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

The quantitative estimation of key parameters of paleotemperature and paleoprecipitation is crucial for paleoclimate reconstruction.Geochemical data from mod-ern sediments are highly consistent with climate data,and their relationship can provide an important reference for the quantitative reconstruction of the paleoclimate.In this study,detailed inorganic geochemical analysis was carried out using high-precision sampling of the Paleogene(LFD-1 well)Guchengzi,Jijuntun and Xiloutian Formations in the Fushun Basin located in the mid-latitudes of the Northern Hemisphere.The Eocene Guchengzi Formation(54.51–47.8 Ma)and Jijuntun Formation(47.8–41.2 Ma)in the Fushun Basin were found to have been deposited under a humid climate.The lower(41.2–40.1 Ma)and upper(40.1–37.8 Ma)parts of the Xiloutian Formation were character-ized by semiarid and semihumid–semiarid climates,respec-tively,which is very similar to the paleoclimatic information reflected by organic carbon isotopes.The Eocene Thermal Maximum 2(ETM2,~53.7 Ma),Early Eocene Climatic Optimum(EECO,~53.1–46.5 Ma),Eocene Thermal Maxi-mum 3(ETM 3,~52.8 Ma),and Middle Eocene Climatic Optimum(MECO,~40.7–40.1 Ma)events significantly enhanced chemical weathering during these periods.The rapid increase in pCO_(2)concentration leads to an increase in temperature,precipitation,and surface runoff,exhibiting strong chemical weathering.The mean annual temperature(MATa)and mean annual precipitation(MAPa,MAPb,and MAPc)were estimated using parameters,such as the corrosion index without potassium(CIA-K),CaO/Al_(2)O_(3),and(Na_(2)O+K_(2)O)/Al_(2)O_(3).Comparing MAPa,MAPb,and MAPc with the MAP estimated using pollen data,MAPa and MAPb were found to be more sensitive to the climate during high precipitation periods(precipitation>1000 mm,Guchengzi Formation),and the recovered average precipi-tation was similar to MAP.In contrast,MAPc was more sensitive to the climate during low precipitation periods(precipitation<1000 mm,Jijuntun,and Xiloutian Forma-tions),with higher accuracy.To fully consider the influence of soluble inorganic salts Ca^(2+)and Na^(+),multivariate linear equations of CIA-K and CaO/Al_(2)O_(3)with CIA,and CIA-K and CaO/Al_(2)O_(3)with MAP were constructed,namely MAPd and MAPe.The results show that MAPe has the highest per-formance and can be effectively used to estimate the change of paleoprecipitation in Northeast Asia.

SPATIAL-TEMPORAL VARIATION OF HEAVY METAL ELEMENTS CONTENT IN COVERING SOIL OF RECLAMATION AREA IN FUSHUN COAL MINE

Grid method is employed for sampling covering soil at the test field,whic h is reclamation area filled by coal mining wastes for cropland in th e Fushun coal mine,Liaoning Province,the Northeast China.The soil samp les are taken at different locations,inclu ding three kinds of covering soil,th ree different depths of soil layers a nd four different covering ages of covering soil.The s patial-temporal variation of heavy metal element content in reclamatio n soil is stud-ied.The results indicate that the co ntent of heavy metal elements is decreasing year after year;the determin ant reason why the content of heavy metal elemen ts at 60cm depth layer is higher than t hat at 30cm depth layer and surface is fertiliz-er and manure application;the metal elements mainly come from external environment;there is no metal pollut ion coming from mother material(coal mining wastes)in plough layer of covering soil.

The Utilizing of Agro-climatic Resources and Preventing Measures of Meteorological Disasters in Fushun

Based on the meteorological data in Fushun,Qingyuan and Xinbing from 1961 to 2008,the status quo of major agro-climatic resources in Fushun were analyzed.The abundant rainfall,sufficient sunshine and rich thermal resources were suitable for the development of modern agricultural production.The specific measures of effective use of climate resources were put forward according to geographical location and climatic characteristics of Fushun.The advantages of agro-climate resources were exerted for large edible fungi industry;effective accumulated temperature was applied for adjustment of plantation structure;three-dimensional agriculture in the mountainous area was developed vigorously.The main types of meteorological disasters constraining agricultural development in Fushun and their hazards were summarized,including droughts,floods,hail,etc.In addition,some scientific preventing measures of meteorological disaster were proposed.

