Gravity and magnetic field characteristics and regional ore prospecting of the Yili ancient continent, West Tianshan, Xinjiang Uygur Autonomous Region, China

Gold,iron,copper,lead-zinc and other mineral exploration in West Tianshan,Xinjiang Uygur Autonomous Region,has made remarkable progress in recent years.However,due to the dispute on the tectonic division of West Tianshan,the ore-controlling factors and the regional metallogenic laws are controversial.The authors analyze regional gravity data and notice that the high-value region corresponds to the Yili ancient continent,thus the southeastern boundary of the Yili ancient continent is delineated.Comparative analysis of gravity,aeromagnetic and geologic data reveals that the Tulasu basin,where some medium to large epithermal gold deposits locate,lies above the Yili ancient continent;the Yili Carboniferous-Permian rift extends in E-W direction,numbers of copper deposits have been found in the mid-west section of the rift which lies above the Yili ancient continent,whereas few copper deposits have been discovered in the east section which is outside the Yili ancient continent.Accordingly,the Yili ancient continent may be rich in gold,copper and other metal elements;the metal-bearing hydrothermal solution moves up with the activity of magmatism,and deposits in the favorable places(the Tulasu basin and the Yili Carboniferous-Permian rift),forming numerous small and medium gold,copper deposits,as well as some large and super-large gold deposits.Therefore,the tectonic-magmatic hydrothermal zone above the Yili ancient continent should be the prospective area for epithermal gold and copper polymetallic deposits.

Internet based environmental monitoring information system and its application in Yili Prefecture

With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secondly, it benefits greatly the data dissemination and data sharing based on Internet. The most important but not the last is that we can establish the information service network supported by its technologies and the facilities of information highway. So, it would be significant to design IBIS to realize the data collection, sharing and dissemination on Internet. There are many factors affecting regional environment. So it is not easy to realize the integrated environmental monitoring. Given this, we designed the Internet based environmental monitoring information system. By the virtue of the Internet based environmental monitoring information system, the management and storage of environmental monitoring data would be easier, which lays the foundation to actualize the environmental monitoring efficiently.

Tectonic Uplift of the Yili Basin during the Last Stage of the Late Pleistocene: Evidence from ESR and OSL Dating of Sediments in the Huocheng Area, Xinjiang

The Quaternary sediments in the Yili Basin can serve as archives for studying the Cenozoic basin-mountain relationship. In this study, based on typical natural sections and boreholes, the surficial sediments of the Huocheng area were studied, and their sedimentary ages were obtained using the optically stimulated luminescence(OSL) and electron spin resonance(ESR) dating methods. These dates, combined with changes in the sedimentary facies, provided details of the neotectonic movement in the Yili Basin and adjacent areas. By dating sediments from five sections and three boreholes, we determined that the surficial sediments of the Huocheng area were mainly formed in the Late Pleistocene, with scattered instances of Holocene sediments. The surficial sediments mainly consisted of alluvial fan facies, fluvial facies, lacustrine facies, and desert facies. Based on the activity on the Hongshanzui fault and the northern margin fault of the Wusun Mountains, the Huocheng area was uplifted synchronously with the Tianshan Mountains during the last stage of the Late Pleistocene, causing the desert facies sediments to be superimposed on the former paleo-lake sediments.

Agricultural Land Use Optimal Allocation System in Developing Area:Application to Yili Watershed, Xinjiang Region

In developing countries, land productivity involves little market, where the agricultural land use is mainly determined by the food demands as well as the land suitability. The land use pattern will not ensure everywhere enough land for certain cropping if spatial allocation just according to land use suitability. To solve this problem, a subzone and a pre-allocation for each land use are added in spatial allocation module, and land use suitability and area optimi- zation module are incorporated to constitute a whole agricultural land use optimal allocation （ALUOA） system. The system is developed on the platform .Net 2005 using ArcGIS Engine （version 9.2） and C# language, and is tested and validated in Yili watershed of Xinjiang Region on the newly reclaimed area. In the case study, with the help of soil data obtained from 69 points sampled in the fieldwork in 2008, main river data supplied by the Department of Water Resources of Xinjiang Uygur Autonomous Region in China, and temperature data provided by Data Center for Resources and Environmental Sciences, Chinese Academy of Sciences, land use suitability on eight common crops are evaluated one by one using linear weighted summation method in the land use suitability model. The linear pro- gramming （LP） model in area optimization model succeeds to give out land area target of each crop under three scenarios. At last, the land use targets are allotted in space both with a six subzone file and without a subzone file. The resuits show that the land use maps with a subzone not only ensure every part has enough land for every crop, but also gives a more fragmental land use pattern, with about 87.99% and 135.92% more patches than the one without, while at the expense of loss between 15.30% and 19.53% in the overall suitability at the same time.

