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以贵州紫云晚二叠世碳酸盐台地边缘礁为例 ,运用高频层序地层学原理和方法 ,精细地划分了紫云礁层序的各级单元 ,并对其内部沉积构成进行了详细研究 ,探讨海平面升降变化对礁体生长的控制 .研究结果表明 ,晚二叠世紫云礁复合体为发育在台地边缘坡折带的一个三级层序 ,由 1 3个准层序组成 ,并可识别出低位、海侵 (包括早期海侵和晚期海侵 )、高位(包括早期高位和晚期高位 ) 3个体系域 .低位期的下切谷充填和边缘坡折带碳酸盐台地的暴露、海侵期和高位期礁的 3种生长方式的增生及每种生长方式的特定成因相的形成 ,揭示了海平面升降的不同时期 (低位期、海侵期、高位期 )的沉积响应及其周期性变化对礁体生长的控制 .晚期高位体系域礁体中的次生孔隙带的发现为礁储层地层学研究提供了基础
Taking the Late Permian carbonate platform marginal reef in Ziyun, Guizhou as an example, the stratigraphy of high-frequency sequence stratigraphy and method are used to finely divide the units of the sequence of the Ziyun suborder, and the internal depositional structures The results show that the Late Permian Ziyunjiao Complex is a tertiary sequence developed in the slope break of the platform margin and consists of 13 quasi- (Including early transgression and late transgression) and highstands (including early highs and late highs), and lowstand period undercut valleys and marginal slops with carbonate platforms The results show that the three phases of sea level rise and fall (low stage, transgression, high stage) are revealed by the growth of three growth modes and the formation of specific facies of each growth pattern in the transgression and epochs. Responses and Their Cyclical Changes to the Control of Reef Growth The discovery of secondary pore bands in the late highstand system reefs provides a basis for stratigraphic studies of reef reservoirs