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).
Fiamme pumice and its internal structure (Yanqing and Huarou, Beijing). (1) Clastics with amygdaloidal and rhyolitic structures; (2), (3), (4) devitrified clastics with comb edges, chondrules and inlays, respectively
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(2020). Fiamme Pumice. In: Chen, A., Ng, Y., Zhang, E., Tian, M. (eds) Dictionary of Geotourism. Springer, Singapore. https://doi.org/10.1007/978-981-13-2538-0_707
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DOI: https://doi.org/10.1007/978-981-13-2538-0_707
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