Paleokarstic water tables and their control on reservoirs in Ordovician Yingshan Formation, Tazhong Area, Tarim Basin, NW China

Haizhou QU,Maoyao LIU,Yunfeng ZHANG,Zhenyu WANG,Zhenghong ZHANG,Shiyin LI,Xingliang DENG

</td> </tr> <tr> <td style="text-align: center;color:#fff;" bgcolor="#00c2de"><strong>Fig. 6.</strong> <b>Characteristics of karst fabrics in horizontal underflow zone below second-stage water table in different karst paleogeomorphic units. (a), (b), (c) Caverns with diameter reaching meter level, near horizontal dissolved fractures cutting early-stage high-angle dissolved fractures, cystic dissolved vugs, and near horizontal dissolved fractures developed in second-stage horizontal underflow zone in karst highland; the diameters of caverns in (a), and (b) were 2.5 m, and 1.4 m, respectively; (d), (e), (f) Caverns with slight smaller diameters, ranging from 0.3 m to 1.4 m, near horizontal dissolved fractures cutting early-stage high-angle dissolved fractures, cystic dissolved vugs and near horizontal dissolved fractures in second-stage horizontal underflow zone in karst slope.</b><br/></td> </tr> <tr> <td height="5" bgcolor="#fff"></td> </tr> <tr> <td style="text-align: center;" bgcolor="#fff"> <img src="../1876-3804-45-5-873/img_6.png" onload="javascript:DrawImage(this,'800','600');" /> </td> </tr> <tr> <td height="5" bgcolor="#fff"></td> </tr> <tr> <td height="30"></td> </tr> </table> </BODY> <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ extensions: ["tex2jax.js"], jax: ["input/TeX", "output/HTML-CSS"], tex2jax: {inlineMath: [ ['$','$'], ["\$","\$"] ],displayMath: [ ['$$','$$'], ["\\[","\\]"] ],processEscapes: true}, "HTML-CSS": { availableFonts: ["TeX"] }, TeX: {equationNumbers: {autoNumber: ["none"], useLabelIds: true}}, "HTML-CSS": {linebreaks: {automatic: true}}, SVG: {linebreaks: {automatic: true}} }); </script> </html>