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札达盆地新近系上新统一第四系下更新统地层可划分为下更新统香孜组1x)、新近系上新统古格群(N2gg),其中后者又细分为上新统札达组(N22z)(Qp1t),属地堑型湖盆沉积,主要发育冲洪积相、冰缘相、冰湖和上新统托林组(N21t)、持续裂陷相、湖相及河流相。札达盆地的构造演化经历了早期裂陷(N21x)、稳定隆升(Qp2f)和强烈快速隆升(Qp3～Qh)等5个2z)、湖盆外泻(Qp(N2阶段。盆地南北两侧数条相向正断层的活动性控制着该区的沉积相展布格局:断层活动强烈时,湖盆水域扩大,湖水加深,主要发育深湖—半深湖沉积,断层活动减弱时,水体变浅或干涸,湖盆被充填,主要发育河流相、冲洪积沉积。第四纪以来,随着青藏高原的快速隆升,札达盆地周缘高山区冰川活动加剧,主要发育冰缘相和冰湖相。
The Neogene-Quaternary Lower Pleistocene strata in the Zandaoda Basin can be divided into the Lower Pleistocene Aixi Formation (Ix), the Neogene Guggenomics (N2gg), of which the latter is subdivided into the Ulsan Up to N22z (Qp1t), it belongs to the graben-type lake basin. It mainly develops alluvial-accumulating sedimentary facies, ice margin facies, glacial lake and the Upper Pleistocene Tomlin Formation (N21t), persistent rift facies, lacustrine facies and fluvial facies . The tectonic evolution of the Zanda Basin has experienced five major periods of early rifting (N21x), stable uplift (Qp2f) and intense rapid uplift (Qp3 ~ Qh) The activity of lateral facies normal faults controls the distribution of sedimentary facies in the area. When the fault activity is intense, the lake waters expand, the lake deepens, and the deep lacustrine-semi-deep lakes sediment is mainly developed. When the fault activity weakens, Shallow or dry, the lake basin is filled, the main development of the river facies, alluvial deposition.Quaternary, with the rapid uplift of the Qinghai-Tibet Plateau, the zanda highland surrounding glacier activity intensified, the main development of ice edge and ice Lake phase.