Redetermination of the Depositional Age of the Haerdaban Group in the Northern Margin of the Yili Block,Western Tianshan,NW China:Implications for Regional Tectonics and Pb-Zn Mineralization

The Yili Block in the Western Tianshan orogen is a key area for understanding the early crustal formation and evolution of the Central Asian orogenic belt,due to the widely-distributed Precambrian rocks.Also,it hosts a lot of medium–to large-scale sedimentary exhalative(SEDEX)Pb-Zn deposits that mainly occur in Proterozoic metamorphosed clasticcarbonate rocks.In this study,LA-ICP-MS U-Pb analyses were carried out on detrital zircons in siltstones of the Precambrian Haerdaban Group in the Haerdaban Pb-Zn deposit and magmatic zircons in the diorite dyke that cuts through the strata and orebodies.The maximum depositional age of the siltstones was determined to be about 604 Ma,the diorite having formed at approximately 500 Ma.As such,the Haerdaban Group was most likely formed in the Neoproterozoic Sinian,rather than the previously considered Mesoproterozoic Changchengian.Detrital materials of the Haerdaban Group were mostly derived from the Nanhua–Sinian mafic dykes and granitic rocks around Lake Sayram at the northern margin of the Yili Block.It is proposed that the Yili Block,together with the Kazakhstan and Central Tianshan blocks and the Tarim Craton,might all pertain to the same Rodinia supercontinent,which has great potential for targeting large to super-large SEDEX Pb-Zn deposits.

Study on Spatial Variability of Soil Infiltration Coefficient in the Plain of the Yili River Valley in Xinjiang

22 typical test points and 8 profiles were selected and arranged in the plain of Yili River Valley based on lithological distribution and sedimentary characteristics to study spatial variability of soil infiltration coefficient. The results show that the infiltration coefficient of different geo-morphic units is as follows: the desert area > the pre-mountain alluvial-proluvial plain > river terrace,which is mainly related to the lithology of aeration zone,buried depth of groundwater and underlying surface. For the infiltration coefficient of different aeration zone mediums,the results are consistent with the changing law. The partition of plain of the Yili River Valley is based on geo-morphic units,infiltration coefficient and the lithology of aeration zone. The maximum infiltration coefficient is concentrated in the desert area,and there is zonal distribution of infiltration coefficient in plane.

单极微血管电凝器配合YILIYA GD光量子“取斑王”对面部毛细血管扩张症治疗作用的探讨

目的探讨单极微血管电凝器配合YILI GD光量子取斑王治疗面部毛细血管扩张症的疗效。方法单极微血管电凝器电极为Ⅰ极，YILIYA GD光量子光源为强脉冲光源，能量密度为23～33（GO）。脉冲个数2～4个，首脉宽度1．5～3．5ms，脉冲间隔1～10s。结果本组治疗次数最少为3次，最多为7次。56例中1级（痊愈）15例；2级（显效）31例；3级（有效）；10例：无1例无效者。结论单极微血管电凝器配合YILI GD光量子取斑王治疗面部毛细血管扩张症均有可靠疗效，除术后色素沉着发生外，无其他不良反应。

Climate instability in the Yili region, Xinjiang during the last glaciation

The climate is influenced by westerlies year in year out and the aeolian loess is widespread in the Yili region, the Xinjiang Uygur Autonomous Region. Through the study of the loess section with a thickness of 21.5 m, much useful information about climatic change in this region during the last glaciation was gotten. Grain size analysis of loess samples in the section showed that the climatic change in the Yili region was of instability during the last glaciation and similar to those of the North Atlantic Ocean and Greenland. In correspondence with the Heinrich events, the percentage of the size fraction of loess with grain size less than 10 μm decreased in cold stadials in the Yili region. This result suggests that the westerly wind be strengthened during the cold periods. Compared with the stadials, the content of the loess with grain size less than 10 μm was increased in interstadials, which indicated that the strength of the westerly wind was weakened. It is obvious that the climate was instable

