刺穿构造是首次在滇中中元古界昆阳群中发现的一种特殊的地质构造,它是两条近于平行的断裂所挟持的老地层,刺穿于新的地层之中,形成刺穿体。这两条断裂称之为边界断裂,它们同斜,走向近于一致,但两断裂性质不同,下盘断裂属逆冲推覆性质;上盘断裂属正断裂。刺穿构造在平面上大多成扁豆状、锲状,部分成似圆形、脉状和不规则状,成群产出,大小变化很大,小到数十平方厘米,大到数十平方公里。 据孙克祥等《滇中地区昆阳群中的刺穿构造 》修改。
认识刺穿构造控矿,为在昆阳群内的找矿工作开辟了新的途径。
And understanding the ore controlled by diapiric structure has started a new route for the ore prospecting work in the Kunyang Group.
它是位于刺穿构造内,以原始铜沉积为基础,受构造控制的后期叠加改造富化矿床。
It is Iocated in a diapiric structure, controlled by structure, with a primary Cu deposition basis, and enriched by the later superimposed reformation.
研究刺穿体、矿体和控制二者的构造之间的关系具有重要的理论价值和找矿意义。
Research about the relationship of diapir, ore body and structure of controlling them has important theoretical value and prospecting significance.
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