Exploring NASA’s Moon Rocks, Lunar Soil Samples & Meteorite Disks!!

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Presentation transcript:

Exploring NASA’s Moon Rocks, Lunar Soil Samples & Meteorite Disks!! National Aeronautics and Space Administration Exploring NASA’s Moon Rocks, Lunar Soil Samples & Meteorite Disks!!

Lunar Surface Features Two dramatically different kinds of terrain: Highlands: Mountainous terrain, scarred by craters Light gray/older Lowlands: ~ 3 km lower than highlands; smooth surfaces: Dark gray/younger Maria (pl. of mare): Basins flooded by lava flows

Impact Cratering Impact craters on the moon can be seen easily even with small telescopes. Ejecta from the impact can be seen as bright rays originating from young craters

Impact Cratering = ‘Soil’ formation Impacts of objects hitting the moon have pulverized the moon’s crust to physically break down the rocks to make smaller sand & clay sized particles called lunar soil or ‘Regolith’.

No sedimentary rocks => No sign of water ever present on the moon. Moon Rocks All moon rocks brought back to Earth are igneous (= solidified lava) No sedimentary rocks => No sign of water ever present on the moon. Different types of moon rocks: Vesicular (= containing holes from gas bubbles in the lava) basalts, typical of dark rocks found in maria Breccias (= fragments of different types of rock cemented together), also containing anorthosites (= bright, low-density rocks typical of highlands) Older rocks become pitted with small micrometeorite craters

Moon Rock Sample Disk

Moon Rock Samples Basalt Breccia Anorthosite

Lunar Soil Sample Disk

Lunar Soil Samples Lunar Soil - Orange Lunar Soil - Maria Lunar Soil - Highlands

Meteorite Sample Disk

Meteorite Samples 1-3 EET83227 ALH90411 ALLENDE

Meteorite Samples 4-6 GIBEON LEW87030 BRENHAM