A novel solution for outlier removal of ICESat altimetry data： a case study in the Yili watershed, China

Due to the influence of cloud and saturated waveforms, ICESat data contain many contaminated elevation data that cannot be directly used in examining surface elevation and change. This study provides a novel solution for removing bad data and getting clean ICESat data for land applications by using threshold values of reflectivity, saturation, and gain directly from ICESat＇s GLAS （Geoscience Laser Alteimeter System） 01, 05, and 06 products. It is found that each laser campaign needs different threshold compositions to assure qualified ICESat data and that bad data removal rates range from 9.6% （laser 2A） to 62.3% （laser 2B） for the test area in the Yili watershed, China. These thresholds would possibly be used in other regions to extract qualified ICESat footprints for land applications. However, it is recommended to use the steps proposed here to further examine the transferability of threshold values for other regions of different elevations and climate regimes. As an example, the resulting ICESat data are applied to examine lake level changes of two lakes in the study area.

Quantitative Measurement of Bedding Orientation Using Remote Sensing Data:Yili Basin,Northwest China

Bedding orientation measurement is a remote sensing application used in the field of geology, but the results are often unsatisfactory when the bed is dislocated along the strike direction. This paper proposes a new method called multiple-line method that is designed to improve bedding orientation measurement. This technique uses the bed as a vector, and fits the vectors as a plane to obtain the bedding orientation. This study employs the case of Yili Basin and measures 25 bedding orientations using the multiple-point and multiple-line methods, respectively. The result shows that the errors from the multiple-line method are mostly smaller than those from the multiple-point method when a bed is discontinuous.

The Modern Approach to "Xungu Leads to(Confucian) Yili"

The proposition that "xungu tong yili"(an exegetical tradition leading to Confucian teachings) expresses the core idea of traditional Chinese philology, which threads throughout the Han and Song dynasties and reached its historical acme in the form of the Qian-Jia school. The overemphasis of scholars from this school on exegesis led to the division between Hanxue(Qing scholarship in the Han dynasty tradition) and Songxue(Qing scholarship in the Song dynasty tradition) and a disconnection between "xungu(Chinese exegetical tradition exegesis) and yili(Confucian teachings)." The modern "linguistized"shift has seen the slow death of the xunguxue tradition(the theory and practice of xungu as a discipline), under which "xungu tong yili." At the same time, modern xunguxue has clarified its own disciplinary orientation and has made great progress in both theory and practice,laying a reliable foundation for the renewed process of working out meanings through xungu.The heights of modern xunguxue allow the scholarly development of the meanings behind the classic texts in five respects: semantic verification, context representation, validation of themes, history of xungu interpretation, and pursuit of imagery. In the cross-disciplinary collision centered on Chinese hermeneutics, the modern approach to the proposition that "xungu tong yili" has shown abundant vitality.

Reconstructing mean maximum temperature of growing season from the maximum density of the Schrenk Spruce in Yili,Xinjiang,China

To study the historical temperature variation in Yili of Xinjiang,the tree-ring chronologies of maximum density(MXD) and tree-ring width(TRW) were established with the Schrenk Spruce(Picea schrenkiana Fisch.et Mey) collected from six sites to analyze the characteristics and ability of response to climate change.The results suggest that the MXD chronology of the Schrenk Spruce from different sampling sites responded to climate change well and were positively correlated with the mean maximum temperature and the mean temperature from April to August in the study area.The mean maximum temperature anomaly from April to August,spanning the years from 1848 to 2000,was reconstructed by three MXD chronologies which were selected by stepwise regression.The reconstructed function was stable and explained 56.2% of the variance.The reconstructed results indicated a cold span of 153 years in spring and summer from the beginning of the 1950s to the beginning of the 1970s in the Yili valley.No strongly increasing tendency was detected in the mean maximum temperature anomaly from April to August during this reconstructed period.

