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1The Metallogenetic Regularities of Lithium Deposits in China显示文摘Lithium resources support the development of high-technology industries. China has abundant lithium resources which are mainly distributed in Tibet,Qinghai,Sichuan and Jiangxi. Salt lakes in China have significant lithium reserves,but lithium is mainly produced from hard rock lithium deposits because the extraction from salt lakes requires further improvements. The hard rock lithium deposits mainly occur in granitic pegmatite in the Altay region of Xinjiang and the Jiajika deposit in western Sichuan Province; they mainly formed in the Mesozoic and occurred in a relatively stable stage during orogenic processes. On the basis of the information from 151 lithium deposits or spots,14 lithium metallogenic series were identified,and granitic pegmatite,granite,and sedimentary types were considered to be the main prediction types of lithium resources. Twelve lithium mineralization belts were divided and a series of maps showing the lithium metallogenetic regularity in China were drawn. We conclude that the hard rock and brine type of lithium resources possibly have a similar lithium source related to magmatism. The metallogenic features of the lithium in China were related with the distinct history of tectonic-magmatic activity in China. This study benefits the assessment of,and prospecting for,lithium resources in China.LI Jiankang ZOU Tianren LIU Xifang WANG Denghong DING Xin 2015Acta Geologica Sinica(English Edition)2015,89,2:22
2Progress and Prospects of Salt Lake Research in China显示文摘China has unique salt lake resources, and they are distributed in the east of Eurasian salt lake subzone of the Northern Hemisphere Salt Lake Zone, mainly concentrated in the regions with modern mean annual precipitation lower than 500 mm. This paper preliminarily reviews the progress made in salt lake research in China for the past 60 years. In the research of Paleoclimate and paleoenvironment from salt lake sediments, a series of salts have been proposed to be indicators of paleoclimate, and have been well accepted by scholars. The chloride-sulfate depositional regions of the west Qaidam and the east Tarim have been revealed to be the drought center of China since the Quaternary, and more than 6 spreading stages of arid climate(salt forming) have been identified. Five pan-lake periods with highstands have been proved to exist during the late Quaternary on the Tibetan Plateau. In mineral resource prospecting and theories of the forming of salt deposits: the atlas(1:2500000) of hydrochemical zoning of salt lakes on the Tibetan Plateau has been compiled for the first time, revealing the zonal distribution and transition from carbonate type to chloride type from south to north and presenting corresponding mineral assemblages for different type of salt lakes; several large continental salt deposits have been discovered and the theory of continental potash deposition has been developed, including the salt deposition in deep basins surrounded by high mountains, the mineral deposition from multistage evolution through chains of moderate or shallow lakes with multilevels, the origin of potassium rich brines in gravel layers, and the forming of potassium deposits through the inheriting from ancient salt deposits, thus establishing the framework of 'Continental Potash Deposition Theory'; several new types of Mg-borate deposits have been discovered, including the ulexite and pinnoite bed in Da Qaidam Lake, Qinghai, the pinnoite and kurnakovite bed in Chagcam Caka, Tibet, the kurnakovite bed in Lake Nyer, and the corresponding model of borate deposition from the cooling and dissolution of boron rich brines was proposed based on principles of geology, physics and chemistry. The anti-floatation-cold crystallization method developed independently has improved the capacity of KCl production to 3 million tons per year for the Qarham, serving the famous brand of potash fertilizer products. One 1.2 million ton K-sulfate production line, the biggest in the world, has been built in Lop Nor, and K-sulfate of about 1.6 million tons