Preliminary Study on PAHs Distribution in High-grade Oil Shale and Its Spontaneous Combustion Product in Fushun,Liaoning Province

Spontaneous combustion of oil shale is very common as a result of long-time exposure to the air in the Fushun West Open-Pit Mine and West Dump. The PAHs in the high-grade off shale and its spontaneous combustion product were analyzed semiquantitatively by GC-MS in order to investigate their distribution in different states and their potential negative effects on the environment. Totally 57 and 60 PAHs and their alkyl homologues were identified in the two analyzed samples, among which the alkyl derivatives were predominant, taking up to about 65% in the total PAHs. Those low-molecular mass PAHs （3- or 4-ring） were the main compounds in the two samples. Ten of sixteen USEPA priority pollutant PAHs were detected in two samples, of which phenanthrene was the richest whose contents were 6.93% and 15.03%. Based on comparison of analysis results, the amount and contents of PAHs, except for triaromatic steroid group, were higher in the burning oil shale. So it can be determined that the effects caused by spontaneous combustion of oil shale would be more serious and that the effects of the Fushun oil shale and its spontaneous combustion on the environment should not be ignored in the future work.

Response Mechanism of Water Ecosystem under the Influence of Urbanization: A Case Study of the Connection Zone between Shenyang and Fushun

Taking the connection zone between Shenyang and Fushun as an example,urbanization indicator system was established from the aspects of population,economy,space and society,and the comprehensive evaluation indicator system of water ecological environment was also established from the aspects of water ecological environmental pressure,state and response. Based on the evaluation of comprehensive level of urbanization and the comprehensive quality of water ecological environment,their changing trends during 2000-2014 were analyzed,and the response model between them was established. The composite index of urbanization in the connection zone between Shenyang and Fushun always increased from 2000 to 2014,and urbanization developed rapidly after 2004. The comprehensive quality of water ecological environment decreased firstly and then increased during 2000-2014. The response relationship between urbanization comprehensive index and water ecological comprehensive index during 2000-2014 could be expressed by a cubic curve.

Impact of Abnormal Climate on Agriculture in Fushun City in 2010

[Objective] The aim was to study the influence of abnormal climate in Fushun City in 2010 and its influences on agriculture.[Method] In response to the abnormal climate in Fushun in 2010,the atmosphere circulation characteristics of abnormal climate and their influences on each aspect of agriculture were expounded.[Result] The abnormal weather in Fushun City in 2010 was as follows:extreme low temperature in spring,much precipitation,more precipitation in each month,less sunshine hours,abnormally less precipitation in July and August,having five times of heavy rain.The main atmosphere circulation features were extreme strong of vortex in March and frequent cold air activity;strong high pressure ridge in Mountain Ural in Middle April,west and strong east Asian Trough and strong front in middle and north part of Asia;middle and high latitude in Asia in May was wide trough region.The subtropical high ridge of the north front was more north than that in other common years and the position of west ridge was more conductive to the transportation of water vapor and formation of rain;because of extreme strong vortex in July and August,subtropical high was conductive to the cold air in the north moving south and the transportation of south water vapor.The extreme climate brought adverse influences on each aspect of agriculture and resulted into large economic losses.[Conclusion] The study provided references for the improvement of abnormal climate forecast and disaster prevention capacity.

Agro-climatic Division of Rana chensinensis in Fushun

Based on data collected by 3 basic weather stations in Fushun City and 47 automatic weather stations in the whole region,we selected indexes suitable for agro-climatic division of Rana chensinensis,and carried out a study on agro-climatic division of Rana chensinensis in this region.Annual active accumulated temperature ≥10 ℃ and precipitation during April and September are used as basic calculation factors,and we use climatic aridity to make climatic division of Rana chensinensis in Fushun City.According to relevant indexes,we divide Fushun City into 3 regions,namely most appropriate,appropriate and general regions.Finally,countermeasures and suggestions are put forward for providing reference for agricultural production.

Study on fluid inclusions of Qiangsheng gold deposit in Fushun of Liaoning

The Qiangsheng gold deposit belongs to quartz vein type. The fluid inclusions consist of four types： aqueous single-phase inclusions, aqueous two-phase inclusions, carbonated two-phase inclusions and carbona- ted three-phase inclusions. The fluid inclusions are characterized by low salinity （5%-9% NaCl eqv） , low density （0.66-0.72 g/cm^3 ） and medium temperature （210℃-250℃）. The pressure of ore-forming is 60-95 MPa and the metallogenic depth is about 5.49-7.56 km. During the mineralizing process, ore-forming fluid under- went fluid unmixing in CO2-H2O-NaCl system. The stable isotope resuhs indicate that the ore-forming fluids mainly generated from mantle, with the participation of a small amount of atmospheric water. Comprehensive studies have suggested that Qiangsheng gold deposit belongs to the type of mesothermal hydrotherm with mantlederived fluid participating in mineralization.

