The prerequisite for u test of comparison of sample rate and population rate;
樣本率與總體率比較u檢驗(yàn)的應(yīng)用條件
This paper discussed the application of u-test formula in details, introduced the calculating formulae of u-test under various conditions about the standard error of the population.
對(duì)兩個(gè)大樣本均數(shù)比較的 u檢驗(yàn)計(jì)算公式進(jìn)行了詳細(xì)的探討 ,介紹了總體標(biāo)準(zhǔn)差已知、未知、相等和不等各種情況下 u檢驗(yàn)的計(jì)算公式 ,認(rèn)為在大樣本的情況下進(jìn)行均數(shù)比較的檢驗(yàn) ,應(yīng)根據(jù)具體情況選擇計(jì)算公式。
The U-Pb dating on detrital zircons is employed in this research to a better understanding of the varied provenances and the regional tectonic evolution.
閩西南晚三疊世文賓山組碎屑鋯石形態(tài)學(xué)及U-Pb測(cè)年分析表明:(1)晚三疊世文賓山組物源復(fù)雜,其主要源區(qū)是閩西北隆起帶;(2)閩西南晚三疊世具有大于2500 Ma的太古宙的源區(qū),華夏古陸可能存在太古宙陸核或東南沿海還存在另一古老基底;(3)980~1190 Ma的碎屑鋯石說明晚三疊世閩西南具有G renville期物質(zhì)來源,它們可能來自另外一個(gè)陸塊,由于印支期古特提斯洋關(guān)閉與華夏地塊拼接,并為晚三疊世盆地提供物源;(4)區(qū)內(nèi)印支期巖漿巖帶也是晚三疊世沉積的重要物源區(qū)。
Forming Ages of Early Precambrian Metamorphic Strata in Shandong Province--Proofs of Zircon SHRIMP U-Pb Dating
山東早前寒武紀(jì)變質(zhì)地層形成年代——鋯石SHRIMP U-Pb測(cè)年的證據(jù)
LA-ICP-MS zircon U-Pb dating from granite-porphyry rcoks in Xikuangbei,East Junggar,Xinjiang,China
新疆東準(zhǔn)噶爾錫礦北花崗斑巖的鋯石LA-ICP-MS U-Pb測(cè)年
A Review of In-situ U-Pb Dating Methods for the Accessory U-Bearing Minerals
含U副礦物的原位微區(qū)U-Pb定年方法
Molybdenite Re-Os and SHRIMP zircon U-Pb dating of Duobuza porphyry copper deposit in Tibet and its geological implications
西藏多不雜斑巖銅礦床輝鉬礦Re-Os和鋯石U-Pb SHRIMP測(cè)年及地質(zhì)意義
In situ U-Pb zircon dating using laser ablation-multi ion counting-ICP-MS
LA-MC-ICP-MS鋯石微區(qū)原位U-Pb定年技術(shù)
SHRIMP Zicon U-Pb Dating and Its Geological Implication for the Xiangshan Porphyric Dacite-Rhyolitic
相山流紋英安斑巖鋯石SHRIMP U-Pb年齡及地質(zhì)意義
Ziron U-Pb Age of Gneissic Granites in the Tengchong Block,Western Yunnan
滇西騰沖地塊片麻狀花崗巖的鋯石U-Pb年齡
Zircon U-Pb Age of Siliceous Rock from the Central Jilin and Its Geological Significance
吉林中部硅質(zhì)巖中鋯石U-Pb年齡及其地質(zhì)意義
Zircon U-Pb Ages, Petrogenesis and Crustal Evolution of the Granites in Northeastern Part of the Great Xing'an Range;
大興安嶺東北部花崗巖類鋯石U-Pb年齡、巖石成因及地殼演化
The Chronological Study on U-Pb Dating of Modern River Detrital Zircon in North Piedmont of Qinling and Its Geological Indication;
秦嶺北麓現(xiàn)代河流碎屑鋯石U-Pb年代學(xué)研究及其地質(zhì)意義
Zircon U-Pb Age and Geochemistry of the Daohugou Volcanic Rocks in Ningcheng Area, Inner Mongolia;
內(nèi)蒙寧城道虎溝火山巖的U-Pb年代學(xué)及地球化學(xué)研究
Early Cretaceous Zircon SHRIMP U-Pb Age of the Trachyte and Its Significances of the Gan-Hang Belt
贛杭帶早白堊世粗面巖鋯石SHRIMP U-Pb年齡及其意義
Study on Intrusive Rocks Forming Period and Stages Division in Ludong Area
魯東地區(qū)侵入巖形成時(shí)代和期次劃分——鋯石SHRIMP U-Pb年齡的證據(jù)
Geochemical Charactericstic and Zircon SHRIMP U-Pb Dating of Sehe Granite in Shanyang County,Shanxi Province and Its Geological Significance
山陽色河花崗巖地球化學(xué)特征和鋯石SHRIMP U-Pb年代學(xué)
Zircon LA-ICP-MS U-Pb Age of the Jinping-Tongchang Porphyry Associated with Cu-Mo Mineralization and its Geological Implication
金平銅廠銅鉬礦床賦礦巖體鋯石LA-ICP-MS U-Pb年齡及意義
Zircon SHRIMP U-Pb dating and geological significance from granite bodies in Tangzhangzi and Niuxinshan, eastern Hebei Province, China
冀東唐杖子、牛心山花崗巖體鋯石SHRIMP U-Pb定年及其地質(zhì)意義
Zircon SHRIMP U-Pb dating of two linear granite plutons in southern Altay Mountains and its tectonic implications
阿爾泰山脈南部線性花崗巖鋯石SHRIMP U-Pb定年及其地質(zhì)意義
Zircon U-Pb Dating and Tectonic Significance of the Shipingchuan Granite in Southeastern Zhejiang Province,SE China
浙東南石平川花崗巖體LA-ICP-MS鋯石U-Pb年代學(xué)及構(gòu)造意義