** - - * - tr - 34 957E-18R-1 #5 10 b chloritized basalt breccia *** - tr ** tr - **** - - tr **** - 35 957E 14R1 #11 10 b chloritized basalt breccia *** - - - tr - **** - - tr ***** tr - 19 957C 11N2 #9 11 a massive banded anhydrite vein tr - - tr - ***** - - - - - - - 7 957B 4R1 *2 altered basalt * - - - - - - ***** - * - *** - 9 957B 4R1 *7 altered basalt - - - - - - - - - - - - - "***** = dominant (>50%), **** = major (26-50%), *** = abundant (11-25%), ** = minor (6-10%), * = rare (2-5%), tr = trace. No in first column is the thin section number." "py = Pyrite; mc = Marcasite; po = Pyrrhotite; cp = Chalcopyrite, sp = Sphalerite; anh = Anhydrite; qtz = Quartz; chalc = Chalcedony; am-si = Amorphous silica; clay = Clay; chlo = Chlorite; fe-ox = Iron oxides" hem = Hematite; bn = Bornite; cv = Covellite; dg: digenite; cc = Chalcocite