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Genesis of the Sinongduo Carbonate-hosted Pb-Zn-Ag Deposit in the Central Lhasa Terrane,Tibet

Acta Geologica Sinica(English Edition) 2023年第3期97卷 759-776页

作者： RAN Fengqin TANG Juxing YANG Zongyao DUO Ji REN Dongxing GUO Wenbo WU Xin hao jinyue HE Yifei SUN Yang College of Earth Science Chengdu University of TechnologyChengdu 610059China MNR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological ScienceBeijing 100037China Chengdu Surveying Geotechnical Research Institute Co. Ltd.of MCCChengdu 610023China Chengdu Engineering Corporation Limited PowerChinaChengdu 611130China New Energy Geology Team of the Hebei Coalfield Geology Bureau XingtaiHebei 054000China

The Sinongduo mining region includes two types of mineralizations:the epithermal and the carbonate-hosted PbZn-Ag *** being studied for many years,the ore formation process and genesis of the carbonate-hosted Pb-Zn-Ag deposits remain poorly *** Pb-Zn-Ag ore bodies occur as veins and are hosted by limestone and dolostone of the Permian Xiala *** sulfide mineralization substages have been identified at the Sinongduo carbonatehosted *** coupled with Cu,Co and Sn was incorporated into sphalerite as substitutions:2Zn^(2+)?Cu^(+)+In^(3+),(3n/2+1)Zn^(2+)?Co^(2+)+n In^(3+)or(2n+1)Zn^(2+)?Co^(2+)+n(Cu^(+)+In^(3+))(n>1)and 4Zn^(2+)?Sn2++2In^(3+).Sphalerite and pyrite in the mineralization stage displayδ^(34)S values in a narrow range of+5.7‰to+11.3‰,which are similar to those of Palaeocene igneous rocks,indicative of a magmatic source of *** present systematic carbon-hydrogen-oxygen isotope results that further support a magmatic source for the ore-forming fluids that were influenced by meteoric ***,the Pb isotope compositions of sulfide minerals in the Sinongduo carbonate-hosted deposit overlap with the values of coeval Linzizong volcanic rocks and are similar to those of Indian Ocean sediments,indicating upper crustal sources of *** conclude that the Sinongduo carbonate-hosted Pb-Zn-Ag deposit is a medium-to low-temperature magmatic-hydrothermal deposit related to Linzizong magmatism.

关键词： sulfur and lead isotopes sphalerite carbonate-hosted deposit Tibet India–Asia collision

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“生活·实践”教育视域下全面深化综合实践活动课程改革的价值旨归、重点任务与推进策略

“生活·实践”教育研究

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“生活·实践”教育研究 2025年第1期1卷 6-15页

作者：申国昌郝瑾玥华中师范大学教育学院武汉430079

“生活·实践”教育是源于生活与实践、通过生活与实践、为了生活与实践的教育。在“生活·实践”教育视域下,综合实践活动课程改革以整全育人为价值旨归,具体涵括三重价值,即牵引跨学科课程整合、统筹“校家社”三种资源的“结构性”价... 详细信息

“生活·实践”教育是源于生活与实践、通过生活与实践、为了生活与实践的教育。在“生活·实践”教育视域下,综合实践活动课程改革以整全育人为价值旨归,具体涵括三重价值,即牵引跨学科课程整合、统筹“校家社”三种资源的“结构性”价值,推动教师教法创新、促进“五育融合”的“实践性”价值,贯彻核心素养、培育学生六种能力的“迁移性”价值。然而,在综合实践活动课程实施过程中面临课程资源“窄化”、教师教学“不敢、不会、不想”、教学评价“重结果”三大现实挑战。基于此,综合实践活动课程亟待以“生活·实践”教育理念为指引,着力丰富课程资源、强化师资队伍、改进课程评价,以扩展学生学习空间、提升教师教学能力,从而提升实践育人效果。

