THE CYCLE OF HOLOCENE CLIMATIC AND ENVIRONMENT-GEOLOGICAL CHANGES IN CHINA

ＴＨＥＣＹＣＬＥＯＦＨＯＬＯＣＥＮＥＣＬＩＭＡＴＩＣＡＮＤＥＮＶＩＲＯＮＭＥＮＴＧＥＯＬＯＧＩＣＡＬＣＨＡＮＧＥＳＩＮＣＨＩＮＡＢｉＦｕｚｈｉａｎｄＹｕａｎＹｏｕｓｈｅｎＩｎｓｔｉｔｕｔｅｏｆＣｒｕｓｔａｌＤｙｎａｍｉｃｓ,ＳｔａｔｅＳｅｉｓｍｏｌ...     

AEOLIAN GEOMORPHICAL TYPES IN THE COASTAL AREAS OF THE BOHAI AND YELLOW SEAS AND THEIR EVOLUTION MODELS

ＡＥＯＬＩＡＮＧＥＯＭＯＲＰＨＩＣＡＬＴＹＰＥＳＩＮＴＨＥＣＯＡＳＴＡＬＡＲＥＡＳＯＦＴＨＥＢＯＨＡＩＡＮＤＹＥＬＬＯＷＳＥＡＳＡＮＤＴＨＥＩＲＥＶＯＬＵＴＩＯＮＭＯＤＥＬＳＦｕＭｉｎｇｚｕｏ，ＸｕＸｉａｏｓｈｉａｎｄＸｕＸｉａｏｗｅｉＦｉｒｓｔＩｎ...     

PROVENANCE ANALYSES OF LATE PALEOZOIC CLASTICS IN THE KAMUSTE AREA, THE JUAGGUR BASIN, XINJIANG

ＰＲＯＶＥＮＡＮＣＥＡＮＡＬＹＳＥＳＯＦＬＡＴＥＰＡＬＥＯＺＯＩＣＣＬＡＳＴＩＣＳＩＮＴＨＥＫＡＭＵＳＴＥＡＲＥＡ,ＴＨＥＪＵＡＧＧＵＲＢＡＳＩＮ,ＸＩＮＪＩＡＮＧＺｈａｎｇＸｉａｏｈｕｉＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ,ＣｈｉｎｅｓｅＡｃａｄｅ...     

TECTONIC EVOLUTION AND INVERSION OF TURPAN-HAMI BASIN,NORTHWESTERN CHINA

ＴＥＣＴＯＮＩＣＥＶＯＬＵＴＩＯＮＡＮＤＩＮＶＥＲＳＩＯＮＯＦＴＵＲＰＡＮＨＡＭＩＢＡＳＩＮ，ＮＯＲＴＨＷＥＳＴＥＲＮＣＨＩＮＡＣａｏＤａｉｙｏｎｇ，ＺｈａｎｇＰｅｎｇｆｅｉ，ＪｉｎＫｕｉｌｉａｎｄＱｉａｎＧｕａｎｇｍｏＢｅｉｊｉｎｇＧｒａｄｕａｔ...     

TIDAL FLAT STORM DEPOSITS OF MIDDLE CAMBRIAN IN SHIMEN DISTRICT,HUNAN PROVINCE

ＴＩＤＡＬＦＬＡＴＳＴＯＲＭＤＥＰＯＳＩＴＳＯＦＭＩＤＤＬＥＣＡＭＢＲＩＮＩＮＳＨＩＭＥＮＤＩＳＴＲＩＣＴ，ＨＵＮＡＮＰＲＯＶＩＮＣＥTXＴＩＤＡＬＦＬＡＴＳＴＯＲＭＤＥＰＯＳＩＴＳＯＦＭＩＤＤＬＥＣＡＭＢＲＩＡＮＩＮＳＨＩＭＥＮＤＩＳＴＲＩＣＴ，ＨＵ...     

MIXED SILICICLASTIC-CARBONATE SEDIMENTATIONS DURING THE EARLY-MIDDLE CAMBRIAN IN THE NORTH CHINA PLATFORM : A EXAMPLE FROM ZHANGXIA,SHANDONG,CHINA

ＭＩＸＥＤＳＩＬＩＣＩＣＬＡＳＴＩＣＣＡＲＢＯＮＡＴＥＳＥＤＩＭＥＮＴＡＴＩＯＮＳＤＵＲＩＮＧＴＨＥＥＡＲＬＹＭＩＤＤＬＥＣＡＭＢＲＩＡＮＩＮＴＨＥＮＯＲＴＨＣＨＩＮＡＰＬＡＴＦＯＲＭ：ＡＥＸＡＭＰＬＥＦＲＯＭＺＨＡＮＧＸＩＡ，ＳＨＡＮＤＯＮＧ，...     

