THE GEOLOGICAL PERIOD AND SEDIMENTATION ENVIRONMENT MANGBANG FORMATION IN TENGCHONG AREA, YUNNAN 腾冲上新统芒棒组地质时代及沉积环境
A positive correlation existed between sedimentation value and average sunshine time in the period from heading to maturation. 沉降值、降落值与此期间的平均日照时数均呈正相关。