| 在大数据背景下看TAS分类的不足及可能的解决方案 |
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| 引用本文： | 张旗,葛粲,焦守涛,袁峰,张明明,刘惠云.在大数据背景下看TAS分类的不足及可能的解决方案[J].地质通报,2019,38(12):1943-1954. |
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| 作者姓名： | 张旗 葛粲 焦守涛 袁峰 张明明 刘惠云 |
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| 作者单位： | 中国科学院地质与地球物理研究所, 北京 100029;中国科学院地质与地球物理研究所岩石圈演化国家重点实验室, 北京 100029,合肥工业大学资源与环境工程学院, 安徽 合肥 230009;合肥工业大学矿集区立体探测实验室, 安徽 合肥 230009;合肥工业大学安徽省矿产资源与矿山环境工程技术研究中心, 安徽 合肥 230009,中国地质调查局发展研究中心, 北京 100037,合肥工业大学资源与环境工程学院, 安徽 合肥 230009;合肥工业大学矿集区立体探测实验室, 安徽 合肥 230009;合肥工业大学安徽省矿产资源与矿山环境工程技术研究中心, 安徽 合肥 230009,合肥工业大学资源与环境工程学院, 安徽 合肥 230009;合肥工业大学矿集区立体探测实验室, 安徽 合肥 230009;合肥工业大学安徽省矿产资源与矿山环境工程技术研究中心, 安徽 合肥 230009,中国科学院地质与地球物理研究所, 北京 100029;中国科学院地质与地球物理研究所岩石圈演化国家重点实验室, 北京 100029 |
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| 基金项目： | 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室项目《镁铁-超镁铁岩大数据研究》（编号：81300001）、国家青年科学基金项目《地震和重力数据联合约束下的苏鲁皖地区壳幔结构反演研究》（批准号：41504042）、国家重点研发计划项目《基于“地质云”平台的深部找矿知识挖掘》（编号：2016YFC0600510）和《基于地质云的地质灾害基础信息提取与大数据分析挖掘》（编号：2018YFC1505501） |
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| 摘 要： | 火山岩TAS分类是国际地质科学联合会在1989年第28届国际地质大会上通过的,迄今已经40年了。该分类对推进岩石学和地球化学的研究起了积极的作用,规范了岩石(尤其火山岩)的命名,方便了学术界的交流。但是,不能不承认,早先的研究,由于分析方法、分析技术以及数据量的限制,是存在某些局限性的。现在,全球已积累了海量的数据,应当有条件对火山岩的分类做一个新的探讨了。文中讨论了TAS分类的初衷、分类的原则及存在的问题,推出了新的TAS分类方案。早先的分类一共划分了15个岩区,新的方案压缩为10个,其中9个保留了早先的命名,新增一个碱流岩区。新的TAS图最大的变化在碱性岩系列,在新的TAS图中,碱性岩系列呈"人"字形分布,把粗玄岩系列封闭起来,弥补了早先的TAS分类在酸性岩部分的不足,还发现TAS图理论上可能存在的一些问题。本文的探讨是初步的,只是抛砖引玉,希望能够引起学术界的关注,开启利用大数据方法对TAS分类的新的研究。
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| 关 键 词： | TAS图 火山岩 分类 岩石自然组合 自然分布 大数据 全体数据 |
| 收稿时间： | 2019/4/23 0:00:00 |
| 修稿时间： | 2019/7/16 0:00:00 |
The deficiencies and possible solutions of TAS classification in the context of big data |
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| ZHANG Qi,GE Can,JIAO Shoutao,YUAN Feng,ZHANG Mingming and LIU Huiyun.The deficiencies and possible solutions of TAS classification in the context of big data[J].Geologcal Bulletin OF China,2019,38(12):1943-1954. |
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| Authors: | ZHANG Qi GE Can JIAO Shoutao YUAN Feng ZHANG Mingming and LIU Huiyun |
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| Institution: | Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China,School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, Anhui, China;Laboratory of Three-Dimensional Exploration for Mineral District, Hefei University of Technology, Hefei 230009, Anhui, China;Anhui Provincial Engineering Research Center for Mineral Resources and Mine Environments, Hefei University of Technology, Hefei 230009, Anhui, China,Development Research Center, China Geological Survey, Beijing 100037, China,School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, Anhui, China;Laboratory of Three-Dimensional Exploration for Mineral District, Hefei University of Technology, Hefei 230009, Anhui, China;Anhui Provincial Engineering Research Center for Mineral Resources and Mine Environments, Hefei University of Technology, Hefei 230009, Anhui, China,School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, Anhui, China;Laboratory of Three-Dimensional Exploration for Mineral District, Hefei University of Technology, Hefei 230009, Anhui, China;Anhui Provincial Engineering Research Center for Mineral Resources and Mine Environments, Hefei University of Technology, Hefei 230009, Anhui, China and Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | The TAS diagram, which is widely used in academia, is a classification scheme for volcanic rocks approved by IUGS in 1989. This classification has been active in advancing the research on petrology and geochemistry, regulating the naming of rocks (especially volcanic rocks) and facilitating the exchange of academia. However, it cannot be denied that earlier studies had some limitations due to analytical methods, analytical techniques and data volume limitations. Now that the world has accumulated a huge amount of data, researchers should have the conditions for making new discussion on the classification of volcanic rocks. In this study, the authors have developed a new TAS classification scheme for volcanic rocks using a probability density function. The original TAS diagram defines 15 root names, among which 9 are preserved in this paper. With the addition of one new root name, the authors define a total of 10 root names. The biggest change in the new TAS diagram is in the alkaline rock series. In the new TAS diagram, the trachybasalt series is closed up, thus making up for the earlier TAS classification in the acidic rock part of the deficiency. The authors have also found that the TAS diagram may have some problems. The classification scheme presented in this study is subject to further discussions and tests. |
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| Keywords: | TAS diagram volcanic rocks classification rock natural compositions rock natural distributions big data all data |
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