河口重金属的积累，相对来说并不严重这与输沙量大及高沉积速率有关。
The accumulation of heavy metals from sewage drainage in the estuary is not serious because of, partly, large silt discharge and high sedimentation rate.
幸运的是，在中国的一些特殊地理区域，的确存在末次间冰期的一些厚层黄土剖面，其沉积速率与分辨率都特别高。
Fortunately, in some special areas of China, there are some thick loess profiles with higher resolution and sedimentary rate, which were formed in the last interglacial.
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