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Degradation of Quaternary cinder cones in the Cima volcanic field, Mojave Desert, California

Degradation of Quaternary cinder cones in the Cima volcanic field, Mojave Desert, California. Overview by Richard Fletcher. Location Overview. Study.

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Degradation of Quaternary cinder cones in the Cima volcanic field, Mojave Desert, California

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  1. Degradation of Quaternary cinder cones in the Cima volcanic field, Mojave Desert, California Overview by Richard Fletcher

  2. Location Overview

  3. Study • Determine the morphologic effects on cinder cones in an arid environment in order to determine any consistent relationships between the overall cone shape and time. • Note: Time also represents erosion

  4. Measurement of Morphometric Parameters • Obtained with a combination of field observations and photometric observations. • Slope and drainage morphology were the focus • Age, height/width=slope min max and median, drainage development related to age, apron spread

  5. Slope Morphology

  6. Drainage Morphology

  7. Conclusions • Apron volume positive growth attributed to initial erosion • Drainage volume is chaotic and shallow at young ages, spreading and incising with age • Slope loss clearly attributed to erosion over time • In this arid environment Cone Morphology is a function of time and erosion

  8. Thanks!!!

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