The aim of the investigation is to build up a more precise stritigraphic sequence and a corresponding environmental index based on a combination of evidence in the research of petrology, biostratigraphy, paleomagnetism, sedimentation, and isotope.

在結(jié)合巖石及生物地層、古地磁a级黄片视频免费、沉積環(huán)境你懂的福利、碳氧同位素等研究方法的綜合證據(jù)基礎(chǔ)上建立較精確的地層層序及其相對(duì)應(yīng)的環(huán)境指標(biāo)操女生的视频。

This paper presents an integrated and comprehensive Lower Triassic sequence of Chaohu to serve for a standard regional stratigraphical sequence, based upon up to date achievements in the studies of lithostratigraphy, biostratigraphy and carbon isotope stratigraphy at three sections in the area.

根據(jù)巢湖地區(qū)3條代表性下三迭統(tǒng)剖面的巖石地層、生物地層和碳同位素地層的最新研究成果歸納出本區(qū)早三迭世綜合地層序列亚洲爱爱视频网址，作為區(qū)域地層對(duì)比研究的標(biāo)準(zhǔn)国产亚洲91在线。

By summing up the cyclicity, rock association and occurrence of volcanic rocks with their overlying and underlying contact relations and forming environment, and concerning the research results of isotope chronology and biostratigraphy, the Yixian formation of the working area may be subdivided into four members.

綜合火山巖的旋回性特徵，巖石組合美国免费黄片、巖石產(chǎn)出特徵www.jiuse91.com，不同巖石組合的上、下接觸關(guān)系和巖石形成環(huán)境的分析結(jié)果av在线官网国产，結(jié)合同位素年代學(xué)及生物地層學(xué)的研究成果国产性爱一级，區(qū)內(nèi)義縣組被劃分成了4個(gè)巖性段。

Various dating methods have been proposed such as radiochemical dating by 10Be and U-Th series, biostratigraphy, magnetostratigraphy, Sr stable isotope method, estimates from the age of substrate, and determinates by regressive formulas.

常用的生長(zhǎng)速率測(cè)定方法有：10Be和U-Th系放射性同位素測(cè)年法蜜臀亚洲精品国产AⅤ综合第一、生物地層法、磁性地層法在线观看国产美女精品、穩(wěn)定同位素法亚洲精选无码精品、基巖年齡推定法，以及經(jīng)驗(yàn)公式計(jì)算法等色七七国产精品。

Based on the PTB study situation of the studied area, two terrestrial sections and one marine-terrestrial section were chosen for the sedimentary and sequence stratigraphy study. The former are Chahe section and Zhejue section in Weining, Guizhou, and the latter is Mide section in Xuanwei, Yunnan. The definition and correlation of the TPTB were discussed based on the results of biostratigraphy, isotope stratigraphy, geochemostratigraphy, and molecule stratigraphy. Thus, it supplied a perfect base for the establishment of the TAGSSP in the area.

針對(duì)研究區(qū)二疊系—三疊系界線剖面研究現(xiàn)狀精品国产一区二区亚洲人成毛片，選擇了二條陸相剖面，既貴州威寧岔河剖面和哲覺(jué)剖面国产激情一区二区三区无码，一條海久久综合综合久久综合、陸交互相剖面即云南宣威密德剖面，開(kāi)展了有關(guān)沉積學(xué)和層序地層學(xué)方面的研究伊人一区二区三区久久精品，并結(jié)合生物地層精品国产三区、同位素地層、地球化學(xué)地層和分子地層等資料探討了研究區(qū)二疊系—三疊系界線的劃分與對(duì)比方案国产原创第一页，從而為在該區(qū)爭(zhēng)取建立陸相二疊—三疊系輔助層型剖面和點(diǎn)打下了良好基礎(chǔ)精品一级在线免费。

Red birthmark, so long in the face, to the hospital and see the isotope Branch.

是紅胎記，好長(zhǎng)在面部色五月开心天天，到醫(yī)院的同位素科看吧亚洲激情乱伦。

Had proven according to this theory Urey has discovered the hydrogen isotope deuterium existence, however the Bohr theory's further development encounters the insurmountable difficulty, it is unable to process compared to the hydrogen atom slightly for the complex spot helium atom, also inextricability light spectral line intensity question and non-fetter system's question; The Bohr theory also is only the quantal concept and the classical theory mix, theoretically appears is not very harmonious.

根據(jù)此理論證明了尤里發(fā)現(xiàn)了氫的同位素氘的存在，然而玻爾理論的進(jìn)一步發(fā)展遇到不可克服的困難一级A片30分钟免费观看，它無(wú)法處理比氫原子稍為復(fù)雜一點(diǎn)的氦原子自拍一区偷拍，也無(wú)法解決光譜線的強(qiáng)度問(wèn)題和非束縛體系的問(wèn)題；玻爾理論還只是量子概念和經(jīng)典理論的混合亚洲午夜视频国产A片，理論上顯得很不和諧午夜三級片免费观看。

Several results have been achieved as followings: 1. The response of stable carbon isotope in karst cave system to surface climate and environment This index can distinguish origin forest from other vegetation, but cannot distinguish transitional eco-environment such as bosk, grassplot and rocky desertification.

洞穴系統(tǒng)穩(wěn)定碳同位素對(duì)地表氣候環(huán)境的響應(yīng)通過(guò)對(duì)4個(gè)不同生境洞穴系統(tǒng)的研究，認(rèn)為洞穴系統(tǒng)穩(wěn)定碳同位素可以很好地將原始森林植被同其它植被類型區(qū)分開(kāi)求一毛片网站在线观看；但是不能很好地區(qū)分植被退化的過(guò)渡類型如灌叢丁香五月婷婷激情五月天、草坡以及石漠化等999黄色com。

Taking cave systems under different vegetation in guizhou karst area as study objects, this paper analyzes the spatio-temporal evolution of stable carbon isotope in karst cave system. Vegetation of Liangfeng cave, Qixing cave, Xiniu cave and Jiangjun cave are respectively origin forest, bosk, grassplot and rocky desertification.

本論文在貴州巖溶地區(qū)選擇了上覆植被分別為原始森林、灌叢草坡自拍日韩在线视频、草坡和石漠化的涼風(fēng)洞www.激情小说、七星洞、犀牛洞精品无码av无码专区、將軍洞作為研究對(duì)象欧美在线艹，對(duì)巖溶洞穴系統(tǒng)穩(wěn)定碳同位素的時(shí)空演化規(guī)律進(jìn)行了詳細(xì)的分析，得出以下幾點(diǎn)認(rèn)識(shí)：一国产盗摄Aⅴ一区二区。

Former the bougie that the bougie of a cross can be isotropy, with radiate to detect from develop the bougie that; also can be blame isotope, give through fluorescence or enzymatic law detect.

原位雜交的探針可以是同位素的探針18黄色网，用放射自顯影來(lái)檢測(cè)；也可以是非同位素的探針性色精品福利一区二区，通過(guò)熒光或酶法予以檢測(cè)久久久免费性交毛片。