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北京石花洞石笋发育了典型的中国北方型石笋年层,年层层面具有双重光性~([1]),即在透光条件下表现为一阻光暗线,而在紫外光照射下表现为一发光亮线。研究表明,石笋年层层面的发光物质为有机质~([2])。通过洞穴观测,确认有机质(DOC)在雨季初期从土壤淋滤至石笋顶部沉积~([3]),而与之配合的是雨季碳酸钙沉积较少甚至不沉积~([4]),从而形成很薄的有机质发光条带。然而,石花洞石笋层面的发
The stalagmite of Shicheng Cave in Beijing developed the typical stratosphere of stalagmite in the north of China with double lightness (~ 1) in the layer of the year, that is, it behaves as a light blocking dark line in the light-transmitting condition, while it behaves as A shining bright line. The results show that the light-emitting material in the stratosphere of stalagmite is organic matter [2]. Through the cave observation, it was confirmed that the organic matter (DOC) leached from the soil to the top of the stalagmite during the early rainy season [3]. However, in the rainy season, the DOC was deposited with little or no precipitation [4] Formation of thin organic light-emitting strips. However, stone flower hole stalagmite hair