| Dzhengutay section (Dagestan) Russia | 0.255 ± 0.035 | 0.23 / 0.279 | 2 | mudrock below the base of the carbon isotope excursion, initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| Dzhengutay section (Dagestan) Russia | 0.355 ± 0.018 | 0.327 / 0.389 | 9 | mudrock from the base of the carbon isotope excursion upwards, initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| Guru-Fatima section (Tajikistan) Tadjikistan | 0.331 ± 0.038 | 0.304 / 0.358 | 2 | mudrock below the base of the carbon isotope excursion, initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| Guru-Fatima section (Tajikistan) Tadjikistan | 0.344 ± 0.059 | 0.269 / 0.446 | 11 | mudrock from the base of the carbon isotope excursion upwards, initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| Kheu River section (Kabardino-Balkaria) Russia | 0.323 ± 0.003 | 0.318 / 0.328 | 7 | mudrock below the base of the carbon isotope excursion, initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| Kheu River section (Kabardino-Balkaria) Russia | 0.346 ± 0.023 | 0.299 / 0.375 | 23 | mudrock from the base of the carbon isotope excursion upwards, initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| IODP Site M0004A (Lomonosov Ridge) Océan Arctique (eaux internationales) | 0.449 ± 0.049 | 0.392 / 0.542 | 9 | organic mudrock below the ratio rise (390.66 to 403.95 m), initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| IODP Site M0004A (Lomonosov Ridge) Océan Arctique (eaux internationales) | 0.501 ± 0.054 | 0.417 / 0.562 | 6 | organic mudrock of the rise preceding the PETM (388.63 to 390.34 m), initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| IODP Site M0004A (Lomonosov Ridge) Océan Arctique (eaux internationales) | 0.431 ± 0.064 | 0.271 / 0.52 | 18 | organic mudrock of the PETM and above (378.20 to 386.13 m), initial ratio | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| NE Atlantic background carbonate sediments (core 23#12M) Océan Atlantique (eaux internationales) | 1.0369 ± 0.0417 | 0.9867 / 1.0728 | 4 | carbonate sediment (6-26 cm) | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 1.0078 ± 0.0151 | 0.9821 / 1.0211 | 6 | sediment, mixed layer (0-10 cm), core 343 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 0.7384 ± 0.1768 | 0.4191 / 1.0014 | 10 | sediment below the mixed layer (16-40 cm), core 343 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 0.1255 | | 1 | serpentinite fragment, core 343 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 1.0001 ± 0.043 | 0.9537 / 1.0387 | 3 | sediment, mixed layer (0-10 cm), core 316 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 0.5032 | | 1 | surface sediment with ultramafic detritus (0-1 cm), core 316 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 0.5835 ± 0.3535 | 0.2719 / 0.9676 | 3 | sediment below the mixed layer (20-26 cm), core 316 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 0.2213 ± 0.0817 | 0.1635 / 0.2791 | 2 | serpentinite and sulphide fragments, core 316 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 1.0528 ± 0.0149 | 1.039 / 1.0701 | 5 | sediment (0-17 cm), core 325 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
| Sediments beneath the Rainbow hydrothermal plume (Mid-Atlantic Ridge) Océan Atlantique (eaux internationales) | 1.0612 ± 0.0047 | 1.0576 / 1.069 | 5 | sediment (0-17 cm), core 329 | Cave et al. (2003), Deposition of osmium and other platinum-group elements beneath the ul… |
