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山东省临朐县山旺村的硅藻土中发现过丰富的动植物化石,它的时代为中新世。自1935年杨钟健教授等对该地层进行系统研究和论述以来,山旺地区的硅藻土地层就成为我国中新世标准地层,并命名为山旺组。解放以后,随着硅藻土矿的开采,陆续发现了许多新的珍贵的动植物化石,山旺组地层的研究范围也不断扩大。然而,山旺组的磁性地层学研究却尚未开展,为此,我们对山旺地区的硅藻土地层进行了古地磁研究,本文是这项工作的初步结果。
Shandong Province Linli Xian Shan Wangcun diatomite found in rich flora and fauna, its era for the Miocene. Since 1935, Professor Yang Zhongjian systematically studied and discussed the stratigraphy, the diatomite strata in Shanwang area became the standard stratum of Miocene in our country and was named Shanwang Formation. After the liberation, with the exploitation of diatomite ore, many new and precious fossils of animals and plants were discovered, and the research scope of the Shanwang Formation also expanded continuously. However, the study of the magnetic stratigraphy in Shanwang Formation has not yet been carried out. Therefore, we carried out the paleomagnetic study on the diatomite strata in the Shanwang area. This article is the preliminary result of this work.