Table T5. XRD data from veins, Hole U1309D, Expedition 305.
Core, section, interval (cm) |
Hand sample description/ scientist comments |
Mineral phases | Possible trace | |
---|---|---|---|---|
Main | Minor | |||
305-U1309D- | ||||
80R-1, 53–54 | Soft, white vein | Chlorite, serpentine, clay | ||
80R-1, 89–90 | Talc-carbonate | Chlorite, serpentine, clay | ||
80R-2, 6–7 | Soft, white vein | Calcite | Amphibole | |
80R-2, 50–51 | Soft, white vein | Calcite, clay | ||
80R-2, 122–123 | Vein | Chlorite, amphibole | ||
81R-1, 43–44 | Talc-carbonate vein | Calcite, clay | ||
84R-1, 63–64 | Vein | Quartz, calcite | Pyrite?, albite | |
84R-2, 16–18 | Vein | Albite, tremolite | Augite | |
86R-1, 52–53 | Vein | Albite, tremolite | Clinopyroxene | Pyrite?, ilmenite? |
86R-2, 33–35 | Vein | Albite, tremolite | ||
86R-3, 46–47 | Vein | Plagioclase, clinopyroxene | Tremolite | |
88R-5, 5–6 | Messy talc vein | Chlorite, amphibole, talc, clay | ||
89R-1, 57–58 | Messy talc vein | Calcite, amphibole, chlorite, clay | Talc | |
89R-2, 59–60 | Sulfide-chlorite vein | Amphibole, augite | Plagioclase, clay | |
90R-2, 55–56 | Altered clinopyroxene | Amphibole, clinopyroxene, chlorite | Talc | |
90R-4, 31–32 | Calcite vein | Calcite | Clay | |
91R-1, 121–122 | Albitized zone | Albite | Amphibole, chlorite | |
93R-2, 72–73 | Messy talc vein | Calcite, chlorite | Talc, amphibole | Albite, clay |
93R-2, 123–124 | Slip-fiber vein | Calcite, chlorite, amphibole | ||
94R-1, 52–53 | Chlorite, amphibole, albite | |||
95R-1, 119–120 | Slip-fiber | Tremolite, clay | ||
96R-1, 52–53 | Magmatic vein | Tremolite, plagioclase (albite?) | ||
96R-1, 119–120 | Slip-fiber | Tremolite, clay | ||
97R-1, 38–39 | White vein | Quartz, calcite | Tremolite, chlorite | |
100R-5, 37–38 | Calcite, chlorite | Serpentine | ||
103R-2, 68–69 | Talc vein | Chlorite, tremolite, clinopyroxene | Pyrite? | |
104R-2, 145–146 | Talc | Bad pattern | ||
107R-2, 96–97 | Magmatic vein | Albite | Chlorite | |
109R-4, 6–7 | Talc vein | Calcite, clay | ||
110R-3, 80–82 | Slip-fiber vein | Calcite | Serpentine | |
111R-1, 90–92 | Talc alteration zone | Talc, clay | ||
111R-2, 96–97 | Vein in talc alteration zone | Chlorite, amphibole | ||
116R-1, 26–28 | Altered leucogabbro | Plagioclase, amphibole, chlorite, clinopyroxene | ||
116R-4, 41–43 | Slip-fiber vein | Tremolite, calcite | Chlorite | |
117R-4, 24–28 | ICP-AES? | Plagioclase, clinopyroxene | Amphibole, chlorite | |
117R-4, 79–81 | Slip fiber vein | Chlorite, tremolite, clay | Talc | |
118R-3, 39–40 | Slip fiber | Chlorite, tremolite, clay | ||
119R-1, 66–67 | Dark green vein | Amphibole, plagioclase, clinopyroxene, clay | ||
119R-2, 40–41 | Dark green vein | Amphibole, clay | ||
120R-2, 103–104 | Carbonate-sulfide vein | Calcite, quartz, clay | Pyrite | |
120R-3, 36–37 | Calcite, quartz, pyrite | Plagioclase | ||
124R-1, 83–84 | Dark green vein | Chlorite, tremolite, clay | Calcite, plagioclase, clinopyroxene | |
125R-1, 105–106 | Dark green vein | Chlorite, amphibole, plagioclase, calcite, clinopyroxene, clay | ||
125R-3, 124–125 | Calcite-chlorite vein | Calcite, quartz, pyrite, albite, clay | ||
130R-1, 125–126 | Altered rock | Tremolite, plagioclase, clinopyroxene, clay | ||
130R-3, 40–41 | Calcite | Chlorite | ||
134R-2, 122–123 | Messy talc vein with calcite | Calcite | Talc, chlorite, pyrite | |
136R-1, 73–74 | Slip fiber | Calcite, talc, chlorite | ||
136R-2, 26–27 | Quartz? | Serpentine | ||
139R-1, 113–116 | Sulfide vein | Calcite, chlorite, pyrite | Amphibole, plagioclase | |
139R-2, 125–127 | Soft talc vein | Calcite, chlorite | ||
140R-2, 5–7 | Altered magmatic dike in talc zone | Plagioclase, chlorite, amphibole, talc | ||
140R-2, 55–56 | Altered diabase | Amphibole, cummingtonite | Chlorite | Illite |
140R-2, 89–90 | Frankenstein vein | Calcite | Clay | |
140R-3, 10–12 | Soft talc vein | Bad pattern | ||
140R-4, 78–80 | Soft talc vein | Serpentine, calcite, clay | ||
140R-4, 115–116 | Altered igneous rock | Chlorite, amphibole | Plagioclase, clinopyroxene | |
