|
Core, section,
interval (cm) |
Series
|
Plagioclase
(An mol%) |
Augite
(Mg#) |
Olivine
(Fo mol%) |
Chromian spinel
(Cr#) |
||||
|---|---|---|---|---|---|---|---|---|---|
|
Average
|
Range
|
Average
|
Range
|
Average
|
Range
|
Average
|
Range
|
||
| 163X- | |||||||||
| SEG21D-1-1 (Piece 1A, 9–13) | Upper | 65 | 64–66 | 75 | 73–77 | — | — | — | — |
| SEG22A-1-1 (Piece 3A, 15–19) | Upper | 65 | 64–66 | 76 | 74–77 | — | — | — | — |
| SEG24A-1-1 (Piece 1, 0–4) | Upper | 76 | 73–78 | 75 | 75–76 | — | — | — | — |
| SEG24A-1-1 (Piece 2, 4–8) | Upper | 86 | 84–87 | 81 | 78–83 | — | — | — | — |
| SEG26A-1-1 (Piece 6G, 85–89) | Upper | 77 | 75–79 | 76 | 75–77 | — | — | — | — |
| SEG27A-1-1 (Piece 5A, 47–51) | Upper | 72 | 70–74 | 78 | 77–79 | — | — | — | — |
| SEG28A-1-1 (Piece 5, 28–32) | Upper | 70 | 67–72 | 78 | 77–79 | — | — | — | — |
| SEG29A-1-1 (Piece 4B, 26–30) | Upper | — | — | 75 | 74–77 | — | — | — | — |
| SEG31A-1-1 (Piece 1E, 61–65) | Upper | 71 | 69–74 | 76 | 73–78 | — | — | — | — |
| SEG36A-1-1 (Piece 2B, 11–15) | Lower | — | — | — | — | — | — | — | — |
| SEG40A-1-2 (Piece 1, 10–14) | Lower | 87 | 86–88 | — | — | — | — | 0.524 | 0.518–0.534 |
| SEG41A-1-1 (Piece 1C, 16–20) | Lower | 79 | 78–80 | 77 | 74–80 | — | — | — | — |
| SEG42B-1-1 (Piece 2, 7–8) | Lower | 89 | 89–90 | — | — | — | — | — | — |
| SEG42C-1-1 (Piece 5, 41–45) | Lower | 83 | 79–87 | 85 | 84–86 | — | — | — | — |
| SEG43A-1-1 (Piece 4, 11–15) | Lower | 87 | 85–89 | — | — | — | — | 0.449 | 0.445–0.454 |
| SEG44A-1-1 (Piece 1B, 39–42) | Lower | — | — | — | — | 75 | 68–76 | 0.422 | 0.418–0.426 |
| SEG45A-1-1 (Piece 6, 45–49) | Lower | 76 | 75–77 | 82 | 80–83 | — | — | — | — |
| SEG47A-1-1 (Piece 9, 70–74) | Upper | — | — | — | — | — | — | — | — |
| SEG51C-1-1 (Piece 6, 25–29) | Upper | 58 | 57–60 | 71 | 68–77 | — | — | — | — |
| SEG52A-1-1 (Piece 2B, 16–20) | Upper | — | — | 76 | 72–78 | — | — | — | — |
| SEG53B-1-1 (Piece 2, 85–115) | Upper | 77 | 76–78 | 77 | 64–80 | — | — | — | — |
| SEG54A-1-1 (Piece 3, 14–18) | Upper | 82 | 80–83 | 78 | 74–80 | — | — | — | — |
| SEG55B-1-1 (Piece 4, 27–31) | Upper | 75 | 70–78 | — | — | — | — | — | — |
| SEG56A-1-1 (Piece 4, 14–18) | Upper | 71 | 69–73 | — | — | 69 | 68–70 | — | — |
| SEG57A-1-1 (Piece 5, 18–22) | Upper | 67 | 64–71 | — | — | 62 | 60–67 | — | — |
| SEG58A-1-1 (Piece 1C, 9–13) | Upper | 66 | 65–67 | 73 | 72–74 | 61 | 58–65 | — | — |
| SEG60B-1-1 (Piece 6A, 93–97) | Upper | 64 | 60–67 | 79 | 75–80 | — | — | — | — |
| SEG61B-1-1 (Piece 1B, 19–23) | Upper | 63 | 56–70 | 75 | 74–76 | 54 | 52–56 | — | — |
| SEG61B-1-1 (Piece 8, 95–99) | Upper | 65 | 63–66 | 76 | 75–77 | 68 | 65–71 | — | — |
| SEG62A-1-1 (Piece 2, 13–17) | Upper | 69 | 67–71 | 77 | 76–78 | — | — | — | — |
| SEG63A-1-1 (Piece 3, 18–20) | Upper | 78 | 77–78 | 77 | 73–80 | — | — | — | — |
| SEG64B-1-1 (Piece 1, 0–4) | Upper | 67 | 65–69 | 70 | 66–72 | 69 | 63–70 | — | — |
| SEG65B-1-1 (Piece 4, 23–24) | Upper | — | — | — | — | — | — | — | — |
| SEG76A-1-1 (Piece 2B, 8–10) | Lower | 68 | 68 | — | — | — | — | — | — |
| SEG76B-1-1 (Piece 3, 18–19) | Lower | — | — | — | — | 68 | — | 0.592 | 0.585–0.605 |
| SEG77A-1-1 (Piece 3, 22–26) | Lower | — | — | — | — | — | — | 0.568 | 0.503–0.658 |
Notes: See "Appendix B" in the "Explanatory Notes" chapter for details. An = anorthite, Fo = forsterite. Mg# = 100 x Mg/(Mg + Fe) with all iron as Fe2+, Cr# = Cr/(Cr + Al + Fe3+). Gneiss (Sample 163X-SEG32A-1-1 [Piece 2B, 21–23 cm] and sandstone (Samples 163X-SEG38B-1-1 [Piece 2, 8–12 cm] and 163X-SEG80B-1-1 [Piece 2, 39–42 cm]) thin sections were prepared but not listed here. — = phase not present, not analyzed, or replaced by secondary materials.