The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明:粘粒粉沙比值能很好地指示粉塵堆積物的次生粘
化作用;磁
化率和全鐵很好地指示生物風
化成壤作用; sr和rb sr比值能很好的指示生物風
化成壤作用和淋溶作用;總有機碳( toc )含量的高低,在一定程度上反應了土壤發育過程中氣候和植被狀況的變
化,指示著成壤過程中腐殖質
化的程度; caco3含量的變
化,可以反映了黃土古土壤形成時的風
化成壤作用的強弱程度,指示成壤過程中的淋溶作用和次生碳酸
鹽化作用;並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異,即渭河流域土壤的生物風
化成壤作用、次生粘
化作用和淋溶作用均表現出南部強于北部。
The gangue minerals are mostly carbonating minerals, fluorite, barite, celestite and so on ; the rock alteration is slightly silicified, carbonated, baritizated, celestited, which is low - temperature alteration. because of continual downgoing extrusion from india plate to euro - asian plate, there are some thrusting nappe structures in lanping basin related to the orogens on the two sides
礦床中礦石礦物發育典型的中低溫熱液成因的礦物組合,如黝銅礦系列、方鉛礦、黃銅礦等,脈石礦物主要為碳酸
鹽類礦物、螢石、重晶石、天青石等;圍巖蝕變主要發育弱硅
化、碳酸
鹽化、重晶石
化、天青石
化等低溫蝕變組合。
There is an annual movement of salt with water in coastal solonchak in liaoning as follows : the thawing - evapo - salinization period in spring, irrigation - leaching - desalting period in rice growing season from may to september, evapo - salinization period again in late fall and relatively stable period in winter
遼寧沿海
鹽土中
鹽分每年隨水移動如下:春季為凍融-蒸發-
鹽化期, 5 ~ 9月為灌溉-淋洗-脫
鹽水稻種植期,晚秋為蒸發-
鹽化期,冬季為相對穩定期。
Thirty - one crystals of polyoxometalates ( 1d, 2d, 3d ) were prepared by means of middle hydrothermal technique, molecular design and self - assembly, and characterized structurally by single crystal x - ray diffraction. the thermal stability, activity of catalysis and magnetism of some compounds were systematically studied. the continuous appearance of p - v - o, p - mo - o, v - mo - o, v - o system with novel structure enrich polyoxometalate chemistry, the reaction characterization and the synthesis law of molybdates, tungstates and vanadates under hydrothermal conditions were explored
由於p - v - o 、 p - mo - o 、 v - mo - o 、 v - o體系新結構不斷出現,豐富了多金屬氧酸
鹽化學,探討水熱條件下釩、鉬、鎢物種的反應特性和生成規律,研究原料的選擇、配比、加料順序、濃度、酸度、反應溫度、反應時間等因素對產物的生成及結構的影響,為新的催
化劑、導電材料、磁性材料的研製與開發積累經驗。
Tanzanite is a blue variety of the gemstone zoisite. it consists of calcium aluminium silicate and is not particularly hard, having a value of 6. 5 to 7 on the mohs scale
其實坦桑石則是寶石級藍色的黝簾石,是一種含鈣鋁的硅酸
鹽,
化學式為
The formation of salt - alkaline soil included salinization and alkalinization. the increase of salinity was the character of salinization, and the increase of ph was the character of alkalinization
土壤的
鹽堿
化即包括土壤的
鹽化又包括土壤的堿
化,
鹽化以上壤
鹽度升高為特徵,堿
化以土壤ph升高為特徵。
The hydrothermal activities which were complicated and acted a positive effect in the formation of the zhulazaga gold deposit resulted in hydrothermal alterations of multiepisode, including pyroxeneization, actinolitization, epidotization, ice - feldsparization, silicification, chloritization and carbonatization etc. the research on inclusions in quartz of the ore indicates that the hydrothermal fluid varying greatly in temperature with an average of 286 shows characteristics of high temperature
3 、朱拉扎嘎金礦的形成中熱液活動起到了積極的作用,熱液活動不僅復雜而且具多期性,有透輝石
化、陽起石
化、綠簾石
化、綠泥石
化、硅
化、冰長石
化、碳酸
鹽化等。礦石中石英包裹體的研究表明,含礦熱液的溫度變
化范圍較寬廣,平均在286 ,顯示中偏高溫特徵。
Uses ; used in producing cobalt oxide, cobaltiferous salt, chemical agent, also used as pigments in glass and ceramic etc
用途;用於制取鈷氧
化物、鈷
鹽、
化學試劑,亦用作玻璃、陶瓷等的著色顏料。
If the investment on the salt chemistry is above 0. 1billion yuan in the park, we can supply land gratuitously
對在園區內投資過億元的
鹽化工項目,無償提供項目用地。
With the exception of a reduced number of low concentration hits for phthalate compounds and, in one case, a trihalomethane compound, only halocarbons were reported in 1997
根據1997年的采樣數據,在各個采樣中,只檢測到濃度較低的酞酸
鹽化合物、三鹵代甲烷
化合物(只有一例)和鹵烴。
New observations on phosphatized spheroidal fossils in sinian doushantuoan phosphorites in weng an, guizhou province
貴州甕安震旦紀陡山沱期磷酸
鹽化球狀
化石的新觀察
The root of mangrove can prevent coast from erosion. the abundant ground water layer also can prevent seawater from incursion and salty
紅樹林的根有防止海岸侵蝕及流失的功能,其豐富的地下含水層還可避免海水入侵,防止地下水
鹽化。
Ocean science and engineering research institute will this be the work of target, has already rather had own special features at the development of the realm, for example making salt, salt chemical engineering, ocean chemical engineering and make the salt machine etc., already had accumulated a lot of research experience at the academic realm, such as seawater kinematics, oceanic chemistry and developments and using of its resources, hydrology geology of the coast, salt pan biology, water - salt system phase diagram, inorganic separation, crystallography and so on, and is utmost developing oceanic resources attains, at the same time, doing the resources circulation & reusing and reducing the environment pollution
海洋科學與工程研究所將此作為工作的目標,在制
鹽、
鹽化工、海洋
化工、制
鹽機械等領域的開發已經頗具有自己的特色,在海水運動、海洋
化學及資源開發利用、海岸帶水文地質、
鹽田生物、水
鹽體系相圖、無機分離、結晶等學術領域已積淀了豐厚的科研經驗,最大限度的開發海洋資源的同時做到資源循環再利用、減少環境的污染。
Some soils are affected by salinity - alkalinity : about 15 % of irrigated area suffer from varying degrees of salinity and sodicity and about 10 % from water logging
一些土壤受鹽堿影響:約15 %的灌溉面積有不同程度的鹽化和蘇打堿化,約10 %的土壤受淹水之苦。