山东海阳姜家白垩纪水南组化石的发现及保护

摘要

Jiangjia area is located in the north of Haiyang city in Yantai city of Shandong province.In the process of investigating Paleontologic fossils in Yantai area,a good outcropping section of Cretaceous Shuinan formation has been found.Rcih animal and plant fossils occurred in its shales,such as Yanjiesthe-ria yumenensis,Yanjiestheria longa,Lycoptera sinensis,Coniferopsida,Ginkgopsida and some insect fos-sils.Based on previous method of fossil evaluation and protection,combining with the occurrence horizon, occurrence conditions,the type of the fossils and the protection of the situation,comprehensive quality in-dex of Jiangjia has been calculated.It is regarded that it belongs to key protection area.Finally,according to local natural conditions and engineering effects,the range of the key protection areas has been circled, and reasonable protective countermeasures have been put forward.%姜家位于山东省烟台海阳市北部。在进行烟台地区古生物化石调查的过程中，发现了姜家这一白垩纪水南组良好的露头剖面，在其页岩中赋存丰富的动植物化石，计有玉门延吉叶肢介、长壳延吉叶肢介、中华狼鳍鱼、松柏纲和银杏纲植物化石及昆虫化石。根据前人化石保护评价方法，结合化石的赋存层位、赋存条件、化石类型及保护现状，计算了海阳姜家质量综合指数，认为其属于重点保护区级别；最后根据当地自然情况及工程影响，圈定了保护区范围，并制定了相应的保护措施。