was produced in 2015. Supported by the new technology, i.e. brine preparation in winter-cooling-solarization-isolation-lithium deposition from salt gradient solar pond' the highest lithium production base at Zabuye Lake(4421 m), Tibet, has been established, which is the first lithium production base in China that reaches the year production of 5000 tons of lithium carbonate. The concept of Salt lake agriculture(Salt land agriculture) has been established based on the mass growth of Dunaliella and other bacillus-algae and the occurrence of various halophytes in saltmarsh and salt saline-alkali lands, finding a new way to increase arable lands and develop related green industry in salt rich environments. Finally this paper presents some new thoughts for the further research and development on salt science, and the further progress in salt science and technology will facilitate the maturing of the interdisciplinary science 'Salinology'.ZHENG Mianping ZHANG Yongsheng LIU Xifang NIE Zhen KONG Fanjing QI Wen Jia Qingxian PU Linzhong HOU Xianhua WANG Hailei ZHANG Zhen KONG Weigang LIN Yongjie 2016Acta Geologica Sinica(English Edition)2016,90,4:15
3Flake tantalum powder for manufacturing electrolytic capacitors显示文摘The FTP200 flake tantalum powder was introduced.The microstructures of the powder with leaf-like primary particles having an average flakiness of 2 to 20 and porous agglomerated particles were observed.The chemical composition,physical properties,and electrical properties of the FTP200 powder were compared with those of the FTW300 nodular powder.The FTP200 powder is more sinter-resistant,and the surface area of the flake tantalum powder under sintering at high temperature has less loss than that of the nodular tantalum powder.The specific capacitance of the flake tantalum powder is higher than that of the nodular tantalum powder with the same surface area when anodized at high voltage.Thus,the flake tantalum powder is suitable for manufacturing tantalum solid electrolytic capacitors in the range of median and high(20-63 V) voltages.HE Jilin YANG Guoqi PAN Luntao LIU Hongdong BAO Xifang 2008Rare Metals2008,27,1:13
4Regional Distribution and Prospects of Potash in China显示文摘中国被几小大陆人块(cratons ) 的合并形成,微,在不同 paleoclimatic 背景的块和 orogenic 带。它可以与另外的大陆人块被相关,但是有它的自己的特定的特征;因此中国的水兵和大陆人的构造环境盐的盆和盐,和钾碱,形成环境有一些特定的特征:部件材料的盐,形成的进程和差异的盐形成,在盐的差别,形成的年龄,移植和集中的多重阶段,以及海洋的盐的盆的小尺寸和在丰富的液体矿物质资源的迟了的阶段和出现的盐的盆的大变化。构造地下室的性质在钾碱盆的形成上施加了关键控制效果。稳定的构造区域为在伪,稳定的区域,和伪的钾碱集中是有利的,并且伪马厩区域在一个本地稳定的构造区域为盐集中和钾碱形成是有利的。大多数中国的主要的古老的盐的盆发生在伪, cratons (大陆人块) ;特别所有海洋的盐的盆与前寒武纪的地下室发生在大陆人块。这些区域是为钾碱搜索的关键的。最相对大,可溶的盐扔的规模在相对稳定的大陆人原子核被开发。根据中国是咸的构造领域的特征,形成盆被定位,诺思中国, Yangtze 和 Tarim, Qaidam 盐 minerogenetic 领域和北 Qiangtang,西方的云南盐 minerogenetic 带可以被区分。他们的盐和钾碱前景将独立被讨论。ZHENG Mianping ZHANG Yongsheng YUAN Heran LIU Xifang CHEN Wenxi LI Jinsuo 2011Acta Geologica Sinica(English Edition)2011,85,1:12
5Effects of five-element music therapy on elderly people with seasonal affective disorder in a Chinese nursing home显示文摘OBJECTIVE: To explore the effects of five-element music therapy on elderly patients with seasonal affective disorder in a Chinese nursing home.METHODS: The patients(n=50) were recruited from a Shijingshan district nursing home in Beijing,China. They were randomly assigned to two groups, a treatment group and a control group,with 25 participants in each group. The patients received music therapy for 1-2 h each week over an8-week period. The music therapy involved four phases: introduction, activities, listening to the Chinese five-element music, and a concluding phase.The participants in the control group did not listen to the five-element music. This study consisted of two parts:(a) a qualitative study that used focus groups to understand the feelings of the patients with seasonal affective disorder;(b) a quantitative study that involved administration of the self-rating depression scale(SDS) and Hamilton depression scale(HAMD) before and after treatment.RESULTS:(a) Qualitative analysis results: strength derived from the five-element group music therapy and emotional adjustment. The five-element group music therapy can reduce patients' psychological distress and let them feel inner peace and enhance their life satisfaction.