Not backfilling silt, corruption and graft, permafrost soil organic matter.

不得回填淤泥、腐植土、冻土及有机物质。

youdao

The geological environmental system of the lake is an organic whole which compose of three interactive factors: tectonic subsidence, silt deposit and embanked reclamation.

本文将洞庭湖地质环境系统看作构造沉积、泥沙淤积、围堤垦殖三个要素相互作用的有机整体。

youdao

The Lower Holocene in the Xiaoshan-Yuhang area, Zhejiang, is composed of fine sand, silt and clay beds. They are rich in organic matter and constitute an important "gas source formation".

前言： 浙江萧山—余杭地区全新统下部粉细砂、 淤泥质粘土层有机质丰富，是重要的“生气层系”，所夹的贝壳层和砂层是主要的“储气层”。

youdao

The soil should be full of loam, a mixture of sand, silt,clay and organic material.

VOA: special.2009.04.07

The council said two companies were applying to Mendip district council for permission to test drill for the gas, which is found in shale formed from deposits of mud, silt, clay and organic matter.

FORBES: Not a Good Argument Against Fracking