SOLD: Converging and Diverging Plate Boundaries
SKU:
FP-53
$0.00
12" x 1.75"
Center of sea-glass is surrounded by an area of chattered porcelain clay that was glazed with rock slurry from the Kane Fracture Zone, an area of the Mid-Atlantic Ridge. Outside of that is fine-grained sediment from the Costa Rican accretionary prism, an area of subducting plates under immense pressure from friction. That evidence, the band at the rim, is speckled from a process of drying the super-finely grained mud that tectonic plates produced from friction and pressure . . . it curled as you might have seen at a dried river-bed. That dried curled sediment didn't stand a chance of remaining unchanged once the kiln atmosphere glowed brightly at yellow heat of 2300 degrees fahrenheit. Imagine! It went limp and slumped and relaxed down onto the porcelain clay that was also about to slump--but kiln went off in time to stop that and left the glistening evidence of mud turned to rock. A window into what Earth is doing beneath us now.
Center of sea-glass is surrounded by an area of chattered porcelain clay that was glazed with rock slurry from the Kane Fracture Zone, an area of the Mid-Atlantic Ridge. Outside of that is fine-grained sediment from the Costa Rican accretionary prism, an area of subducting plates under immense pressure from friction. That evidence, the band at the rim, is speckled from a process of drying the super-finely grained mud that tectonic plates produced from friction and pressure . . . it curled as you might have seen at a dried river-bed. That dried curled sediment didn't stand a chance of remaining unchanged once the kiln atmosphere glowed brightly at yellow heat of 2300 degrees fahrenheit. Imagine! It went limp and slumped and relaxed down onto the porcelain clay that was also about to slump--but kiln went off in time to stop that and left the glistening evidence of mud turned to rock. A window into what Earth is doing beneath us now.
