地質(zhì)專業(yè)外文翻譯--風(fēng)化礦床(存儲(chǔ)版)
【正文】 mainly limestone weathering products, known as terra rossa type bauxite, are formed after LvShi limestone weathering iron oxide and clay, measures were taken to karst depressions with a bauxite。 Deposit。鈾是變價(jià)元素，當(dāng)含鈾礦物中 4 價(jià)鈾氧化成為 6 價(jià)鈾 ,就易于淋濾帶去 ,在運(yùn)移途中遇到鈾的沉淀劑，它就轉(zhuǎn)入沉積物中富集起來。酸性巖漿巖中分散存在的稀土礦物當(dāng)巖石風(fēng)化時(shí)被釋放出來，以離子狀態(tài)被粘土礦物吸附，而在風(fēng)化殼中富集成礦，也稱離子吸附型稀土元素礦床。 ④殘余粘土礦床。這種礦床多分布在地中海沿岸國家和印度、前蘇聯(lián)等地。 礦體 內(nèi)常有原巖中殘留的富含鉻、鈦、釩礦物或風(fēng)化后殘留的鈷、鎳、錳礦物，可以直接冶煉成優(yōu)質(zhì)合金鋼。按風(fēng)化剖面的分帶性及其形成機(jī)理可以分為風(fēng)化殼頂部的殘積砂礦床、潛水面上的殘余礦床及潛水面以下的淋積礦床。 ⑤地質(zhì)構(gòu)造。 ②氣候條件。風(fēng)化礦床規(guī)模以中小型為 主，個(gè)別大型或超大型礦床面積達(dá)數(shù)千平方公里，儲(chǔ)量幾億噸甚至超過 100 億噸。其中鎳礦床和鋁土礦床在世界鎳和鋁的生產(chǎn)中占有重要地位，其他礦種也對(duì)產(chǎn)地經(jīng)濟(jì)有重要影響。 ③地形因素。 2 ⑥時(shí)間因素。風(fēng)化殘余物質(zhì)都是在地表?xiàng)l件下穩(wěn)定的物質(zhì)，其中鐵和鋁是最穩(wěn)定的，風(fēng)化后成為鐵礦和鋁土礦而富集在風(fēng)化殼上部成礦。 ②紅土型鋁土礦礦床。又稱硅酸鹽鎳礦床，由超基性巖風(fēng)化而成。中國開采高嶺土礦床的歷史悠久，以在長江下游幾省為主，高嶺土礦是云母花崗巖和花崗偉晶巖的風(fēng)化產(chǎn)物。 4 淋積礦床 指原巖中活動(dòng)性較大的物質(zhì)，經(jīng)過風(fēng)化淋濾被地下水帶至鄰近的巖石中富集形成的礦床。 ②淋積銅礦。 Strongly flattened terrain, also go against weathering mineralization continuous。s yunnan and Taiwan also have this type of ore deposits. (4) Residual clay zhongfu aluminum silicate minerals in warm humid climate conditions of weathering, and form the accumulation of clay mi neral is given priority to, according to the original rock position and weathering degree and formation kaolin ore deposit or bentonite with montmorillonite as the main ingredient, it is in the process of acidic and alkaline silicate rock weathering, has yet to reach the free alumina phase, formed the silicate minerals, and medium acidic leaching the mining kaolin ore deposit has a long history, mainly in the Yangtze river downstream of a few provinces, kaolin ore is mica granite and granite pegmatite weathering is given priority to with montmorillonite, is formed by intermediateacid volcanic rock and cretaceous volcanic rocks in eastern China has a wide distribution of bentonite, part is formed by as jilin 9 bentonite deposits in the main output of calcium bentonite is weathering residual ore deposit, and the sodium bentonite is volcanic eruption intermittent period, deposited in the lake. (5) Residual rare earth elements magmatic rocks in the dispersion of rare earth minerals are released when the rock weathering, in ionic form by clay mineral adsorption, and the enrichment of mineralization in the weathering crust, also known as the ion adsorption type rare earths mineral nanling region have granite weathering residual heavy rare earth elements deposits (yttrium).East China39。s shanxi type iron ore, at least in part, is a product of iron carbonate rock weathering. (2) The red clay type bauxite in tropical and subtropical regions of alkaline rock and rock weathering by separate strong weathering of alkali and alkaline earth metal ions, make alkaline water, can dissolve and out of the silicon dioxide, and residual aluminum in
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