Stable Isotope and Chemical Data for Volcanic Thermal Waters in Rabaul Caldera

Stable isotope and chemical data for thermal waters and fumarolic exhalations from the Rabaul caldera in Papua New Guinea. The dataset, hosted by the Australian Ocean Data Network, includes D/H and O18/O16 ratios, anion ratios, and trace metal contents (Fe, Mn, Zn) to investigate water source mixing. It was last updated on 2026-04-16.

Use Cases

• Modeling geothermal water source mixing based on stable isotope ratios (D/H, O18/O16).
• Investigating the leaching potential of geothermal fluids based on trace metal contents (Fe, Mn, Zn).
• Comparing geochemical signatures from different sites (Matupi Harbour, Sulphur Creek, Tavurvur, Rabalankaia) to understand local hydrological processes.

Strengths

• Data includes multiple geochemical indicators: stable isotope ratios, anion ratios, and trace metal contents.
• Samples are from distinct geographic areas within the Rabaul caldera, allowing for spatial analysis.
• Dataset is hosted by the authoritative Australian Ocean Data Network.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific study sites in Rabaul caldera.

Provenance

Source

Australian Ocean Data Network

Collection Method

Chemical and isotopic analysis of water and gas samples collected from thermal springs and fumaroles.

Freshness

Last updated 2026-04-16 08:17:43.142846; freshness should be verified.

Geography

Rabaul caldera, New Britain, Papua New Guinea (specifically Matupi Harbour, Sulphur Creek, Tavurvur, and Rabalankaia volcanoes).