Ordovician信息详情
n.奥陶系，奥陶纪
adj.奥陶纪的
Ordovician───n.奥陶系，奥陶纪；adj.奥陶纪的
the Ordovician───奥陶纪
Kordofanian───n.（非洲）科尔多凡语
Cordovan───n.科尔多瓦城人；科尔多瓦城语；adj.科尔多瓦城的；科尔多瓦城人的；科尔多瓦城语的；n.(cordovan)科尔多瓦皮革
Mordovia───摩多维亚
logician───n.逻辑学家；论理学者
mortician───n.（美）殡葬业者；丧事承办人
optician───n.眼镜商；光学仪器商；光学仪器制造者
ordalian───奥拉利安
However, some researchers believe that a GRB was responsible for the Ordovician mass extinction approximately 450 million years ago.───然而，有一些研究者认为，大约4.5亿年前的奥陶纪大灭绝是伽马射线爆引起的。
The Ordovician ice age happened 444 million years ago, and records have suggested that CO2 levels were relatively high then.───奥陶纪冰河时期发生在4.44亿年前，有记录表明其CO2含量较高。
dry mountain ranges of the western United States contain rocks dating back 440 to 510 million years, to the Ordovician period, and teeming with evidence of tropical marine life.───美国西部干燥的山脉包含了距今4.4亿至5.1亿年前的奥陶纪岩石，其中充斥着热带海洋生物生存的迹象。
It was an important evolution and marked the end of transgression and regression cycle of the Cambrian and Ordovician in Tarim area.───这标志着塔里木地区寒武纪和奥陶纪海进海退旋回的终结。
The tectonic framework of North Qilian in Early Ordovician should be similar to that of the Bafin Bay and the Queen Elizabeth Islands.───北祁连早奥陶世海域与现在加拿大北部巴芬湾及伊丽莎白女王群岛的构造格局相似。
tussles at the International Commission on Stratigraphy over the boundaries of the Ordovician era do not normally capture headlines.───国际地层学委员会上关于奥陶纪边界的争论也一般不会占据新闻头条。
The configuration of Ordovician of lower Palaeozoic system highly inherits that of Archaean group and both have a strong consistency.───下古生界奥陶系构造具有很强的继承性，其构造格局与太古界有很强的一致性；
This proposed method has been used for quality evaluation of natural Gamma spectral log in the Ordovician carbonate strata in Tahe oilfield.───目前这种方法在塔河油田奥陶系碳酸岩盐地层的能谱测井资料质量评价中取得了明显的效果。
The long distance thrust system is composed of Ordovician and Silurian and some part of it shows as a klippe.───远距离冲断系统由奥陶系和志留系构成，局部地区表现为飞来峰；
The Ordovician lithofacies and biofacies change greatly at different localities of the Yangtze Region, South China.
By the end of the Ordovician they had already radiated into many of the niches they occupy today.
Dichograptus species are very widespread in the early Ordovician rocks.
Reinterpreted as an Ordovician volcanogenic massive and disseminated sulphide deposit.
Mid-Lower Ordovician reservoir was characterized by early accumulation, early filling and high level of oil and gas evolvement. Late Ordovician-Silurian was main period for hydrocarbon accumulation.
Straddling the late Ordovician period and the early Silurian period, the Andean-Saharan ice age was marked by a mass extinction, the second most severe in Earth's history.
The weathering crust of Majiagou Formation in Ordovician of Changqing Gasfield in Ordos Basin is the major pay zone with the evaporated marginal sea facies.
Cambrian - Ordovician petroleum system is the most important system type in the northern region of Tarim basin.
RioFinex examined the Ordovician volcanic rocks of County Tyrone for base metals but found only minor intersections of low-grade copper mineralisation.