chemical weathering 中文意思是什麼
chemical weathering
解釋
化化- chemical : adj 化學的，化學作用的；應用化學的，用化學方法獲得的。n 〈常 pl 〉化學製品；藥品。 fine chemicals...
- weathering : 大氣暴露
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Clays are produced by mechanical and chemical weathering and primarily colloidal in size.
粘土是由機械和化學的風化作用形成，主要是膠粒大小。 -
The intense eluviation and weathering of soil with groundwater and run - off result in the enhancing of capacity of transference of some elements, such as si, al, fe, mn. the chemical reactions of the colloid particles in the soil water make those crannies or holes filled by some epigenetic clay minerals and quartz. then a great deal of white reticulate clay comes into being in the quaternary laterite of the dongting basin
地下水和地表水強烈的淋溶作用使土壤中硅鋁鐵錳等元素的遷移能力增強，土壤膠體粒子之間的化學反應，使得這些孔隙空間在後期逐漸被次生黏土礦物和石英所充填，最終，在洞庭盆地第四系紅土地層中形成大量的蠕蟲狀和根狀白色網紋。 -
During the weathering of granite, groundwater from the granitoid weathering crust have special chemical compositions
花崗巖的風化過程，使其風化殼地下水具有比較特殊的水化學組成。 -
For the mass balance equations, the average mechanical denudation rates would be estimated based on chemical weathering rates for the major basins of china
研究發現綜合巖性整體上控制了中國主要流域盆地化學風化率的大小，但化學風化率一定程度上也受制於流域巖石的化學風化進程。 -
This paper firstly reviews two different kinds of terrestrial erosion ( the mechanical and chemical weathering mechanisms ), discusses their respective roles in providing carbon to the river, and compares the differences between the monsoon and non - monsoon drainage basins in flux and the characteristic of the riverine carbon transport
首先就機械和化學風化兩種不同的陸地侵蝕機制在提供河流碳源方面所發揮的不同作用作了詳細論述，並比較了季風流域和非季風流域間河流碳輸移在通量及性質上的差異。 -
But in contrast of the research of chemical weathering of other rocks, such as granites and basalts, the research of chemical weathering of black shales both in width and depth still remains much to advance. after reading and investigating widely, we selected lower - cambrian black shales and their weathering profiles in hunan province as research objects of our work at first. then, based on field investigation of weathering status of lower - cambrian black shales and it ' s relationship with soil composition and human activities in hunan, we studied changes of chemical composition such as major and trace elements before and after weathering of black shales by comparison
根據文獻閱讀和野外調查，本文選擇了湖南安化、桃江、望城等地下寒武統黑色頁巖及有關風化剖面作為研究對象，並在查明湖南下寒武統黑色頁巖的風化現狀及其與土壤組成、人類活動的關系的基礎上，對比研究了黑色頁巖風化前後主量和微量元素等化學組成的變化，探討了元素的富集和遷移轉化機制以及黑色頁巖風化與區域環境質量的關系，得出了如下幾點主要成果和認識： （ 1 ） ti是黑色頁巖風化過程中的「不活動」元素，可作為參照元素，對其它元素的活動性進行質量平衡計算。 -
A combined effect of climate, relief, integrated lithology, vegetation and cultivated area seemed to explain the variability of modern chemical weathering and mechanical denudation rates
相比而言，西江和北江流域巖石的整體化學風化進程、 2大類巖性的化學風化程度均較之長江、黃河流域強烈的多。 -
In fact, as a very important part of material geochemistry cycle, chemical weathering and mechanical denudation plays a crucial role in affecting and changing the surface continent deeply
扣除大氣降水、人類活動、大氣co :等非巖石風化來源的物質后得到了中國17個主要流域盆地較為準確的化學風化率數值。 -
The main factors influenced fractures development are the tectogenesis, the physical weathering and the chemical dissolution
影響裂縫發育的主要因素是構造、物理風化和化學淋溶作用。 -
Many studies had attempted to characterize chemical weathering process by focusing on geochemisty of river particulate and sediment. the sediment geochemistry may reflect and compare with the carbonates and silicates weathering degree by introducing the chemical index of alteration ( cia ) and new sediment index of variation ( siv ) and elemental molar abundance ratio of the sediment. the one main objective of this study would provide and compare the relative weathering intensities of silicates and carbonates with the different basins
2沉積物地球化學與化學風化進程和機械剝蝕率化學風化指數與化學風化率屬于表徵化學風化作用意義不同的函數，前者為相對概念反映流域巖石在原巖基礎上己發生淋溶作用的深度，主要受到了氣候因子的深刻影響（中國流域沉積物化學風化指數由北到南呈有規則的遞增序列，氣候因子對風化進程的影響掩蓋了巖性的巨大差異） ，而化學風化率含義是指單位流域面積巖石風化淋溶產生的離子絕對總量。 -
Correlations between strontium isotope of river water and chemical weathering in karst areas, guizhou province
