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Inertinite in coal and its geoenvironmental significance:Insights from AI and big data analysis

Science China Earth Sciences 2024年第6期67卷 1779-1801页

作者： longyi shao Jiamin ZHOU Timothy PJONES Fanghui HUA Xiaotao XU Zhiming YAN Haihai HOU Dongdong WANG Jing LU State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources and College of Geoscience and Surveying Engineering China University of Miningand Technology(Beijing)Beijing 100083China School of Earth and Environmental Sciences Cardiff UniversityCardiff CF103YEWalesEngland General Prospecting Institute of China National Administration of Coal Geology Beijing 100039China Institute of Architectural Engineering Weifang UniversityWeifang 261061China College of Mining Liaoning Technical UniversityFuxin 123000China College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China

Inertinite,as an important and abundant maceral group in coal,is critical for the study of palaeowildfires and their roles in the Earth’s ***,there has been a significant amount of research on the relationship between palaeowildfire,palaeoclimate change and palaeovegetation evolution based on inertinite *** reflectance of fusinite and semifusinite has been used to estimate the combustion temperature and type of palaeowildfires,and then to evaluate the combustion characteristics of different types of *** relative abundance of inertinite can be used to estimate the atmospheric oxygen *** rapid development of artificial intelligence(AI)and online tools to search scientific databases has presented an opportunity for us to find,collect,arrange,and analyse data from the earliest to latest publications on *** data extraction tool Deep Shovel is used to collect and analyse global inertinite data from the Silurian to the *** software programs such as Gplates,ArcGIS pro and Tableau are then applied to model the relative abundance of inertinite over geological time,which can be correlated with other parameters such as atmospheric oxygen contents,plant evolution and palaeoclimate *** distribution of inertinite in coals varied over different geological periods,being typified by the“high inertinite content-high atmospheric oxygen level”period in the Permian and the“low inertinite content-low atmospheric oxygen level”period in the *** study has proposed a possible model of the positive and negative feedbacks between inertinite characteristics and palaeoenvironmental factors,and has revealed the exceptional role of inertinite in palaeoenvironmental *** research on inertinite will be focused on the integrated study of organic petrology and organic geochemistry of inertinite,the big data-driven research on the temporal and spatial distribution of the global inertinite,the exploration of the

关键词： Inertinite Palaeowildfires Atmospheric oxygen Palaeoclimates Palaeoecosystems

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Oxidative capacities of size-segregated haze particles in a residential area of Beijing

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Journal of Environmental Sciences 2014年第1期26卷 167-174页

作者： Zhenquan Sun longyi shao Yujing Mu Ying Hu Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing Centre for Physical and Chemical Analysis State Key Laboratory of Coal Resources and Safe Mining & College of Geoscience and Surveying Engineering China University of Mining and Technology

The frequent haze days around the Chinese capital of Beijing in recent years have aroused great attention owing to the detrimental effects on visibility and public health. To discover the potential health effects of the haze, oxidative capacities of airborne particles collected in Beijing during haze and clear days were comparably assessed by a plasmid scission assay. Eleven water-soluble trace elements （As, Cd, Cr, Cu, Mn, Ni, Pb, V, Se, T1, and Zn） in the size-segregated airborne particles were quantitatively analyzed by inductively coupled plasma mass spectrometry, and most of the water- soluble trace elements were found to mainly concentrate in the fine particle size of 0.56-1.0 μm. In comparison with clear days, the mass concentrations of 11 analyzed water-soluble trace elements remarkably increased during haze days, and the oxidative capacities determined by the plasmid scission assay were markedly elevated accordingly during the haze days under the same dosage of particles as for those during clear days. Water-soluble trace elements in airborne particles, such as Cu, V, and particularly Zn, were found to have significantly positive correlations with the plasmid DNA damage rates. Because Cu, V, and Zn have been considered as bioavailable elements, the evident increase of these elements during haze days may be greatly harmful to human health.

关键词： haze water soluble trace elements plasmid scission damage size distribution

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鄂尔多斯盆地东部上石炭统铝土岩系储集层特征及形成模式

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石油勘探与开发 2024年第1期51卷 39-47页

作者：李勇王壮森邵龙义弓嘉勋吴鹏中国矿业大学(北京)地球科学与测绘工程学院北京100083 中联煤层气有限责任公司北京100011

基于岩心观察、岩石薄片、X射线衍射、扫描电镜、低温气体吸附和等温吸附等实验,分析鄂尔多斯盆地东部上石炭统铝土岩系岩性和孔隙特征,以揭示铝土岩系储集层形成演化过程。研究表明:(1)提出以铝的氢氧化物、铁矿物和黏土矿物三单元的... 详细信息