(b) No significant difference in SDS and HAMD scores was found between the two groups(P>0.05) prior to treatment. After treatment,the mean SDS score of the control group was 49.9±18.8, while the treatment group's score was 40.2±18.1. The HAMD score of the control group was11.2±3.1, and the treatment group's score was 8.8±4.9. Following 8 weeks of music therapy, the SDS and HAMD scores of the treatment group were significantly lower than those for the control group(P<0.05).CONCLUSION: Five-element music therapy alleviated the symptoms of seasonal affective disorder in the elderly patients.Xifang Liu Xin Niu Qianjin Feng Yaming Liu 2014Journal of Traditional Chinese Medicine2014,34,2:8
6Sedimentary Conditions of Evaporites in the Late Jurassic Xiali Formation,Qiangtang Basin:Evidence from Geochemistry Records显示文摘The Qiangtang Basin(QB), located in the central Tibetan Plateau, is a Jurassic marine basin and one of the most important prospective salt resource belts in China. In recent decades, many outcrops of gypsiferous bed have been found in the Jurassic marine strata in the basin. Salt springs with abnormally high sodium(Na^+) contents had been identified in the Late Jurassic Xiali Formation(Fm.) in the basin in the last years. However, to date, no potash or halite deposits have been identified in the QB. Gypsum outcrops and salt springs are very important signs in the investigation of halite and potash deposits. Therefore, the Xiali Fm. is a potentially valuable layer to evaluate for the possible presence of halite and potash deposits in the basin. However, few studies have explored the formation conditions of evaporites in the unit. Here, we present detailed geochemical records from the Yanshiping section related to the study of the formation conditions of evaporites in the Xiali Fm. of the QB. Climate proxies based on the obviously increased anion concentrations of SO_4(2-) and Cl^- and the significant correlation coefficients of Ca2+-SO42-(R = 0.985) and Na^+-Cl^-(R = 0.8974) reveal that the upper member of the Xiali Fm.(the upper Xiali Fm.) formed under an arid climate and evolved into the sulfate phase or early chloride phase. Provenance proxies based on the obviously increased K^+ and Na^+ ion concentrations and the significant correlation coefficient of Na^+-Cl^-(R = 0.8974) suggest that the upper Xiali Fm. featured optimal provenance conditions for the possible formation of halite deposits. The regression and the semi-closed tidal flat environment in the upper Xiali Fm. were favorable for the formation of potash and halite deposits. The low Mg^(2+) /Ca^(2+) values(mean value = 1.82) and significant Na^+-Cl^- correlation coefficient(R = 0.8974) also suggest that the upper Xiali Fm. is the layer most likely to contain potential halite deposits. In addition, the macroscopic correlations of tectonism, provenance, paleoclimate, saliferous strata and sedimentary environment between the QB and the adjoining Amu Darya Basin in Central Asia reveal that the two basins shared similar geologic settings that were favorable for the formation of evaporites during the Late Jurassic. Therefore, the upper Xiali Fm. is a valuable layer to explore for halite deposit and may be potentially valuable in the future exploration for potash deposits in the QB.SONG Chunhui ZENG Yongyao YAN Maodu FANG Xiaomin FENG Ying PAN Jiaqiu LIU Xifang MENG Qingquan HU Chunhua ZHONG Sirui 2017Acta Geologica Sinica(English Edition)2017,91,1:4
7Geothermal-type Lithium Resources in Southern Xizang,China显示文摘High-temperature geothermal water has abundant lithium(Li)resources,and research on the development and utilization of geothermal-type lithium resources around the world are increasing.The Qinghai–Tibetan Plateau contains huge geothermal resources;especially,Li-rich geothermal resources in southern Xizang,southwestern China,are widely developed.The Li-rich geothermal spots in Xizang are mainly distributed on both sides and to the south of the Yarlung Zangbo suture zone.Such resources are often found in the intensely active high-temperature Li-rich geothermal fields and,compared