Pacific, DSDP Site 313 (Mid-Pacific Mountains): nannofossil ooze
North Pacific, Océan Pacifique (eaux internationales)
Sediments
- Type
- Sediment
Surface marine sediment analysed by Ishikawa and Nakamura (1993); δ11B of modern sediments controlled by mixing of continental detritus (illite), marine smectite, biogenic carbonates and silica. Late Pliocene nannofossil ooze (6.5 m), 58 % carbonate soluble in 0.1 N HCl.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −3.8 ‰ | 1 | nannofossil ooze (bulk) Single analysis (DSDP 313 1-5). 54.8 µg/g B. | Ishikawa & Nakamura (1993), Boron isotope systematics of marine sediments, Earth and Plan… | |
| 8 ‰ | 1 | biogenic carbonate (HCl-soluble fraction) Single analysis (DSDP 313 1-5). 15.0 µg/g B. | Ishikawa & Nakamura (1993), Boron isotope systematics of marine sediments, Earth and Plan… | |
| −6.6 ‰ | 1 | pelagic clay (HCl-insoluble residue) Single analysis (DSDP 313 1-5). 107 µg/g B. | Ishikawa & Nakamura (1993), Boron isotope systematics of marine sediments, Earth and Plan… |
Deposits of the same type
- North Pacific, DSDP Site 165: pelagic clay Océan Pacifique (eaux internationales)
- Central equatorial Pacific, station GH 82-4 B72: radiolarian ooze Océan Pacifique (eaux internationales)
- Pebble iron oxide precipitates United States
- Eastern equatorial Pacific, ODP Site 677: siliceous and calcareous oozes Océan Pacifique (eaux internationales)
- Cariaco Basin, core-top sediment PL07-111Bx Venezuela
- Cariaco Basin, core-top sediment PL07-105Bx Venezuela
- Cariaco Basin, core-top sediment PL07-22Bx Venezuela
- Cariaco Basin, core-top sediment PL07-82Bx Venezuela
Cite this page
IsoFind Atlas (2026). Pacific, DSDP Site 313 (Mid-Pacific Mountains): nannofossil ooze, isotope signatures. https://www.isofind.tech/isotopes/en/sites/pacifique-site-dsdp-313-monts-mid-pacific-boue-a-nannofossiles/ (accessed 2026-10-19).
@misc{isofind2026pacificdsdpsite313midpacificm,
title = {Pacific, DSDP Site 313 (Mid-Pacific Mountains): nannofossil ooze, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/pacifique-site-dsdp-313-monts-mid-pacific-boue-a-nannofossiles/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19