%0 Journal Article
%T 豫西下二叠统太原组遗迹化石与古氧相的响应特征*&lt;br&gt;Responding characteristics between ichnofossils and palaeo-oxygen facies in the Lower Permian Taiyuan Formation of western Henan Province
%A 宋慧波
%A 毕瑜珺
%A 胡斌
%J 电子科技大学学报
%D 2017
%R 10.7605/gdlxb.2017.04.051
%X 基于对豫西禹州和焦作地区下二叠统太原组中的遗迹化石组成与产状特征的研究,以及对不同颜色Zoophycos潜穴充填物中碳氧同位素和微量元素含量的测试分析,取得成果如下: (&lt;em&gt;1&lt;/em&gt;)灰白色充填物中δ&lt;em&gt;&lt;sup&gt;13&lt;/sup&gt;C&lt;/em&gt;值较低,主要介于&lt;em&gt;-2‰~-4‰&lt;/em&gt;之间;灰色充填物中δ&lt;em&gt;&lt;sup&gt;13&lt;/sup&gt;C&lt;/em&gt;值大多在&lt;em&gt;-0.8‰~-2‰&lt;/em&gt;之间。二者的&lt;em&gt;V/&lt;/em&gt;(&lt;em&gt;V+Ni&lt;/em&gt;)值均小于&lt;em&gt;0.46&lt;/em&gt;,&lt;em&gt;Ce/La&lt;/em&gt;值均小于&lt;em&gt;1.5&lt;/em&gt;。反映其为富氧相,即氧化环境。(&lt;em&gt;2&lt;/em&gt;)红褐色充填物中δ&lt;em&gt;&lt;sup&gt;13&lt;/sup&gt;C&lt;/em&gt;值一般在&lt;em&gt;-0.2‰~-0.9‰&lt;/em&gt;之间,&lt;em&gt;V/&lt;/em&gt;(&lt;em&gt;V+Ni&lt;/em&gt;)值大于&lt;em&gt;0.46&lt;/em&gt;,反映其为贫氧相,即弱还原环境。(&lt;em&gt;3&lt;/em&gt;)黑色充填物中δ&lt;em&gt;&lt;sup&gt;13&lt;/sup&gt;C&lt;/em&gt;值最高,多数在&lt;em&gt;0.2‰~1.6‰&lt;/em&gt;之间,&lt;em&gt;Ce/La&lt;/em&gt;值大于&lt;em&gt;1.8&lt;/em&gt;,反映其为厌氧相,即还原环境。综合分析上述特征,提出了&lt;em&gt;3&lt;/em&gt;种古氧相(富氧相、贫氧相和厌氧相)的遗迹化石响应关系及其形成的沉积背景模式。这一研究成果可为精细分析豫西下二叠统太原组碳酸盐岩的沉积环境演变规律提供直观的生物遗迹识别标志。&lt;br&gt;On the basis of the composition and appearance study of the ichnofossils in the Lower Permian Taiyuan Formation of Yuzhou and Jiaozuo area of western Henan Province,as well as tests and analyses of the &lt;em&gt;δ&lt;/em&gt;&lt;sup&gt;13&lt;/sup&gt;C,&lt;em&gt;δ&lt;/em&gt;&lt;sup&gt;18&lt;/sup&gt;O and trace elements in the four kinds of different color fillings of &lt;em&gt;Zoophycos&lt;/em&gt; burrows,the results were obtained as follows: (1)The &lt;em&gt;δ&lt;/em&gt;&lt;sup&gt;13&lt;/sup&gt;C value ranges between -2‰ and -4‰ in the off-white fillings and between -0.8‰ and -2‰ in the gray fillings. In these two kinds of color fillings,the V/(V+Ni) value is less than 0.46,and the Ce/La value is less than 1.5. These data indicate that the sedimentary environment is characterized with an aerobic condition. (2)The &lt;em&gt;δ&lt;/em&gt;&lt;sup&gt;13&lt;/sup&gt;C value ranges generally between -0.2‰ and -0.9‰,and the V/(V+Ni)value is more than 0.46 in the brown fillings,which reflect a dysaerobic sedimentary environment. (3)The &lt;em&gt;δ&lt;/em&gt;&lt;sup&gt;13&lt;/sup&gt;C value ranges mostly between 0.2‰ and 1.6‰,and the Ce/La value is more than 1.8 in the black fillings,which reflect an anaerobic sedimentary environment. Based on the comprehensive analysis of above mentioned characteristics,we suggested the responding characteristics model between the three kinds of palaeo-oxygen facies(aerobic,dysaerobic and anaerobic facies)and ichnofossils and their sedimentary setting. This research result can provide some intuitional ichnofossil marks to identify sedimentary environment changes in the
%K 遗迹化石
%K 古氧相
%K 沉积环境
%K 下二叠统
%K 太原组
%K 豫西地区
%K &lt
%K br&gt
%U http://manu22.magtech.com.cn/gdlxb/CN/abstract/abstract9675.shtml