| 粤北新洲同推覆期变形实验结果及其意义 |
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| 引用本文： | 彭少梅,王子江.粤北新洲同推覆期变形实验结果及其意义[J].大地构造与成矿学,1996,20(2):127-133. |
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| 作者姓名： | 彭少梅 王子江 |
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| 摘 要： | 粤北新洲推覆构造是新洲金矿和大沟谷金矿的控矿构造。在各推覆席体弱变形域中取岩石样品，进行中低温高压递进变形实验。结果表明，变形样品的构造分解作用强烈，剪切溶解一定向生长现象发育，中温中ε滑移系起主导作用，直线型位错广泛出现，从而再现了同推覆期构造分解和剪切溶解现象。在此基础上，提出了Ａｕ－Ａｓ－Ｂｉ－Ｗ型含矿源岩的同推覆期活化成矿模式。
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| 关 键 词： | 同推覆期，变形实验，组构分析，成矿模式 |
SYNTHRUSTING DEFORMA TION EXPERIMENTAL RESULTS AND ITS SIGNIFICANCE IN XINZHOU AREA,NORTHERN GUANGDONG |
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| Abstract: | The Xinzhou thrust structure is the ore-control structure of the Xinzhou Au deposit and the Dagogou Au deposit, Northern Guangdong. The rock samples, collected from weak deforming domains in each thrust sheets, have been expcrimented with deformation under middle to low temperature and high pressure. The results sbow that,(1)the deformed samples have undergone strong deformation partitioning.(2) developing of shear solution-directional growih.(3)the slide system of middle temperature and middle ε has played important role.(4) straight-line dislocation develops intensirely, All of these review synthrusting deformation partitioning and shear solution, Then, this paper proposes a medel of synthrusting active ore formation with Au-As-Bi-W style source rock. |
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| Keywords: | synthrusting deforming experiment fabric analysis ore-forming model |
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