MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Distribution of calcite mines in northwest China
In situ LAICPMS UPb dating and geochemical ScienceDirect
2021年5月5日 In this study, we aim to use results of in situ LAICPMS U Pb dating and trace element analysis of calcite from two borehole cores (TZ2 and TZ4 in Fig 1 b and c) within one 2020年11月27日 A recent study by Gao et al (2020) mapped the distribution of the paleoclimatic indicators in the Junggar Basin and adjacent Turpan Basin in the Permian period and found that evaporite minerals were mainly formed in Hydrothermal mineral assemblages of calcite and Origin of oreforming fluids of the ZnPb(Cu) deposits in the Jinbao mine district of eastern Guizhou Province, China: Evidence from chemical compositions of fluid inclusions and their lithium isotopesCalcite from China mindat2013年10月1日 In this review, we describe the geological characteristics and metallogenic–tectonic origin of Fe deposits in the Altay orogenic belt within the Xinjiang region Review A review of the geological characteristics and
Geological Survey and Prospecting of Strategic
To comprehensively summarize the metallogenic regularities and resource potentials of important metallogenic belts in Northwest China, this article divides the major achievements of geological surveys in Northwest China into three 2015年11月24日 Using Fourier transform infrared spectroscopy, we generated a highresolution record of dolomite and calcite contents from eight sections on the Chinese Loess Plateau spanning the last 130 kyrDolomite abundance in Chinese loess deposits: A new 2021年4月14日 Kaolinitic claystone is abundantly present in Upper Paleozoic coalbearing strata in northern China In the Datong Coalfield, such deposits are found in coal swamp basins of Mineralogy, Geochemistry, and Genesis of Kaolinitic Claystone 2022年12月27日 Four largegrain calcite crystals from Fujian, China, were used for a detailed study This study provides a comprehensive data set through mineralogical standard (PDF) Mineralogical Characteristics Study of Calcite from the Fujian
Mineralogical Characteristics Study of Calcite from the
2022年12月27日 Four largegrain calcite crystals from Fujian, China, were used for a detailed study This study provides a comprehensive data set through mineralogical standard properties and spectral characteristics, including 2023年3月1日 Methane (CH 4) is a common greenhouse gas that plays an important role in global warming and affects people's production and lifeIn order to study the temporal and spatial distribution situation of methane concentration in northwest China (Shaanxi, Gansu, Ningxia, Xinjiang, Qinghai), this article used L4B level data products monitored by GOSAT satellite Spatial and Temporal Distribution of NearSurface Methane 2018年4月27日 Elevated fluoride (F) concentration in groundwater is posing a public health risk in the Manas River Basin (MRB), Northwest China Based on the characterization of regional groundwater flow, 90 groundwater samples from aquifers were analyzed, along with topsoil leachate and porewater samples from aquitards Stable oxygen (δ18O) and hydrogen Distribution and migration mechanism of fluoride in groundwater The US Geological Survey (USGS) Mineral Resources Data System catalogs information about mineral resources around the United States and the world Using the map tool, users can zoom in to obtain reports and data on past and present mines, mine prospects, and processing plants All of the data can be downloaded for further use and analysis The image above comes from the Interactive map of mineral resources and mines across the
Geochemistry, Hydraulic Connectivity and Quality Appraisal of
