| 苏鲁高压-超高压带的结构、变形特征及形成背景探讨 |
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| 引用本文：张忠义,吴淦国,宋明春,张达.2004.苏鲁高压-超高压带的结构、变形特征及形成背景探讨[J].地球学报,25(6):607-614. |
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| 基金项目:国土资源部科技项目(编号:2003401) |
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| 中文摘要:苏鲁高压-超高压变质带由不同层次、不同级别、不同变质岩石组合的构造岩片堆叠而成，自北向南可分别为9个构造岩片。这种复杂的结构的形成和发展主要受早期的变质变形作用控制，并被晚期构造作用改造。本文重点对高压-超高压变质带的构造变形进行了分析，自元古宙—中生代韧性改造事件可分为4期。最后在以上工作的基础上对其形成的地质背景进行了探讨，指出了两次高压-超高压变质事件存在的可能，而且其新元古代的构造事件可与全球Rodinian超大陆的形成与裂解相对比。 |
| 中文关键词:高压超高压变质带 结构 变形作用 Rodinia |
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| Texture, Deformation and Formation Background of the Sulu High-Ultrahigh Pressure Metamorphic Belt |
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| Abstract:The Su-Lu high-ultrahigh pressure metamorphic belt results from the superimposition of tectonic slices of various grades. It can be divided into nine tectonic slices in southward direction, namely Weihai-Yangkou, Muping-Rushan, Taolin-Shangzhuang,Wulian-Jiaonan, Banquan-Rizhao, Linshu-Haitou, Donghai-Tushan, Lianyungang-Punan and Guanyun-Yangji. The formation and evolution of the complex structure were controlled mainly by early deformation and metamorphism. A study of the deformation indicates that from Proterozonic to Mesozonic the high-ultrahigh pressure metamorphic belt experienced four shear deformation stages. The investigation into the geological setting for the evolution of the high-ultrahigh pressure metamorphic belt reveals that there might have existed two high-ultrahigh metamorphic events in the evolution of the orogenic belt. The tectonic event during Neoproterozonic must have had a close relationship with global Rodinia supercontinent aggregation and cracking-disintegration. |
| keywords:high-ultrahigh pressure metamorphic belt structure deformation Rodinia |
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