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| 西太平洋海域海山地形分形特征研究 | |
| 引用本文： | 章伟艳,张富元,朱克超,杨克红,胡光道,程永寿,李守军,赵宏樵.西太平洋海域海山地形分形特征研究[J].现代地质,2009,23(6). |
| 作者姓名： | 章伟艳 张富元 朱克超 杨克红 胡光道 程永寿 李守军 赵宏樵 |
| 作者单位： | 1. 国家海洋局,第二海洋研究所,国家海洋局海底科学重点实验室,浙江,杭州,310012 2. 国土资源部,广州海洋地质调查局,广东,广州,510760 3. 中国地质大学,数学地质遥感地质研究所,湖北,武汉,430074 4. 国家海洋信息中心,天津,300171 |
| 基金项目： | 中国大洋协会"十一五"资助项目，科学技术部资助项目，国家海洋局第二海洋研究所基本科研业务费专项资金项目，浙江省自然科学基金项目 |
| 摘 要： | 对太平洋麦哲伦海山区、威克—马尔库斯海山区、马绍尔群岛、中太平洋海山区及莱恩群岛5个海山区的平顶海山与尖顶海山地形进行分形研究,结果表明两种类型海山地形具有不同的分形特征。海山形态投影覆盖法揭示平顶海山具有单分形的大尺度构造分形,尖顶海山具有大尺度构造分形和小尺度结构分形的双分形结构。海山等高线尺度法分形结果显示,同一海山区平顶海山分维值小于尖顶海山的;同一海山不同高程段等高线分维值基本保持稳定,垂向上具有明显的分段性,可以参考并使用它进行地貌垂向分带。 |
| 关 键 词： | 太平洋 海山地形 钴结壳 分形 |
Fractal Research on Seamount Topography in the West Pacific Ocean |
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| ZHANG Wei-yan,ZHANG Fu-yuan,ZHU Ke-chao,YANG Ke-hong,HU Guang-dao,CHENG Yong-shou,LI Shou-jun,ZHAO Hong-qiao.Fractal Research on Seamount Topography in the West Pacific Ocean[J].Geoscience——Journal of Graduate School,China University of Geosciences,2009,23(6). | |
| Authors: | ZHANG Wei-yan ZHANG Fu-yuan ZHU Ke-chao YANG Ke-hong HU Guang-dao CHENG Yong-shou LI Shou-jun ZHAO Hong-qiao |
| Abstract: | On the basis of fractal research on the pointy seamount and guyot topography of Magellan seamounts, Wake-Marcus seamounts, Marshall Islands, Mid-Pacific Mountains and Lines Islands in the west Pacific Ocean, it is indicated that the different terrains of volcano shape type should display the different fractal characteristics. The fractal research on terrain shape shows that the guyot has the single fractal structure and the seamount has the multifractal structure. The multifractal of the seamount mainly shows the great tectonic fractal and the small texture fractal,and the application of fractal dimension is demonstrated for quantitative characterization of the Pacific seamount topography roughness. The contour fractal shows that there are obvious several subsections of contour fractal which basically retains stable, possibly because the different geological processes on the different depths of the seamount have developed. It is possibly used to carry on vertical zoning of the geomorphic process. The fractal dimension of guyot is smaller than that of pointy seamount in the same seamounts. |
| Keywords: | Pacific seamount topography cobalt crust fractal |
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