Dating相关论文
1. It is important to pay your electricity bill on time, as late payments may affect your . A. condition B. income ......
The Quaternary groundwater system in the North China Plain is formed mainly through the terrestrial water flow action on......
U-Pb Zircon Geochronology and Geochemistry of Granitoids in the Douling Group in the Eastern Qinling
LA-ICPMS U-Pb zircon dating of the Sanpinggou, Gangou and Fengzishan granitoids in the Douling Group of the Eastern Qinl......
Zircon U-Pb dating is the most commonly used method for isotopic geochronology. However, it has been a difficult issue w......
The Xiaotian–Mozitan Shear Zone(XMSZ)is the boundary of the Dabie High-grade Metamorphic Complex(DHMC)and the North Hua......
(4)24/7 习惯用语24/7是二十四小时和七天的简称。知道了这个来源,它的意思就很明显了。我们知道一天一共二十四小时,而一星期总共......
在当前的考古年代学体系中,考古年代学方法可大致归为绝对年代和相对年代的测年方法。作者认为,绝对年代测年方法大多根据单一变量......
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view......
Geochemical characteristics of a 107 cm long sediment profile,collected from Ganquan Island,South China Sea,were analyze......
Angelababy started her career at age 14 as a model before going on to star in about 20 movies. For a while, all the publi......
With brilliant civilization during the transitional period from a original clan society to a state society in prehistory......
Zircon U-Pb age,trace elements,and Hf isotopes were determined for granulite and gneiss at Huangtuling,which is hosted b......
The results of the granulometrical and sequential analysis supported by micropaleontological dating using the foraminife......
Located at the west of the Linfen basin, the Luoyunshan piedmont fault zone controls the western boundary of the basin. ......
一直以来,西方的文艺作品经常引用橄榄树作为荣誉﹑和平﹑希望﹑健康﹑财富等的象征。1896年,第一届现代奥运会在希腊举行,冠军奖牌雕有希腊女......
Wuhan is a city with both an ancient history and a thriving present. Historic relics excavated from ancient tombs tell t......
Global climate change and its possible ecological consequences have become the focused issue(IPCC,2007;Mann et al.,2008;......
The sedimentary facies of the subaqueous Changjiang(Yangtze) River delta since the late Pleistocene was studied based on......
Based on the landforms, sedimentary sequence, fossil fauna and flora, and paleoclimatereflected by them as well as 14~C......
EVERY Saturday and Sunday evening on Jiangsu Satellite Television, a jury of 24 single young women fire questions at a b......
例一 阅读短文,根据所给语境,按要求完成下列各题。(2010湖北省黄冈市) My son Joe started dating a young lady whose father ......
Rhenium-osmium isotope constraints on the age and source of the platinum mineralization in the Lower
The shale at the bottom of the Lower Cambrian black series in South China is rich in nonferrous metals, noble metals, ra......
In situ cosmogenic 10Be dating of the Quaternary glaciations in the southern Shaluli Mountain on the
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Discovery of a 1.0 Ma Yellow River terrace and redating of the fourth Yellow River terrace in Lanzho
Based on the aeolian loess sequence-stratigraphic division and paleomagnetic datings on terraces, we found that an undis......
Zircon SHRIMP dating from Qaidamshan granite shows that the granite age is 446 Ma, similar to that of eclogite in the UH......
In the east of Xiaolangdi, many river terraces are developed at the exit of the Yellow River Gorges. Among them the terr......
Twenty Yongzheng copper coins were fast dating by X-ray energy dispersive spectrometer with scanning electron microscope......
渤海湾西天津南部平原区是研究海侵和海平面变化的天然理想场所。基于2个钻孔(ZKQ1孔和ZK1孔)沉积特征、测年(AMS 14C)及微体古生......
考虑到同一条断层的同一个位置所取的断层泥中,不同碎砾的溶蚀形貌并不相同,即使是同一个碎砾,其不同的表面,溶蚀形貌也可能不同,将统计......
九湾溪断裂带位于三峡工程大坝西南18Km处。利用从断裂带中的断层泥、断裂壁岩和断 裂围岩内选出的磷灰石,进行裂变径迹断代学研究,并对......
近些年,随着14C分析技术的发展,14C定年与示踪研究在考古学、海洋学、大气科学甚至生物医学等领域都有新的拓展,随着我国多台加速......
第二部分阅读(共两节,满分50分) 第一节(共15小题;每小题2.5分,满分37.5 分) 阅读下列短文,从每题所给的A、B、C、 D四个选项中选出......
乡土建筑是地处乡村,延用所在地传统建筑风格、工艺、材料,与地域文化和地理环境紧密相连,反映中国传统农耕文明的相关建筑遗迹。......
介绍了一种新发展起来的光释光测定年龄的技术--选频光释光技术.该技术使用的设备是光释光谱仪--BG1999.一年来该谱仪运行正常,性......
同裂变径迹定年方法一样,α反冲径迹(Alpha-recoiltracks)定年方法也是天然放射性释放的核粒子在固体中积累产生的可蚀刻径迹.自然......
介绍了一种自行设计的可连续测试20个样品的释光仪器,该仪器用半导体激光器作为激发光源,半导体激光器采用光纤输出,光斑大小和光......
用蒙特卡罗程序EGSnrc/DOSRZnrc模拟计算石英、长石、氧化铝薄片样品在^90Sr-^90Yβ源照射下的吸收剂量,研究样品片中β剂量随深度的......
丹巴地区中深变质岩分布广泛,有复杂的地质演化历史。采用7种同位素分析测试方法对该区的中深变质岩进行了有目的、有针对性地测试,......
综合迄今中国境内湖泊沉积、冰心、泥炭、石笋、古土壤和洪积物获得的全新世数据及序列表明,早全新世气候变化是不稳定的,至少存在......
介绍了一种自行设计、开发的单色光释光仪,编写了一套专用的软件,包括仪器控制和管理程序、数据采集与分析程序.该仪器由计算机控......
介绍了RGD3B型热释光剂量仪的基本性能,提出了用于年代测定工作时需注意的问题及预防措施.......
用蓝光释光 (BLSL)测定了唐代、南宋、元代、明(嘉靖)、清(乾隆)5只古代瓷器样品的年代,结果与已知瓷样的年代结果吻合得很好.本方......
新疆罗布泊罗北凹地盐湖第四系上部盐层中蕴藏丰富的卤水,卤水中富含钾(KCl平均品位1.40%),潜卤层上部的卤水中检测到较高含量的氚......
针对一种钾长石矿物作了其选频释光的初步研究.选择了不同激发光源对钾长石样品进行激发,获得了该矿物的释光图谱.通过对这种钾长......
本文简述了热释光断代对温度控制的要求,介绍了温度控制的基本原理及应用设计中实现高精度所采取的具体措施。以RGD3B型热释光剂量......
本文以北京顺义高丽营钻孔样品为测试对象,对其石英Ti心ESR信号进行了测试。结果表明,高丽营剖面B/M界限样品的ESR年龄为(861±89)ka,......
对东平湖沉积物柱状岩芯放射性年代学研究表明:12cm处的^137Cs比活度峰值对应于1963年人工核试验高峰,9cm和6cm处的^137Cs比活度蓄积......