CA-ID-TIMSWilyerpa FormationArticleA central prediction of the Snowball Earth hypothesis is that glacial onset should be synchronous at low latitudes, and its termination should be rapid and synchronous globally. High precision U/Pb zircon ages provide supporting evidence for the synchronous onset (...
超低本底单颗粒锆石 CA-ID-TIMS U-Pb 高精度定年方法. 科学通报, 2016, 61: 1121–1129 Chu Z Y, Xu J J, Chen Z, et al. Ultra-low blank analytical procedure for high precision CA-ID-TIMS U-Pb dating of single grain zircons (in Chi-nese). Chin Sci Bull, 2016, 61: 1121–1129, ...
建立了超低本底单颗粒锆石高精度CA-ID-TIMS U-Pb分析方法. 与国内早期实验室报道的全流程Pb本底(30~50 pg)相比, 目前本工作全流程Pb本底水平已降低1个数量级以上(2~3 pg), 可以更好地满足单颗粒锆石高精度ID-TIMS U-Pb定年要求. 同时, 详细研究了Pb流程本底的来源, 并且对全流程Pb本底获得较高精度的Pb...
New high precision CA-ID-TIMS U-Pb zircon ages from the Thuringian Forest Rotliegend section Geophysical Research AbstractsKner, AlexandraTichomirowa, MarionLützner, HaraldGaupp, Reinhard
超低本底单颗粒锆石ca-id-tims u-pb高精度定年方法 更新时间:2024年12月17日 综合排序 人气排序 价格 - 确定 所有地区 查看详情 ￥25.00/个 广东东莞 卡轮新款欧美嘻哈吊坠微镶锆石豹子头吊坠动物项链hiphop钛钢饰品 独立包装 广东卡轮饰品有限公司 6年 “超低本底单颗粒锆石ca-id-tim...
Zircon U-Pb CA-ID-TIMS dating of three samples of the T1 tuff bed combined give a best estimate for the deposition of the volcanic ash bed of 141.11 ± 0.25/0.26/0.30 Ma. The range of single zircon dates from ca. 143 to 141 Ma indicate that the volcanic ash was derived from a rela...
华南深水区埃迪卡拉系-寒武系界线制约:来自留茶坡组顶部锆石CA-ID-TIMS U-Pb年龄证据 华南埃迪卡拉系-寒武系界线位置的确定及埃迪卡拉系-寒武系过渡地层高精度时间框架的构建是迄今尚未完好解决的科学问题.于贵州江口平引剖面留茶坡组顶部发现的两层钾质... 王伟,周明忠,储著银,... - 《中国科学:地球科学》 被...
(Table1). For comparing CA-ID-TIMS analyses that used the same U–Pb isotopic tracer, including the age-stratigraphic models discussed below, the systematic uncertainties (YandZ) can be ignored and only the internal age uncertainties (X) are considered. However, meaningful comparisons between U...
2020年的时候,我们曾经专门研究过一家加拿大国民咖啡品牌Tims进入中国,这家当时就获得腾讯加持的咖啡巨头可谓是风头无两,如今一年时间快到了,红杉、腾讯再度资本加持,获得钞能力的Tims能够进一步杨帆起航接过瑞幸的接力棒进一步冲击星巴克吗? 一、Tims再获红杉、腾讯加持 根据钛媒体的报道,2021年2月最后一个工作日,元宵...
摘要: CA-TIMS(Chemical Abrasion-Thermal Ionization MassSpectrometry)化学剥蚀热电离质谱是锆石U-Pb年代学上的重大突破,其采用对单颗粒锆石高温退火热处理和化学溶蚀清洗的前处理方法,解决铅丢失问题以重建锆石封闭系统,使得U-Pb定年精度优于0.1%,远高于SHRIMP或LA-ICPMS微区定年的1%-2%的精度,在确定...