黄金水^1,2,3,,
相松^1,2,
杨安⁴,
王永明⁵
1. 中国科学技术大学地球和空间科学学院, 合肥 230026
2. 中国科学院比较行星学卓越中心, 合肥 230026
3. 中国科学技术大学蒙城地球物理野外科学观测研究站, 合肥 230026
4. 中国科学院海洋研究所海洋地质与环境重点实验室, 青岛 266071
5. 云南大学地球科学学院地球物理系, 昆明 650500

基金项目: 国家自然科学基金面上项目(42074105, 41474082), 中国科学院战略性先导科技专项(XDB41000000)以及中国科学院知识创新工程资助


详细信息

作者简介: 黄金水, 男, 博士生导师, 主要从事地球与行星的重力场与地幔动力学的研究工作.E-mail: jshhuang@ustc.edu.cn

中图分类号: P541;P315

收稿日期:2021-07-22
修回日期:2021-08-30
上线日期:2021-10-10

Mantle convection, lithosphere evolution and resurfacing of Venus

HUANG JinShui^1,2,3,,
XIANG Song^1,2,
YANG An⁴,
WANG YongMing⁵
1. School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
2. CAS Center for Excellence in Comparative Planetology, Hefei 230026, China
3. Mengcheng National Geophysical Observatory, University of Science and Technology of China, Hefei 230026, China
4. Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
5. Department of Geophysics, School of Earth Science, Yunnan University, Kunming 650500, China


MSC: P541;P315

--> Received Date: 22 July 2021
Revised Date: 30 August 2021
Available Online: 10 October 2021


摘要
摘要:金星在大小、轨道半径等方面与地球非常接近，但现今的观测显示金星在大气、表面温度、重力与地形特征等方面与地球非常不同.对固体金星而言，最显著特征是有火山活动但没有活动的板块构造运动、表面平均大约500±200 Ma的年龄显示金星发生过全球性表面快速更新、重力与地形强相关.本文在简要介绍已有工作的基础上，主要介绍我们基于这些观测特征开展的金星动力学研究，包括现今地幔的对流模式、相变对表面更新的影响、地壳厚度、岩石圈演化与表面更新等研究工作和取得的初步认识.
关键词: 金星地幔对流/
金星岩石圈演化/
金星表面更新/
灾难性表面更新/
金星岩石圈拆沉

Abstract:Venus is very similar to the Earth in size and orbit radius, but the current observations show that Venus is very different from the Earth in atmosphere, surface temperature and also in gravity and topographic features. For the solid part of the Venus, the most prominent characteristics include 1) there are some active volcanisms but no active plate tectonics, 2) an average surface age of ~500±200 Ma indicates that Venus has experienced rapid global resurfacing, and 3) the gravity and the topography are strongly correlated. In this paper, we first give a brief introduction of some previous works and then we focus on our recent studies on the dynamics of Venus that associated with these observational characteristics. The main contents of these studies include the present mantle convection mode of Venus, the effect of phase transition on Venusian resurfacing, the thickness of the Venusian crust, and the lithosphere evolution and resurfacing of Venus. The preliminary results and its implications are listed in the concluding remarks.
Key words:Venus mantle convection/
Venus lithosphere evolution/
Venus resurfacing/
Catastrophic resurfacing/
Venus lithospheric detachment



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