Planetary Terrestrial Surfaces and Exploring Mars Jaclyn and Carlton Allen Astromaterials Research and Exploration Science at Johnson Space Center.

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Presentation transcript:

Planetary Terrestrial Surfaces and Exploring Mars Jaclyn and Carlton Allen Astromaterials Research and Exploration Science at Johnson Space Center

Earth Volcanoes Mars

Lava Layering – making and mapping a volcano

Impact Craters Mars Earth

Mars Dunes Earth Dunes

Mars and Earth both formed 4.5 billion years ago. Did Mars once have a warm, wet environment for life?

Examples of Meanders Earth Mars

Mesas in Utah

Plateau Region ESA-MEX Field of View 60 km wide

Kasei Valles Landslide

Mars Exploration Rover Landing Sites Meridiani Planum Gusev Crater Water-formed hematite? Ancient lake sediments?

Mars Exploration Rover

GUSEV CRATER 100 km COLOR-CODED TOPOGRAPHIC MAP – RED IS HIGH, BLUE IS LOW

Spirit landing ellipse in Gusev Crater – 100 X 20 km

Gusev Crater – still looking for the lakebed sediments Windblown soil and dust Volcanic rocks

Weathered Basalt at Spirit Site Surface coated with alteration products

Spirit’s Objectives

100 km MERIDIANI PLANUM AREAS OF HEMATITE CONCENTRTIONS – RED IS HIGH, BLUE IS LOW

Opportunity landing ellipse in Meridiani Planum – 100 X 20 km

Eagle Crater – Meridiani Planum Hematite-rich soil Sulfur-rich rocks

Blueberries are enriched in hematite (no goethite)

Hematite Concretions Navaho Sandstone, Utah |

Best Earth analog found so far: Hematite concretions from sandstone – Escalante, UT

Deposition in slow moving Water