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在地壳的地球化学场中,金属矿床是极为密集的异常,它常具比较明显的同心环带状结构和递减的边界。我们所观察到的异常规模是极不相同的,但在大多数情况下它们不超过10~8—10~9M~3,这说明其局限性或密集性。解决说明这种异常强度的问题比较复杂。与元素分配(这种分配可由元素的平均含量及分散度估计)比较均匀的岩石体及其建造不同,金属矿床是由矿体和金属晕组成,在一般情况下,它的特点是有规律增长的富集度,并且具有显
In the geochemical field of the crust, metal deposits are extremely dense anomalies, and they often have more obvious concentric ring-shaped structures and decreasing boundaries. The magnitude of the anomalies we observe are very different, but in most cases they do not exceed 10 -8-10 9M 3 indicating their limitations or intensities. Solving the problem of this unusual intensity is complicated. In contrast to the more homogeneous rock mass and its construction than the elemental distribution (which is estimated by the average content of elements and the degree of dispersion), the metal deposit is composed of ore bodies and metal haloes, and in general, it is characterized by a regular increase The degree of enrichment, and has significant