Modern pollen and vegetation relationships in the Yili Basin,Xinjiang, NW China

Fifty-six surface pollen samples from different vegetation zones in the Yili Basin,western Tianshan Mountains,Xinjiang were analyzed to examine the relationships between the surface pollen assemblages and the original vegetation.A pollen analysis and a vegetation investigation with a discriminant analysis show that the pollen assemblages greatly differ across disparate vegetation zones.Twelve pollen taxa can be used as significant types for vegetation reconstruction in the basin.These taxa were the most abundant in the surface pollen samples.Cupressaceae pollen percentages were greater than 1%in Cupressaceae shrubs.More than5%of Picea pollen indicates the growth of a Picea forest within 5 km.The subalpine meadow that is distributed widely in the basin is characterized by high content of Artemisia,Chenopodiaceae,Poaceae,Picea,Asteraceae,Taraxacum and Arenaria pollen types.The Artemisia-Chenopodiaceae-Poaceae-Cannabaceae pollen assemblages indicate the presence of montane steppe in the area.Artemisia and Chenopodiaceae pollen dominate the desert steppe and Populus forest.Artemisia pollen percentages were greater than 60%in the Artemisia desert,whereas Chenopodiaceae pollen percentages exceeded 65%in the Chenopodiaceae desert.The Artemisia/Chenopodiaceae(A/C)ratios reflect the vertical moisture changes in the Yili Basin.The mean A/C ratios were greater than 1.2 in the subalpine meadow and montane steppe that occupy the humid zone in the basin.These ratios were between1 and 1.2 in the Cupressaceae shrubs,desert steppe,Populus forest and floodplain meadow.The ratios were less than 0.5 in the Chenopodiaceae desert,which is an arid environment.

伊犁河谷植被物候变化特征及其对气候变化的响应

本文基于2001—2021年MODIS NDVI数据和气象数据,利用TIMESAT软件提取伊犁河谷植被物候参数,结合Sen趋势分析、M—K检验和偏相关分析等方法,研究伊犁河谷植被物候变化特征及其对气候(气温、降水)变化的响应。结果表明:伊犁河谷植被生长季始期(Start of the growing season,SOS)、生长季末期(End of the growing season,EOS)、生长季长度(Length of growing season,LOS)主要集中在45~113 d,290~335 d,186~279 d,海拔每上升100 m,SOS约推迟1.9 d,EOS提前1 d,LOS缩短2.9 d。SOS呈提前的像元占79.91%;EOS呈推迟的像元占81.64%;LOS呈延长和缩短的像元占31.89%,26.39%。1000 m以下草原SOS最早且提前天数最多(61.5 d);1000 m以上草原EOS提前天数最多(34.8 d),阔叶林仅提前7.6 d。SOS受2,3月气温及1,2月降水影响,3月气温升高使SOS提前;EOS与8月气温正相关,与9月降水负相关。本研究为伊犁河谷的植被资源保护与生态环境可持续发展提供科学依据。

补喂酵母培养物对泌乳母马产奶量、乳成分及血液生化指标的影响

[目的]试验旨在探究补喂不同水平酵母培养物对泌乳母马产奶量、乳成分及血液生化指标的影响,以期为开发和使用饲料添加剂提高母马泌乳能力提供参考依据。[方法]选取8 h平均泌乳量为(2.65±0.34)kg、胎次和产驹日期相近、泌乳2月的伊犁马母马18匹,随机分为3组,分别为对照组、试验Ⅰ和Ⅱ组。其中,对照组马纯放牧饲养,试验Ⅰ和Ⅱ组在此基础上,分别补喂45和60 g/(d·匹)酵母培养物,预饲5 d后进行为期60 d的补喂试验。在正饲期前(记为第0天)、第30和60天(每天11:00、13:00、15:00、17:00),在每次挤奶时分别称量每匹马的挤奶量,并采集全天的乳样测定乳中乳蛋白、乳脂、乳糖、非脂固形物;于试验第60天晨饲前空腹采集血液样品,测定总蛋白(TP)、球蛋白(GLB)、白蛋白(ALB)、尿酸(UA)、葡萄糖(GLU)、甘油三酯(TG)、总胆红素(T-Bil)等指标。[结果]①第0天时,各组之间产奶量均无显著性差异(P>0.05)。第30天,试验Ⅱ组马产奶量显著高于对照组(P<0.05);第60天,与对照组相比,试验Ⅰ和Ⅱ组马产奶量分别显著提高了19.33%和27.30%(P<0.05)。②第0和30天,各组之间乳蛋白率、乳脂率、乳糖率及非脂固形物含量均无显著性差异(P>0.05);第60天,与对照组相比,试验Ⅰ和Ⅱ组乳脂率分别显著提高了30.89%、35.77%(P<0.05),试验Ⅱ组非脂固形物含量显著提高了1.90%(P<0.05)。③与对照组相比,试验Ⅰ和Ⅱ组血浆中TP、ALB、GLB、UA、GLU、TG和T-Bil含量均无显著性差异(P>0.05)。[结论]给泌乳母马补喂酵母培养物可以提高产奶量,改善乳成分质量,且补喂60 g/(d·匹)酵母培养物时效果较佳,但对血液生化指标没有显著影响。