基于岩心观察、岩石薄片、X射线衍射、扫描电镜、低温气体吸附和等温吸附等实验,分析鄂尔多斯盆地东部上石炭统铝土岩系岩性和孔隙特征,以揭示铝土岩系储集层形成演化过程。研究表明:(1)提出以铝的氢氧化物、铁矿物和黏土矿物三单元的铝土岩系岩石学命名分类方案;(2)铝质泥岩产状主要为致密块状和碎屑状,(泥质)铝土岩多呈致密块状、豆状、鲕状、多孔土状和碎屑状,溶蚀孔、晶间孔和微裂缝是主要储气空间,孔隙度一般小于10%,以介孔为主;(3)华北地区铝土岩系纵向上总体上可分为5段,即铁岩(山西式铁矿,A段)、铝质泥岩(B段)、铝土岩(C段)、铝质泥岩(含碎屑)(D段)和暗色泥岩-煤岩段(E段);(4)在岩溶平台、缓坡和洼地分别发育潜穴/漏斗状、透镜状、层状/块状铝土岩沉积,岩溶平台及缓坡处有利于地表水淋滤,岩溶改造作用强,孔隙发育,储集层厚度大且物性好,但连贯性差,低洼处物性较差但储集层相对连续稳定。铝土岩天然气富集受源岩-储集层-裂缝综合控制,相关认识可为该层段和类似铝土岩系天然气勘探开发提供地质依据。

关键词：华北克拉通鄂尔多斯盆地东部上石炭统铝土岩系储集层特征形成模式天然气成藏

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Synthesis of Mullite from High-alumina Fly Ash:a Case from the Jungar Power Plant in Inner Mongolia, Northern China

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Acta Geologica Sinica(English Edition) 2008年第1期82卷 99-104页

作者： CHEN Jiangfeng shao longyi LU Jing Department of Resources and Environmental Engineering Henan Polytechnic University Jiaozuo Henan 454100 The State Key Laboratory of Coal Resources and Safe Mining the Department of Resources and Earth Sciences China University of Mining and Technology （Beijing） Beijing 100083

In this paper, an experimental study was conducted in order to test the feasibility of sintering mullite directly from the high-alumina fly ash, without adding any extra material. The results show that the mullite contents in most sintered samples are over 70%. The samples sintered from the beneficiated fly ash have a higher content of mullite than those from the as-received fly ash under the same synthetic conditions. To obtain an equal amount of mullite, a higher sintering temperature is needed for the beneficiated fly ash than for the as-received fly ash. Considering the physical properties of sintered mullite, the favorable sintering temperature is 1400℃ for the as-received fly ash and 1500℃ for the beneficiated fly ash. A higher sintering temperature and a shorter holding time are profitable to sintering mullite. The orthogonal test confirmed that the dominant factor affecting mullite synthesis is sintering temperature, and that the most profitable matching conditions are 200 MPa-1500℃-3 h for the as-received fly ash and 200 MPa-1500 ℃-4 h for the beneficiated fly ash.

关键词： high-alumina fly ash sintering temperature mullite orthogonal test

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Coalbed methane enrichment model of low-rank coals in multi-coals superimposed regions: a case study in the middle section of southern Junggar Basin

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Frontiers of Earth Science 2021年第2期15卷 256-271页

作者： Haihai HOU Guodong LIANG longyi shao Yue TANG Guangyuan MU College of Mining Liaoning Technical UniversityFuxin 123000China College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijing 100083China Oil&Gas Resource Survey Center China Geological SurveyMinistry of Land and ResourceBeijing 100029China

The Middle Jurassic Xishanyao Formation in the central section of the southern Junggar Basin has substantial amounts of low-ranked coalbed methane(CBM)recourses and is typically characterized by multi superimposed coal *** establish the CBM enrichment model,a series of experimental and testing methods were adopted,including coal maceral observation,proximate analysis,low temperature nitrogen adsorption(LTNA),methane carbon isotope determination,porosity/permeability simulation caused by overburden,and gas content *** controlling effect of sedimentary environment,geological tectonic,and hydrogeological condition on gas content was analyzed in *** results demonstrate that the areas with higher gas content(an average of 8.57 m3/t)are mainly located in the Urumqi River-Santun River(eastern study area),whereas gas content(an average of 3.92 m3/t)in the Manasi River-Taxi River(western study area)is relatively *** of the combined effects of strata temperature and pressure,the gas content in coal seam first increases and then decreases with increasing buried depth,and the critical depth of the inflection point ranges from 600 m to 850 *** by the changes in topography and water head height,the direction of groundwater migration is predicted from south to north and from west to *** on the gas content variation,the lower and middle parts of the Xishanyao Formation can be divided into three independent coalbearing gas *** a single gas-bearing system,there is a positive correlation between gas content and strata pressure,and the key mudstone layers separating each gas-bearing system are usually developed at the end of each highstand system *** new CBM accumulation model of the multi-coals mixed genetic gas shows that both biological and thermal origins are found in a buried depth interval between 600 m and 850 m,suggesting that the coals with those depths are the CBM enrichment horizons and favorable exploration regions

