出典:Wiktionary
出典:『Wiktionary』 (2026/01/01 18:15 UTC 版)
epidosite (countable and uncountable, plural epidosites)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/21 20:02 UTC 版)
Epidosite (
/ɨˈpɪdəsaɪt/) is a highly altered epidote and quartz bearing rock. It is the result of slow hydrothermal fluid alteration of basalt that occurs below the black smokers within mid-oceanic ridge spreading centers. Similar altered rocks have been identified within ophiolite complexes and associated sulfide ore deposits. Epidosites represent the zone of intense metal leaching below and lateral to the black smoker environment which is the result of convection of ocean water through the fractured basalts of the ridge flanks.