Petrography and geochemistry of the Dales Gorge banded iron formation: Paragenetic sequence, source and implications for palaeo-ocean chemistry

Geo- og miljøvidenskab

• ankerite 30%
• apatite 7%
• banded iron formation 100%
• basement rock 8%
• bicarbonate 7%
• byproduct 6%
• chemical 3%
• chemical composition 5%
• chert 16%
• continental crust 14%
• density current 7%
• diagenesis 7%
• dissolution 5%
• dolomite 21%
• ferrihydrite 9%
• geochemistry 61%
• gorge 79%
• hematite 22%
• hydrothermal activity 8%
• iron 10%
• lithology 12%
• magnetite 21%
• material 6%
• mineral 4%
• mineralogy 6%
• ocean 44%
• partitioning 6%
• petrography 81%
• provenance 7%
• quartz 5%
• remobilization 8%
• rock 7%
• seamount 8%
• secondary mineral 9%
• sedimentation 5%
• siderite 45%
• silica 6%
• source rock 7%
• talc 27%
• trace element 5%
• trend 3%
• upper crust 15%
• water 2%
• water column 6%
• weathering 6%