2018年1月3日 This study assessed the geochemistry and quality of groundwater in the Hongdunzi coal mining area in northwest China and investigated the mechanisms governing its hydrogeochemistry and the hydraulic connectivity between adjacent aquifers Thirtyfour groundwater samples were collected for physicochemical analyses and bivariate analyses 2024年6月24日 Study area The study area is situated in the north of the Miyun (Beijing, China), upstream of Miyun Reservoir (11688–11755 E, 4042–4071 N) (Fig 1a) The Chaohe River watershed (400 km 2) is located within the Yanshan Mountains, and exhibits a northwest to southeast decrease in terrain elevationThe landforms in the area are primarily shaped by Distribution and migration characteristics of heavy metals around 2017年3月29日 Investigations on rare earth and trace element variation were conducted using ICPMS on constituent minerals and bulkrock from the South Nam Xe calcio and ferrocarbonatites(PDF) Distribution of Rare Earth Metals in the South Nam Xe 2016年1月25日 Purpose Heavy metal pollution is of major concern due to its potential threat to ecosystem safety and human health To give a valuable insight into the status of heavy metal pollution in a sewage irrigation region in northwest China, this paper thoroughly studied the spatial distribution and possible source of heavy metals in soils under different land uses Materials Spatial distribution and source identification of heavy metals in
Hydrogeochemistry and groundwater quality assessment of high
2018年10月1日 Hydrogeochemistry and groundwater quality assessment of high fluoride levels in the Yanchi endorheic region, northwest China October 2018 Applied Geochemistry 年4月29日 In recent years, a large number of in situ hydraulic fracturing stress measurements in deep boreholes in the study area have also shown that the direction of the regional stress field is NEE to (PDF) In Situ Stress State of the Northwest Region of the Jiaodong 2013年8月1日 Distribution map of molybdenum deposits in China The tectonic framework is modified from Ma et al (2002b), Pan et al (2009), and Zheng et al (2012)(PDF) Types, characteristics, and time–space Jun Liu, Guang Wu, Wei Zhong, and Mingtian Zhu (2009): Acta Petrologica Sinica 25(10), 26312641; Derong Li, Fulin Lü, Suying Liu, and Jun Lü (2011): Geology in China 38(2), 415426; Pengrui Lü, Xuexiang Gu, Derong Li, Taotao Peng, Calcite from China mindat
Distribution of In Situ Stress in Northwest Jiaodong Peninsula
2022年9月26日 Linglong gold mine, and Xincheng gold mine provide im portant support for this paper e research results fill the gaps in the characteristics of in situ stress in the Jiaodong2023年1月1日 Coal mine, accounting for >60 % of energy production and consumption, is China's primary source of energy (Liu et al, 2020a)However, coal mines and water resources show an inverse distribution in China; namely, coalrich areas are extremely short of water resources (Wu et al, 2017)For example, waterscarce arid and semiarid regions in western Geochemical fingerprint and spatial pattern of mine water quality 2017年7月1日 Abstract: The stratigraphic and facies distribution of 20 calcimicrobial genera (including calcified cyanobacteria and associated problematic calcified microfossils) are reported for the entire Ordovician succession in the Tarim Basin in northwestern China based on examination of drill cores and 8500 thin sections from 64 wells from the Tabei, Bachu, PALEOENVIRONMENTAL DISTRIBUTION OF ORDOVICIAN 2024年2月23日 A total of 18 samples of shallow groundwater around the Hancheng mining area in the Guanzhong Basin were collected from 1–4 May 2018 According to the analysis of hydrochemical data, the Gibbs semilogarithmic diagram and Piper diagram were used to research the hydrogeochemical behavior of shallow groundwater around the Hancheng mining Hydrogeochemical Behavior of Shallow Groundwater around
Statistical analysis of distribution patterns of coal seams in fold
2018年9月1日 Based on the measured geological data of coal mines in fold areas in northwest China, statistical analysis was conducted in this paper on geometrical distribution of fold structures and mechanisms of changes of thickness of coal seams in coalbearing tectonic zones, identifying the structural development mechanisms, principal stress direction and coal 2014年1月15日 For example, the Dexing copper mine in Jiangxi province has the highest annual copper output in China and the second highest globally (HY Li et al, 2008); Shizhuyuan tungsten–tin bismuth molybdenum mine in Hunan province is the largest nonferrous metal mine in China (Lei et al, 2005); and Huayuan lead–zinc mine is the third largest reservoir of A review of soil heavy metal pollution from mines in China: 