Fushun Steel Plant

Fushun Steel Plant is situated at thewestern part of Fushun city, Liaoning Pro-vince, 45 km from Shenyang. It is one ofthe major special steel plants in China.Established in 1937, Fushun Steel Planthas had a history of more than half century.Before 1948 it was a small-scale plant.From 1937 to 1948 the total steel productionwas only 58000 t. After foundation of PRCthere have been two stages of reconstruction;after the 1st stage (1958 to 1962) the plantbecame the first production base of su-peralloy and stainless steel in China: from1978 to 1983 (second stage) five sets oflarge advanced melting and hot workingequipment and ten sets of measurement

Study on dynamics of tectonic evolution in the Fushun Basin, Northeast China

The updated study shows that the taphrogenesis of basement of the Fushun Basin is not a kind of instantaneous process. It intensified gradually and went to extreme in the sedimentary stage of the Guchengzi formation, and then, it weakened rapidly and stopped soon afterwards; the depression did not take place after the taphrogenesis. On the contrary, it almost happened simultaneously with the taphrogenesis. The depression went at a high speed from the beginning of the sedimentary period of the Xilutian formation, and then weakened gradually in the sedimentary period of the Gengjiajie formation. The evolution course of the synsedimentary structure of the Fushun Basin can be summarized as the following six stages: slow taphrogenesis and high speed depression to accelerated taphrogenesis and high speed depression to high speed taphrogenesis and high speed depression to retarded taphrogenesis and high speed depression to gradual halt of taphrogenesis and reduced depression to slow depression and gradual halt of depression. The tectonic evolution resulted in the formation of the 'lower taphrogenesis and upper depression' structure. The formation of the binary structure might be due to the suspension of taphrogenesis and the change of the regional structure stress field, but the depression kept going. The result of calculation combining the analysis of the synsedimentary structural frame, the back-stripping method of the subsidence history of the basin basement and the simulation of thermo-settlement history indicates that the great sedimentary space required by the 'upper depression part' consists of two parts, namely, 40% from compaction of sediments and 60% from slow depression of the basin basement during a long period of time. Gradual halt of the depression in the Fushun Basin may be attributed to the reversal of the lithosphere hot-recession and gravity isostasy adjustment which may be the result of new hot-events in the depths and accompanied invasion of extremely thick diabase sill, thus revealing a new forming mechanism of 'fault subsidence at the base and depression on the top' structure.

Genetic model for slump coalbed and extrathick coalbed from Fushun Basin, Northeast China

Coalbed genesis study is the theoretical basis for coal geology and sedimentology. It has been suggested that the most economic coalbeds are formed in situ. However, the author discovered a large number of syndepositional slump coalbeds with main allochthonous components and associated gravity-influenced muddy interlayers for the first time in the extrathick coalbeds from the Fushun Basin, and established a new coal-forming model.

辽宁抚顺和新疆吉木萨尔煤精的显微组成和拉曼光谱对比研究

煤精又称煤玉,是一种资源稀缺且价格昂贵的煤种,可作为工艺美术雕琢材料。采集了辽宁抚顺和新疆吉木萨尔这两个地区的6件煤精样品,测试分析了其煤岩煤质(显微组成、腐植体最大反射率、工业分析、元素分析)和拉曼光谱特征。研究结果表明6件煤精样品中显微组分均以腐植组为主,稳定组次之,惰质组含量最低,腐植体最大反射率(R_(o, max))介于0.41%~0.55%;抚顺煤精的稳定组以沥青质体和孢子体为主,而吉木萨尔煤精的稳定组则以角质体为主;这两个地区煤精的拉曼光谱特征差异显著,拉曼结构参数显著受控于煤岩煤质;煤精的拉曼光谱参数D_(1)峰与G峰的强度比(I_(D_(1))/I_(G))、面积比(A_(D_(1))/A_(G))均随稳定组含量增加而显著增大,随腐植组和惰质组含量的增加而明显减小;吉木萨尔煤精的I_(D_(1))/I_(G)和A_(D_(1))/A_(G)值均显著小于抚顺煤精,这是由于抚顺煤精中含有大量沥青质体和孢子体,其大分子结构的芳环生长程度较差;这两个地区煤精的I_(D_(1))/I_(G)和A_(D_(1))/A_(G)值均随着R_(o, max)增大呈现差异化降低趋势;随着煤化程度增大,芳香层片空间排列有序化增强。拉曼光谱参数可有效指示不同产地煤精的大分子结构差异性,可为今后煤精类文物的产地溯源提供科学依据,进而为了解中国古代手工业发展史及商品流通提供启示。

