Baikal是什么意思,Baikal中文翻譯,Baikal發(fā)音、用法及例句
?Baikal
Baikal發(fā)音
英:[ba??k?:l, -?k?l] 美:[ba??k?l, -?kɑl]
英: 美:
Baikal中文意思翻譯
=Baykal.
n. 貝加爾湖
Baikal常見(jiàn)例句
1 、We walked up the river valley, then climbed the mountains to look at the extraordinary forest that surrounds Lake Baikal.───我們沿著(zhù)河谷自上走去,然后登山觀(guān)賞貝加爾湖周?chē)匀说纳帧?/p>
2 、STATISTIC ANALYSIS OF SIMILARITIES BETWEEN FENWEI AND BAIKAL RIFT SYSTEMS───汾渭與貝加爾裂谷系相似性的統計分析
3 、The regions of from polar to Greenland, from Southwest Europe to Etesian, from Baikal lake to the Japanese Sea and the Southeastern of North America are the major occurring areas of 500 hPa circulation anomaly over Northern Hemisphere.───極地到格陵蘭島附近、西南歐洲到地中海地區、貝加爾湖到日本海以及北美洲東南部地區是500 hPa高度場(chǎng)上環(huán)流異常的主要發(fā)生地區;
4 、There were also some seis- mic activities on the eastern part of the Eurasian belt and strong earthquakes also occurred in the east of Baikal Lake region.───亞歐帶東段繼續有地震活動(dòng),貝加爾湖以東地區發(fā)生強震。
5 、The action, and there's plenty of it, ranges from Siberia's Lake Baikal and the wilds of Mongolia to the Hawaiian islands.───從西伯利亞的貝加爾湖, 蒙古的荒野, 再到夏威夷海島, 書(shū)中展示了豐富的場(chǎng)景。
6 、Some Characteristics of Spring Wheat Cultivation in the Back Lake Baikal───后貝加爾湖春小麥栽培的某些特點(diǎn)
7 、Baikal betony herb───水蘇
8 、The cold wind from Lake Baikal is blowing hard .───258從貝加爾湖吹來(lái)的冷風(fēng)在呼嘯。
9 、A Study on Carved Jade Musk Related to the "One Eye State"--and Discussion of the Relationship between the Shimao Jade Articles and Jade Resource of Surrounding Areas of Lake Baikal───"一目國"玉人面考--兼論石峁玉器與貝加爾湖周邊玉資源的關(guān)系
10 、The findings could foreshadow the vulnerability of smaller lakes to global warming because Baikal's great volume of water had been thought to protect it from rising temperatures, the paper said.───報告指出,此研究可能更突顯出較小湖泊受全球暖化影響之深遠,因為過(guò)去咸信,貝加爾湖中大量的湖水,應該能避免使該湖泊水溫上升。
11 、He continues his low-carbon odyssey with a slow train around vast Lake Baikal, one of the many unexpected delights of Siberia.───他乘坐慢車(chē)環(huán)繞浩淼的貝加爾湖,繼續他的低碳旅程,這是西伯利亞所帶來(lái)的眾多驚喜之一。
12 、Identification methods research on White Peony root and Baikal Skullcap Root in NuangongYunzi Pill by TLC───暖宮孕子丸中白芍、黃芩薄層鑒別方法的研究
13 、Baikal Wood Commodity Exchange Introduce───企業(yè)介紹:貝加爾木材交易所
