... but SO cool.
"The geology of the Cote d’Or is complex but not inexplicable. During the time of the dinosaurs, the Jurassic Period of some 195 to 135 million years ago, what is now Burgundy was underwater. In this sea, countless small animals, such as oysters, mollusks of various types, sea urchins, chrinoids and brachiopods, lived, died, and were deposited on the bottom. The soil that has resulted is rich in these fossils. Clay, sand, and gravel, formed out of the decomposition and erosion of other soils, combined with the calcium carbonate in the water to deposit marl and other variations of mudstone. Elsewhere, a third type of rock was formed by the precipitation of carbonate of lime from seawater and its subsequent settling out to form oolitic limestone."
(C Coates, The Wines of Burgundy, 9)
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