河南大章—德亭金矿区土壤地球化学特征及异常评价

通过分析大章一德亭金矿区龙潭沟矿段1:10000土壤地球化学测量Au、Ag、W、Mo、Cu、Pb、Zn、As、Sb、Bi、Hg元素原始数据统计特征,确定各元素背景值和异常下限,依据异常下限值的1倍、2倍、4倍绘制各元素异常图并对其总结分析;同时利用Excel、SPSS软件对数据进行相关分析、聚类分析以及因子分析,得出Cu、Pb、Zn为主成矿元素的找矿指示元素,结合矿区地质特征全区共圈定'3处综合异常区,对类似矿床的勘查工作具有一定借鉴意义。     

西天山夏特乡南部一带地球化学、空间分布及元素组合特征

对区内元素在各地质体的分配与分布特征进行了初步归纳总结,区内15种元素全域分布水平中Au、Pb、Cr、Ni、Mo、As高于西天山背景值,Ag、Cu、Zn、Sb、Hg、W、Sn、Bi、Mn低于西天山背景值。其空间分布特征中,与区内深大断裂构造、地层、岩浆均有不同程度的关联。     

青海五龙沟矿集区典型金矿床深部盲矿预测构造叠加晕模型

五龙沟地区是青海省昆中构造成矿带的重要组成部分,该区金矿床严格受构造带控制,为典型蚀变岩型金矿床。区内典型金矿床地球化学和构造叠加晕特征研究表明:矿床具有Au、Ag、Cu、Pb、Zn、As、Sb、Bi、Hg、W、Mo、B、Co、Ni、V等多元素组合特点,主要金矿体赋矿构造带原生晕轴向分带规律表现为金矿体前缘指示元素为As、Sb、Hg、B,近矿指示元素为Au、Ag、Cu、Pb、Zn,尾晕指示元素为Bi、Mo、Mn、Co。在总结构造叠加晕预测标志基础上,建立了盲矿预测的构造叠加晕模型,通过赋矿构造带构造叠加晕特征研究,进一步圈定了深部找矿靶位。     

内蒙古甲乌拉铅锌银矿床构造地球化学研究与找矿预测

内蒙古甲乌拉铅锌银矿床是大型火山-次火山热液脉状铅锌银金属矿床,经多年的开采,矿山面临着深部找矿问题。本次研究通过对2号矿体、3号矿体、2-44号矿体构造地球化学研究,建立了各矿体银铅锌矿化元素组合特征及不同成矿阶段矿体元素组合特征。研究认为甲乌拉矿床成矿期分为3个阶段,其第一阶段元素组合为As、Sb、Pb、Zn、Ag、Cu、Cd;第二阶段为As、Sb、Pb、Zn、Ag、Cu、Au、Ga、Cd;第三阶为Pb、Ag、Cd。成矿元素水平分带及垂直分带特征表明热液的来源可能为构造的南西深部,在此基础上,建立矿区近矿晕(Pb、Zn、Cu、Ag)、前晕(As、Sb、Hg、B)、尾晕(Bi、Mo、Mn、Co、Ni)的构造地球化学找矿标志,在2号矿体深部圈定找矿靶区3处,为深部探矿工程部署提供依据,实现甲乌拉铅锌银矿找矿新突破。     

河南郭家岭金矿原生晕特征及深部找矿预测

河南郭家岭金矿床位于华北陆块南缘褶皱带多金属成矿带与北秦岭多金属成矿带交界处。文章结合矿区地质背景、矿床成因、矿体特征及钻孔岩石地球化学采样分析,系统地研究了矿床深部的原生晕地球化学特征。地球化学原生晕统计分析表明,郭家岭金矿区矿化普遍高于区域背景值,Au、Ag、Cu、Mo、Sn、W、Zn、Sb、Bi 9种元素的富集系数较大。通过R型聚类分析,表明钻孔内元素间相关性较好,与Au相关性最强的元素为Bi,并且As、Sb、Zn元素组合异常强烈,而W、Mo元素组合异常较弱,表明该金矿床属于高温热液矿床,处在原生晕的前缘;从钻孔原生晕空间分布看,原生晕异常现象明显,矿化较好,与Ag、Cu、Pb元素有较强的相关性,表明该金矿床处在异常前缘或者异常中上部。     

