MARTIAN GRID SYSTEM, CONTINENTAL BLOCKS AND CONTINENTAL DRIFT

被引：5

作者：

WELLS, RA

机构：

[1] Space Sciences Laboratory University of California Berkeley, California

来源：

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY | 1969年 / 18卷 / 01期

关键词：

D O I：

10.1111/j.1365-246X.1969.tb00266.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Mars possesses two grid systems—a diagonal grid made up of lineaments trending approximately NW‐SE and NE‐SW, and a meridian‐latitude grid composed of lineaments trending approximately N‐S and E‐W. The distribution of angles between the two families of lineament planes in the diagonal grid implies the existence of a 4‐cell asymmetric convection pattern within the Martian mantle. The convection pattern readily explains the distribution of the major dark features, considered to be elevated continental blocks, by a continental drift hypothesis. The equatorial maria are elevated regions composed of E‐W overthrust structures, while Mare Acidalium, the only major dark feature in the northern hemisphere, is a ridge‐and‐trough system comparable to a terrestrial oceanic rise. The Martian maria bear structural resemblances to the lunar highlands and the Martian deserts are similar to the lunar maria. Mars has undergone extensive tectonic development over a geological time‐scale. Copyright © 1969, Wiley Blackwell. All rights reserved

引用

页码：109 / &

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