露天煤矿废弃地自然资源价值识别与评估方法研究

随着经济转型升级与煤炭资源的枯竭,露天废弃矿坑的二次开发利用成为资源型城市获得增量空间资源的新选择。基于科学的资源价值评价方法,提出了露天煤矿废弃地资源价值识别与定量评估的理想模型和技术方法路线,并以抚顺西露天矿各类资源的评估为案例,直观展示了西露天矿的自然资源情况。通过研究可知,西露天矿总价值约为24.4亿元,其中直接使用价值占99.57%。在各类价值中,第三产业价值超过了第一、二产业的价值,这也与目前西露天矿的生态修复及发展方向相匹配,验证了模型的有效性。

抚顺西露天矿内矿物自燃防治技术研究

针对抚顺西露天矿矿坑内自燃灾害频发并因此导致环境污染和生产安全的问题,现场取煤炭、油母页岩、干馏后油母页岩三种样品进行了实验室工业分析和高温程序升温实验,分别得到了工业分析成果和自燃过程中析出气体规律及放热特性,研究了矿物自燃机理,提出了露天矿自燃监测方法和适宜的防治技术措施。结果表明,煤样品挥发分最高,达到42%,而油母页岩和干馏残渣灰分均超过75%。孔径分布表明各矿物样品大孔和介孔占比很大,易发生氧气吸附作用,从表观结构特征解释了矿物易于氧化自燃的原因。各样品氧化升温过程中易于析出碳氧化合物和碳氢类化合物,气体的成分及浓度与温度密切相关。矿物氧化升温过程放出热量,助推自热进一步发展至自燃。露天矿自燃不仅造成生态环境影响,同时破坏优质煤炭资源,降低边坡强度,可能进一步引发滑坡等地质灾害。自燃监测方面,可采取红外热成像系统,辅助同位素测氡和钻孔测温相结合精准圈定高温自热区和自燃区,从而选取适宜的防治措施进行精准治理,有效地控制了矿坑内自燃的发展,对类似矿山自燃精准防治提供了参考经验。

抚顺地区满文碑刻的调查、整理与研究

以满文碑刻为研究对象,进行田野考察,对搜集到的碑刻资料进行整理研究。按碑刻撰写内容分类:主要有人物传记碑、纪事碑、纪功碑、实用性碑刻。按碑刻存佚情况分为两类:第一类为抚顺地区现存满文碑刻,除已经被相关部门登记保存的碑刻外,有新发现或未进行测量研究过的六通满文碑刻,这是本次搜集满文碑刻的重要发现成果。对这类满文碑刻,从形制、体量、文字分布、纹饰等情况进行梳理和汇总,同时结合方志、宗谱、目录、相关著作等对碑刻内容、碑主、归属进行认定。第二类为抚顺地区已经散佚的满文碑刻,通过相关文献钩沉采集,对碑体已经不存的满文碑刻进行著录,进一步丰富完善抚顺地区满文碑刻的相关信息。

抚顺煤田地区矿震特征、灾害机理的综述分析

矿震一直是严重威胁煤炭安全生产需亟待解决的灾害之一。本文通过梳理辽宁省抚顺煤田矿震记录,对该区矿震特征、类型以及诱发成因进行归纳总结,结合抚顺煤田治理研究现状,梳理出有效预防矿震灾害的措施和建议,对有效防治矿震灾害发生,保障生产安全具有一定的参考价值。

抚顺市大豆产业的发展现状、问题及对策

阐述抚顺大豆产业的发展现状,分析大豆产业中存在的问题,并在此基础上提出大豆产业应进一步向规模化、产业化发展的策略,旨在促进抚顺大豆产业持续稳定发展。

2017-2020年抚顺市农村土壤卫生监测结果分析及评价

目的了解2017-2020年抚顺市农村土壤卫生状况,为制定相关政策和评估土壤风险,提供具体的数据。方法监测分析2017年至2020年抚顺市农村土壤卫生的具体数据。随机选择20个监测点进行土壤监测,测定土壤中寄生虫、重金属等相关指标的含量。结果大窝棚村2020年铅含量达到645 mg/kg;中心屯村铅含量达到2035 mg/kg,镉含量达到1.22 mg/kg,其余各项指标均未超标。结论2017-2020年抚顺市农村土壤卫生状况整体良好,但是个别年份个别区域也有超标情况,须持续加强监测,防患于未然。

宝石的可持续设计初探——以抚顺琥珀碎料的首饰设计为例

抚顺琥珀作为一种地域性宝石资源,面临着资源枯竭问题。践行可持续发展之路,依托首饰设计赋能琥珀创新,是撬动抚顺琥珀产业转型的必由之路。本文梳理抚顺琥珀原料及市场现状,以琥珀碎料为切入点,发现其潜在的设计价值;结合碎料加工方法和组构形式,在实验的基础上提出琥珀碎料的设计方法;结合琥珀碎料首饰设计实践论证了抚顺琥珀碎料可持续设计的可行性,力图借助首饰设计为抚顺琥珀可持续发展提供一种新思路。