141R-2, 80–81 | Metaigneous? | Clinopyroxene, amphibole, plagioclase | ||
145R-2, 110–111 | Green vein | Tremolite | Clay | |
147R-1, 124–125 | Green calcite vein | Calcite, amphibole | ||
149R-2 | Funny green slip-fiber vein | Talc, tremolite, chlorite | Clay | |
151R-1, 32–34 | White, fibrous | Amphibole, chlorite, calcite, talc | ||
150R-3, 22–25 | Big fluffy white vein | Anhydrite | Calcite | |
157R-1, 112–114 | Whitish vein | Amphibole | Clinopyroxene | |
164R-2, 16–17 | Soapy vein with calcite | Serpentine, clay | ||
165R-2, 143–145 | Talc-carbonate | Analcime, thomsonite/natrolite | Clay | |
165R-3, 8–9 | Soapy vein with calcite | Analcime, serpentine | Clinopyroxene | |
168R-1, 59–60 | Slip-fiber? | Albite, clay | Talc, amphibole | |
171R-2, 94–95 | Gouge with tremolite | Amphibole, clay | Plagioclase, clinopyroxene | |
174R-2, 70–72 | Waxy, dark green | Amphibole, talc, clay | Clinopyroxene, orthopyroxene, plagioclase | |
177R-3, 46–48 | Talc vein | Thomsonite, analcime, chrysotile | Plagioclase, clinopyroxene | |
178R-1, 95–97 | Zeolite | Plagioclase, amphibole, clinopyroxene | Natrolite | |
179R-4, 130–133 | Chlorite? | Amphibole, plagioclase, clinopyroxene | ||
184R-1, 68–70 | Slip fiber | Tremolite | ||
185R-1, 135–137 | Greenish, earthy (gouge?) | Amphibole, clay, plagioclase, clinopyroxene | ||
186R-3, 61–64 | White vein | Calcite, chlorite, amphibole, albite | ||
192R-1, 9–10 | Talcose vein | Clay, chlorite, natrolite, analcime | Plagioclase, clinopyroxene | |
202R-2, 12–13 | Talc?-calcite vein | Clay, calcite, | Albite, thomsonite | |
204R-3, 92–93 | Talc? vein | Clay, talc, calcite, chlorite, amphibole, quartz | Plagioclase, clinopyroxene | |
205R-4, 95–100 | ICP-AES? | Amphibole | Plagioclase, clinopyroxene | |
207R-5, 24–27 | Talc vein | Clay, serpentine, clinopyroxene | Talc | |
207R-6, 11–14 | Talc, very dark | Clay, serpentine, magnetite | ||
208R-2, 17–23 | Talc, white stuff | Clay, thomsonite, analcime | ||
209R-1, 24–28 | Strange calcite | Prehnite | ||
209R-2, 132–135 | Talc-carbonate | Clay, serpentine, amphibole | Plagioclase, clinopyroxene | |
213R-4, 42–47 | Talc-carbonate | Clay, thomsonite, prehnite | Plagioclase, clinopyroxene, talc | |
216R-2, 47–51 | Talc-carbonate | Clay, thomsonite, prehnite | Plagioclase, clinopyroxene, ilmenite | |
226R-1, 29–30 | Zeolite | Clay, thomsonite, prehnite, talc | ||
226R-2, 38–39 | Talc-carbonate | Clay, thomsonite | Plagioclase, clinopyroxene | |
228R-1, 113–114 | Pale green talc vein | Clay, calcite, serpentine | ||
228R-4, 51–51 | Green talc vein | Clay, calcite | Clinopyroxene | |
229R-1, 82–83 | Talc-carbonate | Calcite, prehnite, chlorite | Zeolite, clay | |
229R-2, 62–63 | Talc-carbonate | Calcite, clay | ||
230R-3, 86–87 | Carbonate-zeolite | Clay, calcite, thomsonite | ||
231R-2, 55–56 | Epidote-bearing | Chlorite, calcite, analcime, epidote | Clay, thomsonite | |
234R-2, 3–8 | Tremolite near rodingite | Tremolite, calcite | ||
240R-1, 51–54 | Soft vein | Clay, thomsonite, serpentine | Prehnite | Gibbsite |
240R-1, 100–101 | Soft green gel, heated to 200°C | Saponite | Calcite | |
261R-2, 67–70 | Green, slip-fiber vein | Tremolite, thomsonite, chlorite | Hydrogarnet | |
276R-2, 45–50 | Calcite vein | Calcite, clay | ||
285R-1, 60–62 | Soft, dark green vein | Chlorite, thomsonite, clay | ||
286R-1 | Soft, dark green vein | Clay, chlorite | ||
289R-1, 73–76 | Green vein | Actinolite, serpentine, thomsonite, prehnite, clay | Clinopyroxene | |
290R-3, 52–55 | Light green vein | Serpentine, albite, actinolite, thomsonite | Clay, clinopyroxene | |
291R-2, 103–105 | Soft, light green vein | Clay? | Weak pattern | |
291R-3, 100–102 | Green and white vein | Thomsonite, saponite | ||
293R-1, 44–47 | Green and white vein | Kutnahorite, clay | ||
293R-1, 79–81 | Dark green vein | Chlorite, analcime, thomsonite, amphibole, prehnite | Clinopyroxene |
Note: ICP-AES = inductively coupled plasma–atomic emission spectroscopy.
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