1. detritus; clastic materialGeology
Wikipedia definition
2. Detritus (geology)Detritus is a geological term used to describe particles of rock derived from pre-existing rock through processes of weathering and erosion. Detrital particles can consist of lithic fragments (particles of recognisable rock), or of monomineralic fragments (mineral grains). These particles are often transported through sedimentary processes into depositional systems such as riverbeds, lakes or the ocean forming sedimentary successions.
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Read “砕屑物” on Japanese Wikipedia
Read “Detritus (geology)” on DBpedia


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