CAJ | 학술논문

应用因子分析方法对藏南3条剖面硅质岩的常量、微量元素进行了分析,提取第一、第二、第三主因子,不同程度地反映了陆源组分、自生组分和热水来源组分的特征.结果显示,自彭错林、夏鲁到宗卓组剖面,陆源因子和自生因子所占方差贡献率逐渐升高,热水源因子的方差贡献率大幅下降,指示彭错林硅质岩以热水沉积为主,夏鲁硅质岩属正常沉积叠加热水沉积,宗卓组硅质岩为正常沉积.
응용인자분석방법대장남3조부면규질암적상량、미량원소진행료분석,제취제일、제이、제삼주인자,불동정도지반영료륙원조분、자생조분화열수래원조분적특정.결과현시,자팽착림、하로도종탁조부면,륙원인자화자생인자소점방차공헌솔축점승고,열수원인자적방차공헌솔대폭하강,지시팽착림규질암이열수침적위주,하로규질암속정상침적첩가열수침적,종탁조규질암위정상침적.
In this paper,the characteristics of major and trace element of chert from southem Tibet are studied by the way of factor analysis,and the first,second and third factors are concluded form the results. It is showed that from Pengcuolin,Xialu to Zongzhuo chert profile,the variance ratios of continental and authigenetic factors b ecome higher, while hydrothermal factor rapidly decrease, which indicate that Pengcuolin chert is ofiginated from hydrothermal deposit, while Zongzhou chert is derived from normal sedimentation and the genesis of Xialu chert is caused by integrated action of the hydrothermal deposit and normal deposit.