14 、16. Commercial fishermen catch three main types of fish in Lake Baikal.───在貝加爾湖,商業(yè)捕魚(yú)人員主要捕獲三種類(lèi)型的魚(yú)。
15 、Determination on baikal skullcap root in Shuanghuanglian Fluid by HPLC───HPLC法測定雙黃連口服液中黃芩苷的含量
16 、Luansheng, breeding in Lake Baikal, north.───卵生,繁殖于俄羅斯貝加爾湖以北。
17 、On the map, Lake Baikal appears as a striking feature, an enormous lake in the middle of Asia.───在地圖上貝加爾湖引人注目,它是位于亞洲中央的一個(gè)巨大湖泊。
18 、A river of southeast Siberian U.S.S.R. flowing about ,850 km (,50 mi) north and west from Lake Baikal to the Yenisei River.───安加拉河:蘇聯(lián)西伯利亞?wèn)|南部一河流,從貝加爾湖向北向西流經(jīng)約,850公里(,50英里)注入葉尼塞河
19 、In this paper, by the statistical analysis of the path, source and moving velocity-of the cold air, blocking high on the north of Baikal and Yakutsk was shown to be the main system of influence.───本文從統計低溫多雨的冷空氣路徑、源地和移速入手,找出主要影響系統為貝加爾湖北部及雅庫茨克的阻塞高壓。
20 、Effects of glucosamine chondroitin and baikal skullcap root on adjuvant arthritis rats' serum PGE2───Glucosamine Chondroitin與黃芩聯(lián)合對佐劑性關(guān)節炎大鼠血清PGE2影響的實(shí)驗研究
21 、Baikal Teal───n. 花臉鴨
22 、Baikal seal───n. 貝加爾海豹, 貝加爾海豹(海豹科)
23 、A river of eastern Siberian U.S.S.R. rising near Lake Baikal and flowing about4, 296 km(2, 670 mi) northeast and north to the Laptev Sea. Its delta is some402 km(250 mi) wide.───勒拿河前蘇聯(lián)西伯利亞?wèn)|部的一條河流,發(fā)源于貝加爾湖附近,向東北和北部流入拉普捷夫海,流程約4,296公里(2,670英里)。其三角洲寬約402公里(250英里)
24 、At dusk the train deposited many passengers at Irkutsk, from where they could explore Lake Baikal or take trains into Mongolia and China.───日暮時(shí)分,列車(chē)在伊爾庫茨克上了許多旅客,在這個(gè)地方可以出發(fā)去貝加爾湖探險,也可以轉車(chē)前往蒙古和中國。
25 、Frontopsylla frontalis baikal───n. 前額蚤貝湖亞種
26 、A river of eastern Siberian U.S.S.R. rising near Lake Baikal and flowing about4, 296 km(2, 670 mi) northeast and north to the Laptev Sea.Its delta is some402 km(250 mi) wide.───勒拿河前蘇聯(lián)西伯利亞?wèn)|部的一條河流,發(fā)源于貝加爾湖附近,向東北和北部流入拉普捷夫海,流程約4,296公里(2,670英里)。
27 、Winter, ice seals in the open hole in the bite to breathe, as the seals are generally live in seawater, it was once believed to Lake Baikal by an underground tunnel connected with the Atlantic Ocean.───冬季時(shí),海豹在冰中咬開(kāi)洞口來(lái)呼吸,由于海豹一般是生活在海水中的,人們曾認為貝加爾湖由一條地下隧道與大西洋相連。
