兴城实习报告 - 副本 - 副本

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1、目录第一章绪言·····················································1第二章地层·····················································32-1.太古宙片麻状花岗岩······································32-2.中、新元古界长城系、蓟县系、青白口系·····················32-3.下古生界···············································

2、··72-4.上古生界·················································82-5.中生界···················································9182-6.新生界···················································12第三章侵入岩变质岩············································133-1.侵入岩···························

3、························133-2.变质岩···················································15第四章地质构造·················································174-1.褶皱构造·················································174-2.断裂构造·················································18184-3.海洋动

4、力地质作用·········································20第五章矿产·····················································21第六章地质发展简史·············································22第七章结语·····················································24参考文献与资料········································

5、··········2418第一章绪言吉林大学兴城地学野外教学基地位于辽宁省兴城市东部钓鱼台海滨的新立屯，距市中心约8km.兴城市位于辽宁省西南部，行政建制为县级市，行政区划隶属于辽宁省葫芦岛市。葫芦岛市辖区地处华北与东北两大经济协作区的交汇地带，东临锦州，北靠朝阳，西连秦皇岛市山海关，南濒渤海辽东湾。在区域地貌上，兴城——葫芦岛地区属于辽西山地黑山丘陵东部边缘的海滨丘陵。海拔一般为20~500m，相对高差200~350m。兴城市属于温暖带半湿图1-1兴城教学基地地理位置图1．加粗长方形黑框区域为1∶20万地形图K－51－（31）（兴城

6、幅）和K－51－（25）（锦西幅）；2．基本实习区1∶5万地形图、地质图合幅：A.杨家杖子等4幅合幅；B.葫芦岛市等2幅合幅；C.兴城市等4幅合幅润气候区，气候温和，干湿相宜，故而农业较发达，主要农作物为玉米，花生，小麦,经济作物有棉花、烤烟、麻类等。丘陵地区适宜林果生产，以苹果和白梨为主，被国家农业部定为优质果生产基地。兴城——葫芦岛地区交通发达，设施完备，公路、铁路、海运、空运形成了立体化交通网。京哈铁路高铁、京哈公路和高速公路以及环渤海公路纵贯全境。吉林大学兴城地学教学基地就位于环渤海公路1207.8km处。详细情况见（图1-1）

7、。兴城地区较系统的区域地质研究工作是1966~1967年由辽宁省地质局地质测量队完成的1∶20万区域地质调查K-51-(25)(锦西幅)和K-51-（31）（兴城幅），1983年辽宁省地质局区域地质调查队重新对1∶20万锦西幅和兴城幅地质图进行修编，并且编写了详细的区域地质调查报告。后来，20世纪80年代编制的《东北地区区域地层表》、1989年编写的《辽宁省区域地质志》、1997年编写的《辽宁省岩石地层》等辽宁省区域地质系列性总结著作对本区的区域地层、岩浆活动及构造有所概略记述。1998~2003年辽宁省地矿局有关地质队还进行过区内数幅

8、1∶5万矿产地质调查工作。2010~2012年，吉林大学地质调查研究院承担中国地质调查局“辽宁1∶25万葫芦岛市（K51C004001）幅区调修测”项目，对调查区内基础区域地质特征进行了全面总结研究。本次实