| 武当地块基性岩墙群的Sm-Nd定年及其相关问题讨论 |
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| 关键词:South Qinling Wudang block basic dyke swarm Sm-Nd dating |
| 基金项目:国家自然科学基金 |
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| Sm-Nd Dating of Basic Dykes from Wudang Block and a Discussion of Related-Questons |
| The Wudang Block is a Presinian basement block involved in the South Qinling belt,in which a large number of deformed and metamorphosed basic dykes are widely developed.We have determined isochron dating of Sm Nd whole rock: t =782±164(2σ)Ma, I Nd =0.51171±164(2σ),ΣNd( t )=+1.5±1.0.Besed on the result,the questions related to basement signature of South Qinling and rifting of ancient continental block in Neoproterozic,character are also discussed with original geology. |
| ZHOU Ding-wu,ZHANG Cheng-li,LIU Liang,WANG Ju-li,LIU Ying-yu,ZHANG Zong-qing.1998.Sm-Nd Dating of Basic Dykes from Wudang Block and a Discussion of Related-Questons[J].Acta Geoscientica Sinica,19(1):25-30. |
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