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Multifractal analysis of resting state fMRI series in default mode network: age and gender effects

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Chinese Science Bulletin 2014年第25期59卷 3107-3113页

作者： Huangjing Ni Xiaolin Huang Xinbao Ning Chengyu Huo tiebing liu De Ben School of Electronic Science and Engineering Nanjing University School of Physics and Electronic Engineering Changshu Institute of Technology Department of Biomedical Engineering Jinling Hospital

Age-related changes of resting state in default mode network(DMN)may provide new clues to the developing mechanism of normal brain as well as early diagnosis and therapy of some neuropsychiatric *** application of multifractal theory to functional magnetic resonance imaging(fMRI)signals has recently raised increasing *** aim to explore the multifractal characteristics underlying the resting state functional magnetic resonance imaging(rs-fMRI)series extracted from DMN,and two issues are mainly discussed:(1)whether there exist multifractals in rs-fMRI series;(2)whether it is possible to distinguish between the different ages or genders by means of multifractal *** demonstrated the existence of multifractals in rs-fMRI series in *** addition,slight differences between young subjects and middle-aged or elderly subjects can be successfully detected by Dasa,a modified measure we ***,it is revealed that the rs-fMRI series from young subjects possess smaller averaged scale index and weaker long range correlation,while those from middle-aged or elderly people present increasing averaged scale index andstronger long range *** no significant statistical differences has been found between male and female *** results,therefore,highlight the potential usefulness of multifractal analysis in fMRI series of a certain brain region,and provide important insights into healthy aging in DMN.

关键词：多重分形分析功能磁共振成像年龄相关状态静息性别网络磁共振成像技术

Locating Mechanism of Quartz Vein Gold Deposits in Rushan, Shandong Province

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Acta Geologica Sinica(English Edition) 1998年第1期72卷 77-86页

作者： XIE Hongyuan SHEN Yuanchao WANG Yuejun LI Guangming liu tiebing ZHANG Qirui ZEN Qingdong Institute of Geology Chinese Academy of SciencesBeijing 100029

According to the differences in ore-controlling structural systems and the characteristics of host rocks, textures and structures of ores and mineral associations of ores, quartz vein-type gold deposits in the Rushan area can be divided into the Rushan and Tongling styles. Rushan style gold deposits, occurring in the Kunyushan complex, include Rushan, Tangjiagou and Tongxishan gold mines. They are distributed along four NNE-trending and sinistral, compresso-shear faults with a right stepping array. A prominent characteristic of the gold mineralization is that the orebodies in neighbouring gold deposits distributed in a single ore-controlling fault zone take opposite pitches. Study of the locating structures of the quartz vein gold deposits shows that the Rushan-style gold deposits are characterized by NNE and NE zoning. Therefore, the intersections of the NE direction of the known gold deposit and the neighbouring NNE-trending fault zones are favourable for looking for gold deposits, and the ends of the curving segments of sinistral and right-stepping faults are favourable for looking for large gold deposits. Tongling-style gold deposits occur in the Sanfosan porphyritic monzonitic granite. Emplacement of gold deposits is controlled by arcuate and radiate structures formed during the intrusion of the Sanfoshan porphyritic monzonitic granite; the radiate faults controlled the distribution of orebodies and the arcuate faults controlled the pitch of the orebodies.

关键词： vein type gold deposit Muping-Rushan gold mineralized zone conjugate orebodies arcuate and radiate structures

Tellurium-Gold Mineralization Related to Cryptoexplosive Breccias within Volcanic Pipe in Zhuojiazhuang Gold Deposit,Shandong Province, China

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Global Geology 2002年第2期7卷 157-174页

作者： Zeng Qingdong liu tiebing Shen Yuanchao Li Guangming Institute of geology and geophysics Chinese Academy of SciencesBeijing100029China Institute of geology and geophysicsChinese Academy of SciencesBeijing100029China Institute of geology and geophysicsChinese Academy of SciencesBeijing100029China Institute of geology and geophysicsChinese Academy of SciencesBeijing100029China

