Factors controlling the distribution of oil shale layers in the Eocene Fushun Basin, NE China

Li, Yuanji; Sun, Pingchang; Liu, Zhaojun; Xu, Yinbo; R, Liu; Ma, Lin

doi:10.1016/j.marpetgeo.2021.105350

Cited by 18 publications

(12 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of shallow burial, the vitrinite reflectance ( R o ) is less than 0.5%, weak diagenesis occurred in the study area, and the fine-grained sedimentary rocks are basically primary clay minerals. The paleoclimate has an impact on organic matter and rock mineral composition. − Kaolinite is the main product of chemical weathering, − and a warm and humid climate is conducive to the formation and deposition of kaolinite .…”

Section: Discussionmentioning

confidence: 99%

“…27 , 28 The coal and carbonaceous mudstone of the Guchengzi Formation were deposited in a swamp environment, and the oil shale of the Jijuntun Formation was deposited in shallow and deep lake environments. 29 …”

Section: Geological Settingmentioning

confidence: 99%

“…Because of shallow burial, the vitrinite reflectance (R o ) is less than 0.5%, weak diagenesis occurred in the study area, 29 and the finegrained sedimentary rocks are basically primary clay minerals. The paleoclimate has an impact on organic matter and rock mineral composition.…”

Section: Rock Composition and Paleoclimatementioning

confidence: 99%

“…The Guchengzi Formation consists of a thick coal seam intercalated with carbonaceous shale, and the thickness of the coal seam decreases from west to east and from south to north. The Jijuntun Formation is composed of thick oil shale and is stably distributed throughout the whole region. , The coal and carbonaceous mudstone of the Guchengzi Formation were deposited in a swamp environment, and the oil shale of the Jijuntun Formation was deposited in shallow and deep lake environments …”

Section: Geological Settingmentioning

confidence: 99%

See 3 more Smart Citations

Eocene Paleoclimate Evolution under the Background of Warmhouse–Hothouse Conditions in the Continental Fushun Basin: Implications from Magnetic Susceptibility and Color Reflectance

Wang

Sun

Du³

et al. 2022

ACS Omega

Self Cite

View full text Add to dashboard Cite

Paleocene–Eocene hyperthermal events are a current research focus in the fields of sedimentology and paleoclimatology. The Fushun Basin in northeast China contains continuous continental Eocene fine-grained rocks, and a series of Eocene hyperthermal events in the Fushun Basin have been identified. Because of the high cost of high-precision isotope data testing, it is necessary to find new and alternative paleoclimate parameters. In this study, Eocene coal and oil shale-bearing layers in the Fushun Basin are used as research objects. The high-precision data of magnetic susceptibility, color reflectance, rock composition, and cluster analyses are used to conduct a vertical comparison in the same category and compare that analysis with the identified Eocene hyperthermal events in the Fushun Basin. The preliminary results show that high-frequency-dependent susceptibility, high color reflectance a * (redness)/ L * (lightness) values, and high kaolinite content in the study area have good correspondence with global hyperthermal events and can be used as effective parameters for the identification of continental basin hyperthermal events. The detailed magnetic susceptibility and color reflectance data also reveal that the Eocene strata in the Fushun Basin recorded the Late Lutetian Thermal Maximum (LLTM) and 13 short-term hyperthermal events during the Early Eocene Climatic Optimum (EECO). These results indicate that the parameters of rock physical properties can be used to study the evolution of the paleoclimate in geological history, and it has universal practicability in continental and marine fine-grained sedimentary rocks.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Rock Composition and Paleoclimatementioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

See 2 more Smart Citations

Eocene Paleoclimate Evolution under the Background of Warmhouse–Hothouse Conditions in the Continental Fushun Basin: Implications from Magnetic Susceptibility and Color Reflectance

Wang

Sun

Du³

et al. 2022

ACS Omega

Self Cite

View full text Add to dashboard Cite

show abstract

“…Organic-rich fine-grained sedimentary rocks are closely related to regional climate evolution and can even correspond to global climate events. − The thick coal deposits in the Fushun Basin provide a good opportunity for studying element enrichment, occurrence forms, and influencing factors in coal seams. Many researchers have conducted detailed studies on the source of organic matter, sedimentary environment, and extreme climate of coal seams in the Fushun Basin, providing a preliminary basis for this study. − However, only few studies have investigated element enrichment, occurrence forms, and sources of coal seams in the Fushun Basin.…”

Section: Introductionmentioning

confidence: 99%

Occurrence Patterns and Enrichment Influencing Factors of Trace Elements in Paleogene Coal in the Fushun Basin, China

Zhang

Wei

Zhang

et al. 2022

ACS Earth Space Chem.

Self Cite

View full text Add to dashboard Cite

The occurrence forms of trace elements in coal are of great significance for the clean utilization, abnormal enrichment, and recovery of beneficial elements in coal. The Fushun Basin in Northeast China has thick coal deposits which provide a good opportunity for studying their geochemistry. This study aims to estimate the element enrichment of Paleogene coal seams and their influencing factors during deposition based on statistical and geochemical analyses. Compared with world hard coals, coals in the Fushun Basin feature enrichment of Ga and Sb (CC > 5), slight enrichment of V, Cr, Co, Ni, As, Rb, Zr, Nb, and Cd (2 < CC < 5), and depletion of B, Tl, Bl, and U (CC < 0.5). The CC values of the remaining elements (0.5 < CC < 2) are close to the average values for world hard coals. The main carriers of Ga, Co, Rb, Mo, As, Se, Pb, V, and Li are potassium, iron, and sulfate minerals and those of Cd, Cr, Ni, Sb, Th, Sn, U, Hf, Zr, Cs, Ta, and Nb are clay minerals. The CIA, Sr/Cu, Rb/Sr, and Ga/Rb values suggest that the studied coal seam formed under humid/warm climatic conditions. The coal seam is mainly derived from intermediate source rocks and sandstone or mudstone source rocks which were exposed to intensive chemical weathering and deposited in a freshwater setting. Additionally, paleoweathering, paleoclimate, detrital input, and provenance all contributed to the enrichment of geochemical elements in the studied Paleogene coal. The results of this study are preliminary, and the authors will continue to conduct mineralogical analysis.

show abstract

Quantitative geochemical reconstruction of Eocene paleoenvironment in Fushun Basin, northeast China

Li,

Sun,

Zhang

et al. 2024

Acta Geochim

View full text Add to dashboard Cite

Factors controlling the distribution of oil shale layers in the Eocene Fushun Basin, NE China

Cited by 18 publications

References 71 publications

Eocene Paleoclimate Evolution under the Background of Warmhouse–Hothouse Conditions in the Continental Fushun Basin: Implications from Magnetic Susceptibility and Color Reflectance

Eocene Paleoclimate Evolution under the Background of Warmhouse–Hothouse Conditions in the Continental Fushun Basin: Implications from Magnetic Susceptibility and Color Reflectance

Occurrence Patterns and Enrichment Influencing Factors of Trace Elements in Paleogene Coal in the Fushun Basin, China

Quantitative geochemical reconstruction of Eocene paleoenvironment in Fushun Basin, northeast China

Contact Info

Product

Resources

About