{ "title": "Fossae Features", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2020-05-11/PSP_009003_1890.jpg", "excerpt": "This image shows a part of the Cerberus Fossae, a system of aligned fissures east of Elysium Planitia." }, "version": "1.5", "identifier": "PSP_009003_1890", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 11 MAY 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "Fossae Features" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "An enhanced color closeup of one of the fractures. The dark material (blue in enhanced color) is basaltic sand. Less than 1 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-05-11/PSP_009003_1890.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


This image shows a part of the Cerberus Fossae, a system of aligned fissures east of Elysium.

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The fissures were probably the source of floods of both water and lava. The most recent event was a massive outpouring of basaltic lava (a fluid-type of lava like that commonly erupted by Kilauea in Hawaii), which produced a host of volcanic features in the region.

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Here, as at other locations, the fossae appear a striking blue in HiRISE false color. Blue tones are usually associated with basaltic rock. The blue ripples found on the trough floor could be wind-blown sand comprised of fine fragments of basalt. The upper plains are a relatively bland tone, perhaps due to a thin coating of dust; however, impact craters in the image also show bluish boulders and ripples, indicating that they have excavated the same basaltic rock layers cut by the fossae. This is typical of the region, as floods of lava coat much of the area.

" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "A larger look at the full scene. The dark material is basaltic sand. Less than 5 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-05-11/PSP_009003_1890-2.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "

ID: PSP_009003_1890
date: 28 June 2008
altitude: 276 km

NASA/JPL/UArizona

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