PROGRESS IN THE DEVELOPMENT OF A HIGH－LEVEL RADIOACTIVE WASTE REPOSITORY IN THE UNITED STATES

ＰＲＯＧＲＥＳＳＩＮＴＨＥＤＥＶＥＬＯＰＭＥＮＴＯＦＡＨＩＧＨ－ＬＥＶＥＬＲＡＤＩＯＡＣＴＩＶＥＷＡＳＴＥＲＥＰＯＳＩＴＯＲＹＩＮＴＨＥＵＮＩＴＥＤＳＴＡＴＥＳ￥／／（美）ＰａｕｌＡ．Ｗｉｔｈｅｒｓｐｏｏｎ（ＬａｗｒｅｎｃｅＢｅｒｋｅｌｅｙＮａｔｉｏ...     

MICROSTRUCTURAL FEATURES OF DUCTILE SHEAR ZONE ON THE NORTHERN MARGIN OF HOHXIL,QING-HAI PROVINCE,CHINA

ＭＩＣＲＯＳＴＲＵＣＴＵＲＡＬＦＥＡＴＵＲＥＳＯＦＤＵＣＴＩＬＥＳＨＥＡＺＯＮＥＯＮＴＨＥＮＯＲＴＨＥＲＮＭＡＲＧＩＮＯＦＨＯＨＸＩＬ，ＱＩＮＧ－ＨＡＩＰＲＯＶＩＮＣＥ，ＣＨＩＮＡTXＭＩＣＲＯＳＴＲＵＣＴＵＲＡＬＦＥＡＴＵＲＥＳＯＦＤＵＣＴＩＬＥＳＨ...     

非饱和土壤中甲苯与三氯乙烯迁移过程和生物降解作用的耦合模拟

三氯乙烯是常见的地下水污染物,通常对需氧生物降解具有抵制作用,在另一种化合物的存在下,可能与之发生共同新陈代谢。利用实验室土柱对ＴＣＥ和甲苯的耦合迁移和生物降解作用进行研究和建模。根据Ｍｏｎｏｄ动力学原理,建立甲苯的生物降解与微生物生长的关系;根据Ｍｉｃｈａｅｌｉｓ－Ｍｅｎｔｅｎ动力学原理,描述ＴＣＥ的生物降解,并予以修正,以解释酶水平的变化。ＴＣＥ的生物降解模拟为甲苯降解速率的质量分数。生长和衰     

RARE EARTH ELEMENT GEOCHEMISTRY OF CAMBRIAN-SINIAN BEDDED CHERTS FROM XIANGCHUAN DISTRICT OF CHINA AND THEIR ORIGINS

ＲＡＲＥＥＡＲＴＨＥＬＥＭＥＮＴＧＥＯＣＨＥＭＩＳＴＲＹＯＦＣＡＭＢＲＩＡＮＳＩＮＩＡＮＢＥＤＤＥＤＣＨＥＲＴＳＦＲＯＭＸＩＡＮＧＣＨＵＡＮＤＩＳＴＲＩＣＴＯＦＣＨＩＮＡＡＮＤＴＨＥＩＲＯＲＩＧＩＮＳＴａｎｇＳｈｉｒｏｎｇ，ＷａｎｇＤｏｎｇａｎ，Ｌ...     

Organic Contamination of Soil and Goundwater in the Piedimont Plain of the Taihang Mountains

The risk of groundwater contamination following the infiltration of waste surface water, is of great interest, particularly in areas experiencing water shortage. In this study, the distribution characteristics of contaminants along the Cihe River, in the piedimont plain of the Taihang Mountains, China, was investigated by measuring the soil and water samples. The main organic contaminants detected in different media include hydrocarbons, chlorinated hydrocarbons, polycyclic aromatic hydrocarbons, and pesticides. The main contaminants found in different media are mostly derived from the river water, which can be seen from the results of waste water from the river and groundwater, from the soil samples from different depth and distance of the profiles along the river. The distribution characteristics showed that there has been a natural attenuation of the contaminants from the river during their transportation through the soils and groundwater. The sorption of organic compounds to soil organic matter is thought to be a main mechanism of natural attenuation.     

贵阳观山湖区至白云区地下水有机污染现状与防治对策

文章按水文地质条件将全区划分为12个地下水系统,并选择43组控制性水点分丰枯两季进行有机样品采集和测试,在此基础上对研究区地下水中有机污染物的检出、超标、分布及来源均进行了分析。结果显示,参评的86组地下水样品中,有32组检出有机污染物;27种参评有机组分中,10种有机组分存在不同程度的检出,其中,三氯甲烷检出25次,检出率29.07%,其余组分检出率均低于5%;仅有1,2二氯丙烷超标1次,超标率低;区内地下水有机污染物检出浓度较低,超标率低,处于轻度污染阶段;12个系统中,有9个系统发现有机物污染物检出;检出点多分布于工矿企业的下游地段,排污河渠两侧;污染物多来源于中小型工矿企业,以污染物通过落水洞、天窗等进入含水层为主要污染途径;地下水系统排泄区的近源污染多发,危害程度大。针对上述污染特征,提出加强对中小企业污染源的集中管理,加大污水管网建设力度等对策建议。      

