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长石碎屑
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  detrital feldspar
     There are many unstable components containing detrital feldspar, lithic fragments and so on. Content of potash feldspar decreases with increasing burial depth increases (increasing diagenesis) and gradually disappears below a depth of 2700 m in detrital feldspar of sandstone.
     砂岩中发育长石碎屑、岩屑等不稳定组分,而且随着埋藏深度加深(成岩作用加强)钾长石逐渐减少并最终在2700m以下消失。
短句来源
     (2) secondary growth of albite on the original detrital feldspar;
     ②长石碎屑边缘钠长石次生生长;
短句来源
     (3) albite crystallization with detrital feldspar solution.
     ③与长石碎屑溶解伴生的新生钠长石作用。
短句来源
  “长石碎屑”译为未确定词的双语例句
     ON STAIN METHOD FOR DISTINGUISHING QUARTZ AND FELDSPAR DEBRIS
     关于石英、长石碎屑颗粒的染色方法
短句来源
     Selecting the potash feldspar clast perpendiular to a-axis in the detrital section (approximately perpendicular to acute bisectrix), it is easy to determine the interference color of the extinction direction and obtain a clear interference figure.
     在砂薄片上选取近于垂直a轴(近于垂直锐角等分线N_p)的钾长石碎屑,具有易于判定消光位的干涉色,取得清晰的干涉图象。
短句来源
     Part of the feldspar fragments replaced by kaolinite and dissolution of early carbonate cements resulted in loss of strontium is the main reason for the "bleaching" sandstones with low content of strontium.
     部分长石碎屑被高岭石替代和早期碳酸盐胶结物的溶解使一部分锶流失,这是造成“漂白”砂岩中低锶含量的主要原因。
短句来源
     The results of scanning electron microscope (SEM) and energy spectrum analyses displayed that there were many potash feldspar corrosion cavities in detrital sandstone reservoir of the lower Cretaceous in Changling Sag and its edge. The potash feldspar content in the south of Songliao Basin has a positive correlation with porosity of reservoir, while the contents of calcite and ankerite have a negative correlation with porosity of reservoir.
     扫描电镜和能谱分析发现,在松辽盆地南部长岭凹陷及其周缘的白垩系下统碎屑岩储集层中,钾长石溶蚀孔普遍发育,钾长石碎屑含量与储集层孔隙度呈正相关,而方解石、铁白云石等碳酸盐胶结物含量与储集层孔隙度呈负相关。
短句来源
  相似匹配句对
     ON STAIN METHOD FOR DISTINGUISHING QUARTZ AND FELDSPAR DEBRIS
     关于石英、长石碎屑颗粒的染色方法
短句来源
     (2) secondary growth of albite on the original detrital feldspar;
     ②长石碎屑边缘钠长石次生生长;
短句来源
     CLASSIFICATION OF MARINE CLASTIC SEDIMENTS
     海洋碎屑沉积物的分类
短句来源
     FELDSPAR WEATHERING OF RED AND YELLOW SOILS
     红黄壤的长石风化
短句来源
     Summarization of comprehensive utilization of potash feldspar
     钾长石综合利用综述
短句来源
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  detrital feldspar
This siliciclastic sequence is dominated by quartz and detrital feldspar.
      
The bulk grains that serve as substrate to the overlying coatings are mostly quartz and detrital feldspar.
      


The 2V and angles NgΛ⊥(010), NgΛ⊥(001) of potash feldspar are a function of its structural state, which can indicate the degree of order of Si-Al in T_1 tetrahedron, of great geological significance. Selecting the potash feldspar clast perpendiular to a-axis in the detrital section (approximately perpendicular to acute bisectrix), it is easy to determine the interference color of the extinction direction and obtain a clear interference figure. Such optical data can be accurately determined in the universal stage...

The 2V and angles NgΛ⊥(010), NgΛ⊥(001) of potash feldspar are a function of its structural state, which can indicate the degree of order of Si-Al in T_1 tetrahedron, of great geological significance. Selecting the potash feldspar clast perpendiular to a-axis in the detrital section (approximately perpendicular to acute bisectrix), it is easy to determine the interference color of the extinction direction and obtain a clear interference figure. Such optical data can be accurately determined in the universal stage by conoscopic method and four-axis method. This procedure is easy to operate with reliable accuracy (with an error of less than 2 degrees), which is proved to be an excellent optical method, worthy spreading.

