蛇绿岩中铬铁矿矿床成因：Fe Mg同位素的探索性研究 学术讲堂 北地讲堂 中国地质大学

Round-17 hunt: picked; source: new-source search (r17: learned societies, museum/library lecture series, summer schools, scholarly conferences, newly covered languages); channel screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality tier C + tier-C depth check passed; strict per-title check + final strict pass; oEmbed verified.

A 41-minute video from 李汉敖: “蛇绿岩中铬铁矿矿床成因：Fe Mg同位素的探索性研究 学术讲堂 北地讲堂 中国地质大学”.

Video by 李汉敖, played through YouTube's embedded player.