Field relationships and stable isotope geochemistry of concretions from James Ross Island, Antarctica

Gwyddorau Amgylcheddol a’r Ddaear

• concretion 100%
• Antarctica 70%
• stable isotope 69%
• geochemistry 65%
• dissolution 12%
• burrow 9%
• meteoric water 8%
• siltstone 8%
• cementation 8%
• sedimentation rate 8%
• mudstone 7%
• porewater 7%
• calcite 6%
• shell 6%
• cement (construction material) 6%
• methane 6%
• sandstone 6%
• fossil 5%
• Cretaceous 5%
• seawater 5%
• sulfate 5%
• carbonate 5%
• oxidation 5%
• carbon 4%
• mineral 4%
• basin 4%
• distribution 2%