高级检索
吴文慧, 任鑫, 陈媛, 帕丽古力·杰恩斯, 孙国洋. “嫦娥五号”采样点周缘穹窿形貌特征及成因研究[J]. 深空探测学报(中英文), 2022, 9(3): 321-328. DOI: 10.15982/j.issn.2096-9287.2022.20210068
引用本文: 吴文慧, 任鑫, 陈媛, 帕丽古力·杰恩斯, 孙国洋. “嫦娥五号”采样点周缘穹窿形貌特征及成因研究[J]. 深空探测学报(中英文), 2022, 9(3): 321-328. DOI: 10.15982/j.issn.2096-9287.2022.20210068
WU Wenhui, REN Xin, CHEN Yuan, Paliguli·JIEENSI, SUN Guoyang. Study on Morphological Characteristics and Genesis of Dome Around Chang’E-5 Sampling Point[J]. Journal of Deep Space Exploration, 2022, 9(3): 321-328. DOI: 10.15982/j.issn.2096-9287.2022.20210068
Citation: WU Wenhui, REN Xin, CHEN Yuan, Paliguli·JIEENSI, SUN Guoyang. Study on Morphological Characteristics and Genesis of Dome Around Chang’E-5 Sampling Point[J]. Journal of Deep Space Exploration, 2022, 9(3): 321-328. DOI: 10.15982/j.issn.2096-9287.2022.20210068

“嫦娥五号”采样点周缘穹窿形貌特征及成因研究

Study on Morphological Characteristics and Genesis of Dome Around Chang’E-5 Sampling Point

  • 摘要: “嫦娥五号”采样点周缘区域分布有吕姆克山(Mons Rümker)和梅朗(Mairan)火山穹窿构造。通过“嫦娥”影像和地形数据对两类穹窿的形貌特征和形成因素对比研究,讨论穹窿的划分标准。共计圈定了Mons Rümker 13个月海穹窿和Mairan所在的4个非月海穹窿,并计算了穹窿形成过程中的岩浆流变学参数。结果表明:Mons Rümker月海穹窿较为低缓,按照坡度和高度划分为Mons Rümker第一类月海穹窿(坡度均< 5°,高度200~400 m)和Mons Rümker第二类月海穹窿(坡度5°~7°,高度300~600 m),其中第二类较高陡的月海穹隆具有较高的黏度和更低的喷发速率。 Mairan非月海穹窿更为高陡,其岩浆喷发速率低于Mons Rümker月海穹窿,岩浆粘度较高,流动性较差,喷发周期较长;在空间上,Mairan所在的4个非月海穹窿呈线性展布,其物质成分和形成时间相近,表明彼此关联的可能性很大。

     

    Abstract: Mons Rümker and Mairan volcanic dome structure are distributed around Chang’E-5 sampling point. At present, there is a lack of comparative research on their morphological characteristics, genesis and classification standards. Therefore, this paper compared the morphological characteristics and formation factors of the two types of domes through Chang’E image and topographic data, and discussed the division criteria of domes. In this study, 13 lunar mare domes of Mons Rümker and 4 non-mare domes of Mairan were delineated, and the magma rheological parameters during the formation of the domes were calculated. The results show that the Rümker lunar mare domes are relatively low and flat. According to the slope and height, the domes are divided into Rümker type I lunar mare dome (slope < 5 °, height 200-400 m) and Rümker type II mare dome (slope 5 °-7 °, height 300-600 m). Among them, the second kind of higher and steeper lunar sea dome has higher viscosity and lower eruption rate. Compared with the Rümker mare dome, the Mairan non-mare dome is higher and steeper, and its magma eruption rate is generally lower than that of mare domes, with high magma viscosity, poor fluidity and long eruption cycle. Spatially, the four non-lunar mare domes where Mairan is located are linearly distributed and their material composition and formation time are similar, indicating that they are likely to be related to each other.

     

/

返回文章
返回