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Acta Geologica Sinica(English Edition) 2012年第4期86卷 799-809页

作者： WU Zhenhan YE Peisheng Patrick J.BAROSH HU Daogong LU Lu ZHANG Yaoling Chinese Academy of Geological Sciences Institute of Geomechanics Chinese Academy of Geological Sciences P.J.Barosh and associates 103 Aaron Ave.BristolRI 02809USA

Recent mapping and seismic survey reveal that intensive compression during the Early Cenozoic in the Qiangtang block of the central Tibetan Plateau formed an extensive complex of thrust sheets that moved relatively southward along several generally north-dipping great thrust systems. Those at the borders of the ~450 km wide block show it overrides the Lhasa block to the south and is overridden by the Hohxil-Bayanhar block to the north. The systems are mostly thin-skinned imbricate thrusts with associated folding. The thrust sheets are chiefly floored by Jurassic limestone that apparently slid over Triassic sandstone and shale, which is locally included, and ramped upward and over Paleocene-Eocene red-beds. Some central thrusts scooped deeper and carried up Paleozoic metamorphic rock, Permian carbonate and granite to form a central uplift that divides the Qiangtang block into two parts. These systems and their associated structures are unconformably overlain by little deformed Late Eocene-Oligocene volcanic rock or capped by Miocene lake beds. A thrust system in the northern part of the block, as well as one in the northern part of the adjacent Lhasa block, dip to the south and appear to be due to secondary adjustments within the thrust sheets. The relative southward displacement across this Early Cenozoic mega thrust system is in excess of 150 km in the Qiangtang block, and the average southward slip-rate of the southern Qiangtang thrusts ranged from 5.6 mm to 7.4 mm/a during the Late Eocene-Oligocene. This Early Cenozoic thrusting ended before the Early Miocene and was followed by Late Cenozoic crustal extension and strike-slip faulting within the Qiangtang block. The revelation and understanding of these thrust systems are very important for the evaluation of the petroleum resources of the region.

关键词： mega thrust outliers and thrust sheets structural windows Early Cenozoic Qiangtang block Northern Tibetan Plateau

A Thickness Gauge for the Lithosphere Based on Ce/Yb and Sm/Yb of Mantle–Derived Magmatic Rocks

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Acta Geologica Sinica(English Edition) 2018年第6期92卷 2120-2135页

作者： WU Zhenhan Patrick J. BAROSH ZHANG Qichao WU Jiwen YANG Yan Chinese Academy of Geological Sciences Beijing 100037China P.J.Barosh and associates 103 Aaron Ave.BristolRI02809USA Institute of Karst Geology Chinese Academy of Geological SciencesGuilin 541004China

A new method for determining the partial melting depth of mantle-derived magma and lithospheric thickness in continental regions is derived from REE geochemistry. This effective technique uses variations in the Ce/Yb and Sm/Yb ratios found in mainly volcanic rocks in continental China. The ratios change with the depth of origin consistent with the correlation between lithospheric thickness and the Ce/Yb and Sm/Yb ratios found in oceanic basalt. These ratios increase exponentially with the depth of origin, the lithospheric thickness, of a wide variety of Cenozoic volcanic basalt and Paleozoic kimberlite in the North China Craton, northeastern China continent and vicinity. This functional relationship with depth is shown in a plot of the ratios that forms a concordia curve, which is closely expressed by formulas using 8–degree polynomials. These provide a more accurate gage in measuring the lithospheric thickness than the traditional geophysical methods. When applied to volcanic rock of different ages it also reveals how the thickness has changed over time and thus, greatly aids the understanding of the tectonic history. Relations between the COcontent, mineral reactions and pressure in the upper asthenosphere beneath the base of the lithosphere appears to affect the proportions of REE in partial melts and brings about a close correlation between lithospheric thickness and the Ce/Yb and Sm/Yb ratios in mantle–derived magmatic rock. This thickness gauge, for both continental and oceanic lithosphere, provides a new approach in analyzing the lithospheric thickness in different tectonic settings and geologic times.

