Mangere Lagoon is a tuff ring that formed during a phreatomagmatic eruption in the Auckland Volcanic field. The activity has been linked to the Mangere scoria cone behind it (immediately to the upper left). Rangitoto is to the upper left of this 2018 view from the SW.

Photo by Bruce Hayward, 2018.

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: crater | tuff ring | scoria cone | volcanic field

Auckland Volcanic Field