التفاصيل البيبلوغرافية
| العنوان: |
西准噶尔包古图地区地层火山岩锆石LA-ICP-MSU-Pb年代学研究 ; The zircon U-Pb LA-ICP-MS geochronology of volcanic rocks in Baogutu areas, wetern Junggar. |
| المؤلفون: |
郭丽爽, 刘玉琳, 王政华, 宋达, 许发军, 苏犁 |
| المساهمون: |
造山带与地壳演化教育部重点实验室北京大学地球与空间学院, 兰州大学西部环境教育部重点实验室, 新疆有色地质勘查局地质研究所, 中国地质大学(北京)地学实验中心 |
| المصدر: |
万方 ; 知网 ; SCI |
| بيانات النشر: |
岩石学报 |
| سنة النشر: |
2010 |
| المجموعة: |
Peking University Institutional Repository (PKU IR) / 北京大学机构知识库 |
| مصطلحات موضوعية: |
西准噶尔, 包古图, 火山岩, 锆石, U-Pb年代学, West Junggar, Baogutu, Volcanics, Zircon, U-Pb dating |
| الوصف: |
包古图地区位于西准噶尔东南部,区内出露地层主要为石炭系太勒古拉组、包古图组和希贝库拉斯组,为一套巨厚的半深海相-大陆坡相火山-火山碎屑沉积建造。这套地层的时代归属和地层层序长期以来一直存在争议。本文报导了包古图地区实测地层剖面,并从太勒古拉组玄武岩和包古图组及希贝库拉斯组凝灰岩中分别选出锆石,进行了LA-ICP-MS U-Pb年代学研究,获得~(206)Pb/~(238)U加权平均年龄分别为357.5±5.4Ma、332.1±3.0Ma和336.3±2.5Ma。由此确定这套地层属于早石炭世的杜内阶到维宪阶,由下到上依次为太勒古拉组、包古图组和希贝库拉斯组。 ; There is a great thickness of bathyal- and slope-facies volcanic-volcaniclastic sedimentary sequence at Baogutu area in southeast of western Junggar, which are named as Tailegula Formation, Baogutu Formation and Xibeikulas Formation, respectively. There have been controversies about the geological ages and stratigraphic subdivision about these strata for a long line. So we surveyed the stratum section at Baogutu area and separated zucons from basalt of the Tailegula Formation and tuff of Baogutu Formation and Xiberkulas Formation LA-ICP-MS U-Pb dating on these zircon grams gives the (206)Pb/(238) U weighted mean ages of 357 5 +/- 5 4Ma, 332. 1 +/- 3 0Ma and 336. 3 +/- 2 5Ma, respectively, indicating that the strata sequence from bottom to top should be Tadegula Formation, Baogutu Formation and Xiberkulas Formation in turn, which were formed from Tournaisian to Visean of Early Carboniferous ; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000275734400011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E) ; 中文核心期刊要目总览(PKU) ; 中国科技核心期刊(ISTIC) ; 中国科学引文数据库(CSCD) ; 46 ; 02 ; 471-477 ; 26 |
| نوع الوثيقة: |
journal/newspaper |
| اللغة: |
Chinese |
| تدمد: |
1000-0569 |
| Relation: |
岩石学报.2010,(02),471-477.; 935758; http://hdl.handle.net/20.500.11897/179814; WOS:000275734400011 |
| الاتاحة: |
https://hdl.handle.net/20.500.11897/179814 |
| رقم الانضمام: |
edsbas.63F1E622 |
| قاعدة البيانات: |
BASE |