关键词： Ce/Yb and Sm/Yb ratios mantle–derived magmatic rock lithospheric thickness correlation analysis North China Craton

Dextral-Slip Thrust Faulting and Seismic Events of the Ms 8.0 Wenchuan Earthquake,Longmenshan Mountains,Eastern Margin of the Tibetan Plateau

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Acta Geologica Sinica(English Edition) 2009年第4期83卷 685-693页

作者： WU Zhenhan DONG Shuwen Patrick J. BAROSH ZHANG Zuoheng LIAO Huaijun Institute of Geomechanics CAGS Beijing 100081 China Chinese Academy of Geological Sciences Beijing 100037 China P.J. Barosh ＆ associates 103 Aaron Ave. Bristol RI 02809 USA China Geological Survey Beijing 100037 China Geological Brigade 316 Chongqing 401147 China

Dextral-slip thrust movement of the Songpan-Garze terrain over the Sichuan block caused the Ms 8.0 Wenchuan earthquake of May 12, 2008 and offset the Central Longmenshan Fault （CLF） along a distance of -250 km. Displacement along the CLF changes from Yingxiu to Qingchuan. The total oblique slip of up to 7.6 m in Yingxiu near the epicenter of the earthquake, decreases northeastward to 5.3 m, 6.6 m, 4.4 m, 2.5 m and 1.1 m in Hongkou, Beichuan, Pingtong, Nanba and Qingchuan, respectively. This offset apparently occurred during a sequence of four reported seismic events, EQ1-EQ4, which were identified by seismic inversion of the source mechanism. These events occurred in rapid succession as the fault break propagated northeastward during the earthquake. Variations in the plunge of slickensides along the CLF appear to match these events. The Mw 7.5 EQ1 event occurred during the first 0-10 s along the Yingxiu-Hongkou section of the CLF and is characterized by 1.7 m vertical slip and vertical slickensides. The Mw 8.0 EQ2 event, which occurred during the next 10-42 s along the Yingxiu-Yanziyan section of the CLF, is marked by major dextralslip with minor thrust and slickensides plunging 25°-35° southwestward. The Mw 7.5 EQ3 event occurred during the following 42-60 s and resulted in dextral-slip and slickensides plunging 10° southwestward in Beichuan and plunging 73° southwestward in Hongkou. The Mw 7.7 EQ4 event, which occurred during the final 60-95 s along the Beichuan-Qingchuan section of the CLF, is characterized by nearly equal values of dextral and vertical slips with slickensides plunging 45°-50° southwestward. These seismic events match and evidently controlled the concentrations of landslide dams caused by the Wenchuan earthquake in Longmenshan Mountains.

关键词： Ms 8.0 Wenchuan earthquake co-seismic slip slickensides seismic events Central Longmenshan Fault Eastern Tibetan Plateau

东昆仑牦牛山组流纹岩锆石U-Pb年龄及构造意义

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岩石学报 2010年第4期26卷 1150-1158页

作者：陆露吴珍汉胡道功 Patrick J BAROSH 郝爽周春景中国地质科学院地质力学研究所中国地质科学院 P.J.Barosh and associates 103 Aaron AvenueBristolRI 02809USA 天津地质矿产研究所

东昆仑水泥厂地区造山后火山-沉积盆地内形成的牦牛山组磨拉石建造不整合覆盖在前泥盆系地层之上,其形成时代的研究对限定东昆仑早古生代洋盆关闭的时间具有重要意义。应用激光烧蚀多接收器电感耦合等离子体质谱仪(LAMC-ICPMS)方法,对火... 详细信息

东昆仑水泥厂地区造山后火山-沉积盆地内形成的牦牛山组磨拉石建造不整合覆盖在前泥盆系地层之上,其形成时代的研究对限定东昆仑早古生代洋盆关闭的时间具有重要意义。应用激光烧蚀多接收器电感耦合等离子体质谱仪(LAMC-ICPMS)方法,对火山-沉积盆地内牦牛山组不同层位的流纹岩夹层进行了精确的锆石U-Pb定年研究。结果表明,盆地北缘牦牛山组底砾岩之上的流纹岩(B743-2)中岩浆锆石^(206)Pb/^(238)U年龄平均值为423.2±1.8Ma,盆地西缘牦牛山组底砾岩之上的流纹岩(B820-1)中岩浆锆石^(206)Pb/^(238)U年龄平均值为408.2±2.4Ma,盆地西缘和南缘牦牛山组中上部碎屑岩中流纹岩夹层(B705-1和B656-1)的岩浆锆石^(206)Pb/^(238)U年龄平均值分别为404.9±4.8Ma和399.6±2.8Ma。它们代表了牦牛山组不同层位火山岩的形成年龄,由此可以限定水泥厂地区牦牛山组形成时间为400～423Ma。上述年代学结果较为精确地限定了东昆仑早古生代洋盆关闭的构造年代。流纹岩中2486～920Ma元古代继承锆石的发现,说明东昆仑南的变质基底和扬子板块变质基底类似,是晋宁期0.9～1.0Ga罗迪尼亚超大陆形成时发育起来的。

