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Zhao Mengwei, Hans Ahrendt, Klaus Wemmer. K-Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例[J]. Acta Sedimentologica Sinica, 1996, 14(3): 11-21.
Citation: Zhao Mengwei, Hans Ahrendt, Klaus Wemmer. K-Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例[J]. Acta Sedimentologica Sinica, 1996, 14(3): 11-21.

K-Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例

  • Received Date: 1995-04-04
  • Publish Date: 1996-09-10
  • 根据伊利石K-Ar测年法研究,确定鄂尔多斯盆地存在两期与构造运动有关的成岩作用事件:即与早期燕山运动有关的侏罗纪(170—160Ma)和与晚期加里东运动有关的志留-泥盆纪(420-370Ma)成岩作用时代。为了揭示碎屑物质对K-Ar年龄的影响和伊利石成岩作用的机制,本文提出了一个通过观察K-Ar年龄随深度变化的趋势来进行判断的模式。在K-Ar年龄小于地层时代的条件下,K-Ar年龄与深度呈正相关,或者很相近的K-Ar年龄与深度变化无关均标志着没有或很少有碎屑物质的影响;同时,前者指示逐渐埋藏条件下的成岩作用,而后者则反映短暂的热事件引起的成岩作用事件。

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  • Received:  1995-04-04
  • Published:  1996-09-10

K-Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例

Abstract: 

根据伊利石K-Ar测年法研究,确定鄂尔多斯盆地存在两期与构造运动有关的成岩作用事件:即与早期燕山运动有关的侏罗纪(170—160Ma)和与晚期加里东运动有关的志留-泥盆纪(420-370Ma)成岩作用时代。为了揭示碎屑物质对K-Ar年龄的影响和伊利石成岩作用的机制,本文提出了一个通过观察K-Ar年龄随深度变化的趋势来进行判断的模式。在K-Ar年龄小于地层时代的条件下,K-Ar年龄与深度呈正相关,或者很相近的K-Ar年龄与深度变化无关均标志着没有或很少有碎屑物质的影响;同时,前者指示逐渐埋藏条件下的成岩作用,而后者则反映短暂的热事件引起的成岩作用事件。

Zhao Mengwei, Hans Ahrendt, Klaus Wemmer. K-Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例[J]. Acta Sedimentologica Sinica, 1996, 14(3): 11-21.
Citation: Zhao Mengwei, Hans Ahrendt, Klaus Wemmer. K-Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例[J]. Acta Sedimentologica Sinica, 1996, 14(3): 11-21.
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