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Table T23. Results of X-ray diffraction analysis.

Core, section, piece,
interval (cm)
XRD
split
Macroscopic
interpretation
XRD minerals Interpreted by Comments
309-1256D-
75R-1 (Piece 17, 110–111)   Vein of white + dark green Quartz, saponite(–), augite(=) Lledo Checked
76R-1 (Piece 9A, 46–46)   Reddish material Hematite(+), goethite, albite(?), saponite(?)(=) Lledo Checked
76R-1 (Piece 9B, 54–54)   Green material Glauconite, goethite Lledo Checked
78R-3 (Piece 4, 30–32)   Saponite, chlorite? Saponite(+), augite Saku Checked
79R-1 (Piece 8, 81–83)   Green and red material Quartz, saponite(?), albite, augite Lledo Checked
79R-1 (Piece 11, 117–120)   Dark green (celadonite?) + chalcedony Saponite, heulandite(–), quartz(=) Lledo Checked
80R-2 (Piece 7A, 84–84)   Vein of chalcedony + dark green + pale green Quartz Lledo Checked
80R-2 (Piece 5A, 51–52)   Vein of quartz + pale green with FeOx halo Saponite, quartz(–), hematite(=), augite(=) Lledo Checked
81R-1 (Piece 12A, 58–60)   Vein of quartz + saponite Anhydrite, saponite(=) Lledo Checked
83R-1 (Piece 2C, 20–22)   Vein of saponite + FeOx Amorphous(+), hematite, goethite, saponite(?) Lledo Checked
84R-1 (Piece 7C, 72–75)   White vein + sulfide + green (saponite?) Anhydrite, quartz Lledo Checked
85R-4 (Piece 2H, 56–61)   Vesicles of green (saponite?) Pyrite(+), albite(?)(–), talc(?)(=) Lledo Checked
86R-1 (Piece 7, 54–55)   Chlorite? Albite, saponite, montmorillonite, augite Gao Checked
86R-1 (Piece 11A, 84–85)   Saponite + chlorite Albite(+), augite, saponite(=) Gao Checked
86R-3 (Piece 1A, 8–9)   Chlorite? Albite Gao Checked
86R-3 (Piece 7, 140–141)   Chlorite, calcite? Quartz(++), saponite(=) Gao Checked
88R-1 (Piece 2, 17–23)   Vein of saponite Saponite, albite, augite Gao Checked
90R-1 (Piece 2, 6–10)   Vein of celadonite + chalcedony Analcime, montmorillonite Gao Checked
91R-1 (Piece 3, 12–14) A Zeolite?, gypsum? Laumontite Lledo Checked
91R-1 (Piece 3, 12–14) B Zeolite?, gypsum? Laumontite, illite–montmorillonite(?) Gao Sample is same as A, but mounted with very small amounts of material
91R-1 (Piece 25, 113–118)   Zeolite, celadonite Laumontite, montmorillonite, albite Lledo Checked
94R-1 (Piece 18, 88–94)   Laumontite? Laumontite Gao Checked
99R-1 (Piece 6, 43–47)   Laumontite? Quartz(++), saponite(=) Saku Checked
100R-1 (Piece 3, 12–15) A Actinolite? Saponite, quartz, calcite Gao and Lledo Pattern also fits selenium (Se)
100R-1 (Piece 3, 12–15) B Carbonate, calcite Calcite, quartz(–), saponite(=) Gao Checked
100R-1 (Piece 3, 12–15) C Chlorite, possibly sphalerite Saponite, calcite, and montmorillonite(=) Gao Checked
100R-1 (Piece 6, 1–6)   Chlorite? ? ? ?
