【文章內(nèi)容簡(jiǎn)介】 度、降水和鹽度等自然梯度的湖泊33個(gè)，開展湖泊表層沉積物粘土礦物與氣候環(huán)境要素的相關(guān)性研究，通過(guò)對(duì)湖泊表層沉積物粘土礦物組成、含量、微形態(tài)及粘土礦物中元素含量和硼同位素的分析和測(cè)試，確定湖泊粘土礦物與湖泊周邊表土粘土礦物的相關(guān)性；研究在天然湖泊這一復(fù)雜的自然系統(tǒng)中，湖泊粘土礦物是否受湖水水化學(xué)條件等其它要素的影響；建立湖泊表層沉積物中粘土礦物與湖區(qū)周邊氣候要素（溫度、降水、相對(duì)濕度）的相關(guān)性，并探討因海拔高度和緯度效應(yīng)引起的溫度、降水及相對(duì)濕度變化與湖泊粘土礦物的關(guān)系，評(píng)估它們?cè)诠艢夂蛑亟ㄖ械目煽啃院瓦m用性。該項(xiàng)目的實(shí)施和完成，能夠?yàn)槔梦覈?guó)干旱半干旱地區(qū)湖泊粘土礦物代用指標(biāo)進(jìn)行地質(zhì)歷史時(shí)期氣候環(huán)境變化的重建提供重要的科學(xué)依據(jù)。參考文獻(xiàn)：, A., The paleoclimatic interpretation of clay minerals in soils and weathering , C., Clay , Berlin: , , Paleoclimatic events indicated by mineralogical changes in deepsea of Sedimentary Research, (4): , A., The paleoclimatic interpretation of clay minerals in sediments — a Reviews, (4): , Z., , , et al., Clay mineral assemblages in the northern South China Sea: implications for East Asian monsoon evolution over the past 2 million Geology, (1): , , Global distribution of claysize 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