Geochemical data from sediment cores collected in 2022 during the EMAN7 expedition at Hola Trough off the Vesterålen coast, northern Norway. The dataset includes measurements for carbon-nitrogen geochemistry, foraminifera geochemistry, and pore water chemistry from cores collected via gravity, push, and blade coring. It was authored by Claudio Argentino and is hosted by DataverseNO.
Use Cases
- Modeling carbon and nitrogen cycling based on TOC, TNd, d13C_org, and d15N_TNd measurements.
- Investigating anaerobic oxidation of methane (AOM) signatures using pore water sulfate, DIC, and d13C_DIC data.
- Studying paleoenvironmental conditions from foraminifera geochemistry (d13C, d18O).
- Mapping seafloor geochemical gradients using the provided core location data.
Strengths
- Includes data from three distinct coring methods: gravity cores (6 m long), push cores (~60 cm), and blade cores (up to 32 cm).
- Provides high-resolution sampling with sediment sliced onboard every centimeter.
- Covers multiple geochemical analyses: carbon-nitrogen, foraminifera, and pore water chemistry.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- EMAN7 expedition on R/V Kronsprins Hakon, using ROV Ægir6000 operated by the Norwegian Marine Robotics Laboratory (NORMAR).
- Collection Method
- Sediment cores collected via gravity coring and ROV-guided push and blade coring, sliced onboard for analysis.
- Time Range
- 2022
- Freshness
- Last updated 2026-04-21 02:26:19; freshness should be verified.
- Geography
- Hola Trough, offshore the Vesterålen coast, northern Norway.