Field survey of the Linzhou Basin, Lhasa, Tibet

In mid-July 2021, Associate Professor Yi Zhiyu from the School of Atmospheric Sciences, Sun Yat-Sen University led master students Liu Yushu, Wang Tianyue, Yang Silin and Peking University doctoral student Zhao Qian to the Linzhou Basin in Lhasa, Tibet, for a 20-day field geological survey with a cumulative journey of 3,000 kilometers.
The target area of the investigation is the Linzhou Basin, Linzhou County, Lhasa City, which is located in the southeastern margin of the Lhasa block and belongs to the Gangdise-Nyainqentanglha Plate and the middle - eastern segment of the Gangdise continental margin volcanic-magmatic arc. This expedition mainly collects samples of volcanic rocks, volcanic weathered crusts and sedimentary rocks from the Late Cretaceous to Early Paleogene, aiming to determine the initial collision between India and the Asian continent and its coupling with climate change.
Before the field investigation, the regional geological background of the study area was comprehensively analyzed based on the literature data and regional geological survey reports on the geological characteristics of the Dianzhong Formation in the Linzhou Basin. During the field investigation, a detailed investigation was carried out on the macroscopic characteristics, scale, occurrence and contact relationship with the surrounding strata of the field output in the study area, and several samples were collected, which provided valuable samples for the follow-up scientific research work.

field work records

The working area of each team in this scientific expedition is an alpine and anoxic area with an average altitude of 4,000 meters. The scientific investigation is difficult, but the scientific expedition personnel are willing to do so. Even if the weather is cold, they always maintain the enthusiasm of the field inspection, ensure the quality of work, and complete the task successfully.
Tibet is a holy place on earth. The beautiful scenery of Tibet and field activities outside of work also provided additional beauty and fun for this Tibet expedition.

wonderful moment of field trip