| 西昆仑赛力亚克混杂堆积中砂岩块体的主要特点 |
| |
| 引用本文： | 王东安.西昆仑赛力亚克混杂堆积中砂岩块体的主要特点[J].岩石学报,1995,11(1):93-100. |
| |
| 作者姓名： | 王东安 |
| |
| 作者单位： | 中国科学院地质研究所 |
| |
| 基金项目： | 国家自然科学基金,中国科学院共同资助 |
| |
| 摘 要： | 西昆仑赛力亚克混杂堆积由形态、颜色和大小各异的沉积岩块体以及黑色泥质粉砂岩夹灰紫绿色钙质页岩、泥灰岩和层凝灰岩的基质组成。露头上块体和基质界线一般清楚，岩块主要是岩屑石英砂岩、凝灰质杂砂岩、长石质杂砂岩、石英质杂砂岩和碳酸盐岩类等。它们分布受麻礼－康西瓦－木孜塔格构造带的控制，是在残留海沟带，通过碎屑流、重力流的作用形成一套特殊的沉积混杂体。
|
| 关 键 词： | 西昆仑，混杂堆积 |
Sandstone Blocks in The Saliyak Melange of Western Kunlun Mountains |
| |
| Wang Dongan.Sandstone Blocks in The Saliyak Melange of Western Kunlun Mountains[J].Acta Petrologica Sinica,1995,11(1):93-100. |
| |
| Authors: | Wang Dongan |
| |
| Abstract: | The Saliyak melange consists of dark-gray to black muddy and silty microclastic rock with intercalation of grayish purple and grayish green calcareous and muddy shale, marl and tuff. The melange contains rock blocks of various colores, sizes and shapes. The big blocks sare of hundreds metres long and tens meters wide and high. The rock blocks are mainly the sandstone, sandy conglomerate marl, marble and siliceous tuff etc. In the sandstone block, there are four different kinds: 1)lithic quartz sandstone and quartz sandy conglomerate, 2 ) tuffaceous graywackes, 3 ) feldspathic graywacke, 4 ) quartzic graywacke. This melange is a special set of sedimentary rocks formed under certain tectonic environment. During Early Triassic period, there was a residual sea trench in the southern part of Kunlun terrane. Because of deforming, decomposing, breaking and collapsing of different sedimentary beds in the obducting terrance, gravity flows consisting of fragments and blocks of rocks nowed into the trench, thus forming the set of melange with deep-water sediments. |
| |
| Keywords: | Western Kunlun Mountians Melange |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《岩石学报》浏览原始摘要信息 |
| 点击此处可从《岩石学报》下载免费的PDF全文 |
|
