u test

The prerequisite for u test of comparison of sample rate and population rate;

樣本率與總體率比較u檢驗的應用條件

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.

對兩個大樣本均數比較的 u檢驗計算公式進行了詳細的探討 ,介紹了總體標準差已知、未知、相等和不等各種情況下 u檢驗的計算公式 ,認為在大樣本的情況下進行均數比較的檢驗 ,應根據具體情況選擇計算公式。

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學及U-Pb測年分析表明:(1)晚三疊世文賓山組物源復雜,其主要源區是閩西北隆起帶;(2)閩西南晚三疊世具有大于2500 Ma的太古宙的源區,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期物質來源,它們可能來自另外一個陸塊,由于印支期古特提斯洋關閉與華夏地塊拼接,并為晚三疊世盆地提供物源;(4)區內印支期巖漿巖帶也是晚三疊世沉積的重要物源區。

Forming Ages of Early Precambrian Metamorphic Strata in Shandong Province--Proofs of Zircon SHRIMP U-Pb Dating

山東早前寒武紀變質地層形成年代——鋯石SHRIMP U-Pb測年的證據

LA-ICP-MS zircon U-Pb dating from granite-porphyry rcoks in Xikuangbei,East Junggar,Xinjiang,China

新疆東準噶爾錫礦北花崗斑巖的鋯石LA-ICP-MS U-Pb測年

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測年及地質意義

In situ U-Pb zircon dating using laser ablation-multi ion counting-ICP-MS

LA-MC-ICP-MS鋯石微區原位U-Pb定年技術

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

吉林中部硅質巖中鋯石U-Pb年齡及其地質意義

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;

秦嶺北麓現代河流碎屑鋯石U-Pb年代學研究及其地質意義

Zircon U-Pb Age and Geochemistry of the Daohugou Volcanic Rocks in Ningcheng Area, Inner Mongolia;

內蒙寧城道虎溝火山巖的U-Pb年代學及地球化學研究

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

魯東地區侵入巖形成時代和期次劃分——鋯石SHRIMP U-Pb年齡的證據

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特征和鋯石SHRIMP U-Pb年代學

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年代學及構造意義