在许多斑岩铜矿矿床中，地表风化使得金属铜进一步富集。
In many porphyry copper deposits, additional enrichment of the metal has been caused by surficial weathering.
但由于构造活动及地表风化作用的影响，矿层在地下水的作用下，其保存情况及矿石类型形成了明显的分带性。
But due to the influence of the structural activities and weathering in the surface, under the action of underground water, the ore types and the preservation of ore seam showed obvious zoning.
然而，他补充道，还需要在确定金星地表如何重塑这个问题做出更多的努力，科学家需要确切地了解地表风化率如何影响辐射率。
He added, however, that in order to make even more progress in determining how Venus resurfaces, scientists need to learn exactly how weathering surface rates affect emissivity.
这一连串事件可以解释，为什么过去数十亿年来，所有喷发到地表的火成岩仍然原始而未风化。
This sequence of events would explain why any volcanic rocks that have erupted onto the surface in the past few billion years should still be unweathered and pristine.
指使材料从地表磨损、消耗的一组自然过程，包括风化、溶解、磨蚀、浪蚀、腐蚀和搬运。
The group of natural processes, including weathering, dissolution, abrasion, corrosion, and transportation, by which material is worn away from the earth's surface.
对其性能测试表明，其主要指标超过了普硅325水泥的要求，其主要缺点是抗风化能力较差，不适于地表工程。
A performance test show that the material has indexes exceeding with the requirement of 325 Portland cement but a shortage of poor weather resistance, which makes it unfit to use for ground works.
现今出露于中国北方地表的红色土壤是在红色古土壤和红色古风化壳上发育的，而且大多经历了不连续的成土过程。
In north of China, Latosol-like soils which were exposed to the earths surface were developed from red Paleosol and red paleo-weathered crust.
潜水河雨后地表径流由地表下潜水、雨水地面上径流、雨水风化层径流构成，三部分水均随河道流量的增减而增减。
Stormflow consists of phreatic water, surface runoff and weather horizon-passing rain. The rise and drop of their discharge are consistent with that of the river discharge after rain.
风化(weathering)作用：是指矿物、岩石在地表新的物理、化学条件下所产生的一切物理状态和化学成分的变化，是在大气及生物影响下岩石在原地发生的破坏作用。
Weathering means the physical and chemical change of minerals and rock under new physical and chemical condition. It is a change in original place affected by atmosphere and bioss.
本文应用随机介质模型，导出近地表表土及风化层中开挖圆形隧道引起地表移动及变形的有关预计公式。
Based on stochastic medium model, The formulas have been derived for predicting ground surface movement and deformation due to near-surface tunnel excavation.
川中丘陵区地表以紫色沙页岩风化形成的紫色土壤为主，基岩风化剥蚀过程与流失过程交替进行。该区垦殖率高，植被盖度低，地形破碎，土地利用结构复杂，土壤侵蚀严重。
Soil in hilly regions in the middle of Sichuan Province is mainly a type of purple soil which has been developed from the purple shale rock.
川中丘陵区地表以紫色沙页岩风化形成的紫色土壤为主，基岩风化剥蚀过程与流失过程交替进行。该区垦殖率高，植被盖度低，地形破碎，土地利用结构复杂，土壤侵蚀严重。
Soil in hilly regions in the middle of Sichuan Province is mainly a type of purple soil which has been developed from the purple shale rock.
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