The geologic settings of Chinese coal deposits

Li, Zengxue; Wang, Dongdong; Lv, Dawei; Liu, Ying; Liu, Haiyan; Wang, Pingli; Liu, Ying; Liu, Jianqiang; Li, Dandan

doi:10.1080/00206814.2017.1324327

Cited by 65 publications

(35 citation statements)

References 72 publications

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“…Yitong Garben is located in the southeast margin of the Songliao Basin. It is a small Cenozoic rifting basin developed along the west branch of the Tanlu Fault (Li et al, ; Sun et al, ; Tian & Du, ). From the recent tectostratigraphic results of Yitong Garben (Hou, Zhao, et al, ), the thrust fold and nappe structures were prevailed in the marginal areas since the middle to late Oligocene, at the same time the sequences deposited during the earlier rifting stage were undergone strong tectonic inversion and exhumation.…”

Section: Discussionmentioning

confidence: 99%

Post‐rift Tectonic History of the Songliao Basin, NE China: Cooling Events and Post‐rift Unconformities Driven by Orogenic Pulses From Plate Boundaries

et al. 2018

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The classic lithosphere‐stretching model predicts that the post‐rift evolution of extensional basin should be exclusively controlled by decaying thermal subsidence. However, the stratigraphy of the Songliao Basin in northeastern China shows that the post‐rift evolution was punctuated by multiple episodes of uplift and exhumation events, commonly attributed to the response to regional tectonic events, including the far‐field compression from plate margins. Three prominent tectonostratigraphic post‐rift unconformities are recognized in the Late Cretaceous strata of the basin: T11, T03, and T02. The subsequent Cenozoic history is less constrained due to the incomplete record of younger deposits. In this paper, we utilize detrital apatite fission track (AFT) thermochronology to unravel the enigmatic timing and origin of post‐rift unconformities. Relating the AFT results to the unconformities and other geological data, we conclude that in the post‐rift stage, the basin experienced a multiepisodic tectonic evolution with four distinct cooling and exhumation events. The thermal history and age pattern document the timing of the unconformities in the Cretaceous succession: the T11 unconformity at ~88–86 Ma, the T03 unconformity at ~79–75 Ma, and the T02 unconformity at ~65–50 Ma. A previously unrecognized Oligocene unconformity is also defined by a ~32–24 Ma cooling event. Tectonically, all the cooling episodes were regional, controlled by plate boundary stresses. We propose that Pacific dynamics influenced the wider part of eastern Asia during the Late Cretaceous until Cenozoic, whereas the far‐field effects of the Neo‐Tethys subduction and collision processes became another tectonic driver in the later Cenozoic.

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Section: Discussionmentioning

confidence: 99%

Post‐rift Tectonic History of the Songliao Basin, NE China: Cooling Events and Post‐rift Unconformities Driven by Orogenic Pulses From Plate Boundaries

et al. 2018

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“…Accordingly, the lithofacies paleogeography had also experienced changes. The evolution sequence of the sedimentary system was as follows: tidal flat system > barrier lagoon system > delta system > river system (Li et al, 2018).…”

Section: Development and Distribution Of The Fine-grained Rock In Thementioning

confidence: 99%

The characteristics of hydrocarbon generation, reserving performances of fine-grained rock, and preservation conditions of coal measure shale gas of an epicontinental sea basin: A case study of the Late Palaeozoic shale gas in the Huanghebei Area of Western Shandong

Liu¹,

Wang³

et al. 2018

Energy Exploration & Exploitation

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In China, marine and land transitional fine-grained rocks (shale, mudstone, and so on) are widely distributed and are known to have large accumulated thicknesses. However, shale gas explorations of these types of rock have only recently been initiated, thus the research degree is very low. Therefore, this study was conducted in order to improve the research data regarding the gas accumulation theory of marine and continental transitional fine-grained rock, as well as investigate the shale gas generation potential in the Late Paleozoic fine-grained rock masses located in the Huanghebei Area of western Shandong Province. The hydrocarbon generation characteristics of the epicontinental sea coal measures were examined using sedimentology, petrography, geochemistry, oil and gas geology, tectonics, and combined experimental testing processes. The thick

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“…Sediments of the Carboniferous and Permian-Tertiary continental facies clastic rocks overly the early Cambrian metamorphic crystalline basement, which in turn are conformably overlain by the upper Paleozoic Benxi group, Taiyuan group, Shanxi group, and other land to sea transitional shales (Li et al, 2018;Lv et al, 2017). The National Shale Gas Resource Potential Assessment Project has involved studies on the Upper Paleozoic mud shale formation of the Ningwu Basin, which is considered to have good shale gas formation conditions (Sun et al,.…”

Section: Introduction and Methodologymentioning

confidence: 99%

Geology and transitional shale gas resource potentials in the Ningwu Basin, China

Xu²,

Jiang

et al. 2018

Energy Exploration & Exploitation

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We analyzed the tectonic evolution characteristics, sedimentary environment, geochemical characteristics, petrological characteristics, and gas-bearing properties of three mudstone sections of the Lower Paleozoic in Ningwu Basin, NE China, and determined the geologic characteristics and resource potential of the transitional facies shale gas. Geochemical analysis of the organic carbon content, kerogen macerals, and vitrinite reflectance of the shale samples showed that the total organic content was generally over 2.0%, the main organic type was type III, and the vitrinite reflectance values (Ro) were between 1.20 and 1.90%. Thus, the mudstones are good shale gas source rocks. The thickness of the three mudstone sections was approximately 30-70 m, and the average porosity was 3.10%. The pore types were diverse with good reservoir capacity. The shale gas resources of the Carboniferous-Permian transitional facies estimated by the volumetric method were approximately 2798.97 Â 10 8 -4643.09 Â 10 8 m 3. Through a comparison with shales in SW China, where shale gas has been successfully exploited, we determined the preferred criteria for favorable shale gas areas, as well as favorable areas for shale gas enrichment.

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The geologic settings of Chinese coal deposits

Cited by 65 publications

References 72 publications

Post‐rift Tectonic History of the Songliao Basin, NE China: Cooling Events and Post‐rift Unconformities Driven by Orogenic Pulses From Plate Boundaries

Post‐rift Tectonic History of the Songliao Basin, NE China: Cooling Events and Post‐rift Unconformities Driven by Orogenic Pulses From Plate Boundaries

The characteristics of hydrocarbon generation, reserving performances of fine-grained rock, and preservation conditions of coal measure shale gas of an epicontinental sea basin: A case study of the Late Palaeozoic shale gas in the Huanghebei Area of Western Shandong

Geology and transitional shale gas resource potentials in the Ningwu Basin, China

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