四川子杠坪铅锌矿床原生晕地球化学特征及深部找矿预测

四川子杠坪铅锌矿床位于松潘～甘孜地槽褶皱系的东南缘,处于滴痴山背斜的西翼。矿区发现了一条铅锌矿体,赋存于二叠系下统甲黄沟群片岩地层的层间断裂带中,呈似层状产出,具显著的层控特征,成因类型为沉积变质叠加热液改造型。对I号矿体6个中段的56件矿样的副样分析,通过数理统计分析、分带序列研究、建立矿体深部预测模型等方法,系统研究了矿体原生晕地球化学特征。研究表明成矿主要指示元素为Pb、Zn、Cu、Co、Ag、Sb、Hg,次要指示元素为Au、As、Mo、Ni、Bi、W、Sn。原生晕分布特征显示了单一期次成矿作用前缘晕指示元素为As、Sb、Hg,近矿晕指示元素为Pb、Zn、Ag、Bi、Co,矿体下部及尾晕元素为Au、W、Mo、Cu。矿体原生晕综合轴向分带序列为:As―Sb―Ni―Bi―Ag―Ba―Zn―Sr―Mo―Au―W―Co―Pb―Sn―Cu―Hg,出现反分带现象。地球化学参数评价指标变化趋势为由大到小再变大,叠加作用明显,前缘晕元素Ag、Sb、Hg的含量在最下部中段有增大趋势,推测矿体向下延伸很可能再次富集膨大,膨大部位较远。建立了矿体深部预测模型,结合成矿指示元素浓度分布情况,预测了矿体在深部呈囊状展布,在P08-P16勘查线向下可能再次膨大,往东西两端则有逐渐尖灭趋势。     

新疆红石铜矿区原生晕地球化学特征

红石铜矿是位于卡拉塔格铜金成矿带上典型的矿床。文章通过原生晕元素异常特征、元素组合特征、垂向元素分带特征的研究,揭示了红石矿区各矿体Cu、Pb、Zn、As、Sb、Bi、Hg、、Ag、Mo、Au等10种元素垂向分带的规律,并利用该规律推断出了矿体的侧伏方向,对深部找矿提出了建议。     

山东诸城地区水系沉积物地球化学特征及铜多金属找矿方向

山东诸城地区1∶5万水系沉积物测量共采集样品1553件,该文通过分析Au、Ag、As、B、Bi、Cu、F、Hg、Mo、Pb、Sb、Sn、W、Zn14种元素,研究了各元素地球化学参数特征,总结了元素分布规律,结合工作区成矿地质条件,圈定单元素异常395个,综合异常16个。通过综合异常查证,新发现多处铜、铅矿(化)点和矿化线索。依据成矿地质背景、地球化学成矿条件,进一步划分出4个地球化学找矿远景区,为该区下一步找矿工作指明了方向。     

土壤地球化学测量在内蒙古毛盖吐地区锡多金属找矿中的应用

内蒙古毛盖吐锡铅锌矿位于黄岗梁-甘珠尔庙锡铜铅锌银多金属成矿带的中南段,属于半干旱草原荒漠景观区。该文通过1∶10000土壤地球化学测量,运用元素异常组合和元素分异富集规律等分析方法,发现矿区内Sn、Cu、Pb、Bi、Mo、Zn、W等元素异常发育,并圈定8处综合异常,明确Sn、Cu、Pb、Bi、Mo、Zn、W为毛盖吐地区主成矿元素。结合研究区构造分析,发现北东向构造对元素富集成矿有明显的控制作用。本次研究结果表明土壤地球化学测量在该半干旱景观地区对揭示元素异常及找矿工作具有实用性及可靠性。     

黑龙江三道湾子金矿床构造叠加晕模式及找矿靶区预测

通过对三道湾子金矿床构造叠加晕研究,表明Au是形成金矿体的最直接、最重要的指示元素,Ag是重要伴生元素。As、Sb、Hg是金矿的前缘晕特征指示元素。Cu、Pb、Zn强异常反映Ⅱ阶段叠加,可能形成富矿体。Bi、Mo、Mn、Co是尾晕指示元素。经计算分带序列,发现Sb、As、Hg前缘晕元素出现在分带序列的下部,出现反分带,反映了矿化叠加。建立矿床构造叠加晕模式,并成功预测深部盲矿靶位。     

径欲曲、桥欲危、亭欲朴——谈园林中的径、桥、亭

《建筑学报》1981年12期刊载赵一鹤同志《略谈园林中的路、桥、亭》一文，对园林中路、桥、亭意境设计的论述，读后很有感触。但文中将《清闲供》中的“径欲曲、桥欲危、亭欲朴”，误引为“路欲曲、桥欲断、亭欲危”，通过论析，证明中国传统艺术特点之一是含蓄，山水园林艺术强调意境，注重诗情画意，追求“永恒的美和自然”。“径欲曲，桥欲危，亭欲朴”的思想，正是“山水诗”中的和谐旋律。     

