【摘要】 以大量的野外工作为基础,辅以地球化学研究,确定了西峡盆地普遍存在地震滑塌岩块,并可分为同沉积期和成岩期2种,同沉积期地震滑塌岩块主要表现为同沉积小断裂、同沉积变形构造等;成岩期地震滑塌岩块主要表现为沿断裂的上盘砾岩的"涂抹"和成岩期的方解石擦磨晶体,以及由断裂(裂隙)所围限的不同于周围岩性的块体.对地震滑塌岩块的研究不仅可以为恐龙蛋的埋藏作用提供信息,而且也可以为研究古地理和古构造背景提供参考.更多还原

【Abstract】 Based on a large amount of field work,supplemented by geochemical studies,it determined that the seismic slump rock block widely exists in Xixia Basin,which can be divided into synsedimentary and diagenetic phase.The synsedimentary seismic slump rock block mainly manifested syndepositional faults and synsedimentary deformation structure;the diagenetic period of seismic rock mass slump mainly manifested conglomerate’s"smear"phenomenon along the hanging wall of faults,diagenetic phase of calcite crystals rub wear and the block confining by a fault(fracture) which is different from the surrounding rock.The study of the seismic slump rock block can not only provide information for the dinosaur eggs buried,but also for the researches of paleoearthgqacke and ancient tectonic setting.更多还原