The age of individual analysis for zircon from the diorite unit ranges from (137±2) Ma to (1 58 士2) Ma, with a weighted average of (147.7±2.0) Ma, whereas that of the monzonitic porphyry ranges from (115±2) Ma to (164±3) Ma, with a weighted average of (144.5±8.9) Ma.

其中的閃長(zhǎng)巖單元年齡為(137±2)~(158±2)Ma日韩成人播放无码AV，加權(quán)平均年齡為(147.7±2.0)Ma，二長(zhǎng)花崗斑巖為(115±2)~(164±3)Ma，加權(quán)平均為(144.5±8.9)Ma。

Seven molybdenite samples from greisen ore body and quartz vein tungsten ore body associated with black tungsten ore were chosen for Re-Os isotopic dating and model age of (141.4±2.2) Ma~(158.2±2.2) Ma were obtained. The isochrone age of molybdenites from greisen type tungsten-tin ore body is (156.8±3.9) Ma, which indicates that its mineralogenetic epoch is at the Middle Jurassic, corresponds to the second stage of early Yanshanian period. And the model age for the samples from greisen ore body and from quartz vein ore body are (150.7±2.4) Ma~(158.2±2.2) Ma and (141.4±2.2) Ma~(151.0±2.4) Ma respectively, which indicates that the mineralization time of the quartz vein ore body is slightly earlier than that of greisen ore body.

文章選取云英巖型礦體及上部石英脈型鎢礦體中與黑鎢礦共生的輝鉬礦7件激情国产在线观看美女图片大全，進(jìn)行Re-Os等時(shí)線(xiàn)年齡測(cè)定，得到其模式年齡為(141.4±2.2) Ma~(158.2±2.2)Ma人人澡人人澡人人看欧美，其中云英型鎢錫礦體中輝鉬礦等時(shí)線(xiàn)年齡為(156.8±3.9)Maswag在线看，成礦時(shí)代為中侏羅世，對(duì)應(yīng)于燕山早期第二階段欧美性爱www；從云英巖礦體中樣品模式年齡為(150.7±2.4)Ma~(158.2±2.2)Ma黄片儿在线观看，石英脈型礦體中樣品模式年齡為(141.4±2.2)Ma~(151.0±2.4)Ma。

Block milliampere when be being set in 100 ma of large central issue, 200 ma, 300 ma, 400 ma, 500 ma respectively, wait to all appear identical breakdown.

將毫安擋位分別設(shè)在大焦點(diǎn)100 ma视频一视频二无码在线有限公司、200 ma在线视频一区二区色动夜密、300 ma、400 ma欧美浓毛大泬视频在线观看、500 ma時(shí)等均出現(xiàn)相同故障欧美性猛交XXXXX按摩欧美。

Using CHIME geochronological method, the zircons and monazites from the Caoshan and Lishugou plutons are dated. The PbO-UO2* isochron age and weighted average age of the Lishugou pluton are all (173±10) Ma. For the Caoshan pluton, the zircon PbO-UO2* and monazite PbO-ThO2* isochron ages are (178±8) Ma and (177±3) Ma, and their weighted average ages are (175±6) and (177±3) Ma, respectively.

運(yùn)用CHIME年齡測(cè)定方法對(duì)草山和梨樹(shù)溝巖體中的鋯石和獨(dú)居石進(jìn)行了年代學(xué)研究，獲得梨樹(shù)溝巖體鋯石PbO-UO2*等時(shí)線(xiàn)年齡和權(quán)重平均年齡均為(173±10)Ma黄网在线，草山巖體鋯石PbO-UO2*和獨(dú)居石PbO-ThO2*等時(shí)線(xiàn)年齡分別為(178±8)Ma和(177±3)Ma，權(quán)重平均年齡分別為(175±6)Ma和(177±3)Ma黄色网站老女人。

Apart from the amphibolite enclaves and dyke swarms, the isotopic ages of the magmatic intrusions have been measured. The magmatic sequence and geochronologic framework are as follows: Quartz monzonite, 1825 ± 23 Ma, TDM = 2920Ma; Throndhjemite, 2374 ± 10 Ma, TDM = 3460 Ma; Tonalite, 2604±102 Ma, TDM = 3063 Ma; Monzonite, 3096±17 Ma, TDM = 2978 Ma; Granite, 3605±43 Ma, TDM = 3528 Ma.

在野外建立熱事件相對(duì)序列的基礎(chǔ)上小视频免费在线观看黄色，通過(guò)單顆粒鋯石U-Pb法測(cè)年和Sm-Nd同位素示蹤研究，初步建立了該區(qū)早前寒武紀(jì)巖漿活動(dòng)的年代格架：石英二長(zhǎng)巖：1825±23 Ma91欧美在线视频，TDM=2920 Ma无码精品视频在线观看；奧長(zhǎng)花崗巖：2374±10 Ma，TDM=3460 Ma两个小姨子木瓜电影网；英云閃長(zhǎng)巖：2604±102 Ma日本中文字幕的视频网站，TDM=3063 Ma；二長(zhǎng)花崗巖：3096±17 Ma国产欧美日韩在线综合网，TDM=2978 Ma日本AⅤ永久免费网站WWW；花崗巖：3605±43 Ma，TDM=3528 Ma久久精品视频99。

The plateau ages of three phlogopite samples from the Bailashui ore district are (150.6±1.0) Ma,(157.3±1.0) Ma and (154.7±1.1) Ma, respectively; and the plateau age of hydrothermal hornblende from the same mining district is (156.9±1.1) Ma.

