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volcanogenic
volcanogenic adj. 
/ˌvɑlkənəˈdʒɛnɪk/ of volcanic origin; having volcanic activity as the agent.
Brit. /ˌvɒlkənə(ʊ)ˈdʒɛnɪk/
, /ˌvɒlkənə(ʊ)ˈdʒɛnɪk/U.S. /ˌvɔlkənəˈdʒɛnɪk/
, /ˌvɔlkənəˈdʒɛnɪk//ˌvɑlkənəˈdʒɛnɪk/ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic
volcanized1775
volcanic1776
volcanogenic1907
1907 Chem. Abstr. 1 2358 The absence of rocks intermediate in SiO2, such as syenites or andesites,..suggests deep-seated rather than volcanogenic origin.
1977 A. Hallam Planet Earth 59/2 Glacial or volcanogenic sediments contain coarse particles which can be very unstable.
2005 K. C. Condie Earth as Evolving Planetary Syst. (ed. 5) vi. 179 The similarity in the distribution of excess volatiles in volcanic gases to those in near-surface reservoirs..strongly supports a volcanogenic origin for these gases.
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