青藏高原毗连区巴基斯坦北部野外地质考察记录及科考图集

埃迪卡拉纪与寒武纪早期是地球生命系统演化中的一段最为重要转折期之一，是地史上隐生宙向显生宙的过渡期，也是研究后生动物起源与演化最为热点的时期。目前，全球许多地区都已经围绕这一科学问题开展了大量的古生物学、地层学、地球化学以及地球物理等多学科交叉研究工作。目前，在喜马拉雅构造区，对应这段时间的地层仅在印度次大陆有过少量报道和研究。巴基斯坦北部位于喜马拉雅构造带西部，是青藏高原重要的毗连区之一。巴基斯坦北部地区虽然发育有新元古代至寒武纪早期的地层，但一直以来都缺乏相关的基础研究工作，导致学界难以确定对这段地层的具体时代归属。因此急需做开展相关的研究工作来理清该地区埃迪卡拉纪至寒武纪早期的沉积序列、生物地层以及化学地层，并与同期其它地区的地层进行比对，为今后的深入研究建立时间框架。本次考察主要集中对Hazara盆地的几个剖面（Sikhar Mountain、Tarnawai Village、Salhad Village、Abbottabad Height、Sobangali、Neelor Village以及Pindkhan Khel）做了详细的岩石地层、古生物以及地球化学样品野外记录与采样工作，确定Hazara盆地有较为连续的埃迪卡拉纪至寒武纪早期的地层记录。

The Ediacaran and Early Cambrian periods constitute one of the most pivotal transition intervals in the evolution of Earth's life system, marking the shift from the Cryptozoic Eon to the Phanerozoic Eon in Earth's geological history, and representing the most intensely researched interval for the origin and early evolution of metazoans. To date, extensive multidisciplinary studies combining paleontology, stratigraphy, geochemistry and geophysics have been conducted worldwide to investigate this scientific topic. At present, strata corresponding to this time interval in the Himalayan Tectonic Domain have only been rarely reported and studied in the Indian subcontinent. Northern Pakistan, situated in the western segment of the Himalayan tectonic belt, is one of the key adjacent regions of the Qinghai-Tibet Plateau. Although Neoproterozoic to Early Cambrian strata are well-exposed in northern Pakistan, relevant foundational research has long been scarce, rendering it difficult for the academic community to confirm the exact chronological attribution of these strata. Consequently, it is imperative to launch relevant studies to clarify the sedimentary succession, biostratigraphy and chemostratigraphy of the Ediacaran to Early Cambrian strata in this region, and to correlate them with coeval strata in other regions globally, thereby establishing a robust chronostratigraphic framework for subsequent in-depth research. This field investigation primarily performed detailed field logging and sampling of lithostratigraphic, paleontological and geochemical specimens from multiple sections within the Hazara Basin, namely Sikhar Mountain, Tarnawai Village, Salhad Village, Abbottabad Height, Sobangali, Neelor Village and Pindkhan Khel, and confirmed that the Hazara Basin preserves relatively continuous Ediacaran to Early Cambrian stratigraphic records.