A History of Andesite Production via Magma Mixing and Mingling Revealed Microscopically at Ngauruhoe Volcano

About this item

Title

A History of Andesite Production via Magma Mixing and Mingling Revealed Microscopically at Ngauruhoe Volcano

Content partner

University of Otago

Collection

Otago University Research Archive

Description

Many andesites erupted at arc volcanoes are the products of magma mixing, and this process could be important in triggering their eruption. Throughout the life of Ngauruhoe volcano (∼2.5 ka), erupted andesites lack macroscopic enclaves or lithological features of mingled magma. However, intricate microscopic features of magma mixing and mingling occur. Plagioclase phenocrysts have a wide range of textures. Their diverse 87Sr/86Sr values (0.7039–0.7060) are mostly discordant with the groundmas...

Read more

Format

Research paper

Research format

Scholarly text / Journal article

Thesis level

Article

Date created

2022-10

Creator

Cocker, Kate / Shane, Phil / Cronin, Shane / Stirling, Claudine / Reid, Malcolm

URL

https://hdl.handle.net/10523/22747

Related subjects

andesite / magma / plagioclase / Sr isotopes / subduction / volcano

What is the copyright status of this item?

Share, Modify, Use commercially

See below for specifics about how you may use this item.

More Information

University of Otago has this to say about the rights status of this item:

CC BY V4.0

What can I do with this item?

You must always check with University of Otago to confirm the specific terms of use, but this is our understanding:

Non-infringing use

NZ Copyright law does not prevent every use of a copyright work. You should consider what you can and cannot do with a copyright work.

Share it

This item is suitable for copying and sharing with others, without further permission.

Modify it

This item is suitable for modifying, remixing and building upon, without further permission.

Use it commercially

This item is suitable for commercial use, without further permission.