cryptovolcanic

cryptovolcanic

[¦krip·tō·väl′kan·ik]
(geology)
A small, nearly circular area of highly disturbed strata in which there is no evidence of volcanic materials to confirm the origin as being volcanic.
References in periodicals archive ?
Cryptovolcanic structure in Ohio of the type of the Steinheim Basin Geol Soc America Bull 32:74-5.