第26卷第1期 2012年2月
现代地质 GEOSCIENCE
月岭形成机制及其与潮汐力的相关性分析
Vol. 26Na.1 Feb. 2012
韦蔚12，刘少峰12，王凯12，奚晓旭12，李力12，焦中虎12，吴志远2（800080001）摘要：月岭作为月表常见的线性构造类型之一，具有一定的分布规律。利用LRO（LanarReconnaissanceOrbiter）的DEM 数据提取月岭剖面并进行了构造分析，认为月岭主体为逆冲断层受加牵引褶皱的挤压构造形成机制。前人多用月海盆地沉降叠加月球热能收缩解释月岭的成因，但它无法解释盆地中央月岭呈近南北向的优选方位，这种现象可能是受到
岭形成的主因。综合利用娣嫁一号CCD影像数据、LunarOrbiter和LRO全色波段影像数据，解译识别出月球正面中低纬度1464条月岭。对其进行方向统计，结果表明，月岭整体走向也与Melosh预测的在潮汐力作用下形成的构造样式
相似。由此推测，月岭的展布与潮汐力具有很强的相关性，进一步论证了月岭的形成与潮汐力有关。关键词：潮汐力；月岭；线性构造；热能演化
中图分类号：P184.6
文献标志码：A
文章编号：10008527(2012)010198-07
FormationMechanismofLunarRidgesandtheCorrelationAnalysis
withTidalForces
WEI Weil-, LIU Shao-feng'-2, WANG Kai'-2, XI Xiao-xu'-2, LI Li'-2, JIAO Zhong-hu'-2, WU Zhi-yuan'?
(1. School of Earth Sciences and Resouroes, China Unisersity of Geosciences, Bejing100083, China
2. State Key Laboratory of Geologieal Proceses and Mineral Resourees, China Ursiversity of Geociences, Bejing100083, China)
Abstract: As a common linear structure on the surface of the Moon, lunar ridges have certain distribution regu-larity.The maps of lunar ridges obtained from the DEM data of LRO (Lunar Reconnaissance Orbiter)were analyzed, and the result revealed that most lunar ridges are of compressional formation mechanism as a combina tion of drag folds on the surface and thrust faults undermeath. The former study always explained the dynamic origin of lunar ridges by a combination of the basalt subsidence of the mare basin and the thermal shrink of the Moon, but it cannot explain the preferred NS orientation of these lunar ridges in the central area of the mare ba-sin. This phenomenon is probably influenced by the regional compressional stress oriented to the east-west, which is corresponding to the stress state of the tidal forces at low and middle latitudes of the Moon, and it can be inferred that tidal forces may be the main factor for the formation of these lunar ridges. According to the CCD images of Chang'e I and panchromatic images of Lunar Orbiter and LRO, 1,464 pieces of lunar ridges at low and middle latitudes of the Moon were identified, and the orientations of them were analyzed. It reveals that the overall trend of these lunar ridges is roughly consistent with the tectonic patterm predicted with tidal forces by Melosh. It can be concluded that there is a strong correlation between tidal forces and the distribution styles of
lunar ridges. Furthermore, this study proves that the formation of lunar ridges is related to tidal forces. Key words: tidal force; lunar ridge; linear structure; thermal evolution
收稿日期：2011-04-25；改圆日期：2011-10-20；责任编辑：潘令枝。
基金项目：国家"863"计划重点项目（2009AA122201)；高等学校学科创新引智计划项目（B07011）。
作者简介：韦书蔚，女，硕士研究生，1984年出生，资源与环境遥感专业，主要从事逐感信息提取的研究工作。
Email;weiweimis@163.com
通信作者：刘少峰，男，教授，博士生导师，1959年出生，构造地质学专业，主要从事盆地动力学、盆山关系、大地构造、逐
感信息提取及地学应用等方面的教学和科研工作。Email：shaofeng@cughedu cn。