查询词典 carboniferous

A new point about the mechanism of the large-scale extension in Late Carboniferous - Early Permian in study area is presented that this large-scale extension is caused by the intrusion of asthenosphere mantle.

7对区内晚石炭世—早二叠世发生的大规模弥散性伸展作用的机制提出了新解释，认为是大规模的软流圈地幔上侵结果

Here have formed in about 14 million years ago to 3 million years between the Mesoproterozoic Jixian System Yunmeng Mountain Group - Upper Carboniferous Taiyuan Formation, exposed systems and complete; has Archaean - Early Mesoproterozoic basement, but also has the typical structure of relics, such as the basement Archaean gneissic complex structure, Early Mesoproterozoic supracrustal rocks at the end of secluded fornix structure, super-nappe cover, ductile shear zone tectonics, ductile - brittle deformation structure of brittle fault cleft construction, single-sided Hill Construction, as well as the cap structure of the collapse, landslides and other structure.

这里有形成于距今约14亿年～3亿年间的中元古界蓟县系云梦山组—上石炭统太原组地层，出露系统而完整；有太古界—早元古界基底，还有典型的构造遗迹，诸如基底太古界片麻杂岩构造，早元古界表壳岩的底僻穹窿构造，盖层的超覆构造，韧性剪切带构造，韧-脆性变形构造，脆性断裂构造，单面山构造，以及盖层中的垮塌构造，滑坡构造等。

Phylogenetic analysis suggests that the batrachian divergence occurred in the Middle Permian, rather than the late Carboniferous as recently estimated using molecular clocks18, 22, but the divergence with caecilians corresponds to the deep split between temnospondyls and lepospondyls, which is congruent with the molecular estimates.

谱系分析认为蛙形两栖类的分歧应发生于二叠纪中期，而不是石炭纪末。然而，与离片椎类和壳椎类这一意义深远的分歧密切相关的事件——蛙形两栖类与无足目的分歧的时间却与分子钟所估计的相符。

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。

Has long been engaged in brachiopod fossils and Carboniferous, Permian stratigraphy.

长期从事腕足动物化石和石炭纪、二叠纪地层研究。

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。

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。

The Carboniferous is a key period of the Phanerozoic reef evolution. There are mainly six common types of the Carboniferous organic reefs:(1) phylloid algal mounds,(2) stromatolic mounds,(3) coral reefs,(4) Waulsortian mud-mounds,(5) Chaetetes mounds,(6) microbial-algal mounds.

石炭纪是生物礁地史演化过程中一个非常关键的时期，发育的生物礁类型有：叶状藻礁丘；(2)叠层石礁丘；(3)珊瑚礁；(4)Waulsortian灰泥丘；(5)Chaetetes礁丘；(6)钙质微生物－藻礁丘。

The major deposits in the Sanzhou ore field are related to Yanshanian or later tectonic activity,which is divisible into six sequences represented by:1the Upper Triassic-Lower Jurassic low-angle normal slip fault and associated structures near or immediately occurring on the unconformity between the Lower Carboniferous and the Upper Triassic;2the longitudinally bucking fold in Devonian-Carboniferous and Upper Triassic-Lower Jurassic strata;3the earlier phase thrusts toward northwest;4the transcurrent fault toward northeast;5the later phase thrusts toward northwest;and 6the extensional normal slip minor faults.

彭少梅 ，杨坤光，姚淑梅三洲矿田内主要矿床与燕山期或更晚的构造活动有关。燕山期构造活动可分为六个序列：1下石炭统与上三叠统不整合面附近和不整合面之上的上三叠统―下侏罗统中的低角度正滑断层及伴生构造，2泥盆系―石炭系及上三叠统―下侏罗统中的纵弯褶皱，3北西向逆冲断层，4北东向平移断层，5第二次北西向逆冲断层，6伸展性正滑小断层。

Based on tectonic evolution and magmatic activity of the Junggar basin and its surroundings,it is recognized that the ocean-continent transformation occurred at the end of the Early Carboniferous,and that a rifted trough of Middle-Late Carboniferous developed because of post-orogenic extensional collapse;(2)the prototypes of Permian-Early Pleistocene basins...

尽管油气地质勘探工作已达50多年，积累了丰富资料，但对于盆地原型和构造演化的看法仍然存在很大的分歧。分歧点主要是：(1)中、晚石炭世盆地的性质，究竟是属于残留海、海相前陆盆地还是属于伸展裂陷槽？(2)二叠纪至古近纪盆地

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。