Guru-Fatima section (Tajikistan)
Tajikistan (Peri-Tethys), Tadjikistan
Sediments
- Type
- Sediment
Section of organic-rich mudrocks (up to 18 % organic carbon) from the Paleocene-Eocene Thermal Maximum (55.9 Ma) studied by Dickson et al. (2015) for seawater 187Os/188Os.
187Os/188Os isotope ratio, no unit Values of the same system
Standard : Rapport absolu, sans standard de référence
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.331 ± 0.038 | 0.304 / 0.358 | 2 | mudrock below the base of the carbon isotope excursion, initial ratio Mean and standard deviation recalculated from 2 analyses, 0.304 to 0.358 (404 0.304; 405 0.358). Negative depths of the table, below the base of the carbon isotope excursion. Two levels below the base of the excursion (0.304 and 0.358), while the text speaks of values about 0.32. | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
| 0.344 ± 0.059 | 0.269 / 0.446 | 11 | mudrock from the base of the carbon isotope excursion upwards, initial ratio Mean and standard deviation recalculated from 11 analyses, 0.269 to 0.446 (406 0.316; 406 (2) 0.317; 407up 0.269; 407up (2) 0.275; 407down 0.292; 407a 0.328; 407b 0.370; 408 0.383; 409 0.423; 409 (2) 0.446; 410 0.369). Brief drop to 0.27-0.29 in level 407 (0.3 m), then a rise up to 0.423-0.446 (409), above the 0.38-0.39 maximum given in the text. PETM isochron at 0.357 ± 0.039 (53.4 ± 2.5 Ma, MSWD 18), all data at 0.432 ± 0.092 (51.2 ± 6.2 Ma, MSWD 118). | Dickson et al. (2015), Evidence for weathering and volcanism during the PETM from Arctic … |
Deposits of the same type
- Pebble iron oxide precipitates United States
- Laohugou No. 12 Glacier cryoconite China
- Yuzhufeng Glacier cryoconite China
- Bayi Glacier cryoconite China
- Qiyi Glacier cryoconite China
- Yulong Snow Mountains glacier cryoconite China
- Hailuogou Glacier (Mount Gongga) cryoconite China
- Dangxiong Glacier cryoconite China
Cite this page
IsoFind Atlas (2026). Guru-Fatima section (Tajikistan), isotope signatures. https://www.isofind.tech/isotopes/en/sites/coupe-de-guru-fatima-tadjikistan/ (accessed 2026-10-20).
@misc{isofind2026gurufatimasectiontajikistanis,
title = {Guru-Fatima section (Tajikistan), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/coupe-de-guru-fatima-tadjikistan/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20