这是晚奥陶世晚期大规模海退的结果。
This was the result from the large-scale regression in the Late Ordovician.
这种定量的岩相古地理图在我国南方中及晚奥陶世还是首次出现。
This is the first time in the study and mapping of the Middle and Late Ordovician in South China.
本文描述塔里木盆地晚奥陶世塔中北斜坡带良里塔格组的生烃生物组合特征。
This paper deals with the feature of bio-precursors of hydrocarbon in Lianglitake Formation, Late Ordovician of north-slope of Central Uplift of Tarim Basin.
碳酸盐岩台地广泛发育及其淹没事件是扬子地区晚奥陶世地层的重要特征之一。
The drowning of the carbonate platform is one of the most spectacular geological processes in the Late Ordovician on Yangtze block.
以往曾依该岩群岩块中的珊瑚、腕足类、腹足类化石等划分为晚奥陶世或古生代。
On the basis of fossils yielded from the exotic blocks, the age of this group-complex was defined to the Late Ordovician or the Paleozoic.
这一发现改变了对塔中地区构造特征的单一认识，启发了对塔里木盆地中晚奥陶世构造背景的新认识。
This discovery changed the sole knowledge of structural feature in Tazhong area and aroused new knowledge of Middle-Late Ordovician structural anticlines background in Tarim basin.
生物礁生存和发育有着严格的生存环境，但由于构造剥蚀作用，造成塔里木盆地中晚奥陶世原始沉积环境破坏殆尽。
Organic reef formation and development rely on very unique environment, but original sedimentary environment in middle to late Ordovician in Tarim was destroyed completely due to structure eroded.
由缝合线向北，沙尔布尔提山安山岩线是中奥陶世至中、晚志留世发育起来的火山岛弧。
From the suture line towards the north, an andesite line along Sharburti Mountain was the volcanic island arc developed from middle Ordovician to middle-late Silurian.
华北石炭纪岩溶型铝土矿的主要物质来源为下伏的晚寒武世—中奥陶世碳酸盐岩。
The material source of the Carboniferous karst type bauxite in North China mainly came from the underlying Late cambrian-middle Ordovician carbonate rock.
以奥陶系顶面所刻画的中央古隆起显示：中央古隆起仅在晚寒武世-石盒子期末有所显示。
The Central Paleouplift described by Ordovician top surface was merely present during late Cambrian to last stage of Shihezi.
以奥陶系顶面所刻画的中央古隆起显示：中央古隆起仅在晚寒武世-石盒子期末有所显示。
The Central Paleouplift described by Ordovician top surface was merely present during late Cambrian to last stage of Shihezi.
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