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月球線性構造分類體系研究

發(fā)布時間:2018-06-07 05:53

  本文選題:月球 + 線性構造; 參考:《巖石學報》2017年10期


【摘要】:月球線性構造是月球科學研究中的重要組成部分,建立月球線性構造分類體系是月球地質圖編研的關鍵。前人對月球線性構造的分類研究主要基于月表的形貌特征,劃分的線性構造類型參差不齊,尚未形成一個公認的、規(guī)范的、具有普適性的線性構造分類體系,以至于分類結果的可對比性差、參考性和易操作性較低,不利于月球線性構造綱要圖的編制。并且月球線性構造的概念混亂、術語不統(tǒng)一,存在"同物異名、同詞異義、異詞同義、涵義不明"的現(xiàn)象,不利于全球性的統(tǒng)一制圖和成果的展示及使用。鑒于此,本文采用多指標組合的分類方法,以成因機制和形貌特征作為主要指標,兼顧物質組成,再結合線性構造形成的動力學機制,建立了符合月球動力學演化背景的、統(tǒng)一規(guī)范的線性構造類型劃分的新方案,避免了單以形貌特征為依據來分類出現(xiàn)的混亂狀態(tài),具有較好的科學性和可操作性。將月球的線性構造類型劃分為:內動力地質作用形成的線性構造,包括皺脊、月溪、地塹、斷裂;外動力地質作用形成的線性構造,包括坑緣斷裂和坑底斷裂,以及多成因機制、多動力來源作用形成的特殊類型如坑鏈等。在此基礎上,并利用多源遙感數據建立了易于判別且具有代表性的線性構造識別標志,可為全月球線性構造的統(tǒng)一制圖提供識別依據。
[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.
【作者單位】: 中國科學院地球化學研究所 月球與行星科學研究中心;中國科學院大學;
【基金】:國家自然科學基金重大項目(41490634、41490635、41490633) 面上項目(41373068、41773065) 國家科技基礎性工作專項(2015FY210500)聯(lián)合資助
【分類號】:P184

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