Quantitative Restoration of Eroded Carbonate Strata Thickness by Milankovitch Cycle: A Case Study of Ordovician Strata in Lunnan Paleo⁃Uplift, Tarim Basin

被引：1
|
作者：
Ma D. [1 ]
Wang Y. [1 ]
Chen X. [1 ]
Wang S. [1 ]
Yang M. [1 ]
Du D. [1 ]
机构：
[1] PetroChina Research Institute of Petroleum Exploration and Development, Beijing
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2023年 / 48卷 / 08期
关键词：
carbonate strata; Milankovitch cycle analysis; paleo‐structure restoration; restoration of eroded strata thickness; structural geology; Tarim Basin;
D O I：
10.3799/dqkx.2023.057
中图分类号：
学科分类号：
摘要：
It is of great significance to quantitatively restore eroded strata for tectonic study in a basin. In this paper, through spectral analysis of the ln (Th/K) curve, an indicator of climate variation resulting from Milankovitch cycles, the eroded strata of Ordovician Yijianfang and Yingshan formations are quantitatively restored on Lunnan paleo ‐uplift of Tarim Basin. The following three results are concluded:（1）Milankovitch cycles are characterized by undeveloped longer eccentricity period (413 ka, 125 ka), well developed short eccentricity period of 95 ka, slope period and precession period in Yijianfang and Yingshan formations. (2) There are 86 short eccentricity periods developed in Yijianfang and Yingshan formations. Erosion thicknesses in 8 wells are restored quantitively by comparing the amount of Milankovitch cycles in short eccentricity period in denudation zones and inside strata. (3)Distributed in the north of well zone H6 ‐ TS2 ‐ TS1 ‐ LG36, the denudation zones include northwestern and northern centers, with an erosion thickness of over 300 m and 250 m respectively. It is approved that Milankovitch cycle analysis is a proxy for quantitative restoration of eroded carbonate strata and provide insight for paleo‐structures restoration in marine carbonate basins. © 2023 China University of Geosciences. All rights reserved.
引用
收藏
页码：2933 / 2946
页数：13
相关论文
共 36 条
  • [11] Jin Z. J., Zhang Y. W., Chen S. P., Tectono‐Sedimentary Fluctuation Process in Tarim Basin, Science In China (Ser. D Earth Science), 35, 6, pp. 530-539, (2005)
  • [12] Li D. Y., Guo T. Y., Jiang X. D., Et al., Erosion Thickness Recovery and Tectonic Evolution Characterization of Southern East China Sea Shelf Basin, Oil & Gas Geology, 36, 6, pp. 913-923, (2015)
  • [13] Li K., Zhao X. K., Shen Z. M., Et al., Application of Trend Thickness Method in Denudation Recovery in the Akekule Lobe of Tarim Basin, Computing Techniques for Geophysical and Geochemical Exploration, 29, 5, pp. 415-419, (2007)
  • [14] Li M. S., Ogg J., Zhang Y., Et al., Astronomical Tuning of the End‐Permian Extinction and the Early Triassic Epoch of South China and Germany, Earth and Planetary Science Letters, 441, pp. 10-25, (2016)
  • [15] Liu C. G., Qi L. X., Liu Y. L., Et al., Positive Carbon Isotope Excursions: Global Correlation and Genesis in the Middle‐Upper Ordovician in the Northern Tarim Basin, Northwest China, Petroleum Science, 13, 2, pp. 192-203, (2016)
  • [16] Ma D. B., Chen L.X., Tao X. W., Et al., The Tectonic Evolution and Its Petroleum Geological Significance in Halahatang Area, Tarim Basin, Chinese Journal of Geology, 53, 1, pp. 87-104, (2018)
  • [17] Ma D. B., Yang M., Du D. D., Et al., Analysis of the Superposition Process of Multiphase Active Paleo‐Uplift: Taking the Lunnan Paleo‐Uplift in the Tarim Basin as an Example, Acta Petrologica Sinica, 36, 11, pp. 3523-3536, (2020)
  • [18] Ma X. Y., Lu Y. Z., Fan R., Et al., Cyclostratigraphic Studies of the Middle ‐ Upper Ordovician at Dawangou Section, Kalpin, Xinjiang and Their Geological Implication, Journal of Stratigraphy, 45, 1, pp. 29-37, (2021)
  • [19] Ma Y. S., Lou Z. H., Guo T. L., Et al., An Exploration on a Technological System of Petroleum Preservation Evaluation for Marine Strata in south China, Acta Geological Sinica, 80, 3, pp. 406-417, (2006)
  • [20] Pang Y. M., Guo X. W., Zhang X H, Et al., Denudation of Indosinian Unconformity and Tectonic Evolution in the Central Uplift of South Yellow Sea Basin: Insights from CSDP‐2 Well, Geotectonica et Metallogenia, 43, 2, pp. 235-245, (2019)
1234