本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。
This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province.
广西泥盆纪的沉积相可划分为滨岸碎屑岩相、碳酸盐台地相和陆间海槽相等三个相区。
Study on the Devonian sedimentary facies in Guangxi reveals that it may be plotted to three facies areas: shoreface clastic area, carbonate platform area and inter-land sea trough.
华南泥盆纪的层状礁与加拿大泥盆纪的“低礁”较为相似，而丘状礁则与加拿大“高礁”及德国的泥盆纪礁类似。
The 'layer-reef' in South China is similar to the 'low reef' of Devonian period in Canada and the 'mound reef' is similar to the 'high reef' of Devonian period in Canada and Devonian reefs in Germany.
泥盆纪末期是脊椎动物出现很的关键时期。
泥盆纪晚期约三亿六千万年以前，五分之一海洋家族遭毁灭，同时毁灭的还有半数以上的海洋属生物。
Late Devonian About 360m years ago, a fifth of marine families were wiped out, alongside more than half of all marine genera.
这是一个渐进的变化，这个变化得益于贯穿泥盆纪无所作为的2千5百万年间此起彼伏的物种灭绝。
We had seen this as a gradual change, one fuelled by a series of extinction pulses spread over 25 million years of the Devonian's dog days.
柞山地区为一泥盆纪热水沉积盆地，其遥感环形构造是矿化集中区的基本格局。
Zhashan area is a slurry sedimentary basin, it's remote annular structure is main pattern of mineral region.
在泥盆纪时期，昆虫开始探索陆地环境。飞翔、外骨骼、和变态可能是昆虫成功的关键。
During the Devonian period, insects began to exploit terrestrial environments. Flight, the exoskeleton, and metamorphosis are probably keys to insect success.
本文采用新的区调填图理论和方法，详细划分了双王地区的泥盆纪地层，论述了岩相古地理特征。
The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
本文采用新的区调填图理论和方法，详细划分了双王地区的泥盆纪地层，论述了岩相古地理特征。
The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
石炭纪的，石炭系的：(属于或表示)地质上的一个分段，即紧跟着泥盆纪而早于二叠纪的古生代的。
Carboniferous: of, belonging to, or denoting a geologic division of the Paleozoic Era following the Devonian and preceding the Permian.
认为区内早埃姆斯期属深水陆棚至深水盆地沉积环境，为龙门山区泥盆纪沉积盆地的性质和演化提供了新资料。
This new explanation has provided new evidences for the interpretation of the nature and evolution of the Devonian sedimentary basins in the Longmen Mountain area.
羌南地区奥陶纪—泥盆纪生物和地层的发现，为与邻区地层划分对比和探讨羌塘构造演化提供了重要依据。
The discovery of Ordovician-Devonian biotas and strata provide new important evidence for the stratigraphic division and correlation and the study of the tectonic evolution of the Qiangtang area.
第一期北西向褶皱构造为轴向北西的断层转折褶皱，形成于中寒武世—泥盆纪，它们当时都是一些“水下隆起” ，在全区均有分布。
The first generational northwest folds were fault band folds, formed during Middle Cambrian to Devonian, which were "under water uplift", distributed over the whole studied area.
以往资料认为西成矿田的铅锌矿床均属泥盆纪热水—喷流沉积或它们的改造型矿床。
It was previously considered that all of the Pb-Zn deposits in the Xicheng orefield belong to Devonian hydrothermal-sedimentary deposits or their reworked ones.
自从泥盆纪以来就生存的低等维管植物。
收藏矿物、古生物学、中泥盆纪、二叠纪到早期的侏罗纪和白恶纪。
Mineral , palaeontology , middle devonian , permian to early jurassic , and cretaceous.
川西金沙江一带的志留—泥盆纪地层，前人没有建立岩石地层单位。
No lithostratigraphic unit has been set up for the Silurian-Devonian strata in the vicinity of the Jinsha River, western Sichuan.
本文系统研究了西昆仑-喀喇昆仑地区晚古生代-早中生代地层的岩石组合及其分布特征，结合所含的生物组合特征绘制了研究区泥盆纪、石炭纪、早中二叠世及三叠纪的岩相古地理略图。
The late Paleozoic-early Mesozoic strata in the Western Kunlun-Karakorum area are main research object and the accreting orogenic theory is used for structural analysis in this paper.
在泥盆纪期间，龙门山构造带北段位于上扬子古陆的西北边缘。
During the Devonian period, northward of Longmen Mountain structural belt is located in northwest border of Up Yangtzee Ancient Land.
在缺乏镜质体的海相地层和前泥盆纪地层中，应用该方法分析古地温更具有实际意义。
This method has a practical significance if it is used to determine palaeogeotherm in the marine and pre-Devonian strata which are lacking in vitrinite.
原信阳群龟山组就是沿主缝合带分布的前泥盆纪强应变构造地层体。
It is the Guishan Formation of! the former Xinyang Group that is the strongly deformed pre-Devonian tectono-stratigraphic unit distributed in the main suture zone.
该区泥盆纪不同时期的海平面变化曲线与全球泥盆纪陆棚沉积环境海平面变化曲线总体趋势基本一致。
The sea level change curves in varied epochs of the Devonian are given, which are essentially in accord with the global sea level change curves of Devonian shelf sedimentary environments.
该区泥盆纪不同时期的海平面变化曲线与全球泥盆纪陆棚沉积环境海平面变化曲线总体趋势基本一致。
The sea level change curves in varied epochs of the Devonian are given, which are essentially in accord with the global sea level change curves of Devonian shelf sedimentary environments.
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