期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
约旦北部沿断层分布的氡异常
1
作者 张兆山 戴忠强 谈成龙 《世界核地质科学》 CAS 2003年第2期101-103,共3页
使用固体核子径迹探测器(SSNTDs)CR—39在一个石灰岩采石场区的5个位置进行了氡射气测量。在沿垂直于断层的每一条测线的4个不同的已知可追踪断层平面的土壤气中测量了氡水平。断层上的氡水平比远离断层的地方的氡水平要高3~10倍,而在... 使用固体核子径迹探测器(SSNTDs)CR—39在一个石灰岩采石场区的5个位置进行了氡射气测量。在沿垂直于断层的每一条测线的4个不同的已知可追踪断层平面的土壤气中测量了氡水平。断层上的氡水平比远离断层的地方的氡水平要高3~10倍,而在某些位置上获得了比其他地方更宽的肩形凸出异常。沿着第5条推测的断层带也采用这一方法进行了测量,结果显示,断层带附近的采样点也显示出氡水平异常,其氡水平值比背景值高3倍。由这些结果可以推断出一个重要事实,即约旦的许多城市和村庄都是建立在有密集断层的地带。这些研究工作会明显地影响未来的氡填图。此外,氡气对断层带的探测被证明是一种很好的工具。 展开更多
关键词 固体核子径迹探测器 断层带 铀矿床 约旦 石场区 氡填图 地球化学勘探 地质示踪剂
下载PDF
Some Results of Paleozoic Paleomagnetic Research
2
作者 Minasyan Juliete 《Journal of Earth Science and Engineering》 2014年第11期703-708,共6页
This application note discusses the preliminary results of paleomagnetics studies of several incisions of the Paleozoic period the territory of Armenia and neighboring regions (Minor Caucasus). It is supposed that b... This application note discusses the preliminary results of paleomagnetics studies of several incisions of the Paleozoic period the territory of Armenia and neighboring regions (Minor Caucasus). It is supposed that before the Permian period the Armenian-lranian Mezocontinent was uniform with Afro-Arabia and only at the end of the late Paleozoic the formed Mesozoic ocean separated these areas from each other. A result of application of the complex laboratory investigations were identified from samples of primary magnetization the direction of which corresponds to the time of formation of the studied rocks. On the basis of paleomagnetic researches of Triassic, Permian, Devonian, Carbonian rocks a preliminary conclusion has been made about the dipole configuration of the geomagnetic field throughout Paleozoic. The comparison of the obtained data to paleomagnetic definitions of African, Arabian plates, Europe and the Siberian platform leads to the conclusion that the Minor Caucasus existed separately from the present general lithosphere blocks of Greater Caucasus and Europe. 展开更多
关键词 PALEOMAGNETIC magnetic field PALEOZOIC Afro-Arabian plates.
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部