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Table T5. Interpreted results of X-ray diffraction (XRD) analyses of samples, Site C0013.

Sample
number 		Core, section,
interval (cm) 		Lithology Subsampled for Result
  331-C0013B-
29085 1T-1, 9–11 Bulk sample of clay and grit Routine chemistry Anhydrite, barite, muscovite
29088 1T-1, 25–26 White silty clay XRD only—identification of phases Kaolinite, woodhouseite ???, phosphorus sulfide ???, wurtzite/sphalerite
29089 1T-CC, 20–22 Bulk sample of clay and grit Routine chemistry Kaolinite, wurtzite/sphalerite, barite
  331-C0013C-
29143 1H-1, 2–4 Bulk sample of clay Routine chemistry Kaolinite, pyrite, wurtzite/sphalerite
29146 1H-1, 39–40 Gray clay and grit XRD only—identification of phases Kaolinite, pyrite, muscovite
29665 1H-2, 13–15 Dark brown silt Routine chemistry Muscovite, kaolinite, pyrite, barite
29668 1H-2, 83–85 Sulfidic grit Routine chemistry Barite, pyrite, wurtzite/sphalerite, kaolinite, vermiculite ???
29671 1H-4, 7–9 Pale gray clay altered volcanic clast Routine chemistry Illite/Muscovite, pyrite, galena, barite
29674 1H-5, 3–5 Bulk pale gray clay Routine chemistry Anhydrite, muscovite, vermiculite
29677 1H-5, 69–71 Clear euhedral crystal XRD only—confirmation of VCD Anhydrite
29679 1H-6, 16–18 Indurated dark gray clay Routine chemistry Anhydrite
29147 1H-11, 34–36 Bulk sample of clay and grit Routine chemistry Anhydrite, wurtzite/sphalerite, magnesite ???, galena
29152 1H-11, 74–75 Gray clay and grit XRD only—identification of phases Anhydrite, Mg chlorite, pyrite, galena
29153 1H-12, 7–9 White clay and grit Routine chemistry Mg chlorite, muscovite, wurtzite/sphalerite
29156 1H-12, 41–43 White clay Routine chemistry Anhydrite, Mg chlorite, muscovite, pyrite, wurtzite/sphalerite
29159 1H-13, 4–6 White clay and grit Routine chemistry Anhydrite, galena
29178 1H-13, 50–51 Clear euhedral mineral; anhydrite? XRD only—confirmation of VCD Anhydrite
29162 1H-13, 71–73 Horizon with brown layers Routine chemistry Anhydrite
29172 1H-13, 101–102 White anhydrite-silica-carbonate clast XRD of TS sample 29173 Anhydrite, talc (10, dolomite)
29166 1H-14, 14–16 Clay-white opaque material Routine chemistry Anhydrite, quartz, Mg chlorite
29171 1H-15, 10–12 Clay-white material with small translucent anhydrite Routine chemistry Anhydrite, talc, quartz
29177 1H-16, 5–7 Clay-white/gray material Routine chemistry Anhydrite, Mg chlorite, pyrite
29179 1H-CC, 23–24 White anhydrite-silica-carbonate clast XRD only—identification of phases Anhydrite, dolomite, talc
  331-C0013D-
29222 1H-1, 45–47 Bulk gray clay and grit Routine chemistry Wurtzite/Sphalerite, galena, muscovite
29225 1H-2, 86–88 Bulk dark gray sulfidic clay and grit Routine chemistry Anhydrite, wurtzite/sphalerite
29228 1H-3, 42–44 Anhydrite vein Routine chemistry Anhydrite, galena, wurtzite/sphalerite
29231 1H-3, 82–83 Dark brown clay XRD only Anhydrite, pyrite, galena, muscovite
29232 1H-4, 50–52 Bulk pale gray clay Routine chemistry Anhydrite
29235 1H-5, 72–74 White anhydrite-silica-carbonate vein Routine chemistry Anhydrite
29238 1H-6, 110–112 Soft pale gray clay Routine chemistry Mg chlorite, anhydrite, pyrite
29241 1H-7, 126–128 Soft pale gray clay Routine chemistry Noncrystalline phases, quartz, pyrophyllite ???
29273 2H-1, 54–56 Bulk clay Routine chemistry Mg chlorite, pyrite
29276 2H-2, 64–66 Bulk clay Routine chemistry Mg chlorite, anhydrite, pyrite
29279 2H-3, 55–57 White anhydrite-silica-carbonate clast Routine chemistry Talc, anhydrite, quartz
29282 2H-4, 65–67 Bulk clay Routine chemistry Mg chlorite, anhydrite, pyrite
29285 2H-5, 5–7 Blue-white mottled clay Routine chemistry Mg chlorite
29288 2H-6, 104–106 Bulk clay Routine chemistry Mg chlorite, anhydrite, pyrite, calcite
29291 2H-7, 26–28 Blue-white mottled clay Routine chemistry Mg chlorite, pyrite, pyrrhotite ???
