Thermoluminescence color images from quartzs of beach sands.
Thermoluminescence color images from quartzs of beach sands.
复制标题
海滩沙子石英的热释光彩色图像。
DOI：
10.2343/geochemj.20.111
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发表时间：
1986
影响因子：
0.8
通讯作者：
T. Sotobayashi
中科院分区：
文献类型：
--
作者：
T. Hashimoto;A. Koyanagi;K. Yokosaka;Y. Hayashi;T. Sotobayashi
对采自新泻地区北方的石英质海滩砂进行了热释光彩色图像分析。在通过磁性分离纯化石英级分之后进行分析。纯化后的样品进行化学蚀刻，然后进行γ射线照射。红色TL发射颗粒与蓝色颗粒的比例似乎与各自海滩砂的来源有关。红色热释光颗粒初步归属于火山为主的源岩，而蓝色的热释光颗粒则主要是花岗岩等深成岩石的风化产物。TL-分光光度分析已试图获得更多的定量信息的TL-发射的两种不同颜色的这些海滩砂。从分析相应的发光曲线，对应于不同的波长区域的红色到蓝色TL的强度比进行了评估。这些比值与TLCI参数一致。并对TLCI和TL-分光光度法在地质和考古样品中的应用提出了建议。
Some quartzose beach sands, collected from the northern part of Niigata district, were examined by thermoluminescence color image (TLCI) analyses. Analyses were performed after purification of the quartz fraction by magnetic separation. Purified samples underwent chemical etching followed by gamma-ray irradiation. The proportion of red TL-emitting grains to blue ones seems to be related to the origin of the respective beach sands. Red TL grains are tentatively attributable to a volcanic dominated source, whereas the blue ones are mainly weathering products of plutonic rocks such as granite. TL-spectrophotometric analyses have been attempted to obtain more quantitative information on the TL-emission of the two different colors for these beach sands. The intensity ratios of red to blue TL were evaluated from analyses of respective glow-curves, corresponding to different wavelength regions. The ratios were concordant with the TLCI parterns. The applications of TLCI and TL-spectrophotometry to geological and archaeological samples are also suggested.