Zhuojiazhuang gold deposit (ZGD) is the most enriched breccia pipe type gold deposit in East China, resulted from cryptoexplosion related to alkalinic magmatism and orebearing fluid filling. The ZGD is a small-sized mine with over 5 tons of gold reserves and grade of 156g/t in average and the highest 2 728 g/t as known. In addition, tellurium and silver are also *** mineralized breccia pipe is cylinder-like in shape with 15 m long and 10 m wide and controlled by intersection ofNW and EW trend faults. Mining level has reached 170 m below the surface, but the whole pipe mineralization is still stable. Mineralization commonly occurs within the cements of breccias. Gold ores consist of hydrothermal breccia ore, shatteredbreccia ore and cataclastic ore. From the center of the ore body outwards, there is the transition from hydrothermal breccia toshattered breccia and then to cataclastic ores. According to composition and amount of the cements, the hydrothermal brecciaores can further be divided into three subtypes: sulfides cemented, hydrothermal mineral cemented and magma *** content of gold is closely related to the types of the cements. The grade of the sulfide cemented breccia is the highestone, usually more than 1 000 g/t, and the known maximum grade is 2 728 g/t. The composition of the shattered breccia ismainly dioritic porphyrite and cemented by hydrothermal minerals, the grade ranges from ten to several tens g/t. The catsclastic ores are mainly composed of dioritic porphyrite, syenitic porphyry, as well as carbonate with mineralized veins, and the grade is only 35 g/*** ore minerals consist of pyrite, native tellurium, sphalerite, with minor calaverite, galena and altaite. Gangueminerals are composed of microcrystalline quartz, decktite and fluorite, with minor sericite and calcite. Brecciated and disseminited structures are main structures of ores. Four ore-forming stages are defined: microcrystalline quartz-pyrite stage,microcrystalline q

关键词： Hydrothermal breccias,Zhuojiazhuang tellurium-gold deposit,Shandong Province

Geology of Gold Ore Deposits in Western Linyi of Shandong Province,China

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Global Geology 2003年第1期8卷 69-81页

作者： tiebing liu Qingdong Zeng Yuanchao Shen Guangming Li Institute of Geology and Geophysics Chinese Academy of SciencesInstitute of Geology and GeophysicsChinese Academy of SciencesInstitute of Geology and GeophysicsChinese Academy of SciencesInstitute of Geology and GeophysicsChinese Academy of Sciences Beijing100029 ChinaBeijing100029 ChinaBeijing100029 ChinaBeijing100029 China

Western Linyi of Shandong Province is one of the most important gold ore mineralization concentration areas. Mesozoic gold ore deposits in this area can be subdivided into two types: magmatic hydrothermal and epithermal gold deposits. The occurrences of gold ore bodies are controlled by structures. Related subvolcanic rocks can be subdivided into high potassium calc-alkali series and alkaline series. These two types of subvolcanic rocks are of different geochemical features and different sources. The high potassium calc-alkali rocks are derived from enriched mantle and contribute to the formation of magmatic hydrothermal gold ore deposits including skarn gold-copper ore deposit and porphyry gold ore deposit. Alkaline rocks are derived from lower crust and they host epithermal gold deposits. Comprehensive studies show that there is no evolutionary or transitional relationship temporally and genetically between the epithermal gold deposit and the high temperature magma hydrothermal gold deposit in the western Linyi.

关键词： magmatic hydrothermal gold deposit, epithermal gold deposit, diorite porphyry, syenite porphyry,western Linyi

Fluid Inclusion Feature of Gold-Bearing Quartz Veins from the Jinniushan Gold Deposit, Shandong, China

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Global Geology 2002年第2期7卷 175-182页

作者： Shen Ping Shen Yuanchao Li Guangming liu tiebing Zeng Qingdong Institute of Geology and Geophysics Chinese Academy of SciencesBeijing100029China Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China

The auriferous veins at Jinniushan occurs within the Jinniushan faulted zone in the Kunyushan Granite. Optical observation reveals that gold ore body formed during the main stage of hydrothermal activity. Detailed geothermometric studies of fluid inclusions from the veins show that the forming temperature ranges between 130℃ and 370℃ and the salinity is from 4.01 to 15.21 wvt percent NaCl. The ore-forming fluid is featured by low to moderate salinity, and low to moderate temperature. According to investigations of the values of vapor/liquid and temperatures of the ore-forming fluids, we propose that the boiling fluid inclusions exist in the main mineralization stages. Fluid boiling is suggested as a mechanism for the precipitation of gold from the hydrothermal fluid in the Jinniushan gold deposit.

关键词： Quartz vein,Jinniushan faulted zone,Fluid inclusions,Microthermomety,Jinniushan

GENETIC　TYPES　AND　FORMATIONON　FORMATION　OF　SUB－MICRON　AND　DISSEMINATED　GOLD　DEPOSITS　IN　YOUJIANG　BASIN，SOUTH　CHINA

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Scientia Geologica Sinica 1994年第4期 415-423页

作者： Li Zhong and liu tiebing(Institute of Geology, Chinese Academy of Sciences, Beijing 100029)

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ＧＥＮＥＴＩＣＴＹＰＥＳＡＮＤＦＯＲＭＡＴＩＯＮＯＮＦＯＲＭＡＴＩＯＮＯＦＳＵＢ－ＭＩＣＲＯＮＡＮＤＤＩＳＳＥＭＩＮＡＴＥＤＧＯＬＤＤＥＰＯＳＩＴＳＩＮＹＯＵＪＩＡＮＧＢＡＳＩＮ，ＳＯＵＴＨＣＨＩＮＡＬｉＺｈｏｎｇａｎｄＬｉｕＴｉｅｂｉｎｇ（Ｉｎｓｔ...

