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Lunar Volcanism

Lunar Volcanism. Angel Garlant Mentor: Dr. Lisa Gaddis. Pyroclastic Deposits. Volcanic material Low albedo Smooth, rough, blocky To name a few: Atlas Alphonsus J. Herschel Volcanic source vents Floor fractures Craters. Volcanism. Strombolian Typically low silica content Bubbles

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Lunar Volcanism

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  1. Lunar Volcanism Angel Garlant Mentor: Dr. Lisa Gaddis

  2. Pyroclastic Deposits • Volcanic material • Low albedo • Smooth, rough, blocky • To name a few: • Atlas • Alphonsus • J. Herschel • Volcanic source vents • Floor fractures • Craters

  3. Volcanism • Strombolian • Typically low silica content • Bubbles • Vulcanian • Higher presence of silica • Caprock • Intermittent

  4. Methods • Georeferencing • ArcGIS • Crater Measurements • ArcGIS • ISIS • Excel • Modeling • Excel

  5. Magma Fagents & Wilson (1993)

  6. Ejection Fagents & Wilson (1993)

  7. Trajectory

  8. ArcGIS • ArcCatalog • Assign coordinate system to images • ArcMap • Import images • Create tie points to relocate images to a different point • Allows for easier viewing

  9. ISIS • Craters are measured • Screenshots are taken to keep track of which craters have been measured • Can also be used to create a mosaic

  10. Excel • Used for entering data and doing computations • Crater measurements are entered • Average diameter • Rim height • Use ArcMap to locate coordinates of crater • Modeling is done • Initial conditions (pressure, gas content, etc.) • Range of pyroclasts

  11. J Herschel Crater

  12. Major Deposit

  13. Characteristics • 70% olivine • 30% pyroxene • 165 km diameter • Area: 60 km by 35 km

  14. Goals • Develop an isopach map • Use model to run a simulation • Develop a general model • Are pyroclastic deposits from different areas erupted by different means • How do they differ

  15. Questions?

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