第29卷第3期 2015年6月
代地
电质
现
GEOSCIENCE
Vol. 29
No.3 Jun. 2015
塔北南坡差异构造隆升及其对古岩溶发育的影响
李萌"2，汤良杰12，李宗杰3，甄素静1,2
（1.中国石油大学（北京）油气资潭与探测国家重点实验室，北京102249；2.中国石油大学（北京）盘地与油藏研究中心，
北京102249；3.中国石化西北油田分公司，新疆乌鲁木齐830011）
摘要：利用平衡剖面恢复法，研究了塔北南坡各次级单元构造演化的时空差异性，结合寒武系一奥陶系储层不整合面的发育特征，进一步探讨差异隆升过程对古岩溶尤其是表生岩溶发育的影响。研究结果表明：英买力凸起和库尔勒鼻凸形成于加里东中期旱幕，至燕山晚期基本定型；构造隆升对应了加里东中期早幕一燕山中期的岩溶作用，岩溶持续时间长、溶蚀作用强烈，但古岩溶也在长期暴露过程中遭到剥蚀。阿克库勒凸起和草潮凹陷则形成于加里东中期I幕，定型于印支期；构造隆升时间与加里东中期1幕一海西晚期的岩溶作用相对应，抬升暴露适度，有利于大规模岩溶的形成和保存。哈拉哈塘凹陷形成于加里东中期幕，海西晚期已基本定型，对应加里东中期I幕和Ⅲ幕的岩溶作用，表生岩溶作用的影响相对较弱。
关键词：塔北南坡；构造隆升；时空差异；暴露溶蚀；岩溶发育特征
中图分类号：P542
文献标志码：A
文章编号：10008527(2015)03068408
InfluenceofDifferentialTectonicUpliftonKarstDevelopment
in the Southern Slopeof Tabei Uplift
LI Meng-2, TANG Liang-jie'-2, LI Zong-jie', ZHEN Su-jing"-2
(1. State Key Laboratory of Perroleum Resotres and Proupecting, China Unisersity of Petroleum, Beijing102249, China;
2. Besin & Resenoir Research Center, China Unitersity of Petroleum, Bejing102249, China;
3. Northaest Oil/ield Company, SINOPEC, Urumgi, Xinjiang 830011, China)
Abstract: The temporal and spatial variations of sub-structural units in the southerm slope of Tabei uplift were analyzed by using balanced section technology, and then the control of differential evolution on ancient karstifi-cation, especially on epigenic karstification was discussed combined with the analysis of Cambrian-Ordovician unconformity types, The result indicated that Yingmaili uplift and Halahatang sag were being formed in the early episode of Middle Caledonian period and formed in Late Yanshanian period corresponding to the early episode of Middle Caledonian-Middle Yanshanian karstification, which has the characteristics of long duration, strong dis-solution and erosion. Akekule uplift and Caohu sag were being formed in the episode I of Middle Caledonian period and formed in Indosinian period corresponding to the early episode of Middle Caledonian-Late Hercynian karstification, which has the characteristics of moderate exposure and good condition for karst formation and con-servation. Halahatang sag was being formed in the episode I of Middle Caledonian period and formed in Late Hercynian period corresponding to the episode I and episode III of Middle Caledonian karstification, which has the characteristics of relatively weak erosional dissolution.
收稿日期：2014-1117；改回日期：201503-20；责任编辑：福令枝。
基金项目：国家重点基础研究发展计划项目（2012CB214804，2005CB422107）；国家自然科学基金项目（41172125，40972090）；
图家科技重大专项项目（2011ZX05002-003-001，2011ZX05029002，2011ZX05002006007HZ）；中国石油化工股份有限公司项目（P11086）；中国石油化工股份有限公司西北油田分公司项目（KY2012-S-051)。
作者简介：李萌，男，博士研究生，1984年出生，构造地质学专业，主要从事含油气盘地构造研究工作。
Email;limeng, juwen@163.com。
通信作者：汤良杰，男，教授，博士生导师，1957年出生，构造地质学专业，主要从事含油气盆地构造分析研究。
Email; tanglj@ cup. edu. cn