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通过边缘相分析、地层接触关系分析、古水流系统分析和构造格架分析并结合侏罗系残余露头与残余沉积体系分布 ,对早—中侏罗世和中—晚侏罗世的原始沉积区进行了恢复 ,发现早—中侏罗世的沉积范围要比现今残存的沉积范围大得多 ,而中—晚侏罗世的沉积范围与现今残存的沉积范围相比则变化不大。
Based on the analysis of marginal facies, stratigraphic contact, palaeo-current system analysis and tectonic framework analysis, combined with the distribution of Jurassic residual outcrops and remnant sedimentary system, the sedimentary facies of Early-Middle Jurassic and Middle-Late Jurassic After the restoration, it is found that the depositional range of Early-Middle Jurassic sediments is much larger than that of present-day sedimentary deposits, while the depositional range of Middle-Late Jurassic changes little from that of present-day sedimentary deposit.