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一、前言 新疆莎车地区上白垩统出露完整,为一套海相与泻湖相沉积,含丰富的孢粉及海相横裂甲藻与疑源类,因限于篇幅,本文着重讨论横裂甲藻与疑源类,孢粉部份另行发表。 近十多年来,国外已广泛用横裂甲藻与疑源类作为划分地层、寻找石油和探讨古地理的重要手段之一。白垩纪海相横裂甲藻,我国还是首次报道,本文将通过对上白垩统英吉沙群浮游横裂甲藻及疑源类组合的分析,来探讨其地质时代、地层划分及古生态特点。 文中共鉴定了横裂甲藻42个属、93个种,其中描述了贝个新属、14个新种、1个新变种。疑源类鉴定7个属,6个种。
I. Preface The Upper Cretaceous of Shache region in Xinjiang is completely exposed. It is a marine facies and lagoon facies sedimentation, rich in spore powder and marine cross-lobe dinoflagellates and suspected sources. Due to space limitations, this article focuses on the discussion of transverse cracks Dinoflagellates and suspected sources, sporopolleny part separately published. In the past decade or so, foreign researchers have widely used the dinoflagellates and suspected sources as one of the important means to divide oil and explore paleogeography. Cretaceous marine mealybugs, China is the first report, this article will be on the Cretaceous Yingjisha group planktonic algae and the combination of suspected source category to explore its geological age, stratigraphic division and paleoecology. In this paper, 42 genera and 93 species of Acipenaeus were identified in this paper, which described the genus Bombycis, 14 new species and 1 new variety. Identification of suspected genus 7 genera and 6 species.