varve
/vɑːv/noun
- Geology a pair of thin layers of clay and silt of contrasting colour and texture which represent the deposit of a single year (summer and winter) in a lake. Such layers can be measured to determine the chronology of glacial sediments【地质】季候泥, 纹泥; （季候泥, 纹泥）年层。
派生词
varved
adjective词源
early 20th cent.; from Swedish varv 'layer'.