Pseudoconglomerate
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A type of rock formed by erosion of water or by turbidity currents, in which fragments of unconsolidated mudstone or other sediments are incorporated into sediments of roughly the same age, forming gravel-like rocks. The edges of the rock fragments are often rounded off during transport through the water, but they can also be irregular in shape. They are characteristic of turbidity current deposits. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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水による浸食あるいは混濁流によって生じた，未固結の泥岩などの堆積物の岩片が，ほぼ同時期の堆積物中に取込まれて礫状になっているもの。水中の運搬時に岩片表面のかどが取れて，円礫状になることが多いが，不規則な形をとることもある。混濁流堆積物中に特徴的にみられる。
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