{"@context": "https://schema.org", "@type": "CreativeWork", "additionalType": "USGS Numbered Series", "name": "Geologic map of Meridiani Planum, Mars", "identifier": [{"@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "sim3356", "url": "https://pubs.usgs.gov/publication/sim3356"}, {"@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70170060}, {"@type": "PropertyValue", "propertyID": "DOI", "value": "10.3133/sim3356", "url": "https://doi.org/10.3133/sim3356"}], "inLanguage": "en", "isPartOf": [{"@type": "CreativeWorkSeries", "name": "Scientific Investigations Map"}], "datePublished": "2017", "dateModified": "2023-03-20", "abstract": "Introduction and BackgroundThe Meridiani Planum region of Mars\u2014originally named due to its proximity to the Martian prime meridian\u2014contains a variety of geologic units, including those that are crater\u2011related, 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\u2019s (NASA) Mars Exploration Rover (MER)\u00a0 Opportunity\u00a0 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\u2019s findings in a broader context by assessing the geologic and hydrologic histories of the region.", "description": "Pamphlet: i, 9 p.; Sheet: 55.90 x 40.00 inches; Metadata; Spatial Data", "publisher": {"@type": "Organization", "name": "U.S. Geological Survey"}, "author": [{"@type": "Person", "name": "Di Achille, Gaetano", "givenName": "Gaetano", "familyName": "Di Achille", "affiliation": [{"@type": "Organization", "name": "Istituo Nazionale de Astrofisica, Teramo, Italy"}]}, {"@type": "Person", "name": "Hynek, Brian M.", "givenName": "Brian M.", "familyName": "Hynek", "affiliation": [{"@type": "Organization", "name": "University of Colorada"}]}], "funder": [{"@type": "Organization", "name": "Astrogeology Science Center", "url": "https://www.usgs.gov/centers/astrogeology-science-center"}]}