Geologic map of Meridiani Planum, Mars

Scientific Investigations Map 3356
Prepared in cooperation with the National Aeronautics and Space Administration
By:  and 


Introduction and Background

The Meridiani Planum region of Mars—originally named due to its proximity to the Martian prime meridian—contains a variety of geologic units, including those that are crater‑related, that span the Early Noachian to Late Amazonian Epochs. Mars Global Surveyor (MGS) data indicate this area contains extensive layered deposits, some of which are rich in the mineral hematite. The National Aeronautics and Space Administration’s (NASA) Mars Exploration Rover (MER)  Opportunity  landed in Meridiani Planum in early 2004 and, at the time of this writing, is still conducting operations. A variety of water-altered bedrock outcrops have been studied and contain indications of prolonged surface and near-surface fluid/rock interactions. The purpose of this study is to use the more recent orbiter data to place the rover’s findings in a broader context by assessing the geologic and hydrologic histories of the region.

Suggested Citation

Hynek, B.M., and Di Achille, G., 2017, Geologic map of Meridiani Planum, Mars (ver. 1.1, April 2017): U.S. Geological Survey Scientific Investigations Map 3356, pamphlet 9 p., scale 1:2,000,000,

ISSN: 2329-132X (online)

ISSN: 2329-1311 (print)

Table of Contents

  • Introduction and Background
  • Data
  • Mapping Methods
  • Geologic History
  • Acknowledgments
  • References
Publication type Report
Publication Subtype USGS Numbered Series
Title Geologic map of Meridiani Planum, Mars
Series title Scientific Investigations Map
Series number 3356
DOI 10.3133/sim3356
Edition Version 1.0: Originally posted January 31, 2017; Version 1.1: April 28, 2017
Year Published 2017
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Astrogeology Science Center
Description Pamphlet: i, 9 p.; Sheet: 55.90 x 40.00 inches; Metadata; Spatial Data
Online Only (Y/N) N
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details