查询词典 brachiopod

The average δ〓O value of brachiopod shells from Givetian in Longmenshan area is comparable with those of the same geologic time from North America and Australia. The three continents were in the same latitudes although the Australia was in the south hemisphere, hence the annual average temperatures.

5龙门山地区中泥盆世腕足化石的δ〓O与同时期北美和澳大利亚腕足化石的δ〓O值非常接近，它们当时都是地处低纬度地区，海水年平均温度相同，因此三个地区海洋的δ〓O值也应相同。

The Composition of Trace Elements of the Brachiopod Shell from Devonian System, Liujing, Guangxi, and Its Preservation of Original Seawater information

广西六景泥盆系腕足壳体的微量元素组成及其对海水信息的保存，程红光；李心清；王克卓；黄思静；王兵；程建中-66文免费论文库，大学生论文库

The benthic assemblage eco-positions of brachiopod communities in the early Early Carboniferous were between BA1 and BA2, and there were no BA3-BA5 deep-water communities in this area, which indicated that the sea water depth in this period was commonly less than 10 m.

本区早石炭世早期腕足动物群落的生态位介于BA1和BA2之间，缺乏BA3至BA5较深水群落（BA-Benthic Assemblage，底栖组合），说明该区早石炭世早期海水深度一般不超过10 m。

Thus, it can be inferred that the Selong Group in the southern Tibet is also Lopingian in age in view of its correctable brachiopod faunas with those of the Kalabagh Member of the upper Wargal Formation and the Chhidru Formation and the conodont zones around the Permian/Triassic boundary in southern Tibet.

我国西藏南部色龙群及相当地层含有与巴基斯坦盐岭地区Kalabagh段和Chhidru组可对比的乐平世腕足动物群以及二叠系—三叠系界线附近连续的牙形类化石带，由此可以推定色龙群的时代应为乐平世。

Abundant Late Paleozoic brachiopod fossils are contained in the Qiligou section of the Western Mountains, Taiyuan, Shanxi, and 13 benthic communities have been recognized.

太原西山七里沟晚古生代剖面含有丰富的腕足动物化石，共可识别出13个底栖生物群落。

Based on the analyse of the form, structure and their provincilism of the coral, brachiopod and conodont at the Deriangma-Xiala section, the biota through the Early Carboniferous to the middle Permian displayed a series of the Warm fauna-mixed fauna-Cool fauna-mixed fauna-Warm fauna.

通过对申扎地区德日昂玛一下拉剖面的珊瑚、腕足类和牙形石类在形态、结构和古生物地理区系的分析，总结出早石炭世一中二叠世生物群性质暖一冷暖混生一冷一冷暖混生一暖的变化规律，通过对沉积特征、沉积相的分析得出了相同的规律。

Different secondary layers of fossil brachiopod shells have different preservation and the way by which the shells' primary isotope ratios be influenced by diagenesis: postdepositional alternation of δ〓O、δ〓C has no effect on the low-Mg calcite minerals of the shells, while it alters the whole shell's isotopic compositions by microcrack fillings, even with the well preserved shells.

1成岩后生作用对腕足化石壳体不同结构单元的改造方式及改造程度不同：成岩后生作用对保存较好的腕足化石壳体的改造是以微裂隙充填方式进行，而对低镁方解石本身并没有影响。

Analysis of the morphological feature, diversity and abundance of graptolite, brachiopod and radiolariaindicated that the sea-level in the Yangtze basin underwent the change from rising to falling, then to risingagain during the latest Ordovician to the earliest Silurian interval, and the maxium rising episode appeared inthe lower Tangyagraptus typicus Subzone and the maxium falling at the top of the Guanyinqiao bed.

笔石、腕足类、放射虫的形态、分异度和丰度的研究表明：扬子海盆晚奥陶世晚期至志留纪初期，总体上，海平面经历了上升→下降→上升的变化，海平面上升的最大阶段发生在Tangyagraptus typicus亚带下部，到观音桥层顶部，海平面下降到最低点。

In the light of the paleoenvironmental significance reflected by the radiolaria, graptolite, brachiopod,sponge spicule and the rock character, its suggested that the greyish green mudstone at the basal WufengFormation of the Goujiaya section would be probably deposited in 60 to 100 meters deep water, theGuanyinqiao bed in 50 to 80 meters deep, and the radiolaria-bearing silicalite from Wufeng Formation inwater with 200 to 400 meters deep. Combining the above-mentioned water depth with the sea-level changecycles, the change range of every one of the 5 cycles could be further conjectured. They were in ascendingorder: 20～120 m, 80～130 m, about 150 m, 50～250 m, and in excess of 200 m.

根据放射虫、笔石、腕足类、海绵骨针以及岩性等对古环境的指示意义，认为五峰组底部灰绿色泥岩段产出时水深约60-100m，观音桥层水深约50-80m，在晚奥陶世最大海侵期(对应于T.typicus亚带下部)，水深约400m，五峰组含放射虫硅质岩沉积时最小水深约200m，结合以上海平面变化的5次旋回，从而推算出各旋回海平面的变化幅度：在第①旋回，海平面变化范围大致为20～120m；在第②、第③和第④旋回中，海平面变化分别为80～130 m、大约150 m和50～250m；第⑤旋回的海平面升降幅度大于200 m。

Analysis of the morphological feature, diversity and abundance of graptolite, brachiopod and radiolaria indicated that the sea-level in the Yangtze basin underwent the change from rising to falling, then to rising again during the latest Ordovician to the earliest Silurian interval, and the maxium rising episode eppeared in the lower Tangyagraptus typicus Subzone and the maxium falling at the top of the Guanyinqiao bed.

笔石、腕足类、放射虫的形态、分异度和丰度的研究表明：扬子海盆晚奥陶世晚期至志留纪初期，总体上，海平面经历了上升→下降→上升的变化，海平面上升的最大阶段发生在Tangyagraptus typicus亚带下部，到观音桥层顶部，海平面下降到最低点。

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。