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Geophysical Deposits and Forest Disturbance from the Chaitén Eruption

This study examines the various types of geophysical deposits and the impact of the Chaitén eruption on forest ecosystems, specifically on the north side of the volcano. Key features include tree removal, toppled trees, scorch zones, and fluvial deposition in stream channels and wetlands. The eruption created diverse tephra layers, including thin sandy tephra in green forests and thick gravelly tephra in severely damaged areas. Observations also include debris flows and rockfall deposits, providing insights into post-eruption landscape changes. Photo by J. Pallister.

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Geophysical Deposits and Forest Disturbance from the Chaitén Eruption

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  1. F D E C G I C B J A H A B Types of geophysical deposits and forest disturbance resulting from Chaitén eruption, north side. Tree removal (A); toppled trees (B); scorch zone (C); fluvial deposition in stream channels (D), wetlands (E), and floodplain (F); tephrafall (thin [5-10 cm] sandy tephra in green forest (G), thick [15-50 cm] gravelly tephra in severely damaged forest (H), syn- or post-eruption debris flow in stream channel (I), syn- or post-eruption rockfall deposit on floodplain (J). Photo: J. Pallister.

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