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Late Cretaceous-Cenozoic Multi-Stage Denudation at the Western Ordos Block： Constraints by the Apatite Fission Track Dating on the Langshan

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Acta Geologica Sinica(English Edition) 2018年第2期92卷 536-555页

作者： CUI Xianyue ZHAO Qihua ZHANG Jin WANG Yannan ZHANG Beihang NIE Fengjun QU Junfeng ZHAO Heng State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology) Chengdu 610059 China The Institute of Geology Chinese Academy of Geological Seiences Beijing 100037 China Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Orumqi 830011 China Donghua Polytechnic University Nanchang 330013 China

The apatite fission track dating of samples from the Dabashan （i.e., the Langshan in the northeastern Alxa Block） by the laser ablation method and their thermal history modeling of AFT ages are conducted in this study. The obtained results and lines of geological evidence in the study region indicate that the Langshan has experienced complicated tectonic-thermal events during the the Late Cretaceous-Cenozoic. Firstly, it experienced a tectonic-thermal event in the Late Cretaceous （-90-70 Ma）. The event had little relation with the oblique subduction of the Izanagi Plate along the eastern Eurasian Plate, but was related to the Neo-Tethys subduction and compression between the Lhasa Block and Qiangtang Block. Secondly, it underwent the dextral slip faulting in the Eocene （-50-45 Ma）. The strike slip fault may develop in the same tectonic setting as sinistral slip faults in southern Mongolia and thrusts in West Qinling to the southwest Ordos Block in the same period, which is the remote far-field response to the India-Eurasia collision. Thirdly, the tectonic thermal event existed in the late Cenozoic （since -10 Ma）, thermal modeling shows that several samples began their denudation from upper region of partial annealing zone （PAZ）, and the denudation may have a great relationship with the growth of Qinghai-Tibetan Plateau to the northeast. In addition, the AFT ages of Langshan indicate that the main body of the Langshan may be an upper part of fossil PAZ of the Late Cretaceous （-70 Ma）. The fossil PAZ were destroyed and deformed by tectonic events repeatedly in the Cenozoic along with the denudation.

关键词： apatite fission track cooling history thermal modeling Late Cretaceous-Cenozoic,Langshan

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Predicting the thermal Behavior in Functional Textile Fibers Having Embedded Electronics

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Advanced Fiber Materials 2022年第6期4卷 1609-1619页

作者： Shaun Berry Shawn Redmond Tairan Wang Mordechai Rothschild MIT Lincoln Laboratory 244 Wood StreetLexingtonMA 02421USA

In this paper,both steady-state and transient thermal simulations were performed on functional fibers having an embedded electronic chip acting as a heat *** were conducted for a range of different fiber materials and arbitrary fiber cross-sectional *** show that under steady-state heating conditions,the thermal response for any arbitrary fiber shape and fiber material system was convection dominated regardless of the effective thermal conductivity of the fiber,and that the corresponding temperature rise within the fiber can be predicted analytically allowing for the maximum temperature to be estimated for any known heat load and fiber *** the case of transient heating,we show that for pulsed power operation of the embedded electronic device,the maximum temperature reached in the fiber is always greater than the maximum temperature of the equivalent steady-state average ***,high peak powers can be safely achieved if the power-on pulse time and duty cycle are selected to limit the maximum temperature reached in the *** on the results from the transient simulations,a set of criteria was developed to determine whether the operating conditions would be:(1)allowable for the fiber system,thus requiring no transient simulations,(2)requiring a transient simulation to verify that the maximum temperature is acceptable,and(3)the operating conditions are too severe and device operation at these conditions are not practical.

关键词： Functional fibers Smart fibers thermal modeling Fabrics MOEMS

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Late Mesozoic Thermotectonic Evolution of the Jueluotage Range,Eastern Xinjiang,Northwest China:Evidence from Apatite Fission Track Data

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Acta Geologica Sinica(English Edition) 2008年第2期82卷 348-357页

作者： ZHU Wenbin WAN Jinglin SHU Liangshu ZHANG Zhiyong SU Jinbao SUN Yah GUO Jichun ZHANG Xueyun State Key Laboratory for Mineral Deposits Research （Nanjing University） Department of Earth Sciences Nanjing University Nanjing 210093 China State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beijing 100029 China

Although many authors have emphasized the Cenozoic history of deformation, exhumation and cooling in the Tiaushan area related to the India-Asia collision, very little is known about the Mesozoic history of compression and uplift within the Tianshan. In order to obtain information about the Mesozoic exhumation history and processes of cooling in eastern Tianshan, fission track methods on apatite were used. Sampling was made in the Jueluotage Range. Three samples （Z001-Z003） were taken from granite in borehole ZK6301 of Yandong pluton; the ages range from 97.0 to 87.6 Ma that are much younger than the pluton age which was dated by U-Pb zircon at 334±2 Ma. Two samples in northern piedmont of the Jueluotage Range were collected from Jurassic strata in Dikaner （DK001） and Dananhu （D001） whose ages are 91.5 and 93.4 Ma respectively. The average apparent exhumation rate is 0.039 nun/a calculated by extrapolation on the basis of Yandong samples, indicating an extremely slow exhumation in the Jueluotage Range since the Late Cretaceous. Two Jurassic samples reached the maximum depths after deposition and experienced the maximum temperatures of ca. 105 and 108℃ until the late Early Cretaceous before a period of cooling and exhumation occurred at 114 and 106 Ma.

