發(fā)布時間：2018-06-27 18:05

  本文選題：電導率 + 高溫高壓實驗�。� 參考：《中國科學:地球科學》2016年03期

【摘要】：含水礦物是地殼、地幔,尤其是俯沖帶內(nèi)的重要礦物.高溫高壓下殼幔含水礦物電導率實驗研究是一個相對較新的研究方向.隨著實驗技術的不斷進步,很多高壓相含水硅酸巖礦物的電導率測定工作得以開展,在有效控制溫度、壓強和氧逸度等條件下,含水礦物的電導率實驗數(shù)據(jù)可以對地球內(nèi)部水的分布提供制約.本文介紹了已有的蛇紋石、滑石、水鎂石、phase A、super hydrous phase B、phase D含水礦物在高溫高壓下的電導率實驗研究,對各含水礦物電導率數(shù)據(jù)的有效性進行了分析,并重點介紹了電導率測試含水礦物脫水對全巖電導率的影響以及壓強對含水礦物電導率的影響.在已有數(shù)據(jù)的基礎上,對含水礦物的導電機制以及俯沖帶的電結構進行了探討.最后對今后的研究前景及潛在的研究領域進行了展望.
[Abstract]:Water-bearing minerals are important minerals in the crust and mantle, especially in subduction zones. Experimental study on conductivity of water-bearing minerals in crust and mantle under high temperature and pressure is a relatively new research direction. With the development of experimental technology, the determination of electrical conductivity of many high-pressure water-bearing silicate minerals has been carried out. Under the conditions of effectively controlling temperature, pressure and oxygen fugacity, The experimental data of conductivity of water-bearing minerals can restrict the distribution of water in the earth's interior. In this paper, the electrical conductivity of phase A super hydrous phase Bu phase D minerals of serpentine, talc and brucite at high temperature and high pressure are studied. The validity of conductivity data of these minerals is analyzed. The effect of dehydration of water-bearing minerals on the conductivity of the whole rock and the effect of pressure on the conductivity of water-bearing minerals are introduced emphatically. Based on the available data, the electrical conduction mechanism of water-bearing minerals and the electrical structure of subduction zones are discussed. Finally, the future research prospect and potential research field are prospected.
【作者單位】： 中國地質(zhì)大學地質(zhì)過程與礦產(chǎn)資源國家重點實驗室;
【基金】：國家自然科學基金項目(批準號:41590623,41472040) 中央高�；究蒲袠I(yè)務費專項項目(編號:CUGL150801) 地質(zhì)過程與礦產(chǎn)資源國家重點實驗室自主研究課題(編號:MSFGPMR201408)資助
【分類號】：P542.5

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