28 、On middle layer(500 hPa),the meridional movement of westly belt in high-middle latitudes strengrhen(weakened),there are +-+wave train distributions from the high latitude region to the north of Baikal to the height field near Japan.───多(少)雨年,中層500 hPa中高緯西風(fēng)帶經(jīng)向運動(dòng)加強(減弱),從貝加爾湖以北的高緯地區到日本附近的高度場(chǎng)呈+-+(-+-)的波列分布。
29 、Svyatoy Point in Russia's Lake Baikal.───圣點(diǎn)在俄羅斯的貝加爾湖。
30 、Lake Baikal in Asia was once the cleanest in the world, with over 700 different kinds of plant and animal life.───亞洲的貝加爾湖曾經(jīng)是世界上最清潔的湖,湖里有700多種不同的植物和動(dòng)物。
31 、S.S.R. rising near Lake Baikal and flowing about4, 296 km(2, 670 mi) northeast and north to the Laptev Sea.───勒拿河前蘇聯(lián)西伯利亞?wèn)|部的一條河流,發(fā)源于貝加爾 湖 附近,向東北和北部流入拉普捷夫海,流程約4,296公里(2,670英里)。
32 、Contrast the same era of the Qing Dynasty and Czarist Russia in the post-war忙把Jaxa abuse柏海Lake (now Lake Baikal) was ceded to Russia’s history, this truth more obvious.───對比同一時(shí)代滿(mǎn)清與沙俄在雅克薩交戰后忙把柏海兒湖(今貝加爾湖)割讓給沙俄的歷史,這一道理更加顯而易見(jiàn)了。
33 、METHODS Examine the White Peony Root and Baikal Skullcap Root materials by new TLC methods that had a big improvement compared to the proposed standard.───方法本文采用與國家試行標準不同薄層色譜法比較兩法的優(yōu)劣。
34 、The Arctic oscillation was close related with the frequency of blocking high over the Baikal Lake area and the intensity of East Asian summer monsoon and summer precipitation over North China.───在年代際尺度上,北極濤動(dòng)與貝加爾湖地區阻塞高壓發(fā)生頻率、東亞夏季風(fēng)強度和華北夏季降水的關(guān)系較為密切。
35 、Eurasia: all of Europe, including the British Isles. Arctic Ocean drainage, Ob and Yenisei basins, and rarely in Lake Baikal (Ref. 1998).───歐亞大陸:所有歐洲,包括不列顛群島。北極海流域,鄂比河與葉尼塞河流域,而且極少在貝加爾湖.(參考文獻1998
36 、In the summer of 2001, the 500hPa geopotential height anomaly was positive in the Eurasia, and the positive center was over Lake Baikal.───歐亞地區夏季50 0hPa位勢高度距平場(chǎng)上中高緯從西到東呈現為“ - +-”分布形式 ,貝加爾湖地區為正距平中心 ;
37 、In Russia, it is Lake Baikal.───在俄羅斯,是貝加爾湖。
38 、Putin joined the team of scientists studying gas hydrates and natural seepage of crude oil on the bottom of Baikal on Saturday.───在周六與普京隨行的是一隊科學(xué)家,他們負責研究天然氣水合物,以及貝加爾湖湖底原油的自然滲漏問(wèn)題。
39 、Lake Baikal in Asia was once the cleanest in the world,───在亞洲,貝加爾湖一度是世界上最清潔的湖
40 、QUALITY EVALUATION OF CHINESE BAIKAL SKULLCAP───中藥黃芩類(lèi)的品質(zhì)評價(jià)及資源利用
