所谓“罗泉井会议”纯系子虚乌有，其历史意义亦属无中生有。
The so-called Zizhou Luoquanjing Meeting does not exist in history, not to speak of its historical significance.
钻井揭示，中—下侏罗统为中生界主要烃源岩。
According to the drilling results, the middle-lower Jurassic can be considered the main Mesozoic source rock.
二道岭矿区侏罗系的成因属鄂尔多斯中生代盆地西缘的陆相碎屑沉积， 岩石地层自下而上为富县组、延安组、直罗组和安定组。
The Erdaoling mine is located on the western margin of the Mesozoic Odors basin and belongs to continental clastic deposit during the Jurassic period.
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