关键词： Xishanyao Formation multi-coal seams superimposed region low rank coal main controlling factors enrichment model

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SHRIMP dating of volcanic rock in the Zhangwu-Heishan area, West Liaoning province, China: Its relationship with coal-bearing strata

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Mining Science and Technology 2011年第5期21卷 701-708页

作者： Cai Houan XU Debin Li Baofang shao longyi State Key Laboratory of Coal Resources and Safe Mining China University of Mining ＆ Technology Beijing 100083 China College of Energy China University of Ceosdences Beijing 100083 China College of Earth Sciences China University of Geosciences Beijing 100083 China

The Zhangwu-Heishan area is located to the east of the Fuxin-Yixian Basin and is mostly covered with volcanic rock. At various periods, different geologists had varying opinions about their age and periods of volcanic eruptions, especially on sequences between volcanic rock and main coal-bearing strata, which affect the direction of searching for coal, as well as prospecting the entire research area. During our study, we carried out detailed field investigations in this research area： observed and recorded the main representative outcrops of volcanic rock. We collected over 20 volcanic rock samples and tested the Sensitive High Resolution Ion Microprobe II （SHRIMP If） U-Pb isotope age of 11 samples. The age of our volcanic rock samples ranged between 56.0 ± 2.9 and 132.3 ± 2.3 Ma. After taking earlier investigations into consideration, we concluded that, except for a suite of paleogene olivine basalt, the volcanic rock in the Zhangwu-Heishan area is younger than the coal-bearing Shahai Formation. It is therefore most unlikely to find coal seams equivalent to those of the early Cretaceous Shahai Formation in Fuxin Basin below vol- canic rock.

关键词： West Liaoning provinceZhangwu-Heishan areaVolcanic rockSHRIMP U-Pb isotopic ageCoal-bearing strata

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Coal measure metallogeny:Metallogenic system and implication for resource and environment

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Science China Earth Sciences 2022年第7期65卷 1211-1228页

作者： Yong LI Songqi PAN Shuzheng NING longyi shao Zhenhua JING Zhuangsen WANG China University of Mining and Technology(Beijing) Beijing 100083China Research Institute of Petroleum Exploration and Development Beijing 100083China China National Administration of Coal Geology Beijing 100039China

Coal,coal measure gas,coal conversion to oil and gas,and coal-based new materials are reliable guarantees for stable energy supply and economic and social development in *** coal-dominated resource endowment and the economic and social development stage determine the irreplaceable position of coal resources in the energy *** measure resources,including aggregated or dispersed solids,liquid and gaseous multitype energies,and metal as well as nonmetallic minerals,are the products of multisphere interaction and metallogenetic materials generation,migration,and *** measures record rich deep-time geological information of transitional and terrestrial peat bogs,which is a crucial carrier to reveal ecosystem evolution,significant organic carbon sequestration,atmospheric O_(2)/CO_(2)variation,and wildfire *** measure evolution is accompanied by the migration and transformation of various materials during diagenesis-metamorphism,forming differentiated coal compositions besides properties and various mineral resources in its adjacent *** enrichment condition,occurrence state,and separation potential are the premise for level-by-level use and efficient development of coal measure *** measure metallogeny is based on the metallogenic system of multiple energy and mineral resources in coal measures and their environmental *** understanding coal measure metallogeny is beneficial for promoting the coal transition from fuel to raw materials and strengthening its attribute of multiple mineral *** metallogeny comprises various aspects,including:(1)the symbiosis mechanism,co-exploration and co-mining conditions of various resources;(2)the source-sink system of ore-forming materials;(3)the differential carbon accumulation and hydrogen enrichment effect;(4)organic(coal and hydrocarbon)and inorganic(mineral)interactions;and(5)combination of minerals naturally enrichment during the metallogenic process and artificial

关键词： Coal geology Coal measure resources Coal measure critical metals Coal measure natural gas Earth system

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Sequence Stratigraphy of the Jurassic Coal Measures in Northwestern China

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Acta Geologica Sinica(English Edition) 2012年第3期86卷 769-778页

作者： WANG Tong shao longyi TIAN Ye LU Jing WANG Wenlong College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijing 100083China China Administration of Coal Geology Beijing 100391China