41 、We walked up the river vally, then climbed the mountains to look at the extraordinary forest that surrounds Lake Baikal.───我們沿著(zhù)河谷自上走去,然后登山觀(guān)賞貝加爾湖周?chē)匀说纳帧?/p>
42 、After a lovely stretch running right along the edge of Lake Baikal we moved away from birch and pine tree territory into lusher pastures.───在沿著(zhù)貝加爾湖的一段美妙行程之后,我們離開(kāi)了樺樹(shù)和松樹(shù)的地域,進(jìn)入了令人迷醉的大草原。
43 、Thus we visit the deepest lake on the planet, Lake Baikal in Siberia.───如此我們叁觀(guān)在行星上的最深湖在西伯利亞的湖貝加爾湖。
44 、Lake Baikal is something of a miracle to the Russians.───對俄國人來(lái)說(shuō),貝加爾湖頗有些神秘的氣氛。
45 、At around 7:15 AM, Tungus natives and Russian settlers in the hills northwest of Lake Baikal observed a huge fireball moving across the sky, nearly as bright as the Sun.───喺當日上午7點(diǎn)15分左右,通古斯當地人同俄國嘅移民喺貝加爾湖小山西北部睇到一個(gè)巨形火球飛疾橫跨天空,幾乎好似個(gè)日頭咁光猛。
46 、We form 11 Delaunay triangles using the coordinates of GPS stations in Baikal Lake region in the light of side length being equal as far as possible for each triangle.───利用貝加爾湖地區GPS監測網(wǎng)測站坐標,根據邊長(cháng)盡量相等的原則,形成了11個(gè)Delaunay三角形,計算了各三角形的形狀因子,結果表明有9個(gè)三角形的形狀因子大于0.1。
47 、A city of south-central Russia near the southern end of Lake Baikal.───伊爾庫次克俄國中南部城市,靠近貝加爾湖的南端。
48 、Ed Gillespie continues his low-carbon odyssey with a slow train around vast Lake Baikal, one of the many unexpected delights of Siberia.───埃德?吉勒斯皮耶乘坐慢車(chē)環(huán)繞浩淼的貝加爾湖,繼續他的低碳旅程,這是西伯利亞所帶來(lái)的眾多驚喜之一。
49 、Freshwater lakes, most notably Lake Baikal in Russia and the Great Lakes in North America, contain seven-eighths of this fresh surface water.───一種原因是從地下的涌泉中大量的涌出淡水,就形成了特別的在海中有一個(gè)淡水區域的現象。
50 、Research on Petrologic Character of Nephrite Jade From Baikal Lake Region in Russia───俄羅斯貝加爾湖地區軟玉的巖石學(xué)特征研究
51 、Baikal International Center of Ecological Research;───國際貝加爾湖生態(tài)學(xué)研究中心;
52 、Study on effects of anti-anoxia of baikal skullcap root───中藥黃芩抗缺氧作用研究
53 、It is a Baikal Mallard.───它是綠頭鴨。
54 、Furthermore, the main reason of the weather abrupt from fastigium to suspend wa s the low pressure, which lying lake Baikal and North-east China, developed obvi ously and replaced the previous ridge.───另外,分析還發(fā)現,高溫高峰期到緩和期天氣突變的主要原因是貝加爾湖及東北地區低壓明顯發(fā)展,并替代了前期的脊區;
