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引用次数: 1
摘要
在爱沙尼亚Kõrgessaare和Haapsalu岩心中研究了最新的沙边腕足动物和几丁质动物。腕足动物区系在Keila区域阶段(RS)逐渐更新，不同于几丁质动物的持久结合。唯一的例外是该阶段的上部，在两段不同的几丁质动物的分类组成和Dalmanella kegelensis腕足动物群的两个种级分类群的出现。D. kegelensis sensu lato被认为是Keila RS生物带的一个指数分类单元，它连接了爱沙尼亚北部和俄罗斯西北部的腕足动物区系。在后者，盖覆有D. kegelensis群腕足动物的白云质和硅质泻湖及潮外沉积被认为是Keila RS最年轻的部分。
Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia
The latest Sandbian brachiopods and chitinozoans were studied in the Kõrgessaare and Haapsalu drill cores of Estonia. The brachiopod fauna shows a gradual renewal through the Keila Regional Stage ( RS ) , differently from the rather persistent association of chitinozoans. An exception is the uppermost part of the stage, which differs in two sections in the taxonomic composition of chitinozoans and the occurrence of two species-level taxa of the Dalmanella kegelensis brachiopod group. D. kegelensis sensu lato has been considered an index taxon of the biozone in the Keila RS. It links the brachiopod faunas of North Estonia to those in NW Russia. In the latter region, the dolomitic and siliciclastic lagoonal and peritidal deposits overlying the strata with brachiopods of the D. kegelensis group are considered the youngest part of the Keila RS.
期刊介绍：
The Estonian Journal of Earth Sciences is an international scientific open access journal published by the Estonian Academy of Sciences in collaboration with the Tallinn University of Technology, the University of Tartu, the Estonian University of Life Sciences and the Talllinn University.
The journal publishes primary research and review papers in the English language. All articles are provided with short Estonian summaries.
All papers to be published in the journal are peer reviewed internationally.
The journal is open for publications in all fields of Earth sciences, including besides different geological sensu lato disciplines, also geography and oceanography having certain connection with our part of the world, North Europe and the Baltic area in particular.
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