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Geochronologic and isotope geochemical constraints on magmatism and associated W-Mo mineralization of the Jitoushan W-Mo deposit,middle-lower Yangtze Valley

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Geochronologic and isotope geochemical constraints on magmat...

训练字典及其稀疏表示在近红外光谱法检测柴油中的应用

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Guoxue Song Kezhang Qin Guangming Li tiebing liu Jinxiang Li Xianhua Li Zhaoshan Chang Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of Sciences CODES ARC Centre of Excellence in Ore Deposits University of Tasmania

The Jitoushan W-Mo ore body is a typical skarn-type deposit with the potential for porphyry Mo mineralization at depth. As it is newly discovered,only a few studies have been conducted on the geochronology and ore genesis of this *** ore district consists of Cambrian to Silurian sedimentary and low-grade metasedimentary strata,intruded by granodiorite, diorite porphyry,granite porphyry,and quartz *** W-Mo ore bodies are hosted in the contact zone between the granodiorite and Cambrian limestone *** the granodiorite near the contact zone,quartz vein type and disseminated sulphide mineralization are well *** Mo-bearing granite porphyry has been traced at depth by *** results reveal two discrete magmatic events at ca.138 and ca.127 Ma in the study *** molybdenite Re-Os isochronal age of 136.6±1.5 million years is consistent with the first magmatic *** zircon Hf isotope(ε(t) =—12.55-3.91),sulphide isotopes( δS = 3.32-5.59‰),and Re content of molybdenite(Re = 6.424-19.07μg) indicate that the ore-forming materials were mainly derived from the deep *** regional tectonic system switched from a Late Jurassic transpressive regime to an earliest Cretaceous extensional regime at ca.145 Ma,and at ca.138 Ma,the Jitoushan W-Mo deposit formed in an extensional setting.

关键词： middle-lower Yangtze Valley Jitoushan W-Mo deposit skarn-type W-Mo deposit SIMS U-Pb age Re-Os isotopic age southern Anhui Province

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化学学报 2012年第18期70卷 1969-1973页

作者：周扬戴曙光吕进刘铁兵施秧上海理工大学光电信息与计算机工程学院上海200093 浙江科技学院近红外应用技术研究室杭州310023

为提高柴油组分近红外法检测的精度,提出了一种基于训练字典稀疏表示下的建模方法并用于柴油十六烷值、沸点和芳烃总量的检测.该法先用柴油光谱结合K均值奇异值分解(K-SVD)算法完成对冗余字典的训练,再用正交匹配追踪算法(OMP)寻找柴油... 详细信息

为提高柴油组分近红外法检测的精度,提出了一种基于训练字典稀疏表示下的建模方法并用于柴油十六烷值、沸点和芳烃总量的检测.该法先用柴油光谱结合K均值奇异值分解(K-SVD)算法完成对冗余字典的训练,再用正交匹配追踪算法(OMP)寻找柴油光谱在该训练字典下的稀疏表示系数,用该系数建立了柴油十六烷值、沸点和芳烃总量偏最小二乘预测模型.实验比对了训练字典、傅里叶字典和小波字典稀疏表示下的柴油组分预测模型性能,其中训练字典的表示系数建模性能最优且比其他两种字典的预测性能有较大幅度改进,验证了该法在近红外光谱检测建模领域推广能改善预测的准确度和稳健性.

关键词：近红外柴油组分稀疏表示冗余字典字典训练

Tanlu Fault Zone and Gold Ore Metallogenesis

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Global Geology 2002年第1期7卷 50-53页

作者： SHEN Yuanchao, ZENG Qingdong and liu tiebing(Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, P. R. China ) Institute of Geology and Geophysics Chinese Academy of Sciences Beijing100029 P. R. China

Tanlu Fault Zone (TFZ) is a large NE trending deep fracture system in East China and is about 2500 km long. It extends from the south of Lujiang to Tancheng, and passes through the Bohai Sea and continues to the north, where it branches into Yilan - Shulan Fault and Dunhua - Mishan Fault. TFZ is a long lasting huge deep - rooted lithospherical fault system with different characteristics in different parts and at different periods of its evolution. TFZ also controls the distribution and occurrences of many superlarge, large, middle and small sized gold ore deposits, e.g. Jiapigou, Haigou, Xiaoxinancha and Ciweigou gold deposits in Noaheast China; Linglong, Jiaojia, Sanshandao, Taishang, Xincheng, Rushan, and Pengjiakuang gold deposits in Jiaodong Peninsula of Shandong Province; and Guilaizhuang and Yinan in Western Shandong Province.

关键词： Tanlu fault zone, Gold deposit, Minerogenetic region