100R-2 (Piece 46, 32–33)   Chlorite? Quartz(+), saponite Saku Checked
102R-1 (Piece 11, 51–57)   Sulfide, anhydrite, zeolite? Quartz, calcite, saponite(–) Saku Checked
102R-1 (Piece 24A, 24B, 130–135)   Anhydrite? Quartz(++), saponite(=) Saku Checked
106R-1 (Piece 21, 90–92)   Saponite? Saponite, quartz, diopside Gao and Lledo Checked
108R-1 (Piece 2A, 3–5)   Chlorite/saponite? Saponite, quartz, calcite Gao Checked
108R-1 (Piece 2A, 4–8)   Chlorite? Saponite, quartz, calcite, albite Gao Checked
108R-1 (Piece 6D, 30–34)   Light blue mineral Saponite, quartz, pyrite, albite Gao Checked
108R-2 (Piece 3, 14–20)   Saponite, chlorite? Saponite, quartz, calcite, albite, magnetite, pyrite? Gao Checked
108R-2 (Piece 10, 59–61)   Albite?, K-feldspar? Saponite, diopside, magnetite, iron Saku and Lledo Checked, iron came from scraping tool
109R-1 (Piece 11, 112–115)   Vein of saponite + pyrite + calcite? Saponite, quartz, pyrite, calcite, albite(–) Gao Checked
110R-2 (Piece 11B, 126–127)   Vein of saponite + calcite + pyrite? Saponite, quartz, albite, augite, pyrite Lledo Checked
114R-1 (Piece 12, 113–115)   Zeolite? Anhydrite, quartz(–) Saku Checked
122R-1 (Piece 13, 95–100)   Zeolite? Saponite, albite, augite Saku Checked
122R-1 (Piece 14, 100–102)   Phyllosilicate? Albite, augite, saponite Saku Checked
122R-1 (Piece 14, 100–104)   Pyrite? Quartz, pyrite, saponite(–), albite(–) Lledo Checked
122R-2 (Piece 10, 71–73)   Zeolite? plyllosilicate? Anhydrite Saku Checked
122R-2 (Pieces 18 and 19, 71–84)   Zeolite and carbonate? Anhydrite Saku Checked
123R-1 (Piece 7, 31–35)   Carbonate and zeolite? Anhydrite(+), calcite(–), saponite(=) Saku Checked
123R-1 (Piece 9, 47–48)   Carbonate and zeolite? Anhydrite(+), quartz(–), saponite(=) Lledo Checked, sample was repeated because of shift in patterns due to different holder used
123R-1 (Piece 12, 80–83)   Carbonate and zeolite? Anhydrite Saku Checked
123R-1 (Piece 22, 100–102)   Anhydrite? Anhydrite, quartz(–), saponite(=) Saku Checked
124R-1 (Piece 1, 0–6)   Carbonate and zeolite? Anhydrite, quartz(–), saponite(–) Saku Checked
128R-1 (Piece 7, 45–51)   Zeolite and anhydrite? Anhydrite(+), calcite(–) Lledo Checked
129R-1 (Piece 2, 6–9)   Saponite + rock Saponite, quartz, albite, augite Saku Checked
129R-1 (Piece 6, 101–105)   Anhydrite vein Anhydrite, quartz(–), pyrite(–), saponite(=) Saku Checked
130R-1 (Piece 9, 84–89)   Anhydrite + pyrite vein Anhydrite, saponite(=) Saku Checked
130R-2 (Piece 3, 30–34)   Anhydrite + quartz vein Anhydrite(+), calcite(–), quartz(=) Saku Checked
131R-1 (Piece 2, 12–16)   Anhydrite vein Anhydrite(+), quartz(=), saponite(=) Saku Checked
134R-2 (Piece 1, 2–5)   Pyrite + saponite Clinochlore, pyrite, chalcopyrite(–), titanite(=), quartz(=) Lledo Checked
136R-1 (Piece 8, 37–44)   Anhydrite, calcite Quartz(+), anhydrite(–), laumontite(=), pyrite(=) Lledo Checked
136R-1 (Piece 10, 63–66)   Anhydrite, calcite Quartz(+), clinochlore(–), calcite(–), prehnite(–), laumontite(–) Lledo Checked
136R-1 (Piece 12, 70–76)   Anhydrite, calcite Quartz, laumontite, pyrite, clinochlore, chalcopyrite, magnetite(=) Lledo Checked