钾长石的2V和N_g∧⊥(010)、N_g∧⊥(001)的夹角是结构状态的函数,能够表明T_1四面体上Si-Al的有序度,具有重要的地质意义。在砂薄片上选取近于垂直a轴(近于垂直锐角等分线N_p)的钾长石碎屑,具有易于判定消光位的干涉色,取得清晰的干涉图象。在费氏台上用锥光法和四轴法能精确测定这些光学数据。此方法操作简便,精度可靠(误差在2°以内),是一种好的光学方法,值得推广。

The detrital section method for measuring structural state of potash feldspar on the universal stage is developed on the basis of thickening the thin section and selecting the section perpendicular to a-axis and also according to the fact that this mineral has well-developed(100),(110) and(201) planes. The stability and repeatability of the measurements are quite good.Potash feldspar detrituses in the size of 0.2-0.3mm are chosen as samples to be measured, from them the detrital section fit for universal stage...

The detrital section method for measuring structural state of potash feldspar on the universal stage is developed on the basis of thickening the thin section and selecting the section perpendicular to a-axis and also according to the fact that this mineral has well-developed(100),(110) and(201) planes. The stability and repeatability of the measurements are quite good.Potash feldspar detrituses in the size of 0.2-0.3mm are chosen as samples to be measured, from them the detrital section fit for universal stage is made up. For the potash feldspar crystals approximately perpendicular to a-axis section, conoscopy or four axis method is used to measure the included angle of 2V and Ng∧⊥(010) or Ng∧⊥(001) and calculate the optical ordering and triclinity.Practice shows that, as the measurement with detrital section method is simple to operate and has reliable precision, it deseryes widespread utilization.

钾长石的2V和Ng∧⊥(010)、Ng∧⊥(001)的夹角是其结构状态的函数,其具有重要的地质意义。本文提出的费氏台砂薄片法所选取的钾长石碎屑近于垂直a轴(即近于垂直光率体的锐角等分线Np),具有易于判定消光位的干涉色和图象清晰的干涉图。在费氏台上用锥光法和四轴法能精确地测定这些光学数据。该方法操作简便、精度可靠,重复或易人求测误差均可控制在2°以内。大量实测结果表明它确是一种好的光学方法。

Surface textures of feldspars from five weathered granite crusts of the subtropical and tropical areas in the south of China are studied with scanning electron microscope,transmission electron microscope and other experimental techniques. It is found that dissolution of feldspars during weathering occured primarily at cleavage cracks, twin strations, microfissures and the interface between oikocryst and the inset. As a result of dissolution, distinctive etch pits developed on the weathered feldspar surface....

Surface textures of feldspars from five weathered granite crusts of the subtropical and tropical areas in the south of China are studied with scanning electron microscope,transmission electron microscope and other experimental techniques. It is found that dissolution of feldspars during weathering occured primarily at cleavage cracks, twin strations, microfissures and the interface between oikocryst and the inset. As a result of dissolution, distinctive etch pits developed on the weathered feldspar surface. In addition to the crystallographic natures, the factors affecting formation of surface textures of weathered feldspars include fairly high temperature,plenty of precipitation of the studied areas and indensity of weathering of the mineral.

综合应用扫描电镜、透射电镜等技术手段,研究了我国热带、亚热带地区五个花岗岩风化壳中残留长石的表面结构特征.在风化作用过程中,长石晶体表面发生了显著的不均衡溶蚀,并形成多种富特征性的溶蚀痕迹;双晶接合面、解理面、条纹长石中的主、嵌晶界面、构造破裂面等部位是长石晶体上优先溶蚀的部位.风化残留长石表面结构特征形成的因素包括长石的结晶学性质、研究区的气温、降水条件及长石晶体被风化的程度.建议在沉积岩成岩作用等研究工作中,应注意陆源长石碎屑表面可能存在的风化溶蚀痕迹对有关研究结果的影响.

 
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