Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Fiamme Pumice

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_707

Synonym: Fiamme fragment,  Magma fragment

Magma fragments are also known as plastic fragments or fiamme. These broken fragments form when magma in a plastic viscous state explodes. The fragments have flame-like, branched, spindle-shaped or banded shapes. When the fiamme is orientated in a specific array pattern due to flowing and flattening effects, it is called a pseudo-flow structure or a quasi-flow structure. Magma fragments are indicative of welded pyroclastic debris (Fig. 6).
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© Springer Nature Singapore Pte Ltd. 2020