Figure 16-20 shows the good correlation observed between the magnetic field and the gold values over a muck-covered placer in this area . 图16-20表明了此地区腐殖土覆盖下砂积矿床上面的磁场和含金量之间的良好对比关系。
2.
Continental humus soil 大陆腐殖土
3.
Habitat and ecology : on rocks covered with litter under forest , alt . ca . 300 m . flowering : mar . - may 生境与生态：生于溪旁林下有腐殖土的岩石上，海拔约300米。花期： 3 - 5月。
4.
Figure 16 - 20 shows the good correlation observed between the magnetic field and the gold values over a muck - covered placer in this area 图16 - 20表明了此地区腐殖土覆盖下砂积矿床上面的磁场和含金量之间的良好对比关系。
5.
The earth surface of the region across it is mostly thicker humus soil or leaf falling covering layer , and has good heat reserving property , it is mostly weathering shingle , soil - aggregate mixture , and clay - gravel 0 . 5m - 4 . 0m under it , and weathering rock 所经地区的地表多为较厚的腐殖土或落叶覆盖层，其保温性良好，下层0 . 5 ? 4 . 0米多为风化沙砾、碎石土和砾石土， ， 4 . 0米以下为风化岩石。
6.
For weeks at a time they would hold on steadily , day after day ; and for weeks upon end they would camp , here and there , the dogs loafing and the men burning holes through frozen muck and gravel and washing countless pans of dirt by the heat of the fire 有时他们会一天接一天，一连走好几个星期；有时则随处扎营，停留几个星期，人们用火在冻结的腐殖土和沙层上钻洞，淘洗数不清的盘盘泥沙，狗则无所事事地闲逛。
