Calera's technique, remniscent of how some corals produce reefs, is to filter carbon dioxide emissions through seawater to create a chalky carbonate byproduct.
The Herfa Neurode site is located 700 metres underground in a geological complex composed of impermeable, isolating rocks(potassium salts, chalk, clay, anhydrite).
Approximately 46% of diatom species survived the transition from the Cretaceous to the Upper Paleocene, a significant turnover in species but not a catastrophic extinction.
In practical terms this means that naturally occurring calcareous deposits, such as limestone, marl or chalk, which consist essentially of calcium carbonate(CaCO3), are required.
In the 1980s, palaeontologists examining a set of small, slender carnivores concluded that the Cretaceous fossils belonged to their own distinct tyrannosaur species.
进入白垩纪海的深渊;.
Into the abysses of the Cretaceous Sea;
你会发现许多岩层,白垩山脊和冷却的熔岩流。
You will find many rock formations, chalk ridges and cooled lava flows.
白垩-近纪.
Cretaceous- Paleogene.
面对不断的侵蚀,白垩悬崖高耸于波罗的海之上。
Facing constant erosion the chalk cliffs tower high above the Baltic Sea.
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