查询词典 brachiopods

In his more than half a century' s scientific and educational career, Professor Yang made significant contributions to Chinese geology and paleontology, especially in the fields of fossil brachiopods, Carboniferous biostratigraphy, paleobio-geography, and paleoecology.

杨式溥对中国西北和西南地区石炭纪的腕足动物化石的研究为中国石炭纪地层的内部界线划分、对比、化石组合、地理区系及沉积类型提供了重要证据。

Hybrids of carbonate and terrigenous sediments Carbonate with terrigenous sediments are of characteristic from Emsian to Eifelian in stable shallow-sea faciesregion in Longmenshan area, and they can be classified evidently into hybrid Ⅰ and hybrid Ⅱ(Jingbaoshi-type). Type Ⅰ produced in mud shelf setting occupied hundreds of tempestite beds in which bottom cast、 hummocky cross bedding sandstones、 coquina were inter-beddded with shales that beared a great deal of verm traces、 bioturbations、 benthic communities dominative of brachiopods. Type Ⅱ in sand-mud-marl shelf was characterized by high-energy foreshore sandbeach facies and shelly bank facies.

碳酸盐与陆源碎屑混合沉积方面对微相、相特征、旋回样式、沉积机理研究表明，龙门山地区泥盆纪稳定浅海相区Emsian期和Eifelian期混合沉积十分发育，颇具特色，明显可以划分为两种类型：混积Ⅰ型，泥质陆棚背景下发育风暴沉积组构，幕式风暴期产生具丘状层理、底流冲刷构造的钙质砂岩、介壳岩，平息期则形成具大量虫管和生物扰动的深灰色、黄绿色页岩及海百合茎灰岩，腕足动物等大量繁盛；混积Ⅱ型，砂泥灰质陆棚背景下以发育高能前滨沙滩及生物介屑滩为特色，近滨至陆棚的砂泥灰互为混合，三者比例接近，肉眼难以区别确切岩石类型。

Cathodoluminescence and δ〓O、δ〓C values of the sparites of geopetal structures within fossil brachiopods indicate that the sparcalcites were formed in equilibrium with various stages of postdepositional digenesis or catagenesis with each stage's δ〓O of interstitial water different.

3碳酸盐岩早期成岩胶结物或孔洞充填中的亮晶方解石是除腕足化石外获取碳酸盐岩原始氧、碳同位素组成的又一种常用样品。但本论文研究发现，龙门山地区碳酸盐岩的成岩后生改造具有多期多次现象，不同改造期次的流体之间存在明显的δ〓O差异，但无明显的δ〓C差别。

More than 90% of Permian genera of sponges, corals and brachiopods vanished in the extinction.

二叠纪海绵、珊瑚和腕足动物三个属多于90%的物种在大灭绝事件中消失了。

After doing textual research, the experts declared that these Chinese characters identical in size, direction, space and form were actually the fossils of pale-organisms including sponges, stems of sea lily, corals, brachiopods and so on 270 million years ago because they have found the fossils bits of these pale-organisms on the characters.

大雨停后，一个村民前去树旁观看，他不禁大惊失色：原来，跌落于地的树冠下面躺着一条被雷击的蟒蛇，蟒蛇嘴里衔着一只遭雷霹死的猴子；猴子嘴里叼着一个玉米棒子；而在蟒蛇脊背靠前部分，还躺着一只兔子大小的鼯鼠尸体。

The Lower Cambrian Balang Fauna from the upper part of Balang Formation of both Kaili City and Jiangku, Zhenyuan consists of six phyla, includes trilobites, bradoriida and large bivalved arthropods of arthropods, coelenterates, brachiopods, mollusks, eocrinoids and algae, a large variety of ichnofossils.

新近发现的杷榔动物群产于贵州东部凯里市西郊和镇远县江古镇早寒武世都匀期晚期杷榔组上部，由6个大门类化石组成，包括了腔肠动物、蠕形动物、腕足动物、棘皮动物、软体动物、节肢动物及大量遗迹和藻类化石。

So brachiopods as indicators of original isotopic compositions of marine limestones is undoubtful.

因此从本论文的研究看，腕足化石作为碳酸盐岩原始氧、碳同位素研究的较为理想的样品不应受到怀疑。

And based on the correlation between the conodonts and brachiopods, the conflict of the division of the Late Carboniferous-Early Permian between the Gondwana and Tethys was discovered.

发现了牙形石和腕足类在晚石炭世一早二叠世地层划分的意见分歧，指出现在的冈瓦纳相和特提斯相晚石炭世一早二叠世地层划分的主导门类之间还存在着巨大矛盾，有待于进一步解决。

Later, conditions were correct for fossilization of the shells and hard parts of various invertebrates, among them brachiopods.

以后， 条件就壳的固定化和各种 invertebrates 的艰难的一些部分而言正确，在他们 brachiopods 中间。

These brachiopods, after fossilization, became concretions.

这些 brachiopods ，在固定化以后，成为了 concretions 。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。