calcareous deposit

英

美

钙质沉着; 石灰性沉积物

The Siliceous-Calcareous-Argillaceous Rock Type Uranium Deposit in South Subzone of Western Qinling
西秦岭南亚带的碳硅泥岩型铀矿
The results show that surface tube cells ( surround cells, or spiral cells) of oogonium, after the egg cell fertilized, not only lack calcareous deposit thickening, but also wither away gradually so that they disappear finally.
结果表明：藏卵器外的管细胞（包围细胞或螺旋细胞）在卵细胞受精以后，不但没有钙的沉淀、加厚，而且还呈现出逐渐萎缩，最终消失。
Classification on features and water-flow energy of the terrestrial calcareous deposit in Guizhou
陆相碳酸钙沉积特征及水能量分类
Based on the field observation and the indoor experiment, the article discusses relationship between terrestrial calcareous deposit types and the condition of the water energy, and discusses quantitatively and qualitatively the water energy boundary among every kinds of calcareous deposit.
以野外观察及室内试验分析为基础，讨论了陆相碳酸钙沉积类型与水能量条件的相关关系，并定量和定性地讨论了各类型之间的水能量界线；
Geology lithological character of the research area is for the Triassic Period Jialing River group with Daye group calcareous rock, moreover distributes widely, the deposit thickness is big.
研究区地质岩性为三叠纪嘉陵江组和大冶组灰岩，而且分布广泛，沉积厚度大。