2020年9月1日 China enjoyed continuously increasing identified reserves of fluorite resources in recent years According to the statistics in the Summary of Reserves of China ’s Mineral Resources in 2018 issued by the Ministry of Natural Resources of the People ’s Republic of China, the identified reserves of fluorite resources (minerals, the same hereafter) in China was Fluorite deposits in China: Geological features, metallogenic 2024年1月1日 Northern Xinjiang in Northwest China, also known as the Xinjiang Central Asian Orogenic Belt (XCAOB), is an important part of the Central Asian Orogenic Belt (CAOB) It is a Paleozoic accretionary orogenic belt, comprising an accretionary collage of island arcs and continental fragments ( Xiao et al, 2009 , Xiao et al, 2013 , Pirajno et al, 2011 , Seltmann et A review of the geological characteristics and spatiotemporal
Spectral Exploration of Calcium Accumulation in Organic Matter in
2016年1月11日 Little attention has been paid to the accumulation of soil organic matter (SOM) in the fringes of the midlatitude desert In this paper, soil samples from a longterm field experiment conducted 2021年7月1日 In the present work, we profiled the heavy metal contents, microbiome and resistome of a mine tailing in Dexing Copper Mine, which is the largest openpit copper mine in China A total of 3975 Gb clean data was generated by metagenomics sequencing and taxonomy analysis revealed Actinobacteria , Proteobacteria , Acidobacteria , Euryarchaeota , and Characterizations of heavy metal contamination, microbial The northwest region of the Jiaodong Peninsula has a complex geological environment that experiences frequent microseismic activity In situ stress magnitudes and orientations in three underground gold mines (ie, Sanshandao, Xincheng, and Linglong gold mines) were obtained by an improved overcoring technique with a hollow inclusion strain gauge from 53 measuring In Situ Stress State of the Northwest Region of the Jiaodong 2020年12月5日 The locations of the 58 sampled mine areas in eastern China were categorized into six climatic regions: northeast China (NE, arid and semiarid temperate climate), north China (NC, subhumid and temperate climate), northwest China (NW, temperate continental climate), southwest China (SW, subtropical highland climate), south of Yangtze River in China (SY, Factors influencing heavy metal availability and risk assessment
Microbial Remediation of Heavy Metals and ArsenicContaminated
2018年1月18日 Mine tailings are important sources for heavy metal contamination in Northwest China due to longterm exploitation of mineral resources Metallic mine tailings usually contain high concentrations of metals such as Cu, Pb, Zn, Hg, Cd, Cr, and As Mine tailings are usually piled up in open air without any preventive measures against leaching and wind erosion in 2017年9月14日 Northwest China Wang Furong, 1 He Sheng, 1 Hou Yuguang, 1 Dong Tian, 2 and He Zhiliang 3 1 K e yL a b o r a t o r yo fT e c t o n i c sa n dP e t r o l e u mR e s o u r c e s ,C h i n aU n i v e r The Distribution and Origin of Carbonate Cements in Deep 2023年1月30日 In grassland systems of the semiarid mining area, the migration, accumulation, and bioavailability of potentially toxic elements (PTEs) are important ecological and health risk issues Thirtyeight pairs of topsoil (0–20 cm) and plant samples were collected around Baiyin City and in Dongdagou stream valley to investigate the migration of PTEs in soils, transfer of PTEs Migration, accumulation, and risk assessment of potentially toxic 2018年3月7日 The Angouran Mine, located in northwest Iran, is the largest Zn–Pb producer in the Middle East This study was designed to investigate the distribution, geochemistry, and mineralogy of the aerosols in the mining area and to assess their likely health impacts on the local residents For this purpose, 36 aerosol samples were collected from 2014 to 2015 at nine sites Distribution, geochemistry, and mineralogy of aerosols in the
Using stable isotopes (δD, δ18O, δ34S and 87Sr/86Sr) to identify
