Orbitally forced glacio-eustatic origin of third-order sequences and parasequences in the Middle Permian Maokou Formation, South China

Cong, Fuyun; Zhu, Fangbing; Cai, Zhongxian; Chen, Haoru; Li, Jie; Wang, Yuxuan; Wang, Liangjun

doi:10.1016/j.marpetgeo.2018.10.014

Cited by 21 publications

(6 citation statements)

References 68 publications

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“…The ratios of the dominant frequencies close to that of the astronomical cycle frequencies (e 2 , e 3 , o 1 , and o 2 ) were found in four wells (LS1, LS2, LS3, and X14), while the ratios of the dominant frequencies close to that of the frequencies (e 2 , e 3 , and o 1 ) were found in two wells (T15 and XM1) (Table ). The error was within the range of 0.13 to 6.01%, with an acceptable average error of 2.38%, indicating that the Milankovitch cycle was recorded during the sedimentary process of the Maokou Formation, which was consistent with the research result of Cong et al…”

Section: Resultssupporting

confidence: 89%

Calculating the Eroded Thickness Corresponding to a Short-Term Tectonic Uplift with Milankovitch Theory: A Case Study of the Middle Permian Maokou Formation in Southeastern Sichuan Basin, Southwest China

et al. 2021

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The Middle Permian Maokou Formation in the southeastern Sichuan Basin is a typical carbonate karst reservoir. At the end of the Middle Permian, a short-term tectonic uplift (Tungwu movement) occurred in the upper Yangtze region, causing the formation of dissolved fissures and holes. To determine the location of the high-quality reservoir, this paper calculated the eroded thickness using the Milankovitch theory. Based on the gamma logging data of the six wells in the southeastern Sichuan Basin, the dominant frequency and the astronomical time scale were evaluated via frequency spectrum analysis, continuous wavelet transform, and empirical mode decomposition. In addition, we analyzed the relationship between Fischer curve characteristics and the variation of lithology. Last, four methods were used to calculate the eroded thickness, and the rationality was analyzed. Consequently, we identified four levels of Milankovitch cycles, i.e., middle eccentricity (e2), short eccentricity (e3), long obliquity (o1), and short obliquity (o2). Also, the Fischer curves of the six wells were divided into two forms related to local structural uplift. The residual strata of the Maokou Formation comprised three complete third-order cycles, and the boundaries were the 15th, 34th, and 54th e3 cycles. The deposition rate of bioclastic limestone was the lowest (2.12–5.36 cm/ka with an average of 3.30 cm/ka), whereas the deposition rate of argillaceous limestone was the largest (2.27–5.25 cm/ka with an average of 4.09 cm/ka). Among the four methods, the missing formation deposition rate method exhibited the most precise calculation results, while that of the seismic data method was relatively low. Generally, the eroded thickness of the Maokou Formation in southeastern Sichuan was in the range of 0–140 m, i.e., the eroded thickness in the west and south of X14 was relatively large (>100 m), while the area north of LS1 experienced the weakest denudation (eroded thickness < 40 m).

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Section: Resultssupporting

confidence: 89%

Calculating the Eroded Thickness Corresponding to a Short-Term Tectonic Uplift with Milankovitch Theory: A Case Study of the Middle Permian Maokou Formation in Southeastern Sichuan Basin, Southwest China

et al. 2021

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“…However, cyclic sedimentation controlled by changes in the Earth's orbit during the Middle Permian have been reported and related to climate fluctuations resulting from growth and waning of Late Paleozoic ice-sheets. For example, recent cyclostratigraphic studies in Permian J o u r n a l P r e -p r o o f marine sequences from southern China confirmed the presence of Milankovitch cycles recorded in the Middle to Late Permian sediments (Wu et al, 2013;Yao et al, 2015;Fang et al, 2015Fang et al, , 2017Cong et al, 2019;Yao and Hinnov, 2019). The imprint of Milankovitch cycles in South China, Gufeng Formation of Roadian-Capitanian age, which is characterized by rhythmic chertmudstone couplets deposited on a continental shelf, has been reported by Yao et al (2015).…”

