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中文名稱:泥岩（RS07-012）

On The Surface Of Mudstone Concretion（RS07-012）野外產狀(成因):由岩石風化成的細泥，被河水帶進湖泊、沼澤或遠海等水流穩靜之地區時，終於得以沈澱下來，逐漸堆積成「泥層.....more

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and few in number. They were no match for dinosaurs, the large reptiles that ruled the surface.....more

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surface so they can grind up large amounts of food. The way that each cheek teeth grows one after.....more

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of pits, or effaced. Pygidium with 2 to 4 pairs of pleural ribs and spines; axial rings few. Surface.....more

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are often columnar or acicular with distinct striations often parallel to the crystal on the surface.....more

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on the Earth's surface, weathers into yellow Ferrimolybdite (Fe2(MnO4)3.8H2O), which is an important.....more

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back to the dawn of Earth's formation, when there were no oxygen on the surface and the atmosphere.....more

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pairs of prominent flat spines. Surface smooth or finely granulose. Bertillon pattern strong.....more

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furrows broad; border furrow shallow or obsolete, border narrow or absent. Surface with granules.....more

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. It is not easy for sulfur to maintain its form on the surface of the earth; it often reacts with every kind.....more

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