岩石分解可以通过生物机制和土壤中部分高压二氧化碳得到加速。
Breakdown of the source rock might be accelerated by biological mechanisms and by the high partial pressure of CO2 in soils.
当岩石分解成为颗粒够成沙滩时，颜色则是由铁元素氧化物的存在与否决定的。
When these rocks break down into the grains that make up the sand on our beaches, their colour is mostly determined by the presence or absence of iron.
随着岩石的分解，磷被缓慢地释放出来，并散布到土壤中。
Phosphorus is slowly released as the rocks are broken down and it gets spread around into the soil.
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