2018年5月31日 Using stable isotopes (δD, δ 18 O, δ 34 S and 87 Sr/ 86 Sr) to identify sources of water in abandoned mines in the Fengfeng coal mining district, northern China Utilisation des isotopes stables (δD, δ 18 O, δ 34 S and 87 Sr/ 86 Sr) pour identifier l’origine de l’eau dans des mines abandonnées dans le district des mines de charbon de Fengfeng dans le Nord de la Chine2021年1月29日 There are two mines in Tieli: Xinxing Mine and Shenshu Mine Opencast mining is employed in Xinxing Mine (Fig 2a, b), and the exposed strata consist of the Lower Cambrian Qianshan Formation (Є 1 q) Sandstone, slate, and dolomite marble are produced as captive bodies, and the ore bodies are distributed from northwest to southeast, with a length greater Geochemical characteristics and composition changes of tremolite 2024年1月20日 Rare earth elements (REEs) have been used as tracers to reveal the hydrochemical sources and processes in groundwater systems that are usually modified by anthropogenic inputs However, the REE behaviors in groundwater affected by mining activities have yet to be fully understood In combination of REE geochemistry with general Rare earth element behaviors of groundwater in overlying aquifers Further, mine integration, green mining, cascade highvalue, and highefficiency utilization, optimization of the distribution system and park planning and development are described in detail according to the relevant laws and regulations on the highvalue and efficient utilization of resources, the relevant national industry standards of calcium carbonate and the carbonation Thoughts on the Development of Calcium Carbonate Industry and
Nationalscale distribution and its influence factors of calcium
2021年11月1日 Nationalscale distribution and its influence factors of calcium concentrations in Chinese soils from the China Global Baselines projectAccumulation, spatiotemporal distribution, and risk assessment of heavy metals in the soilcorn system around a polymetallic mining area from the Loess Plateau, northwest China Article Nov 2017Shengli WANG PhD Lanzhou University, Lanzhou ResearchGate2023年2月1日 The type of minerals in sediments control the geochemical distribution of metals which serve as an indicator of the pollution status to the marine environment(PDF) Distribution of metals in coastal sediment from northwest 2023年11月1日 Temporal variation of groundwater hydrochemistry and water stable isotopes under longterm mining disturbance in a coal mine, northwest China Author links open overlay The working face distribution in Ningtiaota coal mine was depicted in Fig 1 b Download such as dissolution of calcite and dolomite (Kalteh et al, 2008 Temporal variation of groundwater hydrochemistry and water
Inorganic Phosphorus Distribution in Soil Aggregates Under
2019年2月11日 Accurate information on soil inorganic phosphorus (Pi) is crucial for the sustainable development of agriculture in arid regions An experiment was conducted to investigate the effect of cropping patterns on Pi concentrations in soil aggregates from the 0–10 cm depth in northwest China The three cropping patterns were as follows: continuous cotton 2024年10月18日 The geochemistry on the coalbearing strata of the Upper Paleozoic in northern China and the Ordos Basin was studied by Fu and Zhao [30,31], respectivelyIn addition, Liu et al found that variations in the sedimentary environment of the Ningdong Coalfield controlled differences in the geochemistry of the coal seam in the Yan’an Formation []Geochemistry and Mineralogy of Upper Paleozoic Coal in the2017年9月20日 To assess spatial distribution of heavy metals and the influences of mining activities on geochemical behavior of heavy metals in soils, soil samples with depth of 0–10, 10–20, and 20–30 cm at each site were collected from different directions in the vicinity of three mines (coal mine, gold mine, and fluorite mine) in a typical steppe zone of Inner Mongolia, ChinaThe spatial distribution and accumulation characteristics of heavy productivity in coal mines This study investigated the distribution characteristics of fold structures in coal seams in fold zones in four mines in northwest China Geometrical characteristics of fold structures in coal seams and changes of coal thickness were analysed, based on comprehensive evaluation indexes,Statistical analysis of distribution patterns of coal seams in fold