|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Environmental mechanism of magnetic susceptibility changes of lacustrine sediments from Lake Hulun, China显示文摘The changes of magnetic susceptibility (κ) are correlated with those of corresponding sedimentological, geochemical, mineralogical and biological results, which verifies that κ can be taken as one of the environmental proxies. However, usually the exact origin of magnetic signal is poorly understood, and is difficult to relate with the environmental evolution. Magnetic properties of material derived from the catchment and sedimentary environment may affect the accumulation, preservation, or authigenesis and diagenesis of magnetic minerals. In the Lake Hulun region in Inner Mongolia, it is found that muddy sediments, deposited during high water level period (corresponding to humid climate), have comparatively high κ values. In contrast, the sandy sediments, deposited during low water level period (corresponding to arid climate), have low κ values. Detailed rock magnetic investigation confirms that detrital magnetite derived from volcanic rocks in the catchment exists in both muddy and sandy | 胡守云 王苏民 Erwin Appel 吉磊 | 2000 | Science China Earth Sciences2000，43，5： | 16 |
| 2 | 临汾市树叶磁性的时空变化特征及其对大气重金属污染的指示显示文摘粉煤灰经工厂废气排放进入大气,对人类健康和生态系统都造成了无法弥补的破坏.本文选取具有高空间分辨率优势的树叶作为收集粉煤灰的载体,对临汾市大气中可吸入颗粒物进行磁学参数和重金属含量监测.结果表明,磁化率最大值出现在工厂污染源附近,磁化率空间分布呈现随污染源距离增加而降低的趋势.工业区收集到的磁性颗粒以低矫顽力、粗粒度的磁铁矿为主.夏季磁性矿物来源单一,主要为人为影响.冬季大气中悬浮的磁性颗粒有部分来自于西北风/北风的自然尘降.同一采样点磁化率随时间变化特征表明,树叶的磁学性质可以灵敏和有效地反映较短时期内大气污染的现状.统计分析表明磁化率和重金属元素(铁,铬,镍,铜,铅,钴)之间存在显著相关性.污染负荷指数用于评估研究区域内重金属各元素综合污染的程度.结果显示,在废弃的旧工业区附近无大气污染指示,但在运营中的工厂集中的地区,大气均受到严重污染.污染负荷指数与表征磁性矿物含量的磁化率呈相关性(r2=0.66),因此树叶的磁性参数可以作为大气重金属污染的替代指标. | 曹丽婉 胡守云 Appel Erwin 师尚礼 尹刚 | 2016 | 地球物理学报2016，59，5： | 12 |
| 3 | 南海南部YSJD-86GC孔沉积物磁性特征及其环境意义显示文摘选取位于南海南部的YSJD-86GC(简称86GC)孔沉积物柱状样进行环境磁学研究,结合已发表的年代框架,揭示MIS3阶段以来沉积物的磁学变化特征.岩石磁学结果表明钻孔沉积物以低矫顽力的磁铁矿类矿物为主要携磁矿物,同时存在部分赤铁矿.反映磁性颗粒大小的King图和Day图表明沉积物中磁性矿物以细粒伪单畴为主.磁学参数与地球化学指标剖面变化的对比分析表明86GC孔沉积物磁性特征反映的是陆源物质的信息;研究钻孔沉积物的磁学性质同时受陆源物质输入量、物源区的氧化-还原条件及搬运环境和距离等多种因素共同影响.全球气候变化引起的海平面升降是导致研究钻孔沉积物中磁性矿物含量和磁性颗粒大小变化的主要原因,沉积物磁学性质的变化可间接指示本地区的海平面升降. | 欧阳婷萍 田成静 朱照宇 邱燕 APPEL Erwin 付淑清 | 2014 | 科学通报2014，59，19： | 6 |
| 4 | Magnetic Properties of Tree Leaves and Their Significance in Atmospheric Particle Pollution in Linfen City,China显示文摘Fifty-one tree leaves were sampled in the industrial area,residential area,and Fenhe River ecological zone,for the purpose of a magnetic study on atmospheric pollution in Linfen City,Shanxi Province,China.Measurements of mass-specific magnetic susceptibility(χ) show a significant variation range(from 11.6 × 10-8 m3/kg to 129.7 × 10-8 m3/kg).Overall values of magnetic susceptibility decline in the following sequence:industrial area > residential area > Fenhe River ecological zone.The relatively elevated concentration-related magnetic parameters(saturation isothermal remanent magnetization,anhysteretic remanent magnetization and magnetic susceptibility) appear in the industrial area,with their highest values in the vicinity of Linfen Steel Mill.Magnetic particles are dominated by multidomain,magnetite-like minerals.Magnetic particle concentration and grain size both decrease with the increasing distance from industrial area,indicating the industrial area,especially Linfen Steel Mill,is the main source of atmospheric particle pollution.Residential area and Fenhe River ecological zone are also affected by industrial emission to a certain extent.The results of this study indicate that magnetic measurements of tree leaves are practicable for monitoring and determination of atmospheric pollution in Linfen City. | YIN Gang HU Shouyun CAO Liwan Wolfgang ROESLER Erwin APPEL | 2013 | Chinese Geographical Science2013，23，1： | 6 |