55 、Compared with control group, Glucosamine Chondroitin and Baikal Skullcap Root can inhibit the excretion of PGE2 in Adjuvant Arthritis Rats'Serum( P ───與對照組相比 ,Glu cosamineChondroitin與中藥黃芩聯(lián)用組對佐劑性關(guān)節炎大鼠血清PGE2的分泌具有明顯的抑制作用 (P
56 、We located 12 species of geese and ducks (5 genera) during November and December,the dominant species were Spot-billed Duck (Anas poecilorhyncha),Common Teal (A.crecca),Baikal Teal (A.formosa) and Mallard (A.platyrhynchos).───與歷史記錄相比,雁鴨類(lèi)種類(lèi)明顯減少。 11~12月記錄到雁鴨類(lèi)5屬12種,優(yōu)勢種為斑嘴鴨(Anas poecilorhyncha)、綠翅鴨(A.crecca)、花臉鴨(A.formosa)和綠頭鴨(A.platyrhynchos);
57 、She is working to protect Lake Baikal in Siberia from damage by Russia's growing oil and nuclear industries.───她是工作,以保護貝加爾湖在西伯利亞從損害由俄羅斯日益增長(cháng)的石油和核工業(yè)。
58 、But that population is spread across 12 countries, including some of the most remote regions of the world, from Afghanistan, across the Himalayas, to Lake Baikal in south central Russia.───但是它們分散在12個(gè)國家,包括世界上最偏遠的地區,從阿富汗,穿過(guò)喜馬拉雅山脈,到俄羅斯中南部的貝加爾湖。
59 、Investigation on the teratogenesis from Eucommia Bark, Baikal Skullcap and Ramie root by using Hydra regeneration assay───應用水螅再生試驗初探杜仲等中藥的致畸作用
60 、His artistic talent, which emerged early in his teenage years, helped him to enter an art school in Irkutsk in East Siberia, not far from Lake Baikal.───在少年時(shí)代就顯示出來(lái)的藝術(shù)天賦使他順利地進(jìn)入中等藝術(shù)學(xué)校,來(lái)到離貝加爾湖不遠的東西伯利亞市伊爾庫茨克。
61 、adaptive radiation Speciation of a taxonomic group to fill numerous previously vacant ecological niches,e.g. Cichlidae in the Great Rift Lakes of Africa, Cottidae in Lake Baikal of Russia.───幅射狀適應同源物種快速分化填滿(mǎn)許多先前空白的生態(tài)微棲地,例如慈鯛科魚(yú)類(lèi)在非洲三大湖中的演化樹(shù)。
62 、Baikal betony rhizome───水蘇根
63 、EVOLUTION OF FAULTS IN A CONTINENTAL RIFT: MORPHOTECTONIC EVIDENCE FROM THE SOUTHWESTERN TERMINATION OF THE NORTH BAIKAL BASIN───大陸裂谷中斷層的演化:北貝加爾盆地西南端構造地貌證據
64 、Lake Baikal───n. 貝加爾湖(位于俄羅斯)
65 、They call it the Baikal Sea and sing songs about it.───他們把它叫作貝加爾海。并為之謳歌吟頌。
66 、In the Meiyu season of 2006,the blocking high located to the west of Baikal Lake,the west Pacific subtropical high was more northward than that in the normal year.───2006年的梅雨期在典型梅雨常見(jiàn)的中高緯度烏拉爾山和鄂霍次克海阻塞高壓均未建立,中高緯度高壓位于貝加爾湖以西,低緯度副高位置比氣候平均稍偏北。
