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Joshua Tree National Park - Mojave Ecozone:
Geology Tour Road:

Stop #11

Debris Flows

Occuring at the mouth of this steep canyon in the Hexie Mountains, are irregular mounds of gneiss debris lacking a coating of patina. This lack of patina indicates more recent flows, not yet resulting in a debris fan. During heavy rains, the debris becomes saturated and oozes toward lower ground. As materials from higher up in the canyon wear down, a debris fan may develop, then possibly, over a long period of time an alluvial fan.

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GLOSSARY > alluvial fan, gneiss, patina

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Debris flow

ecology: wildlife - plants - geography: places - MAPS - map/sat - roads & trails: route 66 - old west - communities - weather - book store
ghost towns - gold mines - parks & public lands: wilderness - native culture - history - geology: natural features - glossary - comments
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