Fig. 5: Major element sequestration rates for shallow-water glauconite formation during the Mesozoic and Cenozoic.
From: Impact of green clay authigenesis on element sequestration in marine settings
a Glauconite abundance on the shelf through time35. b Average composition (±2 SD) of glauconite over time35. c Variation in overall sedimentation rate typical for shelf areas53, 54. d–h Elemental sequestration rates associated with shallow-water glauconite formation through time (colored curves) and at Langenstein (black stars). Average sequestration rates (±2 SD) are highlighted by the gray shaded intervals. The calculations are based on constant sedimentation rates and a sediment density of 2.7 g cm−³ for each geological period.
