calcareous concretion
- 钙质结核;石灰结核
calcareous concretion
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Form and genetic dynamics characteristics of calcareous concretion in the Loess of northwestern Hebel province and its stratigraphy significance
冀西北黄土钙质结核形态及其成因动力学特征与地层环境意义
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The long axes of the ellipsoidal shaped calcareous concretion reflected the direction of movement of mineralizing groundwaters .
椭圆形的钙质结核的长轴方向反映了地下矿化水的流动方向。