Research and implementation on vesicle volume calculation of lava flows using three-dimensional computerized tomography (CT) scanning technology
文献类型：期刊论文
| 作者 | Zhang MaoLiang1; Liu Zhen2; Chen DeFeng3; Guo ZhengFu1; Guo WenFeng1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 30期号:12页码:3709-3716 |
| 关键词 | Vesicular basalts Computerized tomography Traversal-points algorithm Threshold algorithm Paleoelevation |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Vesicle volume calculation and its computer implementation is one of the difficulties in application of vesicular basalt paleoaltimeter, which directly constrains the accuracy of resultant paleoelevation. In this study, we present a new statistical method of vesicle size distributions in lava flows based on three-dimensional computerized tomography (CT) scanning technology. First, three-dimensional data of vesicular basalt samples are reconstructed using cone beam CT experimental equipment Second, based on variable mass-X-ray absorption attenuation coefficients, different parts for rock, vesicles and invalid background are established to identify connected skeletons and interfaces among vesicles. Finally, vesicle population and volume are calculated by new methods proposed in this study. Given that vesicles in basaltic lava flows are characterized by irregular profiles, we use traversal-points algorithm to effectively calculate areas of vesicle cross sections, eliminating influences from irregular profiles of connected vesicles. New threshold algorithm based on field separation is proposed for calculating vesicle population and volume, resolving problems of excessive separation on small vesicles when using traditional single threshold method. Thus, we design a new statistical procedure to calculate vesicle population and volume, and preliminary results of the algorithm confirmed its effectiveness and feasibility. Our statistical method is expected to improve the calculation accuracy of vesicle population and size distribution in basaltic lava flows and be one of the effective proxies for reconstructing uplift history of continental plateau such as Tibetan Plateau. |
| WOS关键词 | VESICULAR BASALTS ; PALAEOELEVATION ; ALGORITHM ; CHINA |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000347270400020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84960]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang MaoLiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 2.Renmin Univ China, Informat Sch, Beijing 100872, Peoples R China 3.Capital Normal Univ, Computerized Tomog Lab, Beijing 100048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang MaoLiang,Liu Zhen,Chen DeFeng,et al. Research and implementation on vesicle volume calculation of lava flows using three-dimensional computerized tomography (CT) scanning technology[J]. ACTA PETROLOGICA SINICA,2014,30(12):3709-3716. |
| APA | Zhang MaoLiang,Liu Zhen,Chen DeFeng,Guo ZhengFu,&Guo WenFeng.(2014).Research and implementation on vesicle volume calculation of lava flows using three-dimensional computerized tomography (CT) scanning technology.ACTA PETROLOGICA SINICA,30(12),3709-3716. |
| MLA | Zhang MaoLiang,et al."Research and implementation on vesicle volume calculation of lava flows using three-dimensional computerized tomography (CT) scanning technology".ACTA PETROLOGICA SINICA 30.12(2014):3709-3716. |
入库方式： OAI收割
来源：地质与地球物理研究所
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