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文章描述了“铜花”加丹加蒿莽草(Haumaniastrum katang)和诺氏蒿莽草(H.robertii)的分类和形态。表明草本植物的收藏标本是鉴定潜在的矿产地植物学指示植物的一个重要资源。同时,分析了采自安哥拉、刚果、赞比亚和坦桑尼亚的样品中的Co、Cu和Zu。虽然两种植物都被了解到含有超量聚集的Co和Cu(干物质中大于1000μg/g[ppm]),但这种能力似乎局限于刚果的沙巴弧形铜矿带和赞比亚铜矿带的相邻部分如索卢韦齐(Solwezi)。由于在安哥拉、赞比亚和坦桑尼亚的无矿化地段上方有几个样品出现,因而加丹加蒿莽草作为铜的通用性指示植物的可靠性并未被研究所证实。有一些证据表明,加丹加蒿莽草是一种出现在错动地层之上(在那里很少有其它植物的竞争)的特有种。这种偏执的竞争有助于解释这种植物为什么会出现在对植物有毒害作用的矿化体之上。尽管这个种在富铜土壤之上或离开富铜土壤均有分布,但它作为铜或钴矿化的一种地植物学指示植物仍然是有价值的,尤其是在沙巴弧形铜矿带。有一个例外情况是,在这两个种中没有任何Zn的异常聚集,这可能是由于中非的铜矿石中这种元素不很丰富。
The article describes the classification and morphology of “Brassica” Haumaniastrum katang and H. robertii. Herbarium collections are an important resource for identifying potential botanical indications of mineral origin. In the meantime, Co, Cu and Zu in samples taken from Angola, Congo, Zambia and Tanzania were analyzed. Although both plants are known to contain excessive cohesion of Co and Cu (> 1000 μg / g [ppm] in dry matter), this ability appears to be limited to the Sabah arcuate copper belt and Zambia copper belt in the Congo Adjacent parts like Solwezi. The versatility of Artemisia annua as the copper indicates that the reliability of plants has not been demonstrated by the research due to the presence of several samples above the mineralized areas in Angola, Zambia and Tanzania. There is some evidence that Artemisia annua is a endemic species that appears above dislocated formations where there is very little competition from other plants. This paranoid competition helps explain why the plant appears on mineralized plants that are toxic to plants. Although this species is distributed above or outside of copper-rich soils, it is still valuable as a botanic indicator of copper or cobalt mineralization, especially in the Sabah arcuate copper belt. With one exception, there is no abnormal accumulation of Zn in either species, probably due to the non-abundance of this element in copper ore from Central Africa.