We love these ice core marble sconces. They are just stunning and appear to hold many secrets just below the surface.
An ice core is a core sample that is typically removed from an ice sheet or a high mountain glacier. Since the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper, and an ice core contains ice formed over a range of years. Cores are drilled with hand augers (for shallow holes) or powered drills; they can reach depths of over two miles (3.2 km), and contain ice up to 800,000 years old.
The physical properties of the ice and of material trapped in it can be used to reconstruct the climate over the age range of the core. The proportions of different oxygen and hydrogen isotopes provide information about ancient temperatures, and the air trapped in tiny bubbles can be analysed to determine the level of atmospheric gases such as carbon dioxide. Since heat flow in a large ice sheet is very slow, the borehole temperature is another indicator of temperature in the past. These data can be combined to find the climate model that best fits all the available data.
Bulbs Included: Yes Shade Direction: Up & Down Dimmable: No Base Type: G4 Voltage: 220V Voltage: 110V Voltage: 90-260V Power Source: AC Body Material: Iron Color: Black Color: Gold Shade Type: Frosted Glass Light Source: LED Bulbs Material: Marble Certification: CCC Installation Type: Wall Mounted Warranty: 3 years Number of light sources: 2