caliche

基本解釋

Caliche crusts are secondary products formed by the dissolution of meteoric water on former lithified sediments and rocks during their exposure into subaerial vadose environments.
鈣結(jié)殼是土壤層之下的巖石在出露地表滲流帶環(huán)境內(nèi)受大氣雨水的溶解,竝通過上覆土壤層的淋濾而成的産物。
covered with caliche, a hard calcium-carbonate encrusted soil.
被硝酸鈉，和硬碳酸鈣覆蓋的土壤。
Caliche as a geological repository for atmospheric sulfate
大氣硫酸鹽作爲(wèi)地質(zhì)儲(chǔ)藏庫的生硝
ESR DATING OF CALICHE IN LAKE DEPOSIT FROM THE YANQING BASIN,BEIJING
北京延慶盆地湖相鈣質(zhì)層的電子自鏇共振（ESR）測年研究
IMAGE SCANNING ANALYSIS OF CALICHE MICRO-LAMINATION AND ITS SIGNIFICANCE TO THE DATING METHOD
礫石鈣膜顯微紋層的掃描圖像分析及其測年意義