北京延庆千家店盆地土城子组古生物化石及古气候沉积环境——延庆地区首次发现疑似恐龙骨骼化石

贺瑾瑞, 焦润成, 南赟, 郝春燕, 张玲玲, 冉淑红, 宋庆伟, 张翊超, 赵丹凝, 程素珍. 北京延庆千家店盆地土城子组古生物化石及古气候沉积环境——延庆地区首次发现疑似恐龙骨骼化石[J]. 地质通报, 2017, 36(8): 1319-1329.
引用本文: 贺瑾瑞, 焦润成, 南赟, 郝春燕, 张玲玲, 冉淑红, 宋庆伟, 张翊超, 赵丹凝, 程素珍. 北京延庆千家店盆地土城子组古生物化石及古气候沉积环境——延庆地区首次发现疑似恐龙骨骼化石[J]. 地质通报, 2017, 36(8): 1319-1329.
HE Jinrui, JIAO Runcheng, NAN Yun, HAO Chunyan, ZHANG Lingling, RAN Shuhong, SONG Qingwei, ZHANG Yichao, ZHAO Danning, CHENG Suzhen. A discussion on Tuchenzi fossils and paleoclimate sedimentary environment in Qianjiadian basin of Yanqing County:Suspected dinosaur bones discovered for the first time in Yanqing, Beijing[J]. Geological Bulletin of China, 2017, 36(8): 1319-1329.
Citation: HE Jinrui, JIAO Runcheng, NAN Yun, HAO Chunyan, ZHANG Lingling, RAN Shuhong, SONG Qingwei, ZHANG Yichao, ZHAO Danning, CHENG Suzhen. A discussion on Tuchenzi fossils and paleoclimate sedimentary environment in Qianjiadian basin of Yanqing County:Suspected dinosaur bones discovered for the first time in Yanqing, Beijing[J]. Geological Bulletin of China, 2017, 36(8): 1319-1329.

北京延庆千家店盆地土城子组古生物化石及古气候沉积环境——延庆地区首次发现疑似恐龙骨骼化石

  • 基金项目:
    中国地质调查局项目《华北地区重要地质遗迹调查(北京)》(编号:1212011220044)、北京市国土局项目《北京市地质遗迹详查评价及保护对策研究》(编号:0747-1361SITCN217)和北京市地质矿产勘查开发局项目《北京市延庆县千家店盆地土城子组孢粉组合特征研究》(编号:京地[2015]148号)
详细信息
    作者简介: 贺瑾瑞(1984-), 男, 硕士, 工程师, 从事区域地质调查及地质遗迹调查。E-mail:laurry@qq.com
  • 中图分类号: Q915.2

A discussion on Tuchenzi fossils and paleoclimate sedimentary environment in Qianjiadian basin of Yanqing County:Suspected dinosaur bones discovered for the first time in Yanqing, Beijing

  • 延庆千家店盆地土城子组底部不整合接触蓟县系雾迷山组,不见顶,主要分为3个岩性段,一段以复成分砾岩、砂砾岩为主;二段以紫红色、黑色薄层泥页岩和泥质粉砂岩为主;三段以复成分砾岩、含砾粗砂岩为主。前人在该盆地二段地层中发现大量动植物化石,有双壳类、叶肢介、昆虫、木化石、恐龙足迹等,但一直没有介形类、孢粉及恐龙化石的相关报道。在化石层位发现疑似"恐龙骨骼"化石,丰富了该区化石种类。通过LA-ICP-MS测年,得出一段底部年龄为157.62±0.69Ma;二段中上部年龄为157.13±0.96Ma。分析认为,千家店盆地土城子组主体沉积时代为晚侏罗世早期,在前人研究的基础上,通过多样的古生物化石来探讨该盆地古气候背景及沉积环境。

  • 加载中
  • 图 1  研究区地质简图

    Figure 1. 

    图 2  延庆千家店盆地土城子组实测剖面

    Figure 2. 

    图 3  疑似“恐龙骨骼”

    Figure 3. 

    图 4  N1样品中锆石阴极发光(CL)照片(30颗)

    Figure 4. 

    图 5  N1样品LA-ICP-MS锆石U-Pb谐和图

    Figure 5. 

    图 6  N2样品中锆石阴极发光(CL)图像

    Figure 6. 

    图 7  N2样品LA-ICP-MS锆石U-Pb谐和图

    Figure 7. 