| 5 | Magnetic characteristics and its environmental implications of core YSJD-86GC sediments from the southern South China Sea显示文摘Sediments of core YSJD-86GC(referred to as86GC)collected from the southern South China Sea were selected for environmental magnetic studies.Combined with the published chronological framework,sediment magnetic properties were revealed for the study area since the MIS3 stage.The rock magnetic results indicate that low-coercivity magnetite is the main magnetic mineral within the sediments.Also,a certain amounts of hematite are present.The King plot and Day plot,which reflect the magnetic particle size,show that fine-grained pseudo-single-domain phase magnetic particles dominate the magnetic minerals in the sediments.Comparison of magnetic parameters and geochemical indicators show that magnetic properties of core 86GC sediments reflect a terrigenous input.Simultaneously,magnetic characteristics of the studied sediment are influenced by the quantity of terrigenous sediment input,oxidation-reduction conditions of the provenance area,and the transportation environment and distance.Sea level fluctuation caused by global climate change was the main factor for variation in concentration of magnetic minerals and magnetic particle size of thestudied core sediments.Thus,variation of sediment magnetic properties in the study area can be used as an indirect indicator of sea level fluctuation. | Tingping Ouyang Chengjing Tian Zhaoyu Zhu Yan Qiu Erwin Appel Shuqing Fu | 2014 | Chinese Science Bulletin2014，59，25： | 3 |
| 6 | Late Pliocene–Quaternary evolution of redox conditions in the western Qaidam paleolake (NE Tibetan Plateau) deduced from Mn geochemistry in the drilling core SG-1显示文摘 | Yibo Yang Xiaomin Fang Erwin Appel Albert Galy Minghui Li Weilin Zhang | 2013 | Quaternary Research2013，，3： | 2 |
| 7 | Environmental implications of the magnetic record in Pleistocene lacustrine sediments of the Qaidam Basin, NE Tibetan Plateau显示文摘 | Christian Herb Weilin Zhang Andreas Koutsodendris Erwin Appel Xiaomin Fang J?rg Pross | 2013 | Quaternary International2013，，： | 2 |
| 8 | Quaternary paleolake nutrient evolution and climatic change in the western Qaidam Basin deduced from phosphorus geochemistry record of deep drilling core SG-1显示文摘 | Yibo Yang Xiaomin Fang Albert Galy Erwin Appel Minghui Li | 2013 | Quaternary International2013，，： | 2 |
| 9 | Paleoclimatic implications of magnetic susceptibility in Late PlioceneQuaternary sediments from deep drilling core SG-1 in the western Qaidam Basin (NE Tibetan Plateau)显示文摘 | Zhang Weilin Appel Erwin Fang Xiaomin Yan Maodu Song Chunhui Cao Liwan | 2012 | EN2012，，6： | 2 |
| 10 | Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal显示文摘 | Pitambar Gautam Ulrich Blaha Erwin Appel | 2005 | Atmospheric Environment2005，，12： | 1 |
| 11 | Wind erosion on the north‐eastern Tibetan Plateau: constraints from OSL and U‐Th dating of playa salt crust in the Qaidam Basin显示文摘 | Wenxia Han Zhibang Ma Zhongping Lai Erwin Appel Xiaomin Fang Lupeng Yu | 2014 | Earth Surf Process Landforms2014，，6： | 1 |
| 12 | Pliocene–Pleistocene stepwise drying of Central Asia: Evidence from paleomagnetism and sporopollen record of the deep borehole SG-3 in the western Qaidam Basin, NE Tibetan Plateau显示文摘 | Maotang Cai Xiaomin Fang Fuli Wu Yunfa Miao Erwin Appel | 2012 | Global and Planetary Change2012，，： | 1 |
| 13 | Magnetostratigraphy of deep drilling core SG-1 in the western Qaidam Basin (NE Tibetan Plateau) and its tectonic implications显示文摘 | Weilin Zhang Erwin Appel Xiaomin Fang Chunhui Song Olaf Cirpka | 2012 | Quaternary Research2012，，1： | 1 |
| 14 | Environmental magnetic approach towards the quantification of pollution in Kathmandu urban area, Nepal 显示文摘 | Pitambar Gautam Ulrich Blaha Erwin Appel | 2004 | Physics and Chemistry of the Earth2004，29，： | 1 |
| 15 | Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal显示文摘 | Pitambar Gautam Ulrich Blaha Erwin Appel | 2005 | Atmospheric Environment2005，，12： | 1 |
| 16 | Magnetic properties of road dust from Visakhapatnam (India)--relationship to industrial pollution and road traffic显示文摘 | Srinivasa Rao Goddu Erwin Appel Diana Jordanova Florian Wehland | 2004 | Physics and Chemistry of the Earth2004，29，： | 1 |
