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Table T3. Interpreted results of X-ray diffraction (XRD) analyses of samples, Site C0017.

Sample
number 		Core, section,
interval (cm) 		Lithology Subsampled for Result
  331-C0017A-
35247 1H-1, 11–11.5 Dark brown volcanic glass XRD only—check mineralogy Glass, anorthite, augite ???
35293 1H-1, 35.5–37.5 Olive-green mud/clay Routine chemistry Calcite, quartz, muscovite, anorthite, chlorite
35295 1H-1, 119–120 Light gray pumice Routine chemistry Glass, halite, quartz
35296 1H-2, 76.5–78.5 Olive-green mud/clay Routine chemistry Quartz, calcite, anorthite, muscovite, chlorite
35299 1H-3, 54–56 Black volcanic sediment Routine chemistry Glass, calcite, quartz, albite, muscovite (trace)
35300 1H-4, 122–124 Calcareous sand Routine chemistry Calcite, quartz, halite, anorthite
35303 1H-5, 115–117 Olive-green mud/clay Routine chemistry Quartz, calcite, muscovite, chlorite, anorthite
35306 1H-6, 62–64 Olive-green mud/clay Routine chemistry Quartz, calcite, muscovite, anorthite, chlorite
35308 1H-CC, 16–17 Pumice XRD only—check mineralogy Glass, anorthite
  331-C0017B-
35419 1H-1, 10–11 Pumice XRD only—check mineralogy Glass, quartz, anorthite
35420 1H-1, 103–105 Olive-green mud/clay Routine chemistry Quartz, calcite, muscovite, anorthite, dolomite, chlorite
35422 1H-2, 21–22 Black pumice clast XRD only—check mineralogy Glass, anorthite
35423 1H-3, 80–82 Olive-green mud/clay Routine chemistry Quartz, calcite, anorthite, muscovite, chlorite
35426 1H-4, 80–82 Olive-green mud/clay Routine chemistry Quartz, calcite, muscovite, anorthite, dolomite, chlorite
35428 1H-5, 80–82 Olive-green mud/clay Routine chemistry Quartz, calcite, anorthite, muscovite, chlorite
35429 1H-6, 57–59 Calcareous gravel, olive-green Routine chemistry Glass, calcite, quartz, anorthite
35432 1H-7, 80–82 Olive-green mud/clay Routine chemistry Quartz, calcite, muscovite, anorthite, dolomite, chlorite
  331-C0017C-
35441 1H-1, 114–116 Olive-green mud/clay Routine chemistry Calcite, quartz, halite, anorthite, muscovite, chlorite (trace)
35443 1H-2, 118–120 Olive-green mud/clay Routine chemistry Calcite, quartz, anorthite, muscovite, chlorite
35445 1H-3, 70–72 Olive-green mud/clay Routine chemistry Calcite, quartz, anorthite, muscovite, chlorite, cristobalite
35447 1H-4, 64–66 Olive-green sandy clay Routine chemistry Quartz, anorthite, microcline, calcite, dolomite, muscovite
35449 1H-5, 60–62 Olive-green mud/clay Routine chemistry Quartz, calcite, anorthite, muscovite, chlorite
35451 1H-6, 97–99 Oxidized yellow-brown pumiceous clay Routine chemistry Calcite, quartz, muscovite, anorthite, halite, chlorite (trace)
35453 1H-7, 73–75 Oxidized yellow-brown pumiceous gravel Routine chemistry Glass, quartz, halite
35455 2H-1, 90–92 Oxidized yellow-brown pumiceous gravel Routine chemistry Glass, quartz, halite
35457 2H-2, 97–99 Oxidized yellow-brown sandy clay Routine chemistry Calcite, quartz, anorthite, muscovite, cristobalite, chlorite
35459 2H-3, 30–32 Oxidized yellow-brown pumiceous gravel Routine chemistry Glass, quartz, halite
35461 2H-4, 84–86 Pumiceous gravel Routine chemistry Glass, halite
35463 2H-5, 50–52 Pumiceous gravel Routine chemistry Glass, halite
35465 2H-6, 60–62 Pumiceous gravel Routine chemistry Glass, halite
35467 2H-7, 45–47 Pumiceous gravel Routine chemistry Glass, halite
  331-C0017D-
35561 1H-1, 131–133 Gray pumiceous gravel Routine chemistry Glass, halite
35564 1H-2, 99–101 Pumiceous gravel with minor olive clay Routine chemistry Glass, quartz, halite
35565 1H-3, 121–123 Pumiceous gravel with minor olive clay Routine chemistry Glass, quartz, halite, anorthite
35568 1H-4, 29–31 Pumiceous gravel with olive clay Routine chemistry Glass, quartz, halite, anorthite
35567 1H-4, 86–87 Dark green (glauconitic?) stained pumice XRD only—identify green stain Glass, halite, quartz (trace)
