福井縣石徹白村の古生層
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概要
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The Shimozaisho alternation of limestones and clayslates is an unusual sedimentary mass located within the Hida gneiss terrain., The alternation is covered by later sediments and lavas; however, its relation to the Hida gneiss is indeterminable., Although the alternation of limestones and clayslates is both thermally and dynamically metamorphosed, some poorly preserved fossil corals and fusulines have been found in the Shimozaisho limestone, a member of the alternation., These fossils suggest Moscovian for the age of the limestone., The find of the Moscovian Fusulina Zone is a new discovery in the strata of the Hida Plateau., Because the Jurasso-Cretaceous Tetori group which overlies the Shimozaisho alternation is not metamorphosed, the alternation is thought to have been metamorphosed sometime between the late Paleozoic and early Mesozoic.,
- 日本地質学会の論文
- 1954-01-25