During the past decades, the elongated mud belt, 1000 km length, in the inner shelf of the East China Sea (ECS), has been extensively studied. Previous studies mainly focused on the northern part of the mud belt. There are still many arguments on various issues of the mud belt, including the provenance discrimination, the formation mechanism, and its evolution response to climate and environmental changes. In this paper, a borehole acquired from the distal southern mud belt which penetrated the Holocene strata with the collected data was analyzed. According to the parameters of (La/Sm)_UCC versus (Gd/Yb)_UCC and the ternary diagram of smectite-illite-(kaolinite + chlorite), sediments from the top section of Core ECS1601 originated from the Yangtze River since 13.7 ka. Sediments from upper and lower reaches of the Yangtze River can be clearly distinguished by (Gd/Yb)_UCC value. The provenance of the distal mud belt shifted from upper reaches to lower valley since 5 ka and returned to the upper reaches again since 2.5 ka, which was related to the asynchronous evolution of Asian monsoon system and anthropogenic activities. The high sedimentation rates occurring in the distal mud belt between 5 and 2.5 ka were related to the decreased sediment supply of the upper reaches and the strengthened Zhejiang-Fujian Coastal Current (ZFCC) caused by the intensified East Asian Winter Monsoon (EAWM).

在过去的几十年中，对东海（ECS）内陆大陆架上长1000公里的细长泥质带进行了广泛的研究。先前的研究主要集中在泥浆带的北部。关于泥石流带的各种问题，仍然有许多论据，包括物源判别，形成机制及其对气候和环境变化的演变响应。本文利用采集的数据分析了从南部南部泥岩带获取的，贯穿全新世地层的钻孔。根据（La / Sm）_UCC与（Gd / Yb）_UCC的参数以及蒙脱石-伊利石-（高岭石+绿泥石）三元图，ECS1601核心顶部的沉积物始于13.7 ka以来的长江。长江上游和下游的沉积物可以通过（Gd / Yb）_UCC值清楚地区分。远泥带起源于5 ka以来从上游向低谷移动，而自2.5 ka以来又回到上游，这与亚洲季风系统的异步演化和人为活动有关。在5到2.5 ka的远泥带中发生的高沉积速率与上游东亚冬季风（EAWM）增强引起的上游沉积物供应减少和浙福闽沿海海流（ZFCC）增强有关。