首页|Sedimentary Characteristics,Ages,and Environmental Significance of Gravel Deposits and Loess in Shandong,Eastern China:Regional Response to Global Change Since the Last Glacial Period

Sedimentary Characteristics,Ages,and Environmental Significance of Gravel Deposits and Loess in Shandong,Eastern China:Regional Response to Global Change Since the Last Glacial Period

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
Investigation of rarely studied gravel layers found in the loess in Shandong Province,eastern China,reveals the fabric characteristics of two gravel layers(G1,G2)and the sedimentary characteristics of loess at the typical and well-preserved Heiyu section(HY),where,to determine the paleoclimatic changes during Marine Isotope Stage 3a.Optically stimulated luminescence dates of the HY formation range from 0.26±0.02 ka to 39.00±2.00 ka.In addition,the ages of G1 and G2 were estimated using the Bayesian model to be 39.60-40.50 and 29.00-29.50 ka.G1 and G2 are mainly composed of fine and medium gravel,both of which were subangular to subrounded limestone,with gravel directions to NE and E.The average flow velocity,average depth,and flood peak flow of G1 are 1.10 m/s,0.49 m,and 37.04 m3/s,respectively,calculated using the flow energy method,whereas those of G2 are 0.98 m/s,0.38 m,and 18.38 m3/s,respectively.Analysis of climate proxy indices show that the sedimentary environment of the gravel and loess in HY might be a regional response to global change.

paleoenvironmentgeochronologygravel layersedimentologyPleistoceneShandong Province

WANG Min、KONG Fanbiao、KONG Xianglun、CHEN Haitao、WANG Jiawei、MIAO Xiaodong、JIA Guangju、HAN Mei、XU Shujian

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Department of Geography and Tourism,Qilu Normal University,Jinan 250014,China

School of Geography and Environment,Shandong Normal University,Jinan 250014,China

Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection,Linyi University,School of Resources and Environment,Linyi,Shandong 276005,China

College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266590,China

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School of Geography and Environment,Shandong Normal UniversityNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

414721594117216041371537

2024

10.1111/1755-6724.15152

地质学报(英文版)
中国地质学会

地质学报(英文版)

CSTPCD
影响因子：1.414
ISSN：1000-9515
年,卷(期)：2024.98(2)
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