貴州河流河水的鍶同位素與喀斯特地區化學風化作用 -
On the paas - normalized plots, the parent granite and the granite weathering crust are enriched in lree without ce anomaly. while the groundwaters are also enriched in lree, they display significant negative ce anomaly, indicating the fractionation of ce during water - rock interaction. based on the study of two profiles of granitoid weathering crust, we concluded that ree concentrations in the groundwaters from the granitoid weathering crust are likely related to the continued chemical weathering, as well as the ree concentrations in the crust near the water table, clay concentration and the wate r ph values
地下水與母巖、風化殼稀土的paas標準化分佈模式基本相似，呈lree富集型，母巖中無ce異常，而水樣中有ce負異常，表明ce在水巖作用過程中發生明顯的分異；通過研究兩個典型花崗巖風化殼剖面發現，地下水的稀土含量與連續的化學風化，以及水位附近剖面上的稀土含量、粘土礦物含量以及水的ph值等有關。 -
New estimates of carbonate and silicate weathering fluxes and associated with co _ ( 2 ) consumption budget were given in the major drainage basins of china where previous information was indeed limited. an attempt was also made to calculate chemical weathering rates of silicates and carbonates per unit area
中國主要流域盆地巖石化學風化的年均大氣co :消耗量1375 . 91x109mol （佔世界巖石風化年均消耗co :總量的6 . 55 % ） 、轉移的碳量為1 . 65又107t碳，其中碳酸鹽和硅酸鹽類化學風化消耗的大氣co :量分別佔85 %和15 % 。 -
The paper focused on consumption of atmospheric co _ ( 2 ) through rock weathering and weathering reactions what were attributable for dissolved loads in the major basins of china. generally, dissolved loads were preferentially considered to evaluate chemical weathering relative to river - borne particulate / sediment because they are directly from source rock weathering
中國主要流域盆地巖石化學風化的大氣co :消耗率通常較高，而且中國主要流域盆地整體上碳酸鹽類的風化溶解對河水化學的影響程度明顯強于硅酸鹽類，這是中國主要流域盆地較為突出的特徵。 -
The second stage is stage of the matter transfers the activated matter, that is to say, minerals build up their surface area after passing though physical weathering, maifan stone form a lot of clay mineral, oxide, oxhydroxide and collide mineral after passing though chemical weathering. it makes nutrition elements transform from crystal state to adsorption state and it expands the activation of mineral, in the latter stage, it makes maifan stone have many special physicochemical adjusting character, for example, ph and foi bi - directional absorptive and ion exchange character, so these characters expand maifan stone ' s uses
第二階段為物質轉變的活性階段，即通過物理風化增大表面積、通過化學風化形成大量粘土礦物、氧化物和氫氧化物及膠體礦物，使營養元素由結晶態轉變為吸附態，從而大大增加了其活性。在後一過程中麥飯石還形成了許多特殊的物理化學性質，如ph值和f _ （ o2 ）的雙向調節性，吸附性和離子交換性等，從而擴大了其用途。 -
( 2 ) cia can not reflect the degree of chemical weathering of black shales precisely, and a - cn - k diagram can not reflect chemical weathering processes of black shales completely
（ 2 ） cia值並不能靈敏地反映黑色頁巖的化學風化程度， a - cn - k三角圖解並不能完整地反映黑色頁巖化學風化的整個過程。 -
The results demonstrate that the pingba red residua is a typical in situ chemical weathering crust, and the material sources of the profile are derived from underlying triassic dolomites, the chemical weathering of dolomite can be divided into two stages : " leaching - accumulating trend " and weathering trend ", the stable teconic and whole weathering of dolomite should be the main reason for the development of thick and consecutive red weathering crust overlying dolomite rock in central guizhou
結果顯示該剖面是下伏基巖白雲巖風化成土並累積的結果，無其他外來物源，是原位風化殼；成土過程具有兩階段模式特徵，即白雲石、方解石的溶蝕酸不溶物累積和酸不溶物進一步風化兩個階段；長時期的構造穩定和白雲巖整體溶蝕作用是黔中地區白雲巖風化殼土層厚度大、分佈連續的主要制約因素。 -
The effects of cenozoic tectonic uplift on earth surface chemical weathering and global climate change
新生代構造抬升對地表化學風化和全球氣候變化的影響 -
Chemical weathering of carbonate cement in sandstone and the related cultural relic diseases in yungang grottoes
雲岡石窟砂巖中碳酸鹽膠結物化學風化及相關文物病害研究 -
The results show no obvious difference in the contents of major components in the different xiashu loess profiles, but some difference in the contents of readily leaching elements of loess and the chemical weathering intensity of loess among the different xiashu loess profiles
結果表明不同下蜀土剖面在主要組分含量上差異不明顯，但在易淋溶元素含量和經歷的化學風化程度方面存在一定差異。
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