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xenothermal
xenothermal adj. 
/ˌzɛnoʊˈθərm(ə)l/, /ˌzinəˈθərm(ə)l/, /ˌzinoʊˈθərm(ə)l/ Geology applied to mineral deposits formed by hydrothermal action at high temperatures but at a shallow depth.
Brit. /ˌzɛnə(ʊ)ˈθəːml/
, /ˌzɛnə(ʊ)ˈθəːml/U.S. /ˌzɛnəˈθərm(ə)l/
, /ˌzɛnəˈθərm(ə)l//ˌzɛnoʊˈθərm(ə)l//ˌzinəˈθərm(ə)l//ˌzinoʊˈθərm(ə)l/ΘΚΠ
the world > the earth > minerals > mineral deposits > [adjective] > types of deposit
veined1785
nodular1794
vein1822
wandering1886
warped1886
hypothermal1906
supergene1914
mesothermal1922
podiform1928
xenothermal1935
1935 A. F. Buddington in Econ. Geol. XXX. 209 The writer therefore proposes the term xenothermal for these deposits,..suggestive of the peculiar textures for the normal high~temperature mineral assemblages involved, of the abnormal association of high temperature with shallow depth, and of the ‘telescoped’ character of many of the deposits.
1976 Nature 10 June 482/2 The tin mineralisation of Missouri bears a resemblance to the subvolcanic (xenothermal) deposits of Japan.
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