with other Li-rich geothermal fields around the world,the Li-rich geothermal fluid in the Xizang Plateau,southern Xizang is characterized by good quality:the highest reported Li concentration is up to 239 mg/L;the Mg/Li ratio is extremely low and ranges from 0.03 to 1.48 for most of the Li-rich geothermal fluid;the Li/TDS value is relatively high and ranges from 0.25–1.14%compared to Zhabuye Li-rich salt lake(0.19%)and Salar de Uyuni(Bolivia)(0.08–0.31%).Continuous discharge has been stable for at least several decades,and some of them reach industrial grades of salt lake brine(32.74 mg/L).In addition,elements such as boron(B),caesium(Cs),and rubidium(Rb)are rich and can be comprehensively utilized.Based on still-incomplete statistics,there are at least 16 large-scale Li-rich hot springs with lithium concentration of 20 mg/L or more.The total discharge of lithium metal is about 4300 tons per year,equivalent to 25,686 tons of lithium carbonate.Drilling data has shown that the depth is promising and there is a lack of volcanism(non-volcanic geothermal system).With a background of the partial-melting lower crust caused by the collision of the Indo-Asia continent and based on a comprehensive analysis of the tectonic background of southern Xizang and previous geological,geophysical,and geothermal research,deep molten magma seems to provide a stable heat source for the high-temperature Li-rich geothermal field.The Li-rich parent geothermal fluid rushes to the surface to form hot springs along the extensively developed tectonic fault zones in southern Xizang;some of the Li-rich fluid flows in to form Li-rich salt lakes.However,most of the Li-rich geothermal fluid is remitted to seasonal rivers and has not been effectively exploited,resulting in great waste.With the continuous advance of lithium extraction technologies in Li-rich geothermal fluid,the lithium resource in geothermal water is promising as a new geothermal type of mineral deposit,which can be effectively exploited.This is the first study to undertake a longitudinal analysis on the characteristics,distribution and scale,origin and utilization prospects of Li-rich geothermal resources in southern Xizang,research that will contribute to a deeper understanding of Li-rich geothermal resources in the area and attract attention to these resources in China.WANG Chenguang ZHENG Mianping ZHANG Xuefei WU Qian LIU Xifang REN Jianhong CHEN Shuangshuang 2021Acta Geologica Sinica(English Edition)2021,95,3:4
8The Quaternary Pan-lake (Overflow) Period and Paleoclimate on the Qinghai-Tibet Plateau显示文摘Lake geomorphology and high-level lacustrine deposits since the mid-late Pleistocene are well preserved in lakes of the Qinghai-Tibet Plateau. According to geological surveys of 17 lake districts in different locations of the plateau,combined with interpretations of satellite images and topographic maps, the authors studied the timing of formation and scopes of the pan-lake areas of the plateau and their paleoclimate. The latest two high lake levels (overflow surfaces) on the Qinghai-Tibet Plateau in the Quaternary occurred at ~40 to 30/35 ka and ~65 to 53 ka respectively. In these time intervals, the plateau was covered by huge interconnected pan-lake systems with a total area of ~36 km2 and a total volume of lake water of >530 million km2, which are about 38 times and 659 times larger than those of the modem lakes respectively. Before this pan-lake period in the late Pleistocene, there had been three high lake levels that occurred at ~132-112 ka, 110-95 ka and 91-72/~83-75 ka respectively, suggesting that the late Quaternary climate on the plateau was unstable and changed rapidly. The ~40-30 ka high lake level also appeared in the Tengger desert north of the plateau,suggesting that there existed very strong summer monsoons from South Asia then; the variation in solar radiation with a 20,000 precessional period has special importance for the high-altitude Qinghai-Tibet Plateau in the low-latitude zone of the Earth. Around 30 ka, the pan-lakes at the peripheries of the Qinghai-Tibet Plateau drained out suddenly with rapid uplift of the plateau and cooling. In a short time the huge amount of cold lake water emptied into the Indian Ocean and Western Pacific. The draining event of the pan-lakes brought about the environmental changes of rivers and lakes at peripheries of the plateau.ZHENG Mianping YUAN Heran ZHAO Xitao LIU Xifang 2005Acta Geologica Sinica(English Edition)2005,79,6:3
