Uplifting and erosion process of Wuling Concave Field, Southeast margin Yangtze Platform since Cenozoic—evidence of fission track of clastic apatite
-
摘要:
为揭示扬子板块东南缘新生代以来的热隆升历史, 选取扬子地台东南缘武陵凹陷区为研究区, 开展磷灰石裂变径迹测年和热演化史模拟, 揭示扬子地台东南缘武陵凹陷区古近纪以来的构造-热演化过程。测年结果显示, 武陵凹陷区自晚中生代以来经历了晚三叠世—白垩纪的坳陷沉降和白垩纪末期以后的持续隆升剥蚀2个构造发展演化阶段。定量分析结果显示, 研究区新生代以来的隆升可分为2期: Ⅰ期自约80 Ma开始, 该隆升事件的启动应与四川运动有关; Ⅱ期自约28 Ma开始, 该时期持续的隆升与印度板块和欧亚板块在雅鲁藏布江带的碰撞有关。扬子地台东南缘武陵凹陷区的磷灰石裂变径迹数据, 揭示了武陵凹陷区的构造-热演化过程, 弥补了该区热年代学研究的不足, 对揭示武陵凹陷区乃至整个中上扬子中—新生代的构造热演化过程具有重要意义。
Abstract:In order to reveal the thermal uplifting history of Southeast margin Yangtze Block since Cenozoic Era, in this paper, it selects Wuling Concave Field of Southeast margin Yangtze Platform as the study area, performs the dating of clastic apatite fission track and imitate the thermal evolution, and reveals the tectonic-thermal evolution of Wuling Concave Field at Southeast margin of Yangtze platform since Paleogene. The results show that the study area experienced two evolution stages. By the quantitative analysis, it can be known that uplifting at the study area since cretaceous period can be divided into two periods, Period Ⅰ started from 80 Ma in which the start of uplifting linked with Sichuan Movement, Period Ⅱ started from about 28 Ma in which the continuous uplifting linked with the impact between India Plate and Eurasian Plate at the Yarlung Zangbo River. For the first time, this research got the fission track data of clastic apatite in Wuling Concave Field of Southeast margin of Yangtze Platform, which revealed the tectonic-thermal evolution at Wuling Concave Field and covered the shortage of thermochronology in the study area. Actually, this research plays a significant role in revealing the tectonic-thermal evolution of Wuling Concave Field, even middle and upper Yangtze Region at Mesozoic and Cenozoic.
-
Key words:
- Southeast margin of Yangtze Plate /
- uplifting and erosion /
- clastic apatite /
- fission track /
- Cenozoic
-
-
表 1 样品采集信息
Table 1. Sample information
样品编号 东经 北纬 地层/岩性 高程/m 测量的颗粒数量/个 LHS06 108°09′10″ 27°46′29″ S1h/钙质粉砂岩 600 37 LHS08 108°09′17″ 27°46′41″ S1x/钙质粉砂岩 540 35 LHS04 108°14′19″ 27°40′37″ S1x/粉砂质粘土岩 720 35 LHS02 108°14′30″ 27°40′20″ S1xt/钙质粉砂岩 660 16 注：S1h—下志留统回星哨组；S1x—下志留统秀山组；S1xt—下志留统新滩组 
下载: 导出CSV
表 2 磷灰石裂变径迹测试结果
Table 2. Test result of clastic apatite fission track
样号 ρs/(105·cm-2) Ns ρi/(105·cm-2) Ni ρd /(105·cm-2) P(x2) /% 年龄/Ma 长度/μm Nd Dpar/μm LHS02 1.001 911 7.566 688 13.461 66.50 34±4 13.6±5.3 6039 27.2 LHS04 4.126 451 31.772 3473 12.915 99.90 34±2 12.7±1.7 6039 25.4 LHS06 6.077 939 13.434 2076 5.950 92.40 55±3 12.3±2.0 6039 24.6 LHS08 6.606 250 27.718 1049 11.822 98.70 58±5 12.3±1.9 6039 24.6 注: ρs、ρi、ρd分别表示矿物中自发裂变径迹密度、云母外探测器记录矿物中诱发裂变径迹密度和中子注量监测器标准铀玻璃组件的诱发裂变径迹密度; : Ns、Ni、Nd分别表示所测径迹数量; P(x2)为Chi-sq检验概率，当P(x2)>5%时, 通常认为所测单颗粒年龄属于同组年龄，否则属于不同年龄组; 裂变径迹测定年龄一般用中心年龄值，当单颗粒年龄为0时，用组合年龄值
