Geologic map of the Eridania Quadrangle of Mars

The Eridania quadrangle is located within the densely cratered terrain of the southern hemisphere of Mars, east of the large circular Hellas Basin. The area contains three distinct physiographic provinces that divide the quadrangle into latitudinal belts. The northern part of the quadrangle is dominated by cratered upland plateau, the central part by plains, the southern part by a mottled surface of rugged topography and a high density of craters subdued by erosion. In general, the oldest geologic units occur in the upland terrains, the youngest in the central lowlands.

埃里达尼亚象限（Eridania quadrangle）坐落于火星南半球密布撞击坑的地貌区内，位于大型圆形撞击构造赫拉斯盆地（Hellas Basin）东侧。该区域包含三个独特的地貌分区（physiographic provinces），将本象限划分为多个纬向带。区域北部以遍布撞击坑的高原台地为主，中部以平原地貌为主，南部则为经侵蚀作用改造、兼具崎岖地形与高密度撞击坑的斑驳地表。总体而言，最古老的地质单元分布于高原地貌区，最年轻的地质单元则集中于中部低地区域。

搜集汇总

背景与挑战

背景概述

该数据集是火星Eridania区域的地质图，基于Mariner 9影像数字化绘制，比例为1:5,000,000。数据集描述了该区域位于火星南半球密集陨石坑地形中，包含三个不同的地貌省份：北部陨石坑高原、中部平原和南部崎岖地形，其中高地地形包含最古老的地质单元，而中央低地则包含最年轻的单元。