-

检索结果分析

结果分析中...
检索条件:"关键词=^40AR/^39AR "
条 记 录,以下是1-10
视图:
排序:
显示条数:
伊舒断裂带年代学新证据被引量:13
《吉林地质》2005年第1期6-15,共10页殷长建 彭玉鲸 王彦生 李睿 陈跃军 
2001年我们首次在伊通—舒兰断裂带上的乐山镇达子沟获得压碎中细粒黑云母二长花岗岩中黑云母单矿物40Ar/39Ar坪年龄133.13±0.31Ma,等时线年龄133.37±0.60Ma;在靠山镇北口获得中细粒碎裂白云母/二云母花岗白云母单矿物40Ar/39Ar坪年龄...
关键词:断裂带 ^40AR/^39AR 年代学 等时线年龄 证据 大陆边缘 二长花岗岩 2001年 太平洋板块 动力学过程 大洋板块 地质时期 演化历史 多次转化 构造性质 中侏罗世 单矿物 黑云母 白云母 高速率 古近纪 细粒 东亚 俯冲 地球 
全自动^40Ar/^39Ar激光探针定年系统空白本底与微量样品定年被引量:7
《地球学报》2005年第B09期39-43,共5页高洪林 
氩-氩定年法中系统的空白本底是实现微区微量定年的关键条件。在北京大学“造山带与地壳演化教育部重点实验室全自动^40Ar/^39Ar激光探针定年系统”上以ZBH-25黑云母标样为试验样品进行了1个颗粒、3个颗粒和5个颗粒的全熔法定年以及7...
关键词:北京大学 ^40Ar/^39Ar激光探针定年系统 空白本底 微量样品定年 ^40AR/^39AR 本底条件 微量样品 定年法 激光探针 全自动 
Ultra-violet laser probe measurement of ^(40)Ar/^(39)Ar age profile in phlogopite被引量:1
《Chinese Science Bulletin》2004年第18期1949-1952,共4页HEHuaiyu WANGFei SANGHaiqing WANGYinglan BovenAriel ZHURixiang 
Ultra-Violet Laser Ablation Microprobe (UV-LAMP) extraction technique enables the direct investigation of Ar-Ar age profile in crystals, and yields more information on rates and durations of geological process than co...
关键词:激光探针 测量 ^40AR/^39AR 金云母 煌斑岩 
新疆东昆仑阿牙克岩体地球化学与^(40)Ar/^(39)Ar年代学研究及其大地构造意义被引量:31
《岩石学报》2003年第3期517-522,共6页郝杰 刘小汉 桑海清 
中国科学院知识创新项目(KZCX2-SW-119)资助课题研究成果
阿牙克岩体出露在新疆东昆仑阿牙克库木湖北侧的祁漫塔格山西段,侵入在早古生代低绿片岩相蛇绿混杂岩即“祁漫塔格群”之中。岩体地球化学特征显示其可能形成在伸展构造环境,角闪石的^(40)Ar/^(39)Ar坪年龄为420±4Ma;等时年龄为416±21...
关键词:新疆 东昆仑 阿牙克岩体 伸展构造背景 ^40AR/^39AR 晚志留世 
Occurrence of Excess ^40Ar in Amphibole: Implications of ^40Ar/^39Ar Dating by Laser Stepwise Heating and in vacuo Crushing被引量:3
《Journal of Earth Science》2018年第2期416-426,共11页Rong-Guo Hu Xiu-Juan Bai Jan Wijbrans Fraukje Brouwer Yi-Lai Zhao Hua-Ning Qiu 
funded by the National Natural Science Foundation of China (Nos. 41703054, 41503053);the Guangxi Natural Science Foundation Program (Nos. 2016GXNSFCA380022, 2014GXNSFBA118231);the Chinese Academy of Sciences-Royal Netherlands Academy of Arts and Sciences Joint PhD Training Programme (No. O8PhD-08)
ABSTRACT: The joint methods of ^40Ar/^39Ar laser stepwise heating and in vacuo crushing have been applied to date amphiboles from the North Qaidam ultra-high pressure metamorphic amphibolites. Two amphibole samples a...