下载: 导出CSV
-
[1] 廖震文, 王生伟, 孙晓明, 等. 黔东北地区MVT型铅锌矿床闪锌矿Rb-Sr定年及其地质意义[J]. 矿床地质, 2015, 34(4): 769-785. https://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ201504008.htm
[2] 叶飞, 潘文, 李典, 等. 黔东北燕山期构造变形特征及对华南大塘坡式锰矿勘查的影响——以普觉锰矿犁式正断层为例[J]. 矿床地质, 2019, 38(6): 1391-1406. https://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ201906013.htm
[3] 叶飞, 李江风, 舒多友, 等. 贵州梵净山世界自然遗产地重要地质遗迹特征、成因及演化研究[J]. 地球学报, 2021, 42(1): 99-110. https://www.cnki.com.cn/Article/CJFDTOTAL-DQXB202101012.htm
[4] 谢小峰, 杨坤光, 周琦, 等. 犁式正断层特征及其在找矿预测中的作用: 以黔东松桃西溪堡大型锰矿床为例[J]. 地质科技情报, 2015, 34(6): 33-39. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ201506005.htm
[5] 周琦, 杜远生, 袁良军, 等. 黔湘渝毗邻区南华纪武陵裂谷盆地结构及其对锰矿的控制作用[J]. 地球科学, 2016, 41(2): 177-188. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201602001.htm
[6] 牛志军, 邓新, 刘浩, 等. 扬子陆块南北缘新元古代火山-沉积岩系研究现状与问题[J]. 华南地质, 2022, 38(1): 27-45. https://www.cnki.com.cn/Article/CJFDTOTAL-HNKC202201001.htm
[7] 罗开平, 刘光祥, 王津义. 黔中隆起金沙地区中新生代隆升剥蚀的裂变径迹分析[J]. 海相油气地质, 2019, 14(1): 61-64. https://www.cnki.com.cn/Article/CJFDTOTAL-HXYQ200901013.htm
[8] 周德全, 刘秀明. 贵州高原层状地貌与高原抬升[J]. 地球与环境, 2005, (2): 79-84 doi: 10.3969/j.issn.1672-9250.2005.02.013
[9] 秦守荣, 刘爱民. 论贵州喜山期的构造运动[J]. 贵州地质, 1998, (2): 105-114. https://www.cnki.com.cn/Article/CJFDTOTAL-GZDZ199802000.htm
[10] 林树基. 贵州晚新生代构造运动的主要特征[J]. 贵州地质, 1993, (1): 10-17. https://www.cnki.com.cn/Article/CJFDTOTAL-GZDZ199301001.htm
[11] 张君, 李长安, 孙习林. 乌江流域中—新生代以来构造运动的碎屑磷灰石裂变径迹证据[J]. 地质论评, 2013, 59(3): 537-543. doi: 10.3969/j.issn.0371-5736.2013.03.014
[12] 李亚男, 彭治超, 戴银月. 裂变径迹分析及其在地质问题中的应用[J]. 西安文理学院学报(自然科学版), 2018, 21(3): 117-121. doi: 10.3969/j.issn.1008-5564.2018.03.025
[13] 宋立军, 刘池阳, 袁炳强. 基于碎屑磷灰石裂变径迹热史判别碎屑岩形成时代的方法[J]. 地球科学, 2018, 43(S2): 214-225. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX2018S2017.htm
[14] 方石, 刘招君, 黄湘通, 等. 大兴安岭东南坡新生代隆升及地貌演化的裂变径迹研究[J]. 吉林大学学报(地球科学版), 2008, (5): 771-776, 794. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ200805009.htm
[15] Li E G, Ling S Z, Ling H, et al. Behavior of apatite in granitic melts derived from partial melting of muscovite in metasedimentary sources[J]. China Geology, 2021, 4(1): 44-55.
[16] Xiao Y T, Shu C Y, Sheng B H. Tectonic-thermal history and hydrocarbon potential of the Pearl River Mouth Basin, northern South China Sea: Insights from borehole apatite fission-track thermochronology[J/OL]. China Geology, 2022, 1-14. doi: 10.31035/cg2022055.
