| 东北平原东部天恒山钻孔的粒度特征及其对地层划分的指示 |
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| 引用本文： | 詹涛,曾方明,谢远云,杨业,马永法,葛俊逸,易亮,迟云平,康春国,姜侠,张俊,娄本军,周鑫,邓成龙.东北平原东部天恒山钻孔的粒度特征及其对地层划分的指示[J].地质力学学报,2018,24(4):515-521. |
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| 作者姓名： | 詹涛 曾方明 谢远云 杨业 马永法 葛俊逸 易亮 迟云平 康春国 姜侠 张俊 娄本军 周鑫 邓成龙 |
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| 作者单位： | 黑龙江省第二水文地质工程地质勘察院;中国科学院地质与地球物理研究所岩石圈演化国家重点实验室;中国科学院青海盐湖研究所;哈尔滨师范大学地理科学学院;中国科学院古脊椎动物与古人类研究所;同济大学海洋地质重点实验室;哈尔滨学院地理与旅游学院;黑龙江省地质矿产局;中国科学技术大学地球和空间科学学院 |
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| 基金项目： | 国家自然科学基金项目（41301040，41601200）；黑龙江省国土资源科研类项目（201407）；国土部公益性科研专项（201311137） |
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| 摘 要： | 东北平原东部荒山剖面是我国东北地区的第四纪典型剖面,但针对该剖面的地层划分和成因的研究尚存在不同看法,对其开展详细的粒度特征研究有望对该剖面的地层划分和地层成因提供进一步的认识。通过天恒山(THS)钻孔对该区地层进行高分辨率的粒度特征研究,并与黄土高原典型黄土进行对比。研究结果显示哈尔滨组地层平均粒径、中值粒径以及粒级百分含量等大幅度波动,呈现黄土—古土壤地层旋回变化特征,黄土层粒度粗,古土壤层粒度细,与黄土高原典型第四纪黄土的粒度特征一致。荒山组地层则呈现小幅度波动,沉积动力较稳定。哈尔滨组和荒山组的粒度频率分布、C-M图及粒度参数(平均粒径、标准偏差、偏度、峰度)等特征均存在显著差别,指示二者的沉积动力过程明显不同。基于以上粒度特征,结合沉积相特征和已有划分方法,THS钻孔中—晚更新世地层自上而下可划分为哈尔滨组和荒山组,并将哈尔滨组地层判定为风成堆积,将荒山组地层判定为河湖相沉积。
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| 关 键 词： | 东北平原 荒山剖面 哈尔滨组 荒山组 粒度 |
| 收稿时间： | 2017/6/26 0:00:00 |
| 修稿时间： | 2018/2/23 0:00:00 |
GRAIN SIZE CHARACTERISTICS OF TIANHENGSHAN CORE AND THEIR INDICATIONS FOR STRATIGRAPHIC DIVISION IN THE EASTERN PART OF THE NORTHEAST PLAIN OF CHINA |
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| ZHAN Tao,ZENG Fangming,XIE Yuanyun,YANG Ye,MA Yongf,GE Junyi,YI Liang,CHI Yunping,KANG Chunguo,JIANG Xi,ZHANG Jun,LOU Benjun,ZHOU Xin and DENG Chenglong.GRAIN SIZE CHARACTERISTICS OF TIANHENGSHAN CORE AND THEIR INDICATIONS FOR STRATIGRAPHIC DIVISION IN THE EASTERN PART OF THE NORTHEAST PLAIN OF CHINA[J].Journal of Geomechanics,2018,24(4):515-521. |
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| Authors: | ZHAN Tao ZENG Fangming XIE Yuanyun YANG Ye MA Yongf GE Junyi YI Liang CHI Yunping KANG Chunguo JIANG Xi ZHANG Jun LOU Benjun ZHOU Xin and DENG Chenglong |
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| Institution: | The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, Harbin 150030, Heilongjiang, China;State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China,Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, Qinghai, China,College of Geographic Science, Harbin Normal University, Harbin 150025, Heilongjiang, China,The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, Harbin 150030, Heilongjiang, China,The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, Harbin 150030, Heilongjiang, China,Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China,State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China,College of Geographic Science, Harbin Normal University, Harbin 150025, Heilongjiang, China,Geography Department, Harbin institute, Harbin 150086, Heilongjiang, China,Heilongjiang Bureau of Geology & Mineral Resources, Harbin 150036, Heilongjiang, China,The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, Harbin 150030, Heilongjiang, China,The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, Harbin 150030, Heilongjiang, China,School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, Anhui, China and State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | Huangshan Profile in the eastern part of the Northeast Plain is a typical Quaternary profile in Northeast China; however, there are different views on the stratigraphic division and stratigraphic origin of this section. A detailed study on its grain size characteristics is expected to provide further insight into the stratigraphic division and stratigraphic origin of the profile. In this paper, high resolution grain size characteristics of the sediments in Tianhengshan (THS) Core were studied and compared with those in typical loess profiles on the Chinese Loess Plateau. The results show that the mean grain size, median grain size and percentage fraction of grain size of Harbin Formation fluctuated widely, with coarser grains in the loess layer and finer ones in the paleosol layer, similar to those in the loess-paleosol sequence on the Chinese Loess Plateau. However, grain size characteristics in Huangshan Formation show small fluctuations, thus indicating relatively stable sedimentary dynamics. The characteristics of grain size, including frequency distribution, C-M diagram and other grain size parameters (mean grain size, standard deviation, skewness and kurtosis) in sediments between Harbin Formation and Huangshan Formation are obviously different, indicating that the sedimentary dynamics of the two groups are different. Based on the above characteristics of grain size, combining sedimentary facies and previous methods of classification, the middle-to late-Pleistocene strata of the THS Core from top to bottom is divided into Harbin Formation and Huangshan Formation, which are determined as aeolian accumulation and fluvial/lacustrine sediment, respectively. |
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| Keywords: | the Northeast Plain Huangshan section Harbin Formation Huangshan Formation grain size |
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