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

Geoscience Australia Data provides stable isotope and chemical data for thermal waters and volcanic exhalations in the Rabaul caldera, Papua New Guinea. The dataset includes D/H and O18/O16 ratios, anion ratios, and trace metal contents used to investigate the origin of geothermal fluids. It was last updated on 2026-05-14.

Use Cases

• Modeling geothermal fluid mixing based on stable isotope ratios mentioned in the description
• Investigating the leaching potential of geothermal fluids based on Fe, Mn, and Zn values
• Comparing meteoric water versus marine water contributions to thermal springs
• Analyzing the chemistry of acid, mineralized geothermal waters near the surface

Strengths

• Data includes stable isotope ratios (D/H and O18/O16) for distinct geographic areas
• Contains trace metal values (Fe, Mn, Zn) for assessing leaching potential
• Compares findings from stable isotopes with those from anion ratio and trace metal contents

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data freshness should be verified despite the 2026 update date

Provenance

Source

Geoscience Australia Data

Collection Method

Chemical and stable isotope analysis of water and gas samples.

Freshness

Last updated 2026-05-14 04:16:54.068048

Geography

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