basalt

Matching volcanic ash to its source

The collation of whole-rock major and trace element data has led to the development of a method to correlate volcanic ash samples to their source volcanic centres.

Tags:Auckland Volcanic Field basalt correlation monogenetic tephra tephrochronology

Conundrum of Auckland’s Rangitoto volcano

Hazard scenarios for monogenetic (clustered) volcanism must cover a range of eruption periods as revealed by a study of Rangitoto.

Tags:basalt eruption magma monogenetic Rangitoto

Cultural approach to geosite evaluation

A unique convergence of ecological, geological and cultural values in South Auckland showcases the need to integrate multiple elements in volcanic site evaluations.