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荥阳盆地位于中国黄土高原与黄河洪泛区之间的过渡地带，是研究第四纪环境变化的重要地区.以往有关荥阳地区第四纪环境变化的研究主要集中在其北部的邙山黄土，而荥阳盆地中部沉积物的晚第四纪地层年代学的研究仍然非常匮乏.本文对荥阳盆地中心地区的一个100 m长的岩芯（XBG06孔）的上部40 m的23个样品进行光释光（OSL）测年，以建立其晚第四纪沉积物的年代序列.测年结果显示，钻孔上部40 m的沉积物开始沉积的年代不晚于246 ka. 11个位于钻孔深度～13-40 m的石英OSL样品年龄的都已饱和，应被视为最小年龄.上伏地层的12个OSL年龄表明，钻孔从44.1 ka到18.8 ka的平均沉积速率为0.09 m/ka.在末次冰消期，钻孔从18.8 ka到13.3 ka快速沉积，平均沉积速率为0.78 m/ka.此外，全新世沉积速率低至0.20 m/ka，且全新统无湖相沉积层.本文提供的OSL年代有助于进一步探讨该地区晚第四纪沉积历史与环境变化.
Abstract：Xingyang basin, in the transitional zone between the Chinese Loess Plateau and Yellow River floodplain, is an important area for investigating the Quaternary environmental changes. However, previous studies about environmental changes in the Quaternary focused on loess-paleosol sequences in the northern part of Xingyang Basin, the late Quaternary stratigraphic chronology in the central basin remain rare. In this study, a 100-m-long core(XBG06) was drilled from the central basin and 23 sediment samples was dated by using quartz optically stimulated luminescence(OSL)method to establish the chronological sequence of late Quaternary sediments for the uppermost 40 m. Dating results show that the upper 40 m sediments began to accumulate no later than 246 ka. OSL ages of 11 samples from depths of ～13-40 m are saturated and therefore should be treated as minimum ages. 12 OSL ages from overlying strata suggest that slow deposition occurred from 44.1 ka to 18.8 ka, with an average deposition rate of 0.09 m/ka.During the last deglaciation period, the sediments were deposited rapidly from 18.8 ka to 13.3 ka at average deposition rate of 0.78 m/ka. In addition, the deposit rate of Holocene sediment without lacustrine deposits is as low as 0.20 m/ka. The OSL age provided in this paper is helpful to further study the late Quaternary sedimentary history and environmental changes in this area.
[1]王德甫，王超，王朝栋，等.禹荥泽---古黄河的一块天然滞洪区[J].湖泊科学，2012,24(2):320-326.
[2]李永飞，于革，李春海，等.郑州-荥阳附近全新世湖沼沉积环境及对人类文化发展的意义[J].海洋地质与第四纪地质，2014,34(3):143-154.
[3]李永飞，沈华东，于革，等.20000年来郑州地区湖沼沉积与环境演变研究[J].地层学杂志，2019,43(4):364-375.
[4]刘钧枢.郑州全新世地层初探[J].地层学杂志，1992(2):111-119.
[5]YAN L J,LU P,CHEN P P,et al.Study on the temporal and spatial pattern of prehistoric settlement around Songshan Mountain[J].Quaternary Sciences,2019,39(1):209-217.
[6]JIANG F C,FU J L,WANG S B,et al.Formation of the Yellow River,inferred from loess-palaeosol sequence in Mangshan and lacustrine sediments in Sanmen Gorge,China[J].Geomorphic Processes and Palaeoclimatology in Deserts,2007,175(1):62-70.
[7]QIU F Y,ZHOU L P.A new luminescence chronology for the Mangshan loess-palaeosol sequence on the southern bank of the Yellow River in Henan,central China[J].Quaternary Geochronology,2015,30:24-33.
[8]ZHENG H B,HUANG X T,JI J L,et al.Ultra-high rates of loess sedimentation at Zhengzhou since Stage 7:Implication for the Yellow River erosion of the Sanmen Gorge[J].Monsoon Rivers of Asia,2007,85(3):131-142.
[9]PETERSE F,PRINS M A,BEETS C J,et al.Decoupled warming and monsoon precipitation in East Asia over the last deglaciation[J].Earth and Planetary Science Letters,2011,301(1/2):256-264.
[10]刘畅，冯兆东，冉敏，等.中原地区荥阳盆地末次冰消期以来的气候与环境变化[J].地理学报，2024,79(9):2261-2279.
[11]赵少攀，谢克家，宋睿智，等.郑州地区全新世古湖泊沉积环境特征及演化过程分析--以“荥泽”古湖为例[J].矿产与地质，2023,37(1):95-107.
[12]PETERSE F,MART魱NEZ-GARC魱A A,ZHOU B,et al.Molecular records of continental air temperature and monsoon precipitation variability in East Asia spanning the past 130,000 years[J].Quaternary Science Reviews,2014,83:76-82.
[13]LIANG J,RUSSELL J M,XIE H C,et al.Vegetation effects on temperature calibrations of branched glycerol dialkyl glycerol tetraether(br GDGTs)in soils[J].Organic Geochemistry,2019,127:1-11.
