王涛, 童英, 郭磊, 张建军, 苏尚国, 焦建刚, 王连训. 侵入岩填图方法体系及专题研究[J]. 地质通报, 2017, 36(11): 1953-1962.
    引用本文: 王涛, 童英, 郭磊, 张建军, 苏尚国, 焦建刚, 王连训. 侵入岩填图方法体系及专题研究[J]. 地质通报, 2017, 36(11): 1953-1962.
    WANG Tao, TONG Ying, GUO Lei, ZHANG Jianjun, SU Shangguo, JIAO Jiangang, WANG Lianxun. Methodology and thematic studies of geological mapping of intrusions[J]. Geological Bulletin of China, 2017, 36(11): 1953-1962.
    Citation: WANG Tao, TONG Ying, GUO Lei, ZHANG Jianjun, SU Shangguo, JIAO Jiangang, WANG Lianxun. Methodology and thematic studies of geological mapping of intrusions[J]. Geological Bulletin of China, 2017, 36(11): 1953-1962.

    侵入岩填图方法体系及专题研究

    Methodology and thematic studies of geological mapping of intrusions

    • 摘要: 中国侵入岩填图经历了不同发展阶段。目前,需要探索中大比例尺(1:5万~1:2.5万)填图方法。依据以往的填图实践经验,特别是同源花岗岩、异源花岗岩、中基性岩、超基性岩试点填图,提出侵入岩填图方法体系。无论何种成因,侵入岩填图应该建立不同级别的等级体制填图单位,即侵入体-单元-序列(或岩套)-超序列(或超岩套)-超序列组合(或超岩套组合),分别对应岩体-岩基-岩带-巨型岩带。同源花岗岩岩浆,可以按照以往的谱系单位填图,其侵入体-单元-序列-超序列应该是同一个岩浆旋回演化的产物。岩浆混合花岗岩,可以按照混合程度划分单元,归并序列。中基性-超基性侵入岩,也可以参考上述谱系单位和混合单位填图。侵入岩不同级别等级体制单位的建立有利于深入认识岩浆系统及其制约因素。此外,花岗岩等侵入岩蕴含了丰富的地球动力学信息,有必要开展深入的专题研究。

       

      Abstract: Geological mapping of intrusions in China has experienced different stages. Now, researchers should explore methods for medium-large scale mapping (1:50000~1:25000). Based on previous mapping experience, especially that obtained from the pilot mapping of cogenetic granitoids, magmatic mixing granitoid, and intermediate-mafic and ultramafic intrusions, this paper presents mapping methodology of intrusive rocks. No matter what kinds of petrogenesis they are, mapping of intrusions should establish different grades of mapping units, such as intrusive body-unit-suite-supersuite-supersuite association, probably responding to plutonbatholith-magmatic belt-huge magmatic belt respectively. Previously, pedigree unit mapping method was widely applied in congenetic granites. These intrusive body-unit-suite-supersuite result from evolution of one magmatic cycle. Mixing or mingling granitoid pluton can be divided into units by different mixing degrees and merging suites. Mapping of intermediate mafic-ultramafic rocks can also refer to the methods introduced above. The establishment of mapping units according to different grades of intrusive rocks are helpful to understanding the magma system and its constraints. Furthermore, intrusive rocks such as granitoids contain abundant geodynamic information, and hence it is necessary to launch thematic mapping and research.

       

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