The results showed that extremely cold rain and snow weather of Sichuan Basin was related well to the variations of water vaporxingaiav11.com、 frontogenetic function of Yangtze River Basin. at the mid-lower level of the troposphere, especially at 700 hPa level, there was water vapor convergence exiting lastly in Sichuan Basin for long time. And the time of convergence of water vapor was congruous with of cold air in Sichuan basin, and provided the water vapor conditions for the occurrence of low-temperature disaster.

結(jié)果表明：四川盆地的低溫雨雪天氣與南來的水汽變化及長江流域的鋒生作用有密切關(guān)系美国成年性生活片视频在线观看，在對流層中低層700hPa上欧美特一级性爱免费看，四川盆地長時間存在穩(wěn)定的水汽輻合區(qū)人人操,人人摸97，水汽輻合的時段基本與盆地冷空氣活動時間段一致，這為低溫降水的發(fā)生提供了水汽條件91免费免费国产在线观看。

The study shows that in various continental downfaulted basins in eastern China,the China East Sea basin of the southeast sea region and the continental shelf—Qiongdongnan basin and Zhujiangkou basin—of the northern South China Sea,CO2 in CO2 reservoirs and CO2-rich oil/gas reservoirs is of typical volcanic mantle-derived type and that its migration and concentration is mainly controlled by mantle-derived volcanism and gas-conducting distribution of deep basement faults connected with the gas source at depth. CO2 is mainly sourced from substantial amount of CO2 associated with mantle-derived volcanism at the deep level of the crust. CO2 in the CO2 reservoirs and CO2-rich oil/gas reservoirs in the Yinggehai basin on the continental shelf of the northern South China Sea is of crust origin and crust-mantle mixing origin and mainly controlled by local,layer-by-layer and zone-by-zone,multiple intrusion of late hydrothermal fluids in mud diapir areas and physico-chemical processes of very thick Pliocene-Miocene marine calcareous sandstone and mudstone.

研究表明一级精品视频在线观看，中國東部陸上諸斷陷盆地與東南沿海海域的東海盆地及南海北部大陸架瓊東南盆地和珠江口盆地CO2氣藏及高含CO2油氣藏中，CO2均屬典型的火山幔源型成因免费看涩涩的网站h，其運聚富集主要受控于幔源型火山活動與溝通深部氣源的基底深大斷裂的導(dǎo)氣配置作用国产youjizz，CO2氣源主要來自地殼深部幔源火山活動伴生的大量CO2；南海北部大陸架西區(qū)鶯歌海盆地CO2氣藏及含CO2油氣藏中的CO2乱伦日韩一区二区，屬于殼源型及殼岷谌艘患禷毛片免费视频观看；旌闲统梢颍饕芸赜谀嗟妆贌崃黧w晚期分層分塊多期的局部上侵活動與沉積巨厚海相含鈣砂泥巖的物理化學(xué)作用爱搞.com，其運聚分布具多期和分層分區(qū)的特點www.18黄色视频在线观看。

This theory is demonstrated by three examples: the natural gas blowout when drilling in the permafrost, the hydrate cropouts in the seafloor and the gas bubbles in abyssal plumes. Then, several conclusions are drawn: there maybe exist the seeping and diffusing types of gas hydrate reservoirs which may still be growing in the Xisha trough, Dongsha continental slope of the South China Sea, west and south of Taiwan basin, and Bijianan basin; whereas in the Qiangtang basin of the Qinghai\|Tibet plateau may exist the regressive\|type gas hydrate deposit. Furthermore, the phenomenon of hydrocarbon gas leaking in the Qilian mountain areas and Junger basin indicates that these areas may ensconce gas hydrate reservoirs.

指出天然氣水合物賦存狀態(tài)主要有3種類型，即成長型日本深入视频网址、成熟型和消退型亚洲一区色图小说，認為我國南海北部陸坡區(qū)的西沙海槽、東沙群島東南坡中文字幕大在线、臺西南盆地欧美性爱日逼、筆架南盆地等區(qū)域有可能存在著仍處于發(fā)育階段的滲透型或擴散型水合物層，而青藏高原羌塘盆地則是屬于消退型水合物国产720刺激在线视频，祁連山地區(qū)http//www.色.com日本、準(zhǔn)噶爾盆地等的烴類氣體泄漏表明在我國西北和東北的凍土帶也可能存在著含氣水合物層。

Combining the discusses of flysch prototype basin which is called Baryan Har basin, we know that the Baryan Har basin is a large-scale back-arc basin resulted from intensively depression of back-arc area. It formed after tectonic setting transforms to pressure from extension and is at the same time as development of Yidun island arc.