关键词： Jueluotage Range apatite fission track exhumation cooling thermal modeling Xinjiang

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Development of a BGA Package Based on Si Interposer with Through Silicon Via

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Tsinghua Science and Technology 2011年第4期16卷 408-413页

作者：张灏蔡坚王谦王涛王水弟 Institute of Microelectronics Tsinghua University Tsinghua National Laboratory for Information Science and Technology

A ball grid array （BGA） package based on Si interposer with through silicon via （TSV） was de- signed. thermal behaviors of the designed BGA with Si interposer has been analyzed and compared to a conventional BGA with BT substrate in the approach of finite element modeling （FEM）. The Si interposer with TSV was then fabricated and the designed BGA package was demonstrated. The designed BGA pack- age includes a 100 ~m thick Si interposer, which has redistribution copper traces on both sides. Through vias with 25 to 40 ~m diameter were fabricated on the Si interposer using deep reactive ion etching （DRIE）, plasma enhanced chemical vapor deposition （PECVD）, copper electroplating and chemical mechanical pol- ishing （CMP）, etc. TSV in the designed interposer is used as electrical interconnections and cooling chan- nels. 5 mm by 5 mm and 10 mm by 10 mm thermal chips were assembled on the Si interposer.

关键词： ball grid array (BGA) through silicon via (TSV) Si interposer thermal modeling

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The magmatic activity mechanism of the fossil spreading center in the Southwest sub-basin, South China Sea

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Science China Earth Sciences 2014年第2期57卷 1653-1663页

作者： MENG Lin ZHANG Jian Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences College of Earth Science University of Chinese Academy of Sciences

Petrogeochemical data indicate that after the end of seafloor spreading,residual magmatic activity still exists in the deep basin of the South China *** using different viscous structure models beneath the fossil spreading center of the Southwest sub-basin we simulated the amount of melt produced,the length of the melting period,and the thermal evolution process in terms of geothermics and the buoyant decompression melting *** compared the results of our model with observed heat flow,seismic,and petrogeochemistry *** results show that depletion buoyancy induced by buoyant decompression melting plays an important role in the melting process,while retention buoyancy,thermal buoyancy,and viscous shear force have only a weak influence on the melting *** the length of the melting period,we determined that for the three viscous structures models the magmatic activity lasted about 5,12,and 15 *** the effect of buoyant depression melting,local high-temperature areas will develop under the basin,which can explain the low-velocity layer detected by seismic exploration in the middle and upper lithosphere of the Southwest *** also simulated the possible lithology distribution beneath the fossil spreading center with the physical conditions of different viscous structure,different temperature structure,and different melting fraction,which provided a greater understanding of the rock petrogeochemical data of the deep sea basin in the South China Sea.

关键词： Southwest sub-basin buoyant decompression melting fossil spreading center magmatic activity thermal modeling

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thermal regime of the North China Craton:Implications for craton destruction

Thermal regime of the North China Craton:Implications for cr...

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中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： Lijuan He State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of Sciences

This paper presents an overview of the thermal studies dealing with heat flow data,lithospheric thermal thickness,basin thermal history,and thermal modeling in the North China Craton(NCC),with aim to provide ideas for geodynamical mechanism on the NCC *** flow investigations show that only a small cold core is still preserved in the Ordos,western NCC,with low heat flow value of b 50 m W/*** mean heat flow in the eastern NCC is4 m W/m,close to the global continental *** thermal lithosphere beneath the NCC thins eastward from40 km in the west to0 km in the east,with similar trend as the seismic ***,there is a disparity in thickness between the thermal and seismic lithosphere,which is0 km in the western NCC and decreases *** implies an eastward thinning of the rheological boundary layer(RBL),which could be attributed to the lowering of asthenospheric viscosity due to dehydration of the subducted Pacific *** geothermal regime confirms that the destruction occurred mainly in the eastern NCC,whereas the western NCC was only locally *** sedimentary basins in the NCC have recorded distinct thermal histories since the *** Ordos Basin located in the western NCC experienced its maximum paleo-temperature in the Mesozoic,associated with compression,uplift and *** contrast,most depressions of the Bohai Bay Basin in the eastern NCC experienced their maximum heat flow at the Cenozoic era,accompanied by episodic extension,rapid subsidence and *** boreholes in the Jiyang Depression recorded high heat flow of N 80 m W/mand surface denudation of km in the *** paper summarizes several dynamical models related to lithospheric thinning,including the mantle plume,delamination,subduction and lithospheric extension,and analyzes their near-surface tectono-thermal *** results suggest that the regional thermal–chemical erosion by vigorous mantle convection within the big mantle wed

关键词： North China Craton Heat flow thermal thickness of the lithosphere Basin thermal history thermal modeling Destruction of the craton

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