29459 3T-1, 18–20 Hydrothermal sand—redrill Routine chemistry Anhydrite, Mg chlorite, rest of material possibly magnesite, calcite, barite
29462 4X-1, 0–2 Silicified volcanic breccia Routine chemistry Quartz, muscovite, Mg chlorite
  331-C0013E-
29482 1H-1, 2–4 Native sulfur and clay Routine chemistry Sulfur, barite, quartz
29485 1H-2, 124–126 Sulfidic grit Routine chemistry Wurtzite/Sphalerite, barite, quartz
29491 1H-3, 40.5–42.5 Sulfidic grit Routine chemistry Wurtzite/Sphalerite, galena, pyrite
29488 1H-4, 68–70 Clay Routine chemistry Wurtzite/Sphalerite, pyrite
29494 1H-4, 116–117 Massive sulfide sediment XRD only—sulfide mineralogy Wurtzite/Sphalerite, pyrite, anhydrite
29495 1H-5, 41–43 Sulfidic grit Routine chemistry Lithium aluminous silicate ???, wurtzite
29498 1H-6, 99–101 White anhydrite-silica-carbonate clast Routine chemistry Anhydrite, wurtzite, Mg chlorite
29613 2H-1, 58–60 Sulfidic grit Routine chemistry Wurtzite/Sphalerite, anhydrite, galena, barite
29616 2H-CC, 5–7 Silica-carbonate-sulfate vein Routine chemistry Anhydrite, calcite, dolomite, talc
29619 3X-CC, 6–7 Silica-carbonate-sulfate vein XRD only—silica-sulfate-carbonate vein Anhydrite, magnesite
29620 5H-1, 21–23 Soft pale gritty clay XRD only—identification of phases Mg chlorite, anhydrite, pyrite
29621 5H-1, 82–84 Indurated mottled clay Routine chemistry Anhydrite, Mg chlorite, talc, pyrite
29624 6X-CC, 43–45 Silicified volcanic breccia Routine chemistry Quartz, anhydrite, Mg chlorite, hematite ?????
29696 7L-2, 43–46 Silicified volcanic breccia Routine chemistry Quartz, anhydrite, Mg chlorite, muscovite
29708 9X-CC, 8–10 Mud from core catcher Routine chemistry Quartz, Mg chlorite, muscovite, anhydrite
  331-C0013F-
34624 1H-1, 5–6 Sulfur cap XRD only—mineralogy Sulfur, barite
34622 1H-1, 11–13 Matrix mud/clay Routine chemistry Barite, sulfur, sphalerite/wurtzite, covellite (trace)
34625 1H-2, 30–32 Gray mud matrix Routine chemistry Kaolinite, sulfur, barite, sphalerite/wurtzite
34722 1H-2, 57–59 Indurated gray hydrothermal clay Routine chemistry Kaolinite, pyrite, sulfur, muscovite, sphalerite/wurtzite
34725 1H-2, 92–94 Soupy gray hydrothermal clay Routine chemistry Kaolinite, sphalerite/wurtzite, pyrite, muscovite, galena, cosalite (Pb2Bi2S5)
34728 1H-3, 7–9 Hydrothermal clay with native S Routine chemistry Sphalerite/Wurtzite, pyrite, galena, kaolinite
34726 1H-3, 28.5–30.5 Dark gray hydrothermal clay Routine chemistry Sphalerite/Wurtzite, pyrite, galena, kaolinite, muscovite/illite/montmorillonite
34729 1H-4, 62–64 Dark gray hydrothermal clay Routine chemistry Sphalerite/Wurtzite, pyrite, galena, muscovite
34731 1H-5, 18–20 Gray hydrothermal clay Routine chemistry Sphalerite/Wurtzite, pyrite, galena, anhydrite, muscovite
34734 1H-5, 86–88 Sulfidic grit Routine chemistry Sphalerite/Wurtzite, anhydrite, galena, pyrite
34735 1H-6, 74–76 Gray hydrothermal clay Routine chemistry Sphalerite/Wurtzite, covellite, pyrite, galena, muscovite
34738 1H-7, 62–64 Gray hydrothermal clay Routine chemistry Anhydrite, magnesite, sphalerite/wurtzite, Mg chlorite, pyrite, galena
34739 1H-8, 65–67 Gray hydrothermal clay—white mottling Routine chemistry Sphalerite/Wurtzite, anhydrite, pyrite, covellite, galena
34742 1H-9, 94–96 Bulk light gray gravel and anhydrite crystals Routine chemistry Anhydrite, pyrite
  331-C0013G-
34789 1H-2, 74–76 Redrill—hydrothermal gravel Routine chemistry Anhydrite, sphalerite/wurtzite, muscovite, pyrite, galena, halite
  331-C0013H-      
34791 1H-2, 21–23 Redrill—grit, hydrothermal clay, anhydrite, and sulfides Routine chemistry Anhydrite, magnesite, dolomite, barite, sphalerite/wurtzite, galena

Phases listed in approximate order of decreasing abundance. VCD = visual core description, TS = thin section.

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