月球线性构造分类体系研究

发布时间：2018-06-07 05:53

本文选题：月球 + 线性构造　；参考：《岩石学报》2017年10期

【摘要】：月球线性构造是月球科学研究中的重要组成部分,建立月球线性构造分类体系是月球地质图编研的关键。前人对月球线性构造的分类研究主要基于月表的形貌特征,划分的线性构造类型参差不齐,尚未形成一个公认的、规范的、具有普适性的线性构造分类体系,以至于分类结果的可对比性差、参考性和易操作性较低,不利于月球线性构造纲要图的编制。并且月球线性构造的概念混乱、术语不统一,存在"同物异名、同词异义、异词同义、涵义不明"的现象,不利于全球性的统一制图和成果的展示及使用。鉴于此,本文采用多指标组合的分类方法,以成因机制和形貌特征作为主要指标,兼顾物质组成,再结合线性构造形成的动力学机制,建立了符合月球动力学演化背景的、统一规范的线性构造类型划分的新方案,避免了单以形貌特征为依据来分类出现的混乱状态,具有较好的科学性和可操作性。将月球的线性构造类型划分为:内动力地质作用形成的线性构造,包括皱脊、月溪、地堑、断裂;外动力地质作用形成的线性构造,包括坑缘断裂和坑底断裂,以及多成因机制、多动力来源作用形成的特殊类型如坑链等。在此基础上,并利用多源遥感数据建立了易于判别且具有代表性的线性构造识别标志,可为全月球线性构造的统一制图提供识别依据。
[Abstract]:The linear structure of the moon is an important part in the research of lunar science, and the establishment of the classification system of the linear structure of the moon is the key to the compilation and research of the lunar geological map. Previous researches on the classification of lunar linear structures are mainly based on the morphological features of the lunar table. The types of linear structures are not uniform and have not yet formed a generally accepted, normative and universal classification system of linear structures. As a result, the classification results are poor in comparison, low in reference and easy to operate, and are not conducive to the compilation of the lunar linear tectonic outline map. Moreover, the concept of lunar linear structure is confused, the terminology is not unified, and there exists the phenomenon of "synonym, meaning of different words", which is not conducive to the global unified cartography and the display and use of achievements. In view of this, this paper adopts the classification method of multi-index combination, taking the genetic mechanism and morphological characteristics as the main indexes, taking into account the material composition, and combining with the dynamic mechanism formed by the linear structure, establishes a dynamic evolution background that accords with the lunar dynamic evolution. The new scheme of uniform and standard linear construction type classification avoids the chaotic state based on the morphological features and is scientific and operable. The linear tectonic types of the moon are divided into: linear structures formed by internal dynamic geological processes, including crease ridges, lunar streams, graben and faults; linear structures formed by external dynamic geological processes, including crater margin faults and pit bottom faults, As well as the formation of multi-genetic mechanism, multi-dynamic sources of special types such as pit chain. On the basis of this, and using multi-source remote sensing data, a representative linear structure identification mark is established, which can provide the identification basis for the unified mapping of the linear structure of the whole moon.
【作者单位】：中国科学院地球化学研究所月球与行星科学研究中心;中国科学院大学;
【基金】：国家自然科学基金重大项目(41490634、41490635、41490633) 面上项目(41373068、41773065) 国家科技基础性工作专项(2015FY210500)联合资助
【分类号】：P184

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