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| 1 | The magnetic properties of Serbian loess and its environmental significance显示文摘This paper reports a loess-paleosol sequence located in the Danube River basin,Serbia,which formed at least since the latest part of the early Pleistocene,and before the paleomagnetic B/M boundary.Various magnetic parameters of the Serbian V-L1-V-S4 loess-paleosol sequence have been measured and analyzed in the Titel Loess Plateau.These parameters show a very similar magnetic behavior compared with that of the Chinese loess.There is a general positive relationship between magnetic susceptibility() and pedogenesis.The main contributors to are the magnetic grains of SP(superparamagnetic) and SD(single domain) magnetic domains,while MD(multi domain) contributes only a small percentage.The difference in between loess and paleosol mainly is caused by pedogenesis.The very fine magnetic minerals increase gradually with increasing soil development(from loess to soil),and they lead to higher.The thermomagnetic curves show thatmagnetic minerals in the loess layers are magnetite and maghemite,both providing a major contribution to.In contrast the paleosol layers mainly are composed of magnetite,with almost no or a very small amount of maghemite,as implied by a reversible thermomagnetic behavior.This indicates that pedogenic conditions during V-S3 and V-S4 strong soil development have resulted in maghemite that is no longer stable,and has been resolved or converted to other stable phase minerals.This likely indicates that soil moisture during V-S3 and V-S4 development exceeded a critical condition of maghemite stability. | LIU XiuMing LIU Zhi Lü Bin MARKOVI S B CHEN JiaSheng GUO Hui MA MingMing ZHAO GuoYong FENG Hua | 2013 | Chinese Science Bulletin2013,58,3: | 7 |
| 2 | Oxidative Stress and Matrix Metalloproteinase-9 in Acute Ischemic Stroke: The Biomarker Evaluation for Antioxidant Therapies in Stroke (BEAT-Stroke) Study显示文摘 | Peter J. Kelly Jason D. Morrow MingMing Ning Walter Koroshetz Eng H. Lo Erin Terry Ginger L. Milne Jane Hubbard Hang Lee Elizabeth Stevenson Megan Lederer Karen L Furie | 2008 | Stroke2008,,1: | 2 |
| 3 | Novel deicing approach of overhead bundled conductors of EHV transmission systems显示文摘 | GUANGHUI C SHENG S MINGMING L | 2009 | IEEE Transactions on Power Delivery2009,24,3: | 1 |
| 4 | Oxidative Stress and Matrix Metalloproteinase-9 in Acute Ischemic Stroke: The Biomarker Evaluation for Antioxidant Therapies in Stroke (BEAT-Stroke) Study显示文摘 | Peter J. Kelly Jason D. Morrow MingMing Ning Walter Koroshetz Eng H. Lo Erin Terry Ginger L. Milne Jane Hubbard Hang Lee Elizabeth Stevenson Megan Lederer Karen L Furie | 2008 | Stroke2008,,1: | 1 |
| 5 | Seismic risk assessment of a RC frame designed according to Chinese codes显示文摘 | LüDagang Yu Xiaohui Jia Mingming Wang Guangyuan | 2014 | Structure and Infrastructure Engineering2014,10,12: | 1 |
| 6 | Transformation Process and Mechanism of Lithium Borates显示文摘Amounts of lithium-containing salt lake brine resources are widely distributed in the four provinces named Qinghai,Tibet,Inner Mongolia and Xinjiang province,especially the salt lakes in Qinghai-Tibet Plateau are abundant | CAO Lina L IU Mingming GAO Daolin GUO Yafei DENG Tianlong | 2014 | Acta Geologica Sinica(English Edition)2014,88,S1: | 0 |
| 7 | Origin of Halite in the Lanping–Simao Basin,Southeastern Tibetan Plateau,China:Evidence from Sr and Cl Isotopes显示文摘The Lanping−Simao Basin is located on the southeastern Tibetan Plateau,China,and contains massive evaporites.The origin of evaporites in the basin has been hotly debated because of the strong transformation by tectonic movement.Forty halite samples from borehole MK-3 in the Mengyejing area of the basin were collected and analyzed using XRD,Cl-Sr isotopes and chemical compositions to trace the origin of the evaporites in the basin.The Br×10^(3)/Cl ratios of the halite samples are between 0 and 0.55,most of which are synchronized with the law of seawater evaporation and at the stage of halite precipitation from seawater,indicating that the evaporites are mainly of marine origin.The^(87)Sr/^(86)Sr ratios range from 0.707489 to 0.711279;after correction,the^(87)Sr/^(86)Sr 145 Ma ratios range from 0.704721 to 0.707611,equivalent with the 87Sr/86Sr ratios of seawater at 145 Ma,indicating a marine origin.The decay of 87Rb in the evaporite during deposition,change of the depositional environment and the unsealed environment at a later period resulted in the present^(87)Sr/^(86)Sr ratios of some samples being high.The δ^(37)Cl value compositions range from−0.38‰to 0.83‰,which is consistent with the δ^(37)Cl value composition of the world marine halite(−0.6‰to 0.4‰),further confirming that seawater is the main origin.In addition,the high δ^(37)Cl value of some samples at the boundary of the upper and lower evaporite layers might be related to the influence of δ^(37)Cl-rich brine and the incomplete dissolution of the halite. | DU Shaorong ZHENG Mianping LÜYuanyuan ZHANG Yongsheng ZHANG Xuefei MIAO Zhongying LI Mingming | 2022 | Acta Geologica Sinica(English Edition)2022,96,6: | 0 |