关键词：牦牛山组流纹岩锆石U-Pb年龄晚志留世-早泥盆世东昆仑造山带

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东昆仑南部晚新生代逆冲推覆构造系统

地质通报 2007年第4期26卷 448-456页

作者：吴珍汉叶培盛赵文津 Patrick J.Barosh 胡道功中国地质科学院地质力学研究所中国地质科学院 P. J. Barosh and associates 103 Aaron Ave. Bristol RI 02809 USA

通过对东大滩—东温泉地区的路线地质观测与构造填图,在东昆仑南部发现晚新生代大型逆冲推覆构造系统。沿低角度逆冲断层,早二叠世大理岩和早三叠世砂板岩自北向南逆冲推覆于古新统—始新统风火山群紫红色砾岩和渐新世砖红色砂砾岩之上... 详细信息

通过对东大滩—东温泉地区的路线地质观测与构造填图,在东昆仑南部发现晚新生代大型逆冲推覆构造系统。沿低角度逆冲断层,早二叠世大理岩和早三叠世砂板岩自北向南逆冲推覆于古新统—始新统风火山群紫红色砾岩和渐新世砖红色砂砾岩之上,形成大量不同规模的飞来峰;沿主逆冲断层发育厚层断层角砾岩与断层泥,局部形成碳酸盐质糜棱岩。东昆仑南部逆冲推覆构造的发育时代为渐新世晚期—中新世早期,主要形成、活动时期为26～13.5Ma;估算最小逆冲推覆距离为30～35km,最小逆冲推覆运动速率为2.4～2.8mm/a。东昆仑南部晚新生代逆冲推覆构造运动与现今山脉快速隆升存在着动力学成因联系。

关键词：推覆构造逆冲断层飞来峰晚新生代东昆仑南部

Modeling Common-Mode Current Due to Asymmetric Aging of Machine Winding Insulation

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Complex System Modeling and Simulation 2023年第2期3卷 118-128页

作者： Jin Zhao aaron D.Brovont Department of Electrical and Computer Engineering The University of AlabamaTuscaloosaAL 35487USA the PC Krause and associates West LafayetteIN 47906USA

Machine stator winding insulation degradation is one of the main results of machine *** is non-negligible once this degradation process becomes asymmetric between *** traditional way to determine the insulation state of health is a partial discharge ***,this method requires the system offline,which causes production loss and extra administrative *** paper presents an idea for better characterizing the insulation machine’s state of health using common-mode(CM)behavior in the machine-drive *** the help of circuit decomposition methods and modeling tools,the CM quantities due to asymmetric aging show a unique characteristic that distinguishes itself from other differential-mode(DM)quantities in the equivalent *** is shown effective to represent the asymmetric aging effect from the detection of system leakage *** paper provides an analytical method to quantify this characteristic from mathematical approaches,and a proper approximation has been made on the CM equivalent model(CEM)such that the CM behavior is accurately *** proposed method will serve the purpose of predicting machine abnormal behavior using the simple RLC *** can adapt this method to quantify and characterize the machine insulation state of health(SOH).

关键词： common-mode equivalent circuit machine decomposition machine stator winding insulation health model approximation

中美合作东昆仑造山带地质填图的启示：填图理念与填图方法

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地质通报 2009年第10期28卷 1411-1418页

作者：胡道功 PATRICK J Barosh 吴珍汉叶培盛张耀玲周春景倪晋宇中国地质科学院地质力学研究所北京100081 P.J.Barosh and associates 103 Aaron AvenueBristolRI 02809USA 中国地质科学院北京100037

在中美合作东昆仑造山带地质填图实践的基础上,结合美国地质调查局(USGS)最近完成的地质填图实例的对比分析,初步总结和探讨了美国的地质填图方法和填图理念。结果表明,尽管地球物理和3S技术在地质填图中的应用不断推陈出新,但是地质填... 详细信息