[17] 张君, 李长安, 孙习林. 乌江流域中—新生代以来构造运动的碎屑磷灰石裂变径迹证据[J]. 地质论评, 2013, 59(3): 537-543. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP201303015.htm
[18] 兰天龙. 浅议黔东北地区铅锌矿地质特征与找矿方向[J]. 地质找矿论丛, 2013, 28(2): 216-223. https://www.cnki.com.cn/Article/CJFDTOTAL-DZZK201302010.htm
[19] 赵爽, 潘文, 杨胜堂, 等. 湘西—黔东北地区下寒武统铅锌矿矿床地质特征及成因探讨[J]. 贵州地质, 2016, 33(4): 257-264. https://www.cnki.com.cn/Article/CJFDTOTAL-GZDZ201604004.htm
[20] 叶飞, 潘文, 左勇, 等. 扬子地台东南缘上奥陶统五峰组斑脱岩锆石U-Pb年龄及其地质意义[J]. 地质通报, 2019, 38(10): 1718-1725. http://dzhtb.cgs.cn/gbc/ch/reader/view_abstract.aspx?file_no=20191012&flag=1
[21] Van Den, Bellemans F, De Corte F, et al. Composition of SRM and CN U-doped glasses: Significance for their use as thermal neutron monitors in fission track dating[J]. Radiation Measurements, 1994, 24(2): 153-160.
[22] Green P F. On the thermo-tectonic evolution of northern Eng-land: evidence from fission track analysis[J]. Gcology, 1986, (5): 493-506. http://ci.nii.ac.jp/naid/10011069697
[23] Gleadow A J W, Duddy I R, Green P F et al. Lovering. Confined fission track lengths in apatite: a diagnostic tool for thermal history analysis[J]. Contributions to Mineralogy and Petrology, 1986, 94(4): 405-415.
[24] Hurford A J, Green P F. A users'guide to fission track dating calibration[J]. Earth and Planetary Science Letters, 1982, 59(2): 343-354.
[25] 沈传波, 梅廉夫, 张士万, 等. 依连哈比尔尕山和博格达山中新生代隆升的时空分异: 裂变径迹热年代学的证据[J]. 矿物岩石, 2008, (2): 63-70. https://www.cnki.com.cn/Article/CJFDTOTAL-KWYS200802013.htm
[26] Ketcham R A. Forward and inverse modeling of low-tem-perature thermochronometry data[J]. Reviews in Mineralogy and Geochemistry, 2005, 58(1): 275-314.
[27] Donelick R A, Ketcham R A, Carlson W D. Variability of apatite fission-track annealing kinetics: Ⅱ. Crystallographic orientation effects[J]. American Mineralogist, 1999, 84(9): 1224-1234.
[28] Shen C B, Mei L B, Min K, et al. Multi-chronometric dating of the Huarong granitoins from the middle Yangtze Craton: implications for the tectonic evolution of eastern China[J]. Journal of Asian Earth Sciences, 2012, 2: 73-87.
[29] Flowers R M, Farley K A, Ketcham R A. A reporting protocol for thermochronologic modeling illustrated with data from the Grand Canyon[J]. Earth and Planetary Science Letters, 2015, 432: 425-435.
[30] 张冰, 颜丹平, 宋鸿林, 等. 断展褶皱要素对隐伏滑脱层深度及几何样式的约束: 数学分析及其在重庆地区薄皮构造中的应用[J]. 现代地质, 2008, (5): 779-786. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200805013.htm
[31] 李春呈. 四川运动及其在中国之分布[J]. 地质论评, 1950, (Z2): 135-156. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP1950Z2002.htm
[32] Aitchison J C, Davis A M. When. did the India-Asia collision really happen?[J]. Gondwana Research, 2001, 4(4): 560-561.
① 曾克峰, 刘超, 张晶, 等. 贵州思南乌江喀斯特国家地质公园规划文本. 中国地质大学, 2010.
② 叶飞, 潘文, 占朋才, 等. 贵州1∶5万思南县幅等三幅区域地质调查报告. 2019.
③ 谯文浪, 马义波, 唐佐其, 等. 贵州1∶5万梵净山幅等四幅区域地质调查报告. 2013.
-
图(6)
表(2)
计量
- 文章访问数: 1283
- PDF下载数: 26
- 施引文献: 0