研究結(jié)果表明亚洲国产人自精在线尤物，白臘水礦區(qū)3個(gè)金云母樣品的40Ar/39Ar坪年齡分別為（150.6±1.0）Ma、（157.3±1.0）Ma和（154.7±1.1）Ma免费A级毛片全免费还看；熱液成因角閃石的坪年齡為（156.9±11）Ma日本特黄aaaaaa片在线观看。

The research leads to following conclusions: A The age of the ferromanganese contacting with the upper phosphate layer is 14.9 Ma; B The crust had been grown continually without sedimentation interruption since 14.9 Ma, suggesting that it can be used to rebuild the environment of palaeo-ocean and palaeo-climate from 14.9 Ma to 0 Ma; C The sedimentation interruption between the ferromanganese and the upper phosphate layer lasted around 4 Ma; D Between 19 Ma and 22.7 Ma, great phosphatization event happened in this area, which might cause the sedimentation interruption from 22.7 Ma to 14.9 Ma; E The ferromanganese crust began to grow from 75 Ma.

對(duì)超微量Sr同位素測(cè)試得到的富鈷結(jié)殼磷酸鹽年齡進(jìn)行分析認(rèn)為：(1)上部富鈷結(jié)殼與上層白色磷酸鹽化層接觸部位的年齡為14.9 Ma国内精品久久一级；(2)自14.9 Ma以來(lái)，結(jié)殼的生長(zhǎng)是連續(xù)的中文在线美女A片，沉積間斷發(fā)生的可能性非常小国产亚洲精品美女古装AV，該樣品可以用來(lái)進(jìn)行14.9 Ma年以來(lái)古海洋、全球變化的重建工作一级黄色91在线视频；(3)上層白色磷酸鹽化層與其上部的富鈷結(jié)殼之間存在4 Ma的沉積間斷本溪国产黄色视频aa；(4)19 Ma~22.7 Ma左右在該區(qū)發(fā)生過(guò)大規(guī)模的磷酸鹽化作用，磷酸鹽化作用可能造成磷酸鹽化時(shí)期(19 Ma~22.7 Ma)和之后4 Ma(19 Ma~14.9 Ma)富鈷結(jié)殼的沉積間斷新国模吧；(5)結(jié)殼的初始生長(zhǎng)年齡在75 Ma左右黄色AⅤ无码视频；(6)老結(jié)殼的生長(zhǎng)速度要遠(yuǎn)低于新結(jié)殼的生長(zhǎng)速度。

Using the latest paleontological, magnetostratigraphic and chronological data and the lasting time of the high-resolution sequences, the authors have made a detailed chronostratigraphic division of the Jixi Group and determined the Jixi Group formed in the Early Cretaceous early Valaginian to middle Albian. In the group, the Didao Formation formed at 130.9±128.3 Ma, the Chengzihe Formation at 125.1±116 Ma, the Muling Formation at 116±106.9 Ma, and the Dongshan Formation at 106.9±101.7 Ma.

提要：利用最新的古生物欧美特黄在线视频、磁性地層年代資料及高分辨率層序延續(xù)時(shí)間推算1024亚洲免费视频，對(duì)雞西群進(jìn)行了精細(xì)的年代地層劃分，確定了雞西群形成時(shí)間為早白堊世凡蘭吟早期—阿爾布中期天天碰天天日男人天堂，其中滴道組形成時(shí)間為130.9～128.3 Maaaaaeee，城子河組形成時(shí)間為125.1～116 Ma，穆棱組形成時(shí)間為116～106.9 Ma性爱大黑吊网，東山組形成時(shí)間為106.9～101.7 Ma99久久蜜v视频。

Two episodes of uplifting in Jianghan basin occurred within 157～97Ma and 10~0 Ma; Xiang′exi-Wuling region and Qianzhong hights experienced an uplifting of 137~0 Ma; Exiyudong, Chuandong folds and Chuandongnan regions, 97~0 Ma; Chuandongbei and Chuanzhong regions, 56~0 Ma; Chuanxi and Dianxi areas 23~0 Ma. The general trend is that the onsets of uplifting for different tectonic units in the Mid-upper Yangtze area decrease westward.

江漢盆地在157～97Ma和10 Ma以來(lái)發(fā)生了兩期大規(guī)模抬升剝蝕；湘鄂西—武陵地區(qū)狠狠色2019、黔中隆起自137Ma開(kāi)始持續(xù)抬升剝蝕在线视频xxxx；鄂西渝東、川東褶皺帶從97 Ma開(kāi)始持續(xù)抬升剝蝕欧美精品中文字幕手机在线；川東北和川中地區(qū)于56 Ma才開(kāi)始遭受抬升剝蝕欧美A∨免费网站；川西—滇西地區(qū)則自23 Ma以來(lái)經(jīng)歷了較大規(guī)模的抬升剝蝕。

Two episodes of uplifting in Jianghan basin occurred within 157～97Ma and 10~0 Ma; Xiang′exi-Wuling region and Qianzhong hights experienced an uplifting of 137~0 Ma; Exiyudong, Chuandong folds and Chuandongnan regions, 97~0 Ma; Chuandongbei and Chuanzhong regions, 56~0 Ma; Chuanxi and Dianxi areas 23~0 Ma.

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