[14]GU Z Y,LIU Z X,XU B,et al.Stable carbon and oxygen isotopes in land snail carbonate shells from a last glacial loess sequence and their implications of environmental changes[J].Quaternary Sciences,2009,29(1):11-22.
[15]WU X H,JIANG F C,XIAO H G,et al.Mangshan loess on China’s Central Plain and its response to tectonic movement and climate[J].Science in China Series D:Earth Sciences,1999,42:465-473.
[16]WANG Y,GUO F,MA L,et al.Millennial-scale summer monsoon oscillations over the last 260 ka revealed by high-resolution elemental results of the Mangshan loess-palaeosol sequence from the southeastern Chinese Loess Plateau[J].Quaternary International,2020,552:164-174.
[17]LAI Z P.Chronology and the upper dating limit for loess samples from Luochuan section in the Chinese Loess Plateau using quartz OSL SAR protocol[J].Journal of Asian Earth Sciences,2010,37(2):176-185.
[18]赖忠平，欧先交.光释光测年基本流程[J].地理科学进展，2013,32(5):683-693.
[19]MURRAY A S,WINTLE A G.Luminescence dating of quartz using an improved single-aliquot regenerative-dose protocol[J].Radiation Measurements,2000,32(1):57-73.
[20]ROBERTS H M,DULLER G A T.Standardised growth curves for optical dating of sediment using multiple-grain aliquots[J].Radiation Measurements,2004,38(2):241-252.
[21]LAI Z P.Testing the use of an OSL Standardised Growth Curve(SGC)for De determination on quartz from the Chinese Loess Plateau[J].Radiation Measurements,2006,41(1):9-16.
[22]GALBRAITH R F,ROBERTS R G,LASLETT G M,et al.Optical dating of single and multiple grains of quartz from Jinmium rock shelter,northern Australia:part I experimental design and statistical models[J].Archaeometry,1999,41(2):339-364.
[23]PRESCOTT J R,HUTTON J T.Cosmic ray contributions to dose rates for luminescence and ESR dating:Largedepths and long-term time variations[J].Radiation Measurements,1994,23(2/3):497-500.
[24]DURCAN J A,KING G E,DULLER G A T.DRAC:dose rate and age calculator for trapped charge dating[J].Quaternary Geochronology,2015,28:54-61.
[25]GU魪RIN G,MERCIER N,ADAMIEC G.Dose-rate conversion factors:update[J].Ancient TL,2011,29(1):5-8.
[26]BRENNAN B J,LYONS R G,PHILLIPS S W.Attenuation of alpha particle track dose for spherical grains[J].International Journal of Radiation Applications and Instrumentation.Part D.Nuclear Tracks and Radiation Measurements,1991,18(1/2):249-253.
[27]GU魪RIN G,MERCIER N,NATHAN R,et al.On the use of the infinite matrix assumption and associated concepts:A critical review[J].Radiation Measurements,2012,778-785.
[28]ZHONG P L,Z魻LLER L,FUCHS M,et al.Alpha efficiency determination for OSL of quartz extracted from Chinese loess[J].Radiation Measurements,2008,43(2/6):767-770.
[29]BUYLAERT J P,VANDENBERGHE D,MURRAY A S,et al.Luminescence dating of old(>70 ka)Chinese loess:a comparison of single-aliquot OSL and IRSL techniques[J].Quaternary Geochronology,2007,2(1/4):9-14.
[30]WINTLE A G,MURRAY A S.A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols[J].Radiation Measurements,2006,41(4):369-391.
[31]CHENG H,EDWARDS R L,SINHA A,et al.The Asian monsoon over the past 640,000 years and ice age terminations[J].Nature,2016,534(7609):640-646.
[32]SPRATT R M,LISIECKI L E.A Late Pleistocene sea level stack[J].Climate of the Past,2016,12(4):1079-1092.
[33]蒋复初，王书兵，赵志中，等.中原邙山黄土与末次间冰期以来古季风特征[J].地质论评，2004(5):554-560.
[34]蒋复初，吴锡浩，孙东怀，等.中原邙山黄土地层[J].地质力学学报，1998,4(4):12-18.
[35]LU H Y,STEVENS T,YI S W,et al.An erosional hiatus in Chinese loess sequences revealed by closely spaced optical dating[J].Chinese Science Bulletin,2006,51:2253-2259.
[36]SHANG Y,PRINS M A,BEETS C J,et al.Aeolian dust supply from the Yellow River floodplain to the Pleistocene loess deposits of the Mangshan Plateau,central China:Evidence from zircon U-Pb age spectra[J].Quaternary Science Reviews,2018,182:131-143.
[37]LU P,LüJ Q,ZHUANG Y J,et al.Evolution of Holocene alluvial landscapes in the northeastern Songshan Region,Central China:Chronology,models and socio-economic impact[J].Catena,2021,197:104956.
基本信息:
DOI：
中图分类号:P597.3;P512.2
引用信息:
[1]胡玉平,宋盈瑾,田若楠,等.黄河中游荥阳盆地钻孔光释光年代及其沉积意义[J].汕头大学学报(自然科学版),2025,40(02):55-66.
基金信息:
国家自然科学基金资助项目（42372213）