热液型金属矿床生物成矿作用研究的关键在于检测成矿流体中的有机质，尤其是其中的分子化石。以南京栖霞山多金属矿床为例，重点研究了成矿流体遗留下来的最直接的样品－有机包裹体中的分子化石。

Identification of organic matter in ore forming fluid is the keypoint in the studdying of biometallogenesis on hydrothermal ore deposits. This paper focuses on the molecular fossils in hydrocarbon inclusions from the Qixiashan polymetallic deposit in Nanjing. The optical and spectral characteristics of the individual hydrocarbon inclusions are systematically examined through such non destructive methods as Fourier transform infrared micro spectroscopy and ultra violet fluorescent microscope photometer. Series of biomarkers in metallogenic fluid are identified through gas chromatography mass spectrometry(GC MS). These biomarkers indicate that organic matter in ore froming fluid is derived from algae and bacteria. The investigation on the molecular fossils from fluid further strengthens biometallogenesis in the deposit which is previously discussed according to the mineralized organisms.

P618.201

国家自然科学基金