9Comparison of time-domain,spectral-domain and swept-source OCT in evaluating aqueous cells in vitro显示文摘Different optical coherence tomography(OCT), both time-domain OCT and spectral-domain OCT, has been used to evaluate anterior chamber cells in previous studies. Recently, commercial swept-source OCT was available. The comparison among three kinds of OCTs have not been done before. Here, we compared their feasibility in discerning aqueous cells in vitro. The peripheral blood was diluted to eight different cell concentrations and was packed into plastic-film bag. Each sample was tested using different scan modes of three OCTs. It was easy to discern aqueous cells from background noise in both Visante AS-OCT and RTVue XR Avanti OCT, but difficult in Casia SS-1000 OCT. The measured blood cell densities in high-resolution corneal cross-sectional scan of Visante AS-OCT, cornea line scan and 3D cornea scan of RTVue XR Avanti OCT were highly correlated with the actual blood cell concentration(Pearson correlation=0.991, 0.989, and 0.993 respectively). The mean adjusted cell densities of cornea line scan(10.46±2.87 spots mm^(-2)) and 3D cornea scan(11.01±2.47 spots mm^(-2)) of RTVue XR Avanti OCT were significantly larger than that of Visante AS-OCT(1.55±1.75 spots mm^(-2))(P<0.01). Our study demonstrated that RTVue XR Avanti OCT, a spectral-domain OCT, is superior to other two OCTs in evaluating aqueous cells.Meng Li Huaizhou Wang Yue Liu Xifang Zhang Ningli Wang 2016Science China(Life Sciences)2016,59,12:3
10A COVID-19 Outbreak—Nangong City,Hebei Province,China,January 2021显示文摘Summary What is known about this topic?Coronavirus disease 2019(COVID-19)is widespread globally.In China,COVID-19 has been well controlled and has appeared only in importationrelated cases.Local epidemics occur sporadically in China and have been contained relatively quickly.What is added by this report?Epidemiological investigation with genome sequence traceability analysis showed that the first case of COVID-19 in Nangong City acquired infection from a confirmed case from Shijiazhuang City.Shiwei Liu Shuhua Yuan Yinqi Sun Baoguo Zhang Huazhi Wang Jinxing Lu Wenjie Tan Xiaoqiu Liu Qi Zhang Yunting Xia Xifang Lyu Jianguo Li Yan Guo 2021China CDC weekly2021,3,19:3
11Results of an Intentional Introduction of Artemia sinica in the High-Altitude Tibetan Lake Dangxiong Co:On a Base of Surveys in 2011 and 2013显示文摘1 Introduction The human population is projected to reach 9200million by 2050.A fundamental question for science is whether it is possible to increase food production to meet the demands of a human population of that magnitude.It’s possible only to increase an aquaculture production.Cultivation of fish/shrimp larvae is a bottleneck in a cultivation of the different organisms.LiveJIA Qinxian Elena ANUFRIIEVA LIU Shasha LIU Xifang KONG Fanjing ZHENG Mianping Nickolai SHADRIN 2014Acta Geologica Sinica(English Edition)2014,88,S1:2
12Assessment of spatial distribution and cysts resources of Artemia in late autumn in Dangxiong Co salt lake显示文摘Shasha Liu Xifang Liu Qinxian Jia Fanjing Kong Mianping Zheng Guangjun Lv 2013Acta Ecologica Sinica2013,,:1
13The Sedimentary Characteristics and Environmental Significance of Saline Lake Shore in North Tibetan Plateau显示文摘Introduction Through the study of environmental change indicators:landform,strata sedimentary characteristics,mineralogy characteristics and Grain-size,magnetic susceptibility analysis for 3101 cm height profile of Dogai Coring salt lake shore in the northern of Tibet plateau,the conclusion is roughly obtained about six major climate change process:LI Jinsuo ZHENG Mianping LIU Xifang 2014Acta Geologica Sinica(English Edition)2014,88,S1:1