35572 1H-5, 48–50 Pumiceous gravel with olive clay Routine chemistry Quartz, glass, anorthite, muscovite, halite
35575 1H-6, 26–28 Indurated pale green clay Routine chemistry Glass, quartz, halite, anorthite, muscovite (trace)
35576 1H-7, 30–32 Volcaniclastic sand Routine chemistry Quartz, anorthite, microcline, halite, muscovite
35583 2H-1, 120–122 Gray pumiceous gravel Routine chemistry Glass, halite, anorthite, quartz
35586 2H-2, 112–114 Light brown clay Routine chemistry Quartz, anorthite, muscovite, chlorite (trace)
35587 2H-3, 61–62 Mica-rich sand XRD only Quartz, anorthite, microcline, muscovite, brindleyite (Ni-Al silicate) ???
35588 2H-3, 52–54 Olive-green clay Routine chemistry Quartz, anorthite, microcline, muscovite
35591 2H-4, 51.5–53.5 Gray/Dark green pumiceous gravel Routine chemistry Glass, halite, anorthite, microcline
35592 2H-5, 65.5–67.5 Volcaniclastic sand Routine chemistry Glass, halite, anorthite
35594 2H-5, 78–79 Indurated olive-green clay XRD only Quartz, anorthite, muscovite, chlorite
35595 2H-6, 62–64 Dark gray indurated clay Routine chemistry Glass, quartz, anorthite, muscovite, halite, chlorite
35598 2H-7, 81.5–83.5 Gray pumice with green clay Routine chemistry Glass, anorthite, quartz, halite
35599 2H-CC, 6–7 Black volcanic glass fragment Routine chemistry Glass, anorthite
35651 6X-1, 63–65 Brown clay–fizzes with HCl Routine chemistry Quartz, anorthite, dolomite, microcline, muscovite, chlorite
35653 6X-2, 16–18 Brown clay–fizzes with HCl Routine chemistry Quartz, anorthite, calcite, muscovite, chlorite
35694 7H-2, 30–32 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, muscovite, chlorite
35696 7H-3, 134–136 Silt with gray calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, muscovite, chlorite, tremolite ???
35698 7H-4, 110–112 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, microcline, muscovite, chlorite
35700 7H-5, 42–44 Brown volcaniclastic silt Routine chemistry Glass, quartz, anorthite, pyrite
35702 7H-6, 66–68 Slightly soupy gray calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, dolomite, muscovite, chlorite
35706 7H-CC, 22–24 Gray indurated calcareous clay and silt Routine chemistry Quartz, anorthite, microcline, muscovite, chlorite
35704 8T-CC, 0–2 Redrill–flow-banded welded tuff Routine chemistry Glass, anorthite, microcline
35731 9X-2, 110–112 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, muscovite, chlorite
35733 9X-4, 100–102 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, dolomite, muscovite, chlorite
35735 9X-6, 100–102 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, muscovite, chlorite
35737 9X-8, 70–72 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, muscovite, chlorite
35739 9X-CC, 40–42 Dark brown sugary pumice XRD only Glass, quartz, anorthite, pyrite
35780 10X-2, 60–62 Dark gray calcareous clayey silt Routine chemistry Quartz, anorthite, dolomite, microcline, muscovite, chlorite
35782 10X-4, 32–34 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, dolomite, muscovite, chlorite
35784 10X-CC, 40–42 Gray indurated calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, muscovite, chlorite
35892 11X-1, 70–72 Brown calcareous clay Routine chemistry Quartz, anorthite, calcite, microcline, dolomite, muscovite, chlorite
35894 11X-2, 68–70 Brown calcareous clay Routine chemistry Quartz, anorthite, dolomite, microcline, muscovite, chlorite
35898 11X-3, 27–29 White-gray hydrothermal? grit XRD only Glass, halite, quartz, sylvite
35896 11X-3, 75–77 Brown calcareous clay Routine chemistry Quartz, anorthite, muscovite, chlorite
35900 11X-CC, 33–35 White-gray hydrothermal? grit Routine chemistry Glass, quartz, anorthite

Phases listed in approximate order of decreasing abundance.

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