{ "title": "A Fan-Shaped Deposit in a Valles Marineris Trough", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2020-07-15/ESP_022949_1650.jpg", "excerpt": "This image shows the western half of a fan-shaped deposit in a small trough in the Valles Marineris system." }, "version": "1.5", "identifier": "ESP_022949_1650", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 15 July 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "A Fan-Shaped Deposit in a Valles Marineris Trough" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "A section of the full observation. Less than 5 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-07-15/ESP_022949_1650.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "
This image shows the western half of a fan-shaped deposit in a small trough in the Valles Marineris system.
The fan is at the mouth of a smaller canyon, and may consist of material eroded from the canyon by flowing water in the distant past. The fan itself shows many layers, each likely corresponding to a different episode in the history of the system.
At the base of the fan, a series of light-toned layers are visible. Since these deposits extend beyond the base of the fan in addition to being different in color and texture, they may indicate a different type of sediment deposition before the fan was emplaced.
ID: ESP_022949_1650
date: 19 June 2011
altitude: 257 km
NASA/JPL/UArizona