关键词：综合实践活动课程新课程改革 “生活·实践”教育核心素养

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西藏斯弄多地区晚白垩世埃达克岩:岩石成因及成矿潜力指示

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地球科学 2021年第5期46卷 1597-1612页

作者：杨昕唐菊兴杨宗耀谢富伟郝金月吴鑫宋壮壮中国地质大学地球科学与资源学院北京100083 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 西南交通大学地球科学与环境工程学院四川成都611756 成都理工大学地球科学学院四川成都610059

西藏冈底斯带广泛分布晚白垩世埃达克质岩,其岩石成因一直存在争论,并且对于成矿潜力的研究也十分有限.为此对谢通门县斯弄多-加多捕地区具铜矿化的黑云母二长花岗岩开展了锆石U-Pb定年、全岩地球化学以及锆石微量元素地球化学特征的研... 详细信息

西藏冈底斯带广泛分布晚白垩世埃达克质岩,其岩石成因一直存在争论,并且对于成矿潜力的研究也十分有限.为此对谢通门县斯弄多-加多捕地区具铜矿化的黑云母二长花岗岩开展了锆石U-Pb定年、全岩地球化学以及锆石微量元素地球化学特征的研究,以探明岩石成因及成矿潜力.结果表明黑云母二长花岗岩侵位时间为晚白垩世(83.1±1.6 Ma).岩石具有相对高的Si O2含量(60.21%~62.54%)、Mg O(2.19%~3.02%)、Mg#(41.25~50.73)值.较低含量的Y(15.9×10^(-6)~17.8×10^(-6))、Yb(1.46×10^(-6)~1.73×10^(-6))及较高的Sr/Y(35.0~47.6)、La/Yb(29.6~38.6)比值,表现出高硅型埃达克质岩亲和性.岩石属高钾钙碱性、准铝质系列(A/CNK值为0.84~0.92),富集LREE、大离子亲石元素(LILE)、亏损高场强元素(HFSE),如Nb、Ta等.锆石微量元素具较高的V/Sc、Ce/Ce*、10 000×(Eu/Eu*)和Eu/Eu*比值.通过对比冈底斯带晚白垩世典型的埃达克岩,认为斯弄多黑云母二长花岗岩是新特提斯洋俯冲洋壳部分熔融的产物,岩浆氧逸度较高,显示出斯弄多黑云母二长花岗岩具有良好的Cu-Au成矿潜力.

关键词：冈底斯带斯弄多埃达克岩岩石成因成矿潜力矿床地质

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西藏东南缘早二叠世长英质凝灰岩锆石U-Pb年龄和Hf同位素特征

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地球科学 2021年第11期46卷 3880-3891页

作者：麦源君朱利东杨文光解龙童霞郝金月钟摇成都理工大学沉积地质研究院四川成都610059 成都理工大学地球科学学院四川成都610059

西藏东南缘记录的唐加-松多古特提斯增生杂岩带对认识古特提斯洋晚古生代的构造演化提供了新的证据.针对该杂岩带中新发现的长英质凝灰岩开展了全岩主、微量元素,锆石LA-ICP-MS U-Pb定年和锆石Hf同位素组成的研究.结果显示冲尼凝灰岩喷... 详细信息

西藏东南缘记录的唐加-松多古特提斯增生杂岩带对认识古特提斯洋晚古生代的构造演化提供了新的证据.针对该杂岩带中新发现的长英质凝灰岩开展了全岩主、微量元素,锆石LA-ICP-MS U-Pb定年和锆石Hf同位素组成的研究.结果显示冲尼凝灰岩喷发于278~275 Ma,具有较高的SiO_(2)含量(63.47%~72.65%)、Al_(2)O_(3)含量(14.53%~21.31%),较低的K_(2)O含量(1.30%~2.51%)和TiO_(2)含量(0.50%~1.17%),MgO含量较低,介于0.92%~2.00%,Mg^(#)范围在19.9~34.2(均低于40).富集大离子亲石元素(LILE)、亏损高场强元素(HFSE).锆石具有较高的ε_(Hf)(t)值(+10.2~+14.4)和相对年轻的地壳模式年龄T_(DM)^(c)=351~621 Ma,认为冲尼凝灰岩是唐加-松多古特提斯洋向北俯冲背景下的新生地壳部分熔融的产物,洋盆俯冲消减的开始时代不晚于早二叠世,并且在早二叠世拉萨地体东南缘存在新生地壳生长事件.