同時天堂官方无码wwwwww，結(jié)合對沉積復(fù)理石的原型盆地——巴顏喀拉海盆性質(zhì)的討論直接黄色视频，以為巴顏喀拉海盆是在松潘-阿壩地區(qū)構(gòu)造背景由拉張轉(zhuǎn)化為積存之后，在義敦島弧發(fā)育的同時狼友色成人网在线播放视频网站免费，弧后區(qū)強烈坳陷形成的大型弧后盆地不卡一级片。

1:250000 geological mapping has further revealed the mysteries of the tectonics of the Qinghai-Tibet Plateau. The Altun Mountains are not of the Tarim massif, but a part of the Kunlun-Qilian-Qinling orogenic system; the Altun fault is a large transform fault; the Muztag-Maqên suture zone and Jinshajiang suture zone are both Variscan ones; the Songpan-Garzê area in the Triassic was a huge turbidite basin on the southern margin of Laurasia; the Gangdise belt underwent the important Indosinian orogenic movement; an ocean basin that persisted from the Paleozoic to Triassic did not exist, i.e. the so-called Paleo-Tethys or permanent Tethys was not in existence in the Qinghai-Tibet Plateau. In the Paleozoic, most parts of China, including the Sino-Korean, Yangtze and Tarim massifs and the Qinghai-Tibet Plateau, were located in south of the main ocean basin—the Central Asian-Mongolian sea way—of the Paleo-Asia ocean, belonging to the northern margin of Gondwana. The Yarlung Zangbo and Bangong -Nujiang belts were twins in the Tethyan Ocean, which began to develop into two ocean rift belts in the Triassic. The Tethyan Ocean with the Yarlung Zangbo belt as the main ocean basin belt began to be subducted in the Late Triassic and experienced a process of pulsatory plate convergence orogeny including the Indosinian, Yanshanian and Himalayan stages.

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The tectonic evolution of southern Junggar basin can be classified into seven stages: stage of intracontinental rift from middle Periman to late Late Carboniferous; stage of weak extension and peneplane from late Permian to early Triassic; stable depression stage in middle-late Triassic; maximal basin formation phase in the setting of weak extension in early-middle Jurassic; inactive depressed basin formation phase in thrust setting in middle-late Jurassic; stable depression stage in Cretaceous and Eogene; foreland depressed basin formation phase in thrust setting in Neocene and Quaternary.

準(zhǔn)噶爾盆地南緣晚石炭世以來盆地構(gòu)造演化可劃分為七個演化階段：晚石炭世—中二疊世陸內(nèi)裂谷作用階段天天操操操；晚二疊世到早三疊世處于弱伸展-穩(wěn)定坳陷作用階段；中深夜免费人妻一区91麻豆、晚三疊世準(zhǔn)平原化作用階段人妻少妇视频一区中文字幕；早、中侏羅世為弱伸展背景下廣盆形成階段天天操天天日天天操；中在线观看中文字幕2022、晚侏羅世沖斷背景下的坳陷盆地形成階段；白堊紀(jì)到古近紀(jì)弱伸展背景下的穩(wěn)定坳陷盆地形成階段一级二级三级黄色网站；新近紀(jì)—第四紀(jì)為沖斷背景下的前陸坳陷盆地形成階段欧美天天搞网站。

The results indicated that the water resources renewability in the Yellow River Basin was in middle level or below, and the whole basin's water resources renewability was very bad. Water resources social renewability of Presidial Cities in the Yellow River basin was in general level, and the others were worse than Presidial Cities, so the main cities' water resources social renewability in the Yellow River Basin was not good generally.

結(jié)果表明，黃河流域各區(qū)域可再生性能力基本上為中等或以下中国一级A一级a爱片免费免免，整個黃河流域水資源可再生性能力較弱ww黄色；15個主要城市中，省會城市水資源社會可再生性水平一般免费在线黄色网站视频，其余城市屬于較弱水平大BBBB高潮，總體上，黃河流域城市水資源社會可再生性能力普遍較弱97超碰在线频。

During early middle Jurassic period, Quemocuo formation in NQB was offshore lake deposition with marine feature, in SQB was shelf deposition, which indicted that an intense rifting and sea level rising with more large range, and consequently, eroding area was shrunk and deposition area was expanded.4. According to the result of stratigraphic surface features, division and correlation, and the paleographic characteristic, Qiangtang Basin during late Triassic -early middle Jurassic period could be divided into two basin developing stages with difficult tectonic nature, remnent epicontinental basin stage in Carian -early Norian of late Triassic and rifting basin stage in middle Norian of late Triassic - early middle Jurassic period respectively.

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Turpan-Hami basin is a typical multicycle and multiplex basin, it has both the character of depression basin and that of rifted basin.

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