パキスタン産水晶中の石油包有物の蛍光について
2011 年 65 巻 1 号 p. 17-21
詳細
2011 年 65 巻 1 号 p. 17-21
Transparent euhedral crystals of quartz from Wad, Baluchistan, Pakistan include petroleum consisting of three phases. Yellowish inclusions in liquid phase exhibit bluish-white luminescence under UV-light excitation. The photoluminescence (PL) spectrum of yellowish inclusions under 360nm excitation consists of a broad band with a peak at 503nm. The emission peak exists at longer wavelength than that of crude oils from Wells in Joetsu and Chuetsu areas, Niigata, Japan. The PL excitation spectrum, obtained by observing luminescence at 520nm, shows the maximum luminescence efficiency under blue-light (450nm) excitation. It is inferred that the yellowish inclusions consist of a few aromatic hydrocarbons with different aromatic rings.
