Sunday, July 26, 2009
Thursday, July 9, 2009
Petrified Forest, no no, not from Slytherin's basilisk just from Jurassic ash and whatnot
"A very curious place, Curio Bay has a fossil forest that dates back to the Jurassic period. The fossilised trees you can see here were alive around 180 million years ago, when New Zealand was part of the Gondwanaland super continent. Scientists have identified tree ferns, cycads and trees which resemble New Zealand kauri and matai." -NewZealand.com
Moeraki Boulders
"The Moeraki Boulders are huge spherical stones that are scattered over the sandy beaches, but they are not like ordinary round boulders that have been shaped by rivers and pounding seas. These boulders are classed as septarian concretions, and were formed in ancient sea floor sediments. They were created by a process similar to the formation of oyster pearls, where layers of material cover a central nucleus or core. For the oyster, this core is an irritating grain of sand. For the boulders, it was a fossil shell, bone fragment, or piece of wood. Lime minerals in the sea accumulated on the core over time, and the concretion grew into perfectly spherical shapes up to three metres in diameter.The Moeraki Boulders are huge spherical stones that are scattered over the sandy beaches, but they are not like ordinary round boulders that have been shaped by rivers and pounding seas. These boulders are classed as septarian concretions, and were formed in ancient sea floor sediments. They were created by a process similar to the formation of oyster pearls, where layers of material cover a central nucleus or core. For the oyster, this core is an irritating grain of sand. For the boulders, it was a fossil shell, bone fragment, or piece of wood. Lime minerals in the sea accumulated on the core over time, and the concretion grew into perfectly spherical shapes up to three metres in diameter." -New Zealand's Information Network
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