14Comparative study on carbon in surface layer of bottom sediments in different sites of the saline Lake Dagze Co,North-Tibet Plateau,China显示文摘1 Introduction As the global warming issues become increasingly prominent,a research of carbon sinks,which focused on marine and terrestrial ecosystems,are paid more and more attention.Peatlands,soils and ocean floor areLIU Shasha LIU Xifang JIA Qinxian 2014Acta Geologica Sinica(English Edition)2014,88,S1:1
15Travertines in Dogai Coring Area of Tibet,China:Carbon,Oxygen and Strontium Isotopic Characteristics and Genetic Mechanism显示文摘1 Introduction Dogai Coring is a name of lake lied in the northern Tibet.There are a series of modern salt springs and theies travertines.All of salt springs have an anomaly of potassium,implying that springs water may dissolve evaporites from deep bed formation,which includesNIU Xinsheng LIU Xifang CHEN Wenxi 2014Acta Geologica Sinica(English Edition)2014,88,S1:0
16Chinese Fetal Growth:A Multicenter Cohort Study Based on Fetal Ultrasound Measurements显示文摘Objective:To build a reference fetal growth chart for the Chinese population based on fetal ultrasound measurements.Methods:This was a multicenter,population-based retrospective cohort study.Longitudinal ultrasound measurement data were collected from 24 hospitals in 18 provinces of China from 1st September through 31st October of 2019.The estimated fetal weight(EFW)was calculated based on head circumference,abdominal circumference,and femur length using Hadlock formula 3.Fetal growth curves were estimated using a two-level linear regression model with cubic splines.All participants were divided into two groups:the northern group(n=5829)and the southern group(n=3246)based on the geographical division of China and male fetus group(n=4775)and female fetus group(n=4300)based on fetal gender.The EFW was compared by fetal gender and geographical group.All statistical models were adjusted for maternal sociodemographic characteristics.Results:A total of 9075 participants with 31,700 ultrasound measurement records were included in this study.Male fetuses demonstrated significantly larger EFW compared to female ones starting at 16 weeks of gestation and extending to delivery(global testP<0.01).The overall geographic difference in EFW was significant(global testP=0.03),and week-specific comparisons showed that the northern group had a greater EFW starting at 15 weeks of gestation and extending to 29 weeks of gestation,although this difference did not extend to the time of delivery.TheZ-score of EFW confirmed that our Chinese fetal growth charts differed from previously published standards.Conclusion:This study provides EFW and ultrasound biometric reference measurements for Chinese fetuses and reveals differences from other fetal growth charts.The chart is worth promoting in more regions of China but should be tested prudently before use.Xiaoli Gong Tianchen Wu Xiaoli Wang Lizhen Zhang Yiping You Hongwei Wei Xifang Zuo Ying Zhou Xinli Xing Zhaoyan Meng Qi Lyu Zhaodong Liu Jian Zhang Liyan Hu Junnan Li Li Li Chulin Chen Chunyan Liu Guoqiang Sun Aiju Liu Jingsi Chen Yuan Lyu Yuan Wei Yangyu Zhao 2023Maternal-Fetal Medicine2023,5,1:0
17Origin of boron in the Damxung Co Salt Lake(central Tibet):Evidence from boron geochemistry and isotopes显示文摘The origin of boron in boron-rich salt lakes in the Tibetan Plateau has long been the subject of debate.The Damzung Co Salt Lake in central Tibet has high boron concentrations(B=276–313 mg/L)and is an ideal siteLü Yuanyuan ZHENG Mianping CHEN Wenxi ZHANG Xuefei LIU Xifang WU Qian YU Jiangjiang 2014Acta Geologica Sinica(English Edition)2014,88,S1:0
18Effect of temperature on the pineal gland cell in rats显示文摘To the editor:Melatonin is secreted by the pineal gland that is responsible for physiological activities.1 Many articles have reported the various functions of melatonin.For example,melatonin can modulate circadian rhythms and regulate immune system.But only a handful of studies have reported the relationship between temperature and the pineal gland cell.This study aimed to investigate the effect of different temperature on the pineal gland cell in rats.Liu Xifang Niu Xin Feng Qianjin Liu Yaming 2014Chinese Medical Journal2014,,17:0
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