搬运作用

有关的成煤作用包括：泥炭的原地堆积&异地搬运作用、地壳旋回运动所引起的埋藏作用和成煤阶段的热变质作用。

While its geologic activities include peat accumulation and transportation , embedding activity caused by diastrophism and geothermal metamorphism of coal .

但该元素组合仅适用于干旱荒漠区及部分以机械风化、搬运作用为主的高寒山区等水系沉积物采样粒度较粗的地区。

Nevertheless , such an element association is only suitable for arid and desert areas and high and cold mountain areas mainly characterized by mechanic weathering and transportation where coarse-grained stream sediment samples are collected .

由于黄河水的长距离搬运作用，颗粒磨圆度高、表面强度低；孔隙率高，毛细作用剧烈。

It has high psephicity , low surface strengths , high porosity and intensive capillarity because of the long transport function of the water .

它是由热带暴雨期的片状流水与强风期的风搬运作用而堆积，再在淡水环境中沉淀胶结成松散的砂丘岩类。

It has been piled by transportation through laminar flow in tropic heavy rain seasons and strong wind in storm periods , and by deposition and cementation in the environment of fresh water , it was formed into loose dune rock .

重力搬运沉积作用形成的岩性地层圈闭对深水油气勘探具有非常重要的作用。

The stratigraphic trap formation by mass transport deposition ( MTD ) in the deepwater area is very important for the deepwater exploration and production .

此外，由于高地势的土壤养分经雨水冲刷、搬运等作用带到低地势，使坡地土壤养分的空间分布和地形有关。

In addition , as the soil nutrients at high geographical position were brought to the low by rain wash and transportation , thus making the space distribution of soil nutrients was related to topography .

跃移和悬移组分具有显著的双段式特征，反映了潮流的双向搬运和沉积作用；

The obvious twin leap and twin suspension show the the two-way transportation of tidal currents .

这两种类型元素在风成沙中呈现的含量低值揭示了其时干旱寒冷气候作用下风力的侵蚀搬运与堆积作用；

The low numerical value distribution of these two types trace elements in the Aeolian sand facies represents erosion and accumulation under wind force during the cold-dry climate .

海峡地区由于地形和水动力条件多变，沉积物分布的空间梯度大，有利于揭示不同搬运机制的作用和影响以及评价区域性和局部性的影响。

Because of the highly variable topological and hydrodynamic condifitions at a strait , the distribution of sediment is complex , with a large gradient in grain size parameters .

主要结论如下：（1）随着降雨的进行，雨滴打击和径流搬运的联合作用导致地表糙度降低。

The main results are listed as follows : ( 1 ) With the rainfall , the combined effects of the detachment by raindrop impact and the transport of runoff lead to lower surface roughness .