The Impact of Rafted Scoria Cone Fragments on the Final Planform of Effusive Basaltic Lava Flows

Project Objetives

• Do rafted scoria cone fragments impact the final planform of effusive basaltic lava flows?

• If they do impact it then they need to be included in lava flow prediction models to improve preparedness

• Observe contacts between effusive basaltic flows and scoria cones to more accurately map similar contacts in Venusian volcanic flow fields

Data and Results

• Went to Devil’s Garden volcanic field in Oregon and assessed potential rafted coria cone fragments

• Small (<3m long axis) rafted scoria cone fragments do not significantly impact the lava flows

• Large (>15m long axis) rafted scoria cone fragments caused lava flows to flow around them, but did not       impact flow direction

• Rafted scoria cone fragments did not significantly impact the final planform of effusive basaltic flows at         Devil’s Garden volcanic field

Significance

• This project offers a new venue for better understanding human behaviors under natural disaster through human mobility networks. This could inform equitable resource allocation in disaster management

• The next step is to develop a human-centric framework for resource allocation to ensure the fairness and efficiency

Significance

• Current lava flow models do not need to include rafted scoria cone fragments altering the course of a lava flow in Devil’s Garden-like flows

• More work is needed at other field sites to support or refute our findings