detritus; clastic material
Geological term for loose fragments of rock, minerals, or organic material produced by weathering and erosion.
Detritus carried by rivers accumulates to form an alluvial fan.
This stratum contains a large amount of volcanic clastic material.
volcaniclastic material; pyroclastic material
Compound of 砕 (さい, 'break, crush'), 屑 (せつ, 'fragment, scrap'), and 物 (ぶつ, 'thing, material'). The reading せつ for 屑 is a less common Sino-Japanese reading used in technical compounds.