辰山植物园矿坑花园,上海,中国

<正>景观设计:清华大学建筑学院景观学系/北京清华同衡规划设计研究院有限公司Landscape Design:Department of Landscape Architecture at the School of Architecture,Tsinghua University/Beijing Tsinghua Tongheng Urban Planning and Design Institute Ltd.辰山采石坑属人工采矿遗迹,山体被挖出东西两个"眼睛",表面风化严重,部分区域有明显皴纹。平台为采石留下的断面,北部剔出一层台地,其边缘有数层挡墙以防止滑坡。深潭高差约30m,潭水     

Total arsenic, lead, cadmium, copper, and zinc in some salt rivers in the northern Andes of Antofagasta, Chile

Lake Velenje is located in one of the most polluted regions in Slovenia, the Salek Valley. The major source of pollution in the valley is the coal-fired thermal power plant in Sostanj (STPP, capacity 775 MW). It has five separate units. All units have electrostatic precipitators for fly ash removal. Unit 4 also has installed a wet flue gas desulfurisation system (FGD system). Total mercury (THg) concentrations were measured in lignite, slag and ash samples from the STPP. In flue gas, different mercury species (THg, MeHg, Hg2+, Hg0) were determined separately for unit 4 and unit 5 which use different flue gas cleaning technology. Mercury and methyl mercury (MeHg) concentrations were also measured in lake water at different depths, in inflow water, outflow water, rain, snow and lake sediments in order to establish the influence of the power plant on the lake. Most mercury emitted from the power plant is in the elemental form. The ratio between oxidised and elemental Hg depends on the flue gas cleaning technology. Mass balance calculations have been performed for the STPP. The results show that the major sources of mercury in Lake Velenje are wet deposition and lake inflows. Total and MeHg concentrations in the water column are very low and can be compared to other non-contaminated freshwater lakes in the world.     

Determination of Co,Cu, Fe,Hg, Mn,Sb, Se and Zn in milk samples

Concentrations of Co, Cu, Fe, Hg, Mn, Sb, Se and Zn in IAEA milk (dry) standard A-11 were re-evaluated with the help of instrumental and radiochemical neutron activation analysis (NAA). The results show reasonably good agreement for Co (5.1 ± 0.55 ng/g) and Zn (34 ± 2.5 μg/g), in relation to the recommended values. For Cu (374 ± 15 ng/g), Fe (2.4 ± 0.34 μg/g) and Mn (250 ± 20 ng/g); the results obtained are lower than the reported values.Cu, Mn, and Zn were cross-checked by atomic absorption spectrophotometry (AAS). The results, Cu = 331 ± 27 ng/g, Mn = 302 ± 62 ng/g, and Zn = 35 ± 1 μg/g, fall within the range of mean values obtained by NAA.For Hg and Se, using instrumental NAA, only upper limits could be indicated; because of the low levels of concentrations of Hg and Se on one hand, and high content of P (9100 μg/g) in A-11 milk standard on the other, NAA coupled with radiochemistry is to be preferred for these two elements.In pooled human milk, in addition to Cu and Mn (radiochemical) and Co, Fe, Sb and Zn (instrumental), Hg and Se could also be determined non-destructively because of the favourable Hg/P and Se/P ratios in this matrix.     