| 17 | Environmental magnetic approach towards the quantification of pollution in Kathmandu urban area, Nepal显示文摘 | Gautam Pitambar Blaha Ulrich Appel Erwin | 2004 | Physics and Chemistry of the Earth2004，29，： | 1 |
| 18 | Improved Crosshole Radar Tomography by Using Direct and Reflected Arrival Times显示文摘 | JENS TRONICKE DARYL R TWEETON PETER DIETRICH ERWIN APPEL | 2001 | Journal of Applied Geophysics2001，47，2： | 1 |
| 19 | Late Holocene Moisture Changes in the Core Area of Arid Central Asia Reflected by Rock Magnetic Records of Glacier Lake Kalakuli Sediments in the Westernmost Tibetan Plateau and their Influences on the Evolution of Ancient Silk Road显示文摘The evolution of Ancient Silk Road(ASR) was deeply influenced by late Holocene moisture changes in Arid Central Asia(ACA). Nevertheless, controversies in Holocene moisture change pattern of ACA and poorly–constrained age models of related studies have made the discussion about late Holocene moisture changes in ACA and their influences on the evolution of ASR difficult. Recently, a high–resolution age model during the late Holocene was established for Kalakuli Lake, a small glacier lake located in the core area of ACA. A thorough rock magnetic investigation was carried out on Kalakuli Lake sediments based on this age model. The magnetic mineral assemblage of Kalakuli Lake sediments is still dominated by primary magnetite despite minor diagenetic effects. Comparisons of rock magnetic records to parameters previously used as indicator of glacier fluctuations suggest that clastic input to Kalakuli Lake was high(low) and magnetic grain size is relatively larger(smaller), when glaciers on Muztagh Ata advanced(retreated). The ARM/SIRM ratio, a magnetic grain size proxy, is directly related to lake hydrodynamics, which are ultimately controlled by glacier fluctuations on Muztagh Ata as the result of regional moisture changes. Late Holocene moisture changes indicated by the ARM/SIRM ratio are consistent with cool/wet and warm/dry oscillations indicated by the unweighted average of biomarker hydrogen isotopic data of the C26 and C28 n–alkanoic acids in a previous study about Kalakuli Lake, most moisture change records of the core area of ACA and winter insolation of the Northern Hemisphere, but opposite to Asian monsoon evolution. Given Asian monsoon and the westerlies are mutually inhibited, we propose that late Holocene moisture changes in the core area of ACA were controlled by the intensity of Asian monsoon versus the westerlies under the governance of solar insolation. Generally increased moisture since the late Holocene indicated by the ARM/SIRM ratio favored cultural exchange and integration between the western and the eastern Eurasia, which paved the way for the formation of ASR. Coincidence between significant increase in moisture at ~200 BC suggested by the ARM/SIRM ratio and the formation of ASR indicates moisture as an important factor that facilitated the formation of ASR. The onsets of three prosperity periods of ASR in the history generally correspond to periods when moisture was relatively high, nevertheless, stagnant periods of ASR do not coincide with periods when moisture was relatively low in the core area of ACA. Disorganized correlations between stagnant periods of ASR and moisture changes in the core area of ACA suggest that moisture is not the decisive factor influencing the evolution of ASR. | WU Xudong LIU Xingqi Erwin APPEL | 2020 | Acta Geologica Sinica(English Edition)2020，94，3： | 0 |
| 20 | Uranium distribution in the lacustrine calcareous clastic-evaporite sequence in the western Qaidam Basin,and implications for U behavior in concentration of closed water显示文摘Uranium(U)provides especially useful information for reconstructing paleoredox conditions due to its unique geochemical properties and behavior in supergene environments.The proxy potential under | YANG Yibo FANG Xiaomin LI Minghui APPEL Erwin ZHANG Weilin LIU Xiaoming | 2014 | Acta Geologica Sinica(English Edition)2014，88，S1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员