67 、Glucosamine Chondroitin and Baikal Skullcap Root can inhibit the excretion of PGE2 in Adjuvant Arthritis Rats'Serum.───GlucosamineChondroitin與中藥黃芩聯(lián)用可明顯抑制佐劑性關(guān)節炎大鼠血清PGE2的分泌。
68 、We studied the morphotectonic framework of the southwestern termination of the North Baikal Basin including the Olkhon Island and its surroundings located in the central part of the Baikal Basin.───北貝加爾盆地西南端位于貝加爾盆地中部,包括Olkhon島及其鄰區,文中研究了這個(gè)區域的構造地貌格架。
69 、Astronauts aboard the International Space Station noticed two mysterious dark circles in the ice of Lake Baikal in April.───國際空間站的宇航員四月在貝加爾湖中的冰層中發(fā)現了兩個(gè)神秘黑圈。
70 、Lake Tanganyika is the second-largest body of fresh water in the world, after Lake Baikal in Russia.───坦噶尼喀湖是世界上第二大的淡水湖,僅次于俄羅斯的貝加爾湖。
71 、A COMPARATIVE STUDY OF HYDROCHEMISTRY ON GEOTHERMAL MINERAL WATERS IN XINZHOU BASIN AND BAIKAL RIFT ZONE───忻州盆地和貝加爾裂谷帶醫療礦水水化學(xué)相似性研究
72 、The later stage (Anthropogene) was marked by collapses, which were responsible for the present structure of the Baikal depression.───晚期(第四紀)為塌陷階段,造成了貝加爾凹陷的現代構造。
73 、They say that Mt.Panaeryu is today's central Siberian plateau and Cheonhae is today's Lake Baikal.───他們說(shuō)的波奈留山就是現在的西伯利亞高原中部,天海就是現在的貝加爾湖。
74 、The major components of CHC include Chinese thorowax root, membranous milkvetch root, and baikal skullcap root, etc.───CHC主要由柴胡、黃芪、黃芩等中藥提取物組成。
75 、3. The cold wind from Lake Baikal is blowing hard.───從貝加爾湖吹來(lái)的冷風(fēng)在呼嘯。
76 、It lived in Eurasia, from Ireland to east of Lake Baikal, during the Late Pleistocene and early Holocene.───它生活在歐亞大陸,從愛(ài)爾蘭到東部的貝加爾湖,在晚更新世與全新世早期。
77 、A river of eastern Siberian U.S.S.R. rising near Lake Baikal and flowing about4,296 km(2,670 mi) northeast and north to the Laptev Sea. Its delta is some402 km(250 mi) wide.───勒拿河,前蘇聯(lián)西伯利亞?wèn)|部的一條河流,發(fā)源于貝加爾湖附近,向東北和北部流入拉普捷夫海,流程約4,296公里(2,670英里)。其三角洲寬約402公里(250英里)。
78 、Significant crustal thinning beneath the Baikal rift zone: New constraints from receiver function analysis───在貝加爾湖裂縫地帶之下有重要意義的外殼變薄:根據接收機函數分析的新抑制
79 、Keywords Nuangong Yunzi Pill;TLC;White Peony Root;Baikal Skullcap Root;───暖宮孕子丸;薄層色譜;白芍;黃芩;
80 、PRESENT-DAY CRUSTAL DEFORMATION REVEALED BY GPS IN BAIKAL LAKE REGION,RUSSIA───GPS揭示的貝加爾湖地區現今地殼形變特征
貝加爾湖的面積是多少,相當于多少個(gè)洞庭湖
貝加爾湖面積3.15萬(wàn)平方千米,洞庭湖面積2820.00平方公里。貝加爾湖面積是洞庭湖的11倍多。
