泥盆纪末期是脊椎动物出现很的关键时期。
广西泥盆纪生物礁发育,分布广泛。
The Devonian reefs in Guangxi were well developed and distributed widely.
自从泥盆纪以来就生存的低等维管植物。
概要介绍广西泥盆纪地层特征及矿产资源。
The characteristic of Devonian strata and mineral resources in Guangxi are briefly introduced.
其时代主要为震旦纪—早古生代至泥盆纪。
黔南泥盆纪沉积盆地是一个停滞缺氧盆地。
The sedimentary basin of Devonian in Southern Guizhou, South China is euxinic.
在泥盆纪盆地演化中,地质事件与成矿关系极为密切。
Geological events during the Devonian basin evolution were very closely related to mineralization.
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.
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.
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.
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.
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.
其与上覆盖层—泥盆纪地层为剥离断层(动力滑脱变质变形带)接触。
The metamorphic complex has a stripping fault (dynamic decollement belt of metamorphic deformation) contact with over Devonian strata.
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.
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.
新疆阿舍勒、冲乎尔地区泥盆纪地层以火山岩为主,伴有陆源碎屑岩和内源沉积岩。
The volcanic rocks associated with the terrigenous elastic rocks and intrabasinal sedimentary rocks predominate in the Devonian strata in the Ashele and Chonghur regions, Xinjiang.
在奥陶纪、志留纪、泥盆纪、石炭纪,相继出现低等鱼类、古两栖类和古爬行类动物。
In the Ordovician, Silurian Period, the Devonian, Carboniferous, the advent of low amphibians and ancient ancient reptiles.
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.
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.
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.
根据对塔里木盆地露头剖面的层序地层学研究,建立了震旦-泥盆纪古海平面变化曲线。
Based on sequence strati graphy work for the outcrops in tarim basin the author sets up the sealevel changes curve of sinian period to devonian period.
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.
根据对塔里木盆地露头剖面的层序地层学研究,建立了震旦—泥盆纪古海平面变化曲线。
Based on sequence stratigraphy work for the outcrops in Tarim Basin, the author sets up the Sealevel changes curve of sinian period to Devonian period.
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.
拟鳞木植物群逐渐从泥盆纪植物群分离出来,繁盛于早石炭世早期,绝灭于早石炭世末期。
The flora reached its full flourish in the early Early Carboniferous and became extinct at the end of the Early Carboniferous.
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.
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.
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.
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