|
Core, section,
interval (cm) |
Depth
(mbsf) |
Piece
|
Rock type
|
Mineralogy
|
ICP-AES
analyses |
Thin
section |
||
|---|---|---|---|---|---|---|---|---|
|
Major
|
Minor
|
Trace
|
||||||
| 209-1268A- |
|
|
|
|
|
|
|
|
| 2R-2, 41–44 | 15.8 | 4C | Harzburgite | Lizardite | Talc, magnetite |
|
Yes | Yes |
| 2R-2, 73–76 | 16.1 | 8 | Harzburgite | Lizardite | Magnetite |
|
Yes | Yes |
| 2R-3, 11–13 | 16.9 | 4 | Harzburgite | Talc |
|
|
Yes | Yes |
| 3R-2, 107–111 | 22.7 | 20A | Harzburgite | Chrysotile, talc |
|
Pyrite | Yes | Yes |
| 4R-1, 122–127 | 26.0 | 20A | Harzburgite | Lizardite | Talc |
|
Yes | Yes |
| 4R-2, 92–94 | 27.2 | 15 | Harzburgite | Talc |
|
|
— | — |
| 5R-2, 60–63 | 31.9 | 14 | Harzburgite | Talc |
|
|
Yes | Yes |
| 6R-1, 109–112 | 35.5 | 15 | Harzburgite | Lizardite | Talc |
|
Yes | Yes |
| 10R-2, 5–7 | 55.1 | 1 | Dunite | Talc |
|
|
Yes | Yes |
| 10R-2, 82–85 | 55.9 | 14 | Harzburgite | Talc |
|
|
Yes | Yes |
| 12R-1, 50–52 | 63.7 | 3 | Harzburgite | Lizardite |
|
Talc | Yes | Yes |
| 13R-1, 33–37 | 68.5 | 6A | Harzburgite | Lizardite |
|
Talc | Yes | Yes |
| 13R-1, 71–76 | 68.9 | 6B | Harzburgite | Lizardite |
|
Talc | Yes | Yes |
| 14R-2, 130–133 | 75.6 | 16 | Harzburgite | Talc | Lizardite |
|
Yes | Yes |
| 15R-3, 132–135 | 81.7 | 5A | Harzburgite | Lizardite |
|
|
Yes | Yes |
| 16R-1, 36–42 | 82.8 | 3B | Dunite | Lizardite |
|
|
Yes | Yes |
| 16R-2, 36–40 | 84.0 | 1 | Harzburgite | Lizardite | Talc | Amphibole | Yes | Yes |
| 16R-4, 9–13 | 86.7 | 1 | Gabbro | Albite | Chlorite | Amphibole | Yes | Yes |
| 18R-2, 118–121 | 94.5 | 11A | Dunite | Lizardite | Magnetite |
|
Yes | Yes |
| 18R-3, 0–5 | 94.6 | 1A | Dunite | Lizardite | Magnetite |
|
Yes | Yes |
| 19R-1, 54–57 | 97.5 | 2B | Harzburgite | Lizardite | Magnetite |
|
Yes | Yes |
| 19R-3, 0–6 | 99.8 | 1 | Harzburgite/Dunite | Lizardite | Magnetite |
|
Yes | Yes |
| 19R-2, 127–135 | 99.7 | 16 | Vein | Lizardite |
|
|
— | — |
| 21R-1, 31–35 | 106.9 | 3 | Gabbro | Albite, chlorite, quartz |
|
|
Yes | Yes |
| 21R-2, 21–24 | 108.3 | 5 | Gabbro | Plagioclase, chlorite |
|
Amphibole? Lizardite? | Yes | Yes |
| 23R-1, 53–57 | 116.7 | 4C | Gabbro | Plagioclase | Clinopyroxene | Lizardite | Yes | Yes |
| 26R-2, 16–22 | 132.1 | 2 | Gabbro | Plagioclase | Clinopyroxene | Chlorite, amphibole? | Yes | Yes |
| 28R-2, 28–32 | 141.7 | 1B | Gabbro | Plagioclase | Chlorite, amphibole |
|
Yes | Yes |
| 29R-1, 115–120 | 146.3 | 14 | Gabbro | Plagioclase | Chlorite, amphibole |
|
Yes | Yes |
Notes: Due to peak overlap, samples with identified lizardite may also contain chrysotile. Sample 209-1268A-21R-2, 21–24 cm: poor quality, high noise, low count rates. Qualifiers "major, minor, and trace" indicate relative abundances based on peak heights and do not necessarily reflect true relative proportions. ICP-AES = inductively coupled plasma–atomic emission spectrometry. ICP-AES data are available in Table T5. This table is also available in ASCII.