Glacier Dome core
Annual layers from clear firn through compressed blue ice, isotopes logged per metre.
Floe is the console of the Sub-Zero Core Lab — every reading sits on a bright frosted pane, etched as depth strata, split by the one cleave-line that marks where the record changes.
Enter the core roomDepth bands stack from young firn down to bedrock. The cleave marks the band where the climate record breaks.
Annual layers from clear firn through compressed blue ice, isotopes logged per metre.
Wind-loaded layers with thin melt lenses; density rises smoothly until the basal shear.
Lake-floor sediment under the ice sheet — the deepest record on the shelf, queued for the next run.
One sharp diagonal crosses every reading. Above it, the ice is steady. Below, the chemistry breaks — and the warm spark flags the metre that needs a second hand.
The lab works in a glass cabin at altitude. The console is high-key on purpose — frosted white panes under cold blue light, so a reading is just as legible at noon on the col as it is in the dark of the core room.
| Depth | Site | Layer | δ¹⁸O | Face |
|---|---|---|---|---|
| 0–420 m | Dome C | Holocene firn | −34.1 | logged |
| 420–980 m | Dome C | Glacial dust | −39.7 | logged |
| 980–1842 m | Dome C | Cleave band | −41.3 | live face |
| 0–1190 m | Col Ridge | Wind pack | −36.2 | logged |
| 2110–2310 m | Lake Floor | Sub-glacial sed | — | queued |
Every metre of the record, etched on bright frost, with the one cleave-line that tells you where to look.
Enter the core room