Section: Introductionmentioning

confidence: 78%

“…The imprint of Milankovitch cycles in South China, Gufeng Formation of Roadian-Capitanian age, which is characterized by rhythmic chertmudstone couplets deposited on a continental shelf, has been reported by Yao et al (2015). Cong et al (2019) recognized astronomically forced parasequences controlled by sea-level changes in the Middle Permian Maokou Formation (China) suggesting the presence of orbitallydriven glacio-eustasy. Continental sedimentary successions are sparse but they can provide highresolution paleoclimate archives and offer information of orbitally forced climate change and depositional system responses on land records.…”

Section: Introductionmentioning

confidence: 99%

Astronomically forced cycles in Middle Permian fluvial sediments from Karoo Basin (South Africa)

Lanci

Galeotti

Ratcliffe

et al. 2022

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Recent reports have argued that climate change associated with orbital forcing is the major factor that controls the development of third-order and higher frequency sequences (Boulila et al, 2011;Liu et al, 2022;Wu et al, 2022). The third-order sequences may be connected to ~2.4 Myr long-period eccentricity and ~1.2 Myr long-period obliquity (e.g., Boulila et al, 2011;Cong et al, 2019;Du et al, 2020). Notably, this hierarchy can account for orbital frequency evolution throughout geological time.…”

Section: High-frequency Sedimentary Framework Division and Correlationmentioning

confidence: 99%

“…The fifthorder sequence is a rhythmic transgression-regression sequence with low amplitude lake-level change corresponding to the short-term base-level cycle and controlled by the ~100 kyr short eccentricity cycle (Boulila et al, 2010;Boulila et al, 2011;Tang et al, 2022). Many scholars therefore use different orders of eccentricity cycles as a reference to divide the high-frequency cycle framework of lacustrine shale sequences (e.g., Cong et al, 2019;Du et al, 2020;Fang et al, 2023).…”

Section: Figurementioning

confidence: 99%

Cyclostratigraphy and high-frequency sedimentary cycle framework for the Late Paleozoic Fengcheng Formation, Junggar Basin

Liu

Zhang

et al. 2023

Front. Earth Sci.

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The Late Paleozoic Fengcheng Formation within the Mahu Sag of the Junggar Basin (China) harbors the world’s oldest alkaline lake hydrocarbon source rocks. Spectral analysis of the natural gamma-ray (GR) series obtained from four boreholes traversing the Fengcheng Formation, with wavelength ranges of 28.4 m–50 m, 5.9 m–12.6 m, 2.3 m–3.9 m, and 1.2 m–2.7 m. These were controlled by Early Permian astronomical cycles, including 405 kyr long eccentricity, 100 kyr short eccentricity, 34.2 kyr obliquity, and 20.7–17.4 kyr precession. The most significant cycle was notably that of the 405 kyr long eccentricity, which was instrumental for dividing and correlating the high-frequency sedimentary sequences in lacustrine shales. Nine intermediate-term and 36 short-term base-level cycles were identified in the P1f1 and P1f2 members of the Fengcheng Formation. These cycle types are equal to the 405 kyr long eccentricity cycle and ∼100 kyr short eccentricity cycle, respectively. The paleolake-level variations in the Fengcheng Formation were reconstructed using sedimentary noise modeling, revealing that lake levels reached their highest value during the deposition of the P1f2 Member. The spatial distribution patterns of lithofacies in the Fengcheng Formation can be clearly demonstrated within the isochronous cycle framework under the constraints of long eccentricity cycles. The use of astronomical cycles in isochronous stratigraphic correlation offers great potential for characterizing alkaline lacustrine sequences and predicting favorable areas for shale oil exploration with higher accuracy.

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Orbitally forced glacio-eustatic origin of third-order sequences and parasequences in the Middle Permian Maokou Formation, South China

Cited by 21 publications

References 68 publications

Calculating the Eroded Thickness Corresponding to a Short-Term Tectonic Uplift with Milankovitch Theory: A Case Study of the Middle Permian Maokou Formation in Southeastern Sichuan Basin, Southwest China

Calculating the Eroded Thickness Corresponding to a Short-Term Tectonic Uplift with Milankovitch Theory: A Case Study of the Middle Permian Maokou Formation in Southeastern Sichuan Basin, Southwest China

Astronomically forced cycles in Middle Permian fluvial sediments from Karoo Basin (South Africa)

Cyclostratigraphy and high-frequency sedimentary cycle framework for the Late Paleozoic Fengcheng Formation, Junggar Basin

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