关键词：早二叠世拉萨地体 Hf同位素 U-Pb年龄唐加-松多古特提斯岩石学

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西藏唐加地区早侏罗世高镁安山岩U-Pb年代学、岩石地球化学及地质意义

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矿物岩石 2021年第3期41卷 61-71页

作者：杨珍杨文光朱利东李博郝金月重庆工程职业技术学院重庆402260 成都理工大学沉积地质研究院四川成都610059 成都理工大学地球科学学院四川成都610059

西藏唐加地区甲拉浦组中发育高镁安山岩,通过对其样品U-Pb年代学和地球化学特征分析结果显示,唐加地区甲拉浦组高镁安山岩U-Pb年龄为197.1±2.9 Ma,时代为早侏罗世。地球化学特征显示,甲拉浦组高镁安山岩属于钾钙碱性系列,w(SiO_(2))在5... 详细信息

西藏唐加地区甲拉浦组中发育高镁安山岩,通过对其样品U-Pb年代学和地球化学特征分析结果显示,唐加地区甲拉浦组高镁安山岩U-Pb年龄为197.1±2.9 Ma,时代为早侏罗世。地球化学特征显示,甲拉浦组高镁安山岩属于钾钙碱性系列,w(SiO_(2))在53.04%-54.53%之间,w(MgO)为4.98%-6.18%,w(Al_(2)O_(3))为17.17%-17.54%,w(CaO)为7.00%-11.34%,FeO^(T)/MgO为1.26-1.48,平均值为1.33,Mg^(#)值为58.7-62.5,平均值为61.2。样品显示轻稀土元素富集,Eu微负异常,大离子亲石元素Rb,Ba,Pb富集,Nb,Ta,Ti等高场强元素亏损。由此可知,唐加地区早侏罗世甲拉浦组高镁安山岩形成于与俯冲消减有关的构造背景,是新特提斯洋北向俯冲洋壳部分熔融的产物。

关键词：高镁安山岩新特提斯洋唐加地区锆石U-Pb年龄地球化学

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西藏斯弄多银多金属矿床热液角砾岩特征及成因分析

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矿床地质 2021年第3期40卷 509-522页

作者：郝金月冉凤琴多吉唐菊兴杨宗耀吴鑫杨昕宋壮壮成都理工大学地球科学学院四川成都610059 西藏地质矿产勘查开发局西藏拉萨850000 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 西南交通大学地球科学与环境工程学院四川成都611756 中国地质大学地球科学与资源学院北京100083

西藏斯弄多银多金属矿床产于陆相林子宗群火山岩内,是冈底斯成矿带发现的首例浅成低温热液矿床。矿床具有热液脉型银铅锌矿体、隐爆角砾岩型矿体和独立银矿体"三位一体"的矿体组合形式。热液角砾岩作为矿区主要矿(化)体,目前尚未开展详... 详细信息