沈阳住宅区,沈阳,中国

该项目用地73 350m^2，目前正处于施工阶段，46座6层住宅楼（664户）和7座11层塔楼（308户）共可容纳992户居民。     

Pollution of montane soil with Cu, Zn, As, Sb, Pb, and nitrate in Kanto, Japan

Soil cores and rainwater were sampled under canopies of Cryptomeria japonica in four montane areas along an atmospheric depositional gradient in Kanto, Japan. Soil cores (30 cm in depth) were divided into 2-cm or 4-cm segments for analysis. Vertical distributions of elemental enrichment ratios in soils were calculated as follows: (X/Al)_i/(X/Al)_BG (where the numerator and denominator are concentration ratios of element-X and Al in the i- and bottom segments of soil cores, respectively). The upper 14-cm soil layer showed higher levels of Cu, Zn, As, Sb, and Pb than the lower (14-30 cm) soil layer. In the four areas, the average enrichment ratios in the upper 6-cm soil layer were as follows: Pb (4.93) ≥ Sb (4.06) ≥ As (3.04) > Zn (1.71) ≥ Cu (1.56). Exogenous elements (kg/ha) accumulated in the upper 14-cm soil layer were as follows: Zn (26.0) > Pb (12.4) > Cu (4.48) ≥ As (3.43) ≥ Sb (0.49). These rank orders were consistent with those of elements in anthropogenic aerosols and polluted (roadside) air, respectively, indicating that air pollutants probably caused enrichment of these elements in the soil surface layer. Approximately half of the total concentrations of As, Sb, and Pb in the upper 14-cm soil layer were derived from exogenous (anthropogenic) sources. Sb showed the highest enrichment factor in anthropogenic aerosols, and shows similar deposition behavior to NO₃⁻, which is a typical acidic air pollutant. There was a strong correlation between Sb and NO₃⁻ concentrations in rainfall (e.g., in the throughfall under C. japonica: [NO₃⁻] = 21.1 [dissolved Sb], r = 0.938, p < 0.0001, n = 182). Using this correlation, total (cumulative) inputs of NO₃⁻ were estimated from the accumulated amounts of exogenous Sb in soils, i.e., 16.7 t/ha at Mt. Kinsyo (most polluted), 8.6 t/ha at Mt. Tsukuba (moderately polluted), and 5.8 t/ha at the Taga mountain system (least polluted). There are no visible ecological effects of these accumulated elements in the Kanto region at present. However, the concentrations of some elements are within a harmful range, according to the Ecological Soil Screening Levels determined by the U.S. Environmental Protection Agency.     

Mercury in ground water, septage, leach-field effluent, and soils in residential areas, New Jersey coastal plain

Water samples were collected from domestic wells at an unsewered residential area in Gloucester County, New Jersey where mercury (Hg) concentrations in well water were known to exceed the USEPA maximum contaminant level (MCL) of 2,000 ng/L. This residential area (the CSL site) is representative of more than 70 such areas in southern New Jersey where about 600 domestic wells, sampled previously by State and county agencies, yielded water containing Hg at concentrations that exceed the MCL. Recent studies indicate that background concentrations of Hg in water from this unconfined sand and gravel aquifer system are <10 ng/L. Additional sampling was conducted at the CSL site in order to better understand sources of Hg and potential Hg transport mechanisms in the areas with Hg-contaminated ground water. At the CSL site, concentrations of Hg were substantially lower (although still exceeding the MCL in some cases) in filtered water samples than in the unfiltered water samples collected previously from the same wells. Surfactants and elevated concentrations of sodium, chloride, nitrate, ammonium, and phosphate in water from domestic and observation wells indicated septic-system effects on water quality; detections of sulfide indicated localized reducing conditions. Hg concentrations in septage and leach-field effluent sampled at several other households in the region were low relative to the contaminant-level Hg concentrations in water from domestic wells. Relations of Hg concentrations in leach-field effluent to iron concentrations indicate that reductive dissolution of iron hydroxides in soils may release Hg to the percolating effluent.     

浙江金华八咏大厦

该项目位于浙江省金华市经济开发区,是浙江八咏公路工程有限公司的办公楼和酒店楼。由于位于经济开发区的入口,委托方提出要使这个项目成为标志性的建筑。预计到周边是一组皇冠式的圆顶建筑,我们设计两个简约到极致的体块。     

Chromium, nickel, copper, zinc, arsenic, selenium, cadmium, mercury and lead in Dutch fishery products 1977-1984

Within the framework of a monitoring programme, carried out by order of the Dutch Ministry of Agriculture and Fisheries, fishery products from Dutch coastal waters, estuaries and inland waters were investigated for the presence of trace elements. In this report the results for the period 1977-1984 are presented. The investigated fishery products included sole, cod, plaice, herring, eel, pike-perch, shrimp and mussel, in which the elements chromium, nickel, copper, zinc, arsenic, selenium, cadmium, mercury and lead were determined. The results are compared with data from the literature and with the trace element levels usually found in other animal products. The daily intake of trace elements in The Netherlands through the consumption of Dutch fishery products is calculated.     

太庙茶室,北京,中国

<正>太庙茶室位于紫禁城东南角的劳动人民文化宫内,这里曾是明清两代皇帝祭祖的地方。墙内原是皇家的圣地,墙外则是北京古城的基本背景肌理——老百姓居住的胡同。不知从哪个年代开始,这段东围墙截止到了这里,在墙东外侧的地下排水涵沟上盖起了泵房、库房和临时宿舍,遮蔽住了这段宫墙的末端,墙内也成了劳动人民自由出入休闲