136R-1 (Piece 23, 132–137)   Anhydrite, calcite Quartz(+), chalcopyrite, anhydrite, prehnite(=), clinochlore(=), pyrite(=) Lledo Checked
137R-1 (Piece 2, 29–32)   Anhydrite, quartz, zeolite? Quartz(+), pyrite, clinochlore(–), calcite(=) Lledo Checked
140R-1 (Piece 2, 6–14)   Anhydrite? Pyrite(+), calcite(–), clinochlore(–), anhydrite(–) Lledo Checked
141R-1 (Piece 4, 17–20)   Pyrite, anhydrite?, saponite Quartz(+), clinochlore, anhydrite(–), albite(–), pyrite(–) Lledo Checked
142R-1 (Piece 1, 1–10)   Anhydrite? Anhydrite(+), prehnite(–), pyrite(–) Lledo Checked
142R-2 (Piece 3, 63–69)   Pyrite, saponite? Pyrite, clinochlore/chamosite, albite, prehnite(–) Lledo Checked
142R-2 (Piece 7, 104–114)   Anhydrite? Laumontite(+), anhydrite(–), calcite(–), magnetite(–) Lledo  
143R-1 (Piece 19, 116–136)   Smectite? Clinochlore/Chamosite(+), quartz(–) Lledo Checked
145R-1 (Piece 4, 98–100)   Vein Anhydrite, pyrite, clinochlore(–) Lledo Checked
145R-2 (Piece 20, 131–136)   Sulfides Pyrite, quartz(–) Lledo Checked
146R-2 (Piece 1, 55–58)   Vein Anhydrite, clinochlore(–), quartz(=) Lledo Checked
149R-1 (Piece 15, 73–76)   Titanite, chlorite? Anhydrite(+), epidote, calcite, quartz(–), clinochlore(–) Saku Checked
150R-1 (Piece 3, 23–25)   Laumontite, chlorite(–), pyrite(–) Anhydrite(+), pyrite, quartz(=) Saku Checked
151R-1 (Piece 28, 112–113)   Anhydrite + pyrite vein Quartz(+), anhydrite, sphalerite, calcite, pyrite, clinochlore(–), talc(–)(?) Saku Checked
153R-1 (Piece 21, 105–114)   Anhydrite + pyrite vein Quartz, chamosite/clinochlore, anhydrite, sphalerite, pyrite, prehnite(–)(?) Saku Checked
153R-2 (Piece 8, 60–67)   Anhydrite + pyrite vein Anhydrite(+), clinochlore, quartz, pyrite, actinolite, albite, prehnite Lledo Checked
154R-2 (Piece 1, 8–18)   Anhydrite + pyrite vein Anhydrite(+), clinochlore(=) Lledo Checked
155R-1 (Piece 22, 101–103)   Chlorite? Calcite, pyrite, laumontite, clinochlore, quartz Lledo Checked
155R-1 (Piece 22, 106–109)   Laumontite? Laumontite Lledo Checked
155R-2, 10–18   Zeolite? Quartz(+), clinochlore, laumontite, pyrite Lledo Checked
155R-2 (Piece 5, 46–60)   Anhydrite? Quartz(+), laumontite Lledo Checked
157R-2 (Piece 10, 85–88)   Anhydrite, zeolite? Quartz(+), pyrite, clinochlore, anhydrite, calcite, prehnite(=) Lledo Checked
159R-1 (Piece 9, 57–59)   Anhydrite? Anhydrite, quartz(–), prehnite(=) Lledo Checked
162R-3 (Piece 5, 51–55)   Laumontite? + chlorite + pyrite Laumontite, quartz, pyrite(–) Lledo Checked
162R-3 (Piece 9, 71–75)   Chalcopyrite + host rock Pyrite, clinochlore/chamosite, quartz, laumontite(–) Lledo Checked
162R-3 (Piece 10, 77–78)   Vein of chalcopyrite + chlorite + anhydrite Clinochlore/Chamosite(+), laumontite, quartz, pyrite(–), tremolite(–) Lledo Checked
163R-1 (Piece 14, 113–117)   Anhydrite in interstices Anhydrite, quartz(–) Lledo Checked
165R-3 (Piece 3B, 39–48)   Chlorite + anhydrite + rock Pyrite, clinochlore, quartz, anhydrite, albite Lledo Checked
170R-1 (Piece 1C, 12–24)   Vein Clinochlore/Chamosite(+), quartz, pyrite, anhydrite Lledo Checked

Notes: FeOx = iron oxyhydroxides. (++) = very common, (+) = common, (–) = minor, (=) = very minor.

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