| 吉林大椅子山火山年代学、地球化学特征及其排气量的估算 |
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| 关键词:Dayizishan volcano late Pleistocene geochemistry U-series component method degassing budget evaluation |
| 基金项目:中国科学院重要发展方向性项目“先进核分析技术在环境科学中的应用”(编号:KJCXN01) |
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| Chronological and Geochemical Features and Degassing Evaluation of the Dayizishan Volcano, Jilin Province |
| According to the analysis by U-series component method,Dayizishan volcano erupted at 71±9 ka B P in late Pleistocene. Petrochemical and geochemical features of the eruption products of all phases imply that they came from the same magma resource. Based on petrological methods and the degassing model devised by Thordarson in 1996,It is estimated from the measured chlorine and fluorine concentrations in the samples that the atmospheric loading of hydrochloric acid and that of hydrofluoric acid were 7.36 Mt and 5.21 Mt,respectively. |
| YU Fu-sheng,YUAN Wan-ming,HAN Song,MA Zhi-bang,JIN Ke.2004.Chronological and Geochemical Features and Degassing Evaluation of the Dayizishan Volcano, Jilin Province[J].Acta Geoscientica Sinica,25(2):219-223. |
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