西藏斯弄多银多金属矿床产于陆相林子宗群火山岩内,是冈底斯成矿带发现的首例浅成低温热液矿床。矿床具有热液脉型银铅锌矿体、隐爆角砾岩型矿体和独立银矿体"三位一体"的矿体组合形式。热液角砾岩作为矿区主要矿(化)体,目前尚未开展详细研究工作。文章以斯弄多矿区热液角砾岩为研究对象,通过钻孔岩芯编录和岩相学研究,总结了不同类型热液角砾岩特征,旨在探讨其成因及与成矿的关系。根据热液角砾岩产状、颜色、胶结物等特征,将矿区热液角砾岩分为气喷角砾岩、岩浆蒸汽角砾岩和构造热液角砾岩三类。岩浆蒸汽角砾岩产于隐爆角砾岩筒中,根据其产状、颜色、胶结物成分差异进一步分为A类角砾岩和B类角砾岩。A类角砾岩产于Ⅰ号富矿角砾岩筒,蚀变矿物以绢云母、蒙脱石、伊利石为主;B类角砾岩产于Ⅱ号贫矿角砾岩筒,蚀变矿物以白云母、赤铁矿、黄钾铁矾为主。研究认为,与成矿作用密切相关的热液角砾岩成岩成矿作用是同一地质过程不同阶段的产物,其含矿性主要由隐爆流体性质决定。大气降水和岩浆热液不同程度的混合作用和沸腾作用是角砾岩形成和矿质沉淀的主要原因。

关键词：地质学林子宗群火山岩热液角砾岩浅成低温热液型矿床冈底斯

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Conveyor-Belt Detection of Conditional Deep Convolutional Generative Adversarial Network

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Computers, Materials & Continua 2021年第11期69卷 2671-2685页

作者： Xiaoli hao Xiaojuan Meng Yueqin Zhang JinDong Xue jinyue Xia College of Information and Computer Taiyuan University of TechnologyJinzhongShanxi030600China State Grid Taiyuan Power Supply Company TaiyuanShanxi030012China International Business Machines Corporation(IBM) NYUSA

In underground mining,the belt is a critical component,as its state directly affects the safe and stable operation of the *** of the existing non-contact detection methods based on machine vision can only detect a single type of damage and they require pre-processing *** tends to cause a large amount of calculation and low detection *** solve these problems,in the work described in this paper a belt tear detection method based on a multi-class conditional deep convolutional generative adversarial network(CDCGAN)was *** the traditional DCGAN,the image generated by the generator has a certain degree of ***,a small number of labeled belt images are taken as conditions and added them to the generator and discriminator,so the generator can generate images with the characteristics of belt damage under the aforementioned ***,because the discriminator cannot identify multiple types of damage,the multi-class softmax function is used as the output function of the discriminator to output a vector of class probabilities,and it can accurately classify cracks,scratches,and *** avoid the features learned incompletely,skiplayer connection is adopted in the generator and *** not only can minimize the loss of features,but also improves the convergence *** with other algorithms,experimental results show that the loss value of the generator and discriminator is the ***,its convergence speed is faster,and the mean average precision of the proposed algorithm is up to 96.2%,which is at least 6%higher than that of other algorithms.

关键词： Multi-class detection conditional deep convolution generative adversarial network conveyor belt tear skip-layer connection

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Early Rehabilitation After Craniosynostosis Surgery

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Computers, Materials & Continua 2022年第8期72卷 3899-3912页

作者： Dan Wang Lanzheng Bian Xiaoyan hao Yiming Liu jinyue Xia Jing Hu Department of Neurosurgery Children’s Hospital of Nanjing Medical UniversityNanjing210008China Department of Surgery Children’s Hospital of Nanjing Medical UniversityNanjing210008China Quality Management Office Children’s Hospital of Nanjing Medical UniversityNanjing210008China International Business Machines Corporation(IBM) NY10504USA Department of Rehabilitation Medicine Children’s Hospital of Nanjing Medical UniversityNanjing210008China

Craniosynostosis is a common congenital craniofacial deformity caused by premature ossification and closure of one or more cranial *** will not only affect the normal development of the skull,but also may cause a variety of complications,damage the nervous system,and cause long-term effects on the development of physical and mental ***,it is particularly important to provide new ideas for clinical treatment by studying the rehabilitation methods of craniosynostosis,and to improve the cure *** this end,this paper studies the early rehabilitation methods after craniosynostosis surgery and designs a comprehensive early rehabilitation process and corresponding comprehensive early rehabilitation measures after *** comparative data also shows that after comprehensive early rehabilitation nursing measures,the duration of the postoperative swelling of sick children was reduced and the degree was significantly reduced,which alleviated the discomfort of sick children;and the time of sick children spent in ICU treatment and monitoring was reduced,and the separation time between sick children and their parents was shorten,is of great significance to the postoperative rehabilitation of *** addition,the total cost of hospitalization was reduced accordingly,which greatly increased the satisfaction of patients.

