Table T3. Semiquantitative EDS analyses. (See table notes.)
| Depth (mbsf) |
Particle | S (at%) |
Ti (at%) |
Fe (at%) |
Fe/S ratio |
Fe/Ti ratio |
Identified mineral phase(s) | TH calculated 2Ti/(Ti + Fe) |
TM calculated 3Ti/(Ti + Fe) |
|---|---|---|---|---|---|---|---|---|---|
| 14.35 | 1 | 10.47 | 0.00 | 9.14 | 0.87 | — | Greigite | — | — |
| 14.35 | 2 | 6.91 | 0.00 | 6.27 | 0.91 | — | Greigite | — | — |
| 14.35 | 3 | 8.15 | 0.00 | 6.82 | 0.84 | — | Greigite | — | — |
| 14.35 | 4 | 0.00 | 1.50 | 6.03 | — | 4.02 | Titanomagnetite | — | TM60 |
| 14.35 | 5 | 0.00 | 4.04 | 4.42 | — | 1.09 | Titanohematite | TH96 | — |
| 14.35 | 6 | 0.00 | 6.57 | 5.47 | — | 0.83 | Pseudobrookite/rutile | — | — |
| 14.35 | 7 | 0.00 | 0.00 | 9.14 | — | — | Magnetite | — | TM0 |
| 14.35 | 8 | 0.00 | 1.42 | 18.83 | — | 13.45 | Titanomagnetite | — | TM21 |
| 14.35 | 9 | 0.00 | 8.95 | 14.70 | — | 1.64 | Titanohematite | TH76 | — |
| 14.35 | 10 | 0.00 | 0.00 | 28.75 | — | — | Magnetite | — | TM0 |
| 23.84 | 11 | 1.89 | 0.47 | 9.90 | 5.24 | 21.06 | Mixed phase (titanomagnetite + sulfide) | — | TM14 |
| 23.84 | 12 | 5.67 | 0.00 | 3.43 | 0.60 | — | Pyrite | — | — |
| 23.84 | 13 | 15.44 | 0.49 | 10.24 | 0.66 | 20.90 | Mixed phase (pyrite + titanomagnetite) | — | TM14 |
| 23.84 | 14 | 0.00 | 4.84 | 8.01 | — | 1.65 | Titanohematite | TH75 | — |
| 23.84 | 15 | 0.00 | 0.00 | 15.98 | — | — | Magnetite | — | TM0 |
| 23.84 | 16 | 1.96 | 0.65 | 11.87 | 6.06 | 18.26 | Mixed phase (titanomagnetite + sulfide) | — | TM16 |
| 23.84 | 17 | 0.00 | 3.05 | 19.81 | — | 6.50 | Titanomagnetite | — | TM40 |
| 23.84 | 18 | 0.00 | 0.00 | 20.14 | — | — | Magnetite | — | TM0 |
| 23.84 | 19* | 0.00 | 1.94 | 13.25 | — | 6.83 | Titanomagnetite | — | TM38 |
| 23.84 | 20* | 0.00 | 0.00 | 16.86 | — | — | Magnetite | — | TM0 |
| 23.84 | 21* | 4.80 | 0.00 | 3.74 | 0.78 | — | Greigite | — | — |
| 23.84 | 22* | 5.37 | 0.00 | 4.04 | 0.75 | — | Greigite | — | — |
| 23.84 | 23* | 5.77 | 0.00 | 4.61 | 0.80 | — | Greigite | — | — |
Notes: Results give the elemental composition of the individual particles from the Site U1319 magnetic extracts of 14.4 and 23.8 mbsf. Particle numbers refer to numbers given in Figure F8. * = particle not shown in Figure F8. Titanohematite (TH) and titanomagnetite (TM) compositions calculated according to the stoichiometric formulas Fe2–yTiyO3 and Fe3–xTixO4, respectively. — = not applicable.
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