    表 1  土城子组划分沿革

    Table 1.  Division of Tuchengzi Formation

    命名单位/个人林朝棨[7]长春地院[7]陈晋镳等[8]北京地质学院《华北地区区域地层表·北京分册》[9]《北京市区域地质志》[10]萧宗正等[11]《北京市岩石地层》[1]
    20世纪20—30年代承德1942年辽西1957年辽西1959年冀北赤城1961年1977年北京1991年北京1994年北京1996年北京
    “承德砾岩”或“土城子砾岩”土城子砾岩层正式称为“土城子组”后城组后城组后城组后城组后城组土城子组
    下载: 导出CSV

    表 2  N1样品测试结果

    Table 2.  Dating age of N1 Sample

    测点号含量/10-6同位素比值年龄/Ma
    PbU232th/238U206Pb/238Uerr%207Pb/235Uerr%207Pb/206Pberr%206Pb/238U
    12700.89900.00200.02500.00031.320.16960.00955.620.04910.00265.211592
    22570.63030.00130.02500.00031.200.17030.01257.360.04950.00387.671592
    3*153690.52150.00260.03630.00041.080.32520.00471.430.06500.00091.452302
    4*71690.50430.00250.03670.00041.080.28390.00541.900.05620.00111.872323
    52680.54680.00050.02470.00031.160.16740.01016.010.04910.00306.061572
    62660.68130.00120.02470.00031.110.16790.00573.380.04930.00163.281572
    7113640.62810.00450.02480.00031.040.16730.00331.950.04890.00101.991582
    893340.48610.00270.02450.00031.110.16730.00291.740.04960.00081.621562
    951371.43260.00300.02470.00031.090.16680.00382.250.04900.00112.151572
    10113101.55380.01380.02490.00031.030.16960.00301.780.04930.00081.671592
    1151701.14010.00750.02470.00031.050.16770.00583.430.04920.00173.411572
    1272610.81970.00080.02430.00031.060.16620.00422.500.04950.00122.331552
    1362040.79110.00180.02460.00031.110.16740.00392.320.04940.00102.121572
    1441291.55530.00280.02500.00031.150.16800.00814.830.04870.00224.511592
    1561821.16960.01620.02460.00031.060.16800.00442.610.04940.00122.491572
    16133471.98910.00680.02460.00031.050.16780.00301.780.04950.00081.701572
    172790.64180.00190.02480.00031.110.16670.00965.730.04880.00285.721582
    183851.25510.00180.02480.00031.110.16670.00965.780.04870.00285.831582
    19*162971.37450.00360.03240.00031.040.91430.01992.180.20450.00391.912062
    2051940.76170.00700.02460.00031.070.16860.00422.520.04970.00122.511572
    2182441.11760.00160.02500.00031.200.16930.00492.880.04910.00112.311592
    222580.55220.00150.02500.00031.150.17060.00985.770.04950.00285.741592
    23*162130.44170.00190.06240.00081.271.36120.02061.520.15830.00231.433905
    24*4951.33330.00640.02960.00031.080.24460.01365.570.05980.00335.561882
    252820.61530.00260.02470.00031.130.16800.01096.500.04940.00326.571572
    2682850.61860.00110.02510.00031.030.16940.00422.450.04900.00112.301602
    27*174360.52910.00250.03580.00041.050.27640.00401.430.05600.00071.292272
    2871892.07710.00360.02460.00031.030.16710.00412.460.04930.00112.331562
    292670.67750.00130.02440.00031.140.16650.01468.770.04940.00438.681562
    3061950.64440.00210.02500.00031.050.16830.00362.110.04880.00102.111592
    注:带“∗”的点号为计算年龄加权平均值时剔除的数据
    下载: 导出CSV

    表 3  N2样品测试结果

    Table 3.  Dating age of N2 sample

    测点号含量/10-6同位素比值年龄/Ma
    PbU232th/238U206Pb/238Uerr%207Pb/235Uerr%207Pb/206Pberr%206Pb/238U
    11340.9670570.0057940.02450.00052.030.16610.020712.470.04910.033668.391563
    272011.9256750.0085290.02470.00031.090.16740.00472.820.04920.00142.881572
    3*2560.654990.0015940.03070.00041.240.81410.02673.280.19220.00643.351952
    451771.1607890.0061690.02470.00031.100.16750.00422.510.04910.00122.451572
    52650.9273980.0018310.02430.00031.200.16490.01287.730.04920.00398.011552
    61350.6092410.0030390.02510.00031.260.16810.01227.260.04860.00357.291602
    761671.515350.0019180.02490.00031.090.16800.00462.720.04900.00122.401582
    81430.5986740.0036910.02500.00031.240.16810.01287.620.04880.00387.821592
    941240.6276450.0069580.02500.00031.100.16700.00482.900.04850.00142.971592
    101270.9867610.0055330.02400.00031.270.16870.01076.320.05100.00336.461532
    112711.1451020.004380.02480.00031.080.16870.00784.630.04930.00234.601582
    121400.9183180.0027880.02460.00031.300.16730.01106.580.04930.00326.491572
    1331150.5685350.0016790.02440.00031.100.16730.00724.300.04980.00214.291552
    14*243973.7544630.0415150.03030.00031.010.69690.01211.740.16710.00251.501922
    1541590.7956780.0058630.02460.00031.030.16520.00764.580.04870.00224.511572
    1641251.2474240.0051110.02480.00031.120.16620.01348.090.04860.00398.111582
    1751660.9305410.0114970.02480.00031.040.16590.00523.130.04850.00153.091582
    18*132011.2855830.0026340.03550.00041.041.55160.02281.470.31710.00411.302252
    注:带“∗”的点号为计算年龄加权平均值时剔除的数据
    下载: 导出CSV
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出版历程
收稿日期:  2016-12-31
修回日期:  2017-03-15
刊出日期:  2017-08-25

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