The sequence stratigraphy of the Jurassic coal measures of northwestern China has been studied based on data from outcrop and borehole sections. Because of the geological background and the diversity of basin types, such as isochronisms of coal seams and recognition of key sequence boundaries, it is rare to summarize and correlate sequence structure and framework. The types and recognition characteristics of the sequence boundaries of the Jurassic coal measures are revealed by comparing climatic characteristics, structural styles and the base level cycle. A total of five third-order sequences and 15 systems tracts have been subdivided and the sequence stratigraphic framework has been reconstructed confirming that the thick coals accumulated in the late stage of transgression system tracts of sequence I （SQ I） and sequence III （SQ III）. This idea is of important academic significance for instructing coal resources exploration, and enhancing geological effects of prospecting engineering. It is also of practical significance for guaranteeing construction of the large-scale coal production base in northwestern China, accelerating the westward development of the coal industry stratagem.

关键词： depositional system sequence stratigraphic characteristics Jurassic (Hettangian–Callovian) coal basins northwestern China

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Mineralogical characteristics of airborne particles collected in Beijing during a severe Asian dust storm period in spring 2002

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Science China Earth Sciences 2007年第6期50卷 953-959页

作者： shao longyi LI WeiJun YANG ShuShen SHI ZongBo LÜ SenLin The State Key Laboratory of Coal Resources and Safety Mining China University of Mining and TechnologyBeijing 100083China Department of Resources and Earth Sciences China University of Mining and TechnologyBeijing 100083China Faculty of Environmental and Symbiotic Sciences Prefectural University of KumamotoKumamoto 862-8502Japan

Asian dust storm (ADS) samples were collected on March 20,2002 in Beijing,China. High-resolution field emission scanning electron microscopy with energy dispersive X-ray detector (FESEM-EDX) and X-ray diffraction (XRD) were used to study the morphology,chemical compositions,number-size dis-tributions and mineralogical compositions of ADS particles. The mineral particles were major compo-nents in the ADS samples,accounting for 94% by number. The XRD analysis indicated that the dust particles were dominated by clay (40.3%),and quartz (19.5%),followed by plagioclase (8.4%),calcite (7.5%),K-feldspar (1.5%),hematite (0.9%),pyrite (0.9%),hornblende (0.4%) and gypsum (0.3%),with a certain amount of noncrystalline materials (20.3%). Clay minerals were mainly illite/smectite mixed lay-ers (78%),followed by illite (9%),kaolinite (6%),and chlorite (7%). In addition to these main minerals,FESEM-EDX also detected some trace minerals,such as dolomite,pyrite,thenardite,as well as heavy minerals represented by rutile,ilmenite and apatite. The mineralogical compositions of the 2002-03-20 Asian dust storm and the Saharan dust plumes were similar but the clay mineralogy showed a great distinction,with the illite/smectite mixed layers being common in the Asian dust storm but illite being common in the Saharan dust plumes.

关键词： Asian dust storm (ADS) inhalable particle (PM10) X-ray diffraction (XRD) individual particles analysis Beijing

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Paleo-fires and Atmospheric Oxygen Levels in the Latest Permian:Evidence from Maceral Compositions of Coals in Eastern Yunnan,Southern China

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Acta Geologica Sinica(English Edition) 2012年第4期86卷 949-962页

作者： shao longyi WANG Hao YU Xiaohui LU Jing ZHANG Mingquan State Key Laboratory of Coal Resources and Safe Mining and School of Geosciences and Survey EngineeringChina University of Mining and Technology Institute of Disaster Prevention Coal Geology and Prospecting Institute of Yunnan Province

Inertinite maceral compositions of the Late Permian coals from three sections in the terrestrial and paralic settings of eastern Yunnan are analyzed in order to reveal the paleo-fire events and the atmospheric oxygen levels in the latest Permian. Although the macerals in the studied sections are generally dominated by vitrinite, the inertinite group makes up a considerable proportion. Its content increases upward from the beginning of the Late Permian to the coal seam near the Permian- Triassic boundary. Based on the microscopic features and the prevailing theory that inertinite is largely a by-product of paleo-fires, we suggest that the increasing upward trend of the inertinite abundance in the latest Permian could imply that the Late Permian peatland had suffered from frequent wildfires. Since ignition and burning depend on sufficient oxygen, a model-based calculation suggests that the 02 levels near the Wuchiapingian/Changhsingian boundary and the Permian-Triassic boundary are 27% and 28% respectively. This output adds supports to other discoveries made in the temporal marine and terrestrial sediments, and challenges the theories advocating hypoxia as a mechanism for the PermianTriassic boundary crisis.

关键词： coal maceral inertinite paleo-atmospheric oxygen level wildfire Permian-Triassic boundary

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