JC254 Cruise: 3D Seismic Data from Mid-Atlantic Ridge Hydrothermal Field

Mid-Atlantic Ridge data comprises 3D wide-angle seismic recordings from 18 ocean bottom nodes collected during the RRS James Cook cruise JC254 in November 2023. The data were acquired at the 13°30'N Oceanic Core Complex and Semenov Hydrothermal Field, shot in six sequences along 15 profiles using GI-guns. This raw SEGY dataset aims to derive a seismic velocity structure to investigate crustal lithologies and the interplay of tectonic faulting, magmatism, and hydrothermal circulation.

Use Cases

• Deriving seismic velocity structure of an oceanic core complex based on 3D wide-angle data.
• Investigating crustal or mantle lithologies from raw four-component SEGY recordings.
• Analyzing the interplay between tectonic faulting, magmatism, and hydrothermal circulation at ultramafic-hosted systems.
• Studying shot sequences and profiles for seismic reflection and refraction analysis.

Strengths

• Data includes recordings from 18 ocean bottom nodes, providing a multi-point 3D array.
• High-resolution sampling at 2000 Hz with a controlled shot interval of ~30 m.
• Data collection was part of a funded strategic research project (NERC ULTRA grant NE/S004068/1).

Limitations

• Key metadata such as row count, file size, license, and author are missing or conflicting across platforms.
• Data is provided in raw SEGY format, likely requiring significant processing and specialized software for analysis.
• The dataset description is repeated verbatim across platforms, suggesting limited independent curation.

Provenance

Source

RRS James Cook cruise JC254, November 2023.

Collection Method

Acquired using two GI-guns as seismic sources and recorded by ocean bottom nodes.

Time Range

November 2023

Freshness

2026-03-25 16:00:27.972237

Geography

Mid-Atlantic Ridge at 13°30'N, specifically the 1330 Oceanic Core Complex and Semenov Hydrothermal Field.