关键词： Craniosynostosis early rehabilitation desirability function

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Towards Public Integrity Audition for Cloud-IoT Data Based on Blockchain

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Computer Systems Science & Engineering 2022年第6期41卷 1129-1142页

作者： hao Yan Yanan Liu Shuo Qiu Shengzhou Hu Weijian Zhang jinyue Xia School of Network Security Jinling Institute of TechnologyNanjing211169China Fujian Provincial Key Laboratory of Network Security and Cryptology Fujian Normal UniversityFuzhou350007China Department of Mathematics and Computer Science Gannan Normal UniversityGanzhou341000China Network Security and Information Office Hohai UniversityNanjing210098China International Business Machines Corporation(IBM) New YorkNYUSA

With the rapidly developing of Internet of Things (IoT), the volume ofdata generated by IoT systems is increasing quickly. To release the pressure ofdata management and storage, more and more enterprises and individuals preferto integrate cloud service with IoT systems, in which the IoT data can be outsourced to cloud server. Since cloud service provider (CSP) is not fully trusted,a variety of methods have been proposed to deal with the problem of data integritychecking. In traditional data integrity audition schemes, the task of data auditing isusually performed by Third Party Auditor (TPA) which is assumed to be ***, in real-life TPA is not trusted as people thought. Therefore, theseschemes suffer from the underlying problem of single-point failure. Moreover,most of the traditional schemes are designed by RSA or bilinear map techniqueswhich consume heavy computation and communication cost. To overcome theseshortcomings, we propose a novel data integrity checking scheme for cloud-IoTdata based on blockchain technique and homomorphic hash. In our scheme, thetags of all data blocks are computed by a homomorphic hash function and storedin blockchain. Moreover, each step within the process of data integrity checking issigned by the performer, and the signatures are stored in blockchain through smartcontracts. As a result, each behavior for data integrity checking in our scheme canbe traced and audited which improves the security of the scheme greatly. Furthermore, batch-audition for multiple data challenges is also supported in our *** formalize the system model of our scheme and give the concrete *** performance analyses demonstrate that our proposed scheme is efficientand practical without the trust-assumption of TPA.

关键词： Blockchain cloud-IoT data integrity checking homomorphic hash function batch audition

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A Secure Signcryption Scheme for Electronic Health Records Sharing in Blockchain

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Computer Systems Science & Engineering 2021年第5期37卷 265-281页

作者： Xizi Peng Jinquan Zhang Shibin Zhang Wunan Wan hao Chen jinyue Xia School of Cybersecurity Chengdu University of Information TechnologyChengdu610225China International Business Machines Corporation(IBM) New York10041NY212USA

In the existing Electronic Health Records(EHRs),the medical information of patients is completely controlled by various medical *** such,patients have no dominant power over their own *** personal data are not only inconvenient to access and share,but are also prone to cause privacy *** blockchain technology provides a new development direction in the medical ***-based EHRs are characterized by decentralization,openness and non-tampering of records,which enable patients to better manage their own *** order to better protect the privacy of patients,only designated receivers can access EHRs,and receivers can authenticate the sharer to ensure that the EHRs are real and *** this study,we propose an identity-based signcryption scheme with multiple authorities for multiple receivers,which can resist N-1 collusion attacks among N *** addition,the identity information of receivers is anonymous,so the relationship between them and the sharer is not *** the random oracle model,it was proved that our scheme was secure and met the unforgeability and confidentiality requirements of ***,we evaluated the performance of the scheme and found that it had the moderate signcryption efficiency and excellent signcryption attributes.

关键词： Electronic health records blockchain identity-based signcryption multiple authorities multiple receivers

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