貝加爾湖,名稱(chēng)源于古肅慎語(yǔ)“貝海兒湖”,漢代稱(chēng)為“北?!?,位于俄羅斯東西伯利亞南部,歷史上曾長(cháng)期是中國的固有領(lǐng)土。其是世界上年代最久的湖泊,為世界第七大湖,形狀為新月形,曾是中國古代北方游牧民族主要活動(dòng)地區,漢代蘇武牧羊之地,湖中動(dòng)植物資源豐富。該湖水質(zhì)好,透明度深達40.5米,被譽(yù)為“西伯利亞的明眸”。2015年貝加爾湖水體總容積23.6萬(wàn)億立方米,最深處達1637米,蘊藏著(zhù)地球全部淡水量的約20%,相當于北美洲五大湖水量的總和,超過(guò)整個(gè)波羅的海的水量,是世界上儲水量最大的淡水湖泊。湖畔陽(yáng)光充沛,有300多處溫泉,是俄東部地區最大的療養勝地。1996年被列入世界人類(lèi)文化和自然保護名錄。
清朝前期屬中國,《中俄尼布楚條約》將該湖劃歸沙俄。
中國第二大淡水湖,位于湖南省北部,長(cháng)江荊江河段南岸,是長(cháng)江重要的調蓄湖泊。洞庭湖北納長(cháng)江的松滋、太平、藕池、調弦四口來(lái)水,南和西接湘、資、沅、澧四水,由岳陽(yáng)市城陵磯注入長(cháng)江。
貝加爾湖的面積是多少,相當于多少個(gè)洞庭湖
貝加爾湖面積為3.15萬(wàn)平方千米,相當于12個(gè)洞庭湖。
貝加爾湖(俄語(yǔ):Озеро Байкал,英語(yǔ):Lake Baikal),位于俄羅斯東西伯利亞南部,在布里亞特共和國和伊爾庫茨克州境內,介于北緯51°29′~55°46′,東經(jīng)103°41′~109°57′之間。
湖總容積23.6萬(wàn)億立方米(2015年),最深處達1637米(2015年),是世界第一深湖、歐亞大陸最大的淡水湖。湖長(cháng)636千米,平均寬48千米,面積為3.15萬(wàn)平方千米,由地層斷裂陷落而成,湖面海拔455米,平均水深730米。
庭湖,古稱(chēng)云夢(mèng)、九江和重湖,處于長(cháng)江中游荊江南岸,跨岳陽(yáng)、汨羅、湘陰、望城、益陽(yáng)、沅江、漢壽、常德、津市、安鄉和南縣等縣市。洞庭湖之名,始于春秋、戰國時(shí)期,因湖中洞庭山而得名。 洞庭湖北納長(cháng)江的松滋、太平、藕池、調弦四口來(lái)水,南和西接湘、資、沅、澧四水及汨羅江等小支流,由岳陽(yáng)市城陵磯注入長(cháng)江。
洞庭湖古代曾號稱(chēng)“八百里洞庭”。20世紀90年代末,據水利部門(mén)測算,有面積2579.2平方公里;但它還有湘、資、沅、澧四水和“長(cháng)江四口”1300多平方公里洪道面積。兩者合計,仍有3879.2平方公里。湖盆周長(cháng)為803.2公里,總容積220億立方米,其中天然湖泊容積178億立方米,河道容積42億立方米。
3.15萬(wàn)平方千米=31500平方千米,31500平方千米÷2579.2平方公里=12.2。
擴展資料:
貝加爾湖兩側有1000-2000米的懸崖峭壁,構造罅隙四周?chē)@著(zhù)山脈,周?chē)嘧冑|(zhì)巖,沉積巖和巖漿巖貝加爾湖的湖岸每年以?xún)衫迕椎乃俣认騼蛇吚_(kāi)。貝加爾湖有作為許多海洋的典型特征——深不可測,巨大的庫容、暗流、潮汐、強風(fēng)暴、大浪、不斷變大的裂谷、地磁異常等等。貝加爾洼地是不對稱(chēng)的,西部的坡面比東部更加陡峭。
從地質(zhì)構造上看,貝加爾湖是一個(gè)斷谷的凹部,一個(gè)深入到地下15-20千米深處的大裂口。貝加爾湖和它的匯水區是世界上一個(gè)獨特的地質(zhì)體系。
洞庭湖屬揚子準地臺江南地軸上的斷陷盆地,形成于燕山運動(dòng),延續至喜馬拉雅運動(dòng)。白堊紀為盆地發(fā)展擴大時(shí)期,第四紀以來(lái),洞庭湖拗陷盆地在新構造運動(dòng)作用下,再次全面下沉,接受沉積,成為湖南省第四紀分布最廣、厚度最大、沉積層序最全的地區。存在4次以上凹陷成湖、凸起成陸的演化過(guò)程,相應拗陷盆地解體,形成斷拗盆地。
早更新世早期,在目平湖、澧縣、沅江等凹陷成湖,中期湖侵擴大到漢壽、鼎城、安鄉、湘陰等地,出流由安鄉經(jīng)澧縣凹陷排入長(cháng)江,末期凹陷轉為緩慢上升,湖泊萎縮一部分成陸。早更新世晚期,目平湖與沅江兩凹陷相連,湖盆擴大。
赤山凸起成為兩湖間的孤島,湖水從南縣、鲇市、藕池口排入長(cháng)江,為第四紀湖面最大的興盛時(shí)期。隨著(zhù)湖盆轉為上升為主,湖水退卻,出現洞庭湖平原地貌景觀(guān)。中更新世,洞庭湖盆地發(fā)育為河網(wǎng)交織的湖沼盆地,澧縣、目平湖和沅江至湘陰的沉積體系。
此時(shí),湖水有兩處出口,一處由岳陽(yáng)君山經(jīng)廣興洲入長(cháng)江,另一處由安鄉佘家臺經(jīng)澧縣進(jìn)入江漢盆地。晚更新世,目平湖凹陷和沅江至湘陰凹陷部分地區再次活化沉降,并在赤山西部形成常德、安鄉河湖盆地和東部臨資口、黃茅洲和北大市河湖盆地。
百度百科-貝加爾湖
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