| K-T Boundary, about 65 million years ago contains iridium anomaly from an asteroid impact thought to have caused dinosaur extinction. |
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| 5.25" x 2.75" Lower exterior is slurry from rocks cut from the mid-Atlantic Ridge at the Kane Fracture Zone. The band above it has some iridium from the Cretacious Tertiary boundary. Interior is a celadon glaze assembled from refined materials that was in a reducing atmosphere in the kiln; unburned fuel created smoke that made the glaze bluish green, a result of trapped carbon in the glaze. The thumbwell is filled with blue sea-glass. | | | 4.5" high x 3.125" wide The Earth crust slurry is on the exterior with the brush marks where some was removed while wet. The band above that is the sediment glaze from the iridium layer, aka K-T Band. Interior glaze assembled from refined materials is a traditional celadon. Blue glass thumbwell. | ||
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| 4.25" high x 3" wide Exterior dark glaze is the rock slurry from the Mid-Atlantic Ridge. The band under the lip is from the Cretacious-Tertiary Boundary. Interior glaze of shiny white, assembled from refined materials. Seaglass thumbwell. | | | 3.75" high x 3.2" wide Speckled brown band under the lip is the iridium anomaly aka the Cretacious Tertiary Boundary, and the brown area below that is the mid-Atlantic Ridge rock slurry. Interior shiny white and exterior blueat the base are glazes assembled from refined materials. | ||
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| 4.2" high x 2.25" wide Speckled brown below the writing is from the K-T Band and below that, smooth brown is rock slurry from the mid-Atlantic Ridge -- remagmized. Interior white and exterior matte blue are glazes assembled from refined materials. Sea glass in the thumbwell. | |||||
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