伊犁盆地南缘阔斯加尔地区砂岩型铀矿勘查历程与找矿启示

阔斯加尔地区是近年来在乌库尔其铀矿床往东探索扩大而新发现的砂岩型铀成矿地段。文章通过对阔斯加尔地区不同勘查阶段工作部署以及找矿思路的梳理,结合矿体地质特征,归纳总结铀矿体发现的经验和启示。阔斯加尔地区于20世纪50年代开始勘查工作,前期探索查证为后期的铀矿勘查工作提供了线索和依据。2008年开始带钻查证工作,通过资料梳理,重新预测了铀成矿潜力地区,落实了铀矿产地;2012-2013年进入瓶颈期,经历综合研究和系列基础图件编制,细化了控矿因素,预测了成矿有利地段;2016-2020年为突破期,矿体规模持续扩大,连续揭露到多个较富大的矿体,平米铀量持续提升,资源量规模达中型。阔斯加尔地区是伊犁盆地南缘“乌库尔其-蒙其古尔中部矿集区”的重要组成部分,西接乌库尔其矿床,南邻扎吉斯坦矿床,是伊犁盆地南缘“外围找矿,就矿找矿”的重要地区。中侏罗统西山窑组上段铀矿体为区内主要矿体,其规模较大,资源占比高。通过对已知矿床外围进行不断的探索和查证,搜集整理老资料、开展综合研究与编图等重要的经验和启示,可以作为寻找类似铀成矿地区的借鉴。

文章文法视野下义例、史法、义法之辨析

学者们往往将方苞所谓文章义法等同于经学义例、书法或史法,此观点值得商榷。义例、史法对文章文法的发展都有不同程度的影响,它们都重视大义的书写,也影响到义法说对文章大义指向的重视以及将义与法密切关联的主张。不过,经学大义或史学大义在某种程度上是学者共同认可或遵守的价值观念,而文章大义则往往体现作家个人的学养、精神等等。义例、史法、文章义法也都关注文章写作之“法”,都会考虑书与不书或材料的取舍等问题,但在“法”的内涵和指向上又有明显区别。经学家对书法的分析主要体现在文章字句上,即所谓“一字褒贬”,史法的根本在于对体例的把握;《史通》开启了叙事文法的总结,明人以此为基础,通过《左传》《史记》等的评点使叙事的篇章之法得到充分认识和发展;方苞义法说的提出又以明人为基础,简化明代以来层出不穷的炫目、奇妙之法,主张法的运用随义而变化,更关注最基本的篇章法则,确立了清代文章学的基本走向。

肉用型伊犁马的血液转录组比较分析

旨在通过对伊犁马不同肉用性能血液转录组进行研究,筛选并分析差异表达基因,为后续伊犁马肉用性能相关研究提供分子基础。本研究从112匹肉用型伊犁马核心群中选取4~5岁健康状况良好的伊犁马母马12匹,依据背膘厚4.4 mm,眼肌面积31.5 cm^(2)以上为肉用性能较好组马匹(HW组),平均体重为528.67 kg;背膘厚度2.2 mm,眼肌面积19.5 cm^(2)以下为普通组马匹(LW组),平均体重为327.00 kg,每组各6匹,采集血样进行转录组测序。生物信息学分析结果表明,筛选出差异表达基因共370个(P<0.05),其中上调基因158个,下调基因212个。GO功能富集分析显示,伊犁马肉用性能可能与G-蛋白偶联受体信号通路过程、细胞外区域、跨膜信号受体活性等条目有关。KEGG通路分析显示,伊犁马肉用性能可能与蛋白质的消化和吸收、甲状腺激素合成、皮质醇的合成和分泌等通路有关。CTSH、SSTR1、APOA1和ITM2A等是影响伊犁马肉用性能的候选基因,研究结果为肉用型伊犁马生长发育的分子调控机制提供参考。