在中美合作东昆仑造山带地质填图实践的基础上,结合美国地质调查局(USGS)最近完成的地质填图实例的对比分析,初步总结和探讨了美国的地质填图方法和填图理念。结果表明,尽管地球物理和3S技术在地质填图中的应用不断推陈出新,但是地质填图理念、地质填图方法和地质报告风格自USGS成立以来未曾改变。"对所有地质实体按岩性进行划分和详细填图"的地质填图理念伴随USGS走过了130年曲折而艰难的历程。"地质现象引导地质路线"的填图方法是美国地质填图长期采用的方法,但应用于澳大利亚厚层风化壳和加拿大冰雪覆盖区的高精度地球物理填图方法并没有应用到造山带地质填图中,而遥感技术成为造山带基岩区填图的重要技术支撑。美国基岩区高效的地质填图速度并不能用高精度地球物理和遥感技术的应用来解释,已有地质成果的继承与利用、填图工作模式、填图与科学研究的合理定位、简明地质报告和GIS的地质应用才是决定地质填图速度的关键因素。

关键词：中美合作填图填图方法填图理念东昆仑造山带

Duodenal gangliocytic paraganglioma with lymph node metastases: a case report and comparative review of 31 cases

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World Journal of Clinical Cases 2017年第6期5卷 222-233页

作者： Sahara J Cathcart aaron R Sasson Jessica A Kozel Jennifer M Oliveto Quan P Ly Department of Pathology and Microbiology 985900 Nebraska Medical Center Department of Surgery Division of Surgical Oncology Stony Brook Medicine Midwest Pathology associates LLC Department of Radiology University of Nebraska Medical Center Department of Surgery Division of Surgical Oncology University of Nebraska Medical Center

Gangliocytic paraganglioma(GP) is a rare tumor of uncertain origin most often located in the second portion of the duodenum. It is composed of three cellular components: Epithelioid endocrine cells, spindlelike/sustentacular cells, and ganglion-like cells. While this tumor most often behaves in a benign manner, cases with metastasis are reported. We describe the case of a 62-year-old male with a periampullary GP with metastases to two regional lymph nodes who was successfully treated with pancreaticoduodenectomy. Using Pub Med, EMBASE, EBSCOhost MEDLINE and CINAHL, and Google Scholar, we searched the literature for cases of GP with regional lymph node metastasis and evaluated the varying presentations, diagnostic workup, and disease management of identified cases. Thirty-one cases of GP with metastasis were compiled(30 with at least lymph node metastases and one with only distant metastasis to bone), with age at diagnosis ranging from 16 to 74 years. Ratio of males to females was 19:12. The most common presenting symptoms were abdominal pain(55%) and gastrointestinal bleeding or sequelae(42%). Twenty-five patients underwent pancreaticoduodenectomy. Five patients were treated with local resection alone. One patient died secondary to metastatic disease, and one died secondary to perioperative decompensation. The remainder did well, with no evidence of disease at follow-up from the most recent procedure(except two in which residual disease was deliberately left behind). Of the 26 cases with sufficient histological description, 16 described a primary tumor that infiltrated deep to the submucosa, and 3 described lymphovascular invasion. Of the specific immunohistochemistry staining patterns studied, synaptophysin(SYN) stained all epithelioid endocrine cells(18/18). Neuron specific enolase(NSE) and SYN stained most ganglion-like cells(7/8 and 13/18 respectively), and S-100 stained all spindle-like/sustentacular cells(21/21). Our literature review of published cases of GP

关键词： Gangliocytic paraganglioma metastases duodenum lymph node dissection pancreaticoduodenectomy

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裙楼商业中心

设计新潮 2019年第3期 98-99页

作者：无 Kohn Pedersen Fox associates Elkus Manfredi Architects

坐落在哈德逊广场10号楼与30号楼之间的裙楼是该区域的商店与餐厅。这是一个10万平方米的商业中心,一经落地便成为了在多业态环境中建设购物中心的新标杆。作为纽约市时尚和餐饮的首选地之一,购物区包括100多家商店及纽约市第一家Neiman... 详细信息

坐落在哈德逊广场10号楼与30号楼之间的裙楼是该区域的商店与餐厅。这是一个10万平方米的商业中心,一经落地便成为了在多业态环境中建设购物中心的新标杆。作为纽约市时尚和餐饮的首选地之一,购物区包括100多家商店及纽约市第一家Neiman marcus奢侈品百货,向游客和居民提供精挑细选的顶级品牌,而餐厅区则汇集纽约最著名的美食店。

关键词：商业中心新标杆购物中心奢侈品顶级品牌纽约市裙楼餐厅