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1)  premedial Ordovician
中奥陶世前的
2)  Middle Ordovician
中奥陶世
1.
Characteristics of Middle Ordovician Organic Reefs in Bachu Area;
巴楚地区中奥陶世生物礁造礁生物特征
2.
By means of core observation and log analysis of reservoir,it is recognized that widely distributed Tazhong uplift is formed from the late of Middle Ordovician to the early of Late Ordovician(from Llandeilo to Early Caradoc).
通过岩心观察、测井储集层分析等手段,识别出塔中凸起区广泛分布形成于中奥陶世晚期-晚奥陶世早期(兰代洛世-卡拉道克世早期)、发育于下奥陶统鹰山组中上部碳酸盐岩中且被上奥陶统良里塔格组覆盖的古潜山岩溶储集层,其原岩主要为开阔-半局限台地相颗粒灰岩、泥晶灰岩、藻灰岩夹白云岩。
3.
The middle Ordovician volcanic rocks of the Daliugou Group in the Hami-Wupu area of the Eastern Tianshan seem to be the oldest strata of the studied area.
新疆东天山哈密五堡地区中奥陶世大柳沟组是研究区出露的最老的火山岩地层,大地构造属于准噶尔板块-大南湖复合岛弧火山岩带。
3)  middle Ordovician epoch
中奥陶世
1.
The common traits of the ores, ore body conformation and ore-bearing rock series of Middle Ordovician Epoch in central Hunan were briefly introduced; the traits of organic geochemistry, RE, stable isotopes, microelements and macro-elements of the kind of Mn-ores were summarized emphatically.
简要介绍了湘中地区中奥陶世锰矿含矿岩系、矿体形态、矿石等一般特征,重点总结了该类型锰矿的常量元素、微量元素、稳定同位素及稀土元素、有机地球化学特征。
4)  Middle-Late Ordovician
中晚奥陶世
5)  late Arenig
中奥陶世Arenig
6)  early to middle Ordovician
早中奥陶世
1.
In recent years,it discovered in the regional survey of the scale of 1∶50000 that the early to middle Ordovician absent in the southern Baoshan of western Yunnan.
近年的1∶5万区调工作发现,在滇西保山南部地区缺失早中奥陶世沉积,这是一个值得探索的重大地质问题,因为过去认为施甸地层小区的寒武-奥陶纪为连续沉积。
补充资料:山中效陶
【诗文】:
落第非有罪,兹山聊归止。
山猿隔云住,共饮山中水。
读书时有兴,坐石忘却起。
西山忽然暮,往往遗巾履。
经时一出门,兼候僮仆喜。
常被山翁笑,求名岂如此。
齿发老未衰,何如且求己。


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