Abstract
We have carried out core drilling within the Kathmandu Basin and have investigated on the cores and surface exposures from various viewpoints and methods (PKL project). The reconstruction of paleoclimatic and paleoenvirnmental variations recorded in the Kathmandu Basin sediments is one of many purposes of our project. In this paper, we report the paleoclimatic and paleoenvironmental information in the Kathmandu Basin deduced from the clay mineral data.The sedimentation rate of the upper part of the RB core tends to vary, depending on the dry-wet condition in the Kathmandu basin. The variation of the hydrolysis condition inferred from the illite crystallinity indices were congruous with the variation of d18O GISP2. These results show that the major climatic variations in the Kathmandu Basin during the last 40 kyr were closely related to global climate.