关键词:^40Ar/^39Ar dating in vacuo crushing amphibole fluid inclusions. 
地质热年代学及其应用被引量:1
《地球学报》2005年第B09期248-251,共4页李小明 谭凯旋 
本文由中国科学院边缘海地质重点实验室基金(编号:MSGL04-4)资助.
本文简单介绍地质热年代学的含义、应用和进展,并重点介绍了裂变径迹与^40Ar/^39Ar热年代学。
关键词:热年代学 应用 裂变径迹 ^40AR/^39AR 地质 
^(40)Ar/^(39)Ar Dating of Xuebaoding Granite in the Songpan-Garze Orogenic Belt,Southwest China,and its Geological Significance被引量:5
《Acta Geologica Sinica(English Edition)》2010年第2期345-357,共13页LIU Yan DENG Jun ZHANG Guibin SHI Guanghai YANG Liqiang WANG Qingfei 
funded by the Major State Basic Research Program of China (2009CB421008);the Program for the New Century Excellent Talents in China(NCET-07-0771) ;the Program for Changjiang Scholars and Innovative Research Team in University,"111"Project(No.B07011);State Key Laboratory of Geological Processes and Mineral Resources(No.GPMR200838,GPMR0736)
Thus far, our understanding of the emplacement of Xuebaoding granite and the occurrence and evolution of the Songpan-Garze Orogenic Belt has been complicated by differing age spectra results. Therefore, in this study,...
关键词:^40Ar/^39Ar dating GRANITE Xuebaoding Songpan-Garze Orogenic Belt 
甘肃西秦岭新生代钾霞橄黄长岩的^(40)Ar/^(39)Ar同位素定年及其地质意义被引量:30
《科学通报》2005年第23期2638-2643,共6页喻学惠 赵志丹 莫宣学 周肃 朱德勤 王永磊 
国家自然科学面上基金(批准号:40572046);重点基金(批准号:40234052);国家重点基础研究发展规划项目(批准号:2002cB412600);国土资源部青藏高原专项(批准号:200101020404)的联合资助.
提供了从西秦岭6个钾霞橄黄长岩岩筒中分离出的金云母单矿物的40Ar/39Ar同位素定年数据,确定甘肃西秦岭新生代钾霞橄黄长岩的喷发时限主体集中在22~23 Ma之间,结合对青藏高原及其周边地区新生代火山岩同位素年代学资料的综合分析,论证...
关键词:钾霞橄黄长岩 ^40AR/^39AR 同位素定年 西秦岭 新生代 
ISEA reversed event in the Cretaceous Normal Super-chron (CNS): ^(40)Ar/^(39)Ar dating and paleomagnetic results被引量:6
《Chinese Science Bulletin》2004年第9期926-930,共5页SHIRuiping HEHuaiyu ZHURixiang PANYongxin 
In order to provide the age for the ISEA (one reversed event in the CNS) a combined rock magnetic, pa-leomagnetic and geochronologic study has been conducted on two Cretaceous andesitic basalt lava flows from Sanbaoyi...
关键词:ISEA 白垩纪 岩石磁性 古地磁 ^40AR/^39AR 年代测定 辽宁西部地区 
Evolution of the Mesozoic Granites in the Xiong'ershan-Waifangshan Region,Western Henan Province,China,and Its Tectonic Implications被引量:58
《Acta Geologica Sinica(English Edition)》2007年第2期253-265,共13页NAN Yigui ZHANG Shihong Franco PIRAJNO ZHANG Yuanhou 
the National Natural Science Foundation of China (grant No. 40032010B).
Based on the new data of isotopic ages and geochemical analyses, three types of Mesozoic granites have been identified for the Xiong'ershan-Waifangshan region in western Henan Province: high-Ba-Sr I-type granite emp...
关键词:granite MESOZOIC high Ba-Sr  ^40Ar/^39Ar dating POST-COLLISION ANOROGENIC western Henan 
检索报告 对象比较 聚类工具 使用帮助 返回顶部