The influence of a heavily polluted urban river on the adjacent aquifer systems

 Ankara Creek is often subjected to overflowing of sewage caused by rainfall or direct discharge of raw sewage. Alluvial aquifers adjacent to Ankara Creek and its tributaries have considerable groundwater potential. The present status of groundwater quality is far from drinking water standards. Groundwater contamination in Ankara is suspected to be caused by Ankara Creek which is heavily polluted by raw sewage discharge, surface runoff and other common sources. In order to investigate the influence of heavily polluted Ankara Creek on the groundwater contamination in the adjacent alluvial aquifers, five sampling stations on Ankara Creek and 25 water wells were monitored during 1996. At five different sampling periods, water samples were collected from both surface water and groundwater. Chemical analyses of basic ions, pollution parameters and heavy metals in natural waters were carried out. The organic pollution prevails in Ankara Creek whereas total dissolved solids (TDS) and heavy metal concentrations are considerably low. Starting from the idea that Ankara Creek somewhat influences the groundwater quality and the contaminants in groundwater should attenuate with respect to distance, a series of water wells in a certain area, each having different distance from the creek, were examined using four pollution parameters. It is concluded that Ankara Creek barely influences the aquifer systems in connection. This is attributed to two reasons: rapid attenuation of contaminants due to dilution in groundwater and a blanket of very fine sized materials covering the bottom of Ankara Creek. Received: 28. April 1997 · Accepted: 23. February 1998     

山东博山地下水污染研究

博山是山东省中部的一个工业城市，完全依靠地下水供水。主要的供水水源为中奥统碳酸盐岩石中的裂隙－喀斯特水。城区附近的水源受到相当程度的污染，本文研究了主要的污染源及其污染途径，地下水中主要污染成分及其空间分布特征，用模糊数学方法进行地下水的水质评价，用地质统计学中的趋势面分析和Ｋｒｉｇｉｎｇ方法模拟地下水中污染组分的空间分布，用灰色系统方法和对流弥散方面的特征有限元解进行地下水污染的预测，最后提出了     

某农药化工企业密集区地下水污染评价

通过分析研究某农药化工企业密集区地下水水质及污染状况,按照国家有关标准,采用单指标评价法和内梅罗指数法对地下水的质量进行评价。评价结果显示：该区域地下水水质普遍较差,大部分为Ⅳ类及Ⅴ类水质,已不适于饮用。然后对该区域地下水污染进行评价,结果显示地下水有机和无机污染严重,并形成了以某农药化工企业为污染源并沿岩溶地下水流向的一个卤代烃类有机物污染羽,这表明造成该研究区岩溶地下水污染的主要污染源为某农药化工企业。最后根据评价结果,提出相应的控制地下水污染的建议和措施,为该地区制定地下水开发利用规划提供科学依据。     

欧美地下水有机污染调查评价进展

1999年中国地质调查局启动了第一个地下水有机污染调查项目,当时检测指标只有20个(包括11个挥发性有机污染物、8种有机氯农药和1种多环芳烃)。"十一五"的地下水有机污染调查必测项目包含了38项(挥发性指标28项、有机氯农药9项和1种多环芳烃),取得了地下水有机污染的基本资料。但从对国外文献的调研来看,地下水中有机污染的种类远远超过38种。为了更全面地掌握中国地下水的质量,有必要对不同地区或不同类型的地下水中典型的有机污染物的种类进行研究,为后续地下水有机污染调查的增项做准备。通过检索美国环保局(USEPA)、美国地质调查局(USGS)和欧盟(EU)近年来的地下水质量年度报告和相关文献,调研了地下水中典型有机污染物的类型,选出最常检出的有机污染物,形成最常检出的有机污染物的检出率排序表,列出了检出率高的前50个污染物的名单。     

Review: Micro-organic contaminants in groundwater in China

Micro-organic contaminants (MOs) in groundwater, which may have adverse effects on human health and ecosystems worldwide, are gaining increased attention in China. A great deal of research has been conducted to investigate their sources, occurrences and behavior in aquifers. This paper reviews the main sources, distribution, concentrations and behavior of a wide range of MOs in groundwater in China. These MOs include well-established persistent organic pollutants—polycyclic aromatic hydrocarbons (PAHs), hexachlorocyclohexanes (HCHs), polychlorinated biphenyls (PCBs), endocrine disrupting chemicals (poly brominated diphenyl ethers (PBDEs), phthalic acid esters (PAEs), bisphenol A (BPA)—and some contaminants of emerging concern such as pharmaceutical and personal care products (antibiotics, caffeine, shampoos) and perfluorinated compounds (PFCs). The results reveal that the main MOs in groundwater are PAHs, organochlorine pesticides (OCPs), PBDEs, PAEs, and antibiotics. Moreover, some PFCs such as perfluorobutane sulfonic acid (PFBS), perfluorobutanoic acid (PFBA) and perfluorooctanoic acid (PFOA) have only recently been observed in groundwater as emerging organic contaminants. Additionally, most MOs are distributed in populated and industrialized areas such as the southeast coast of China. Finally, industrial emissions, wastewater treatment plant effluents and agricultural wastewater are found to be dominant sources of MOs in groundwater. Based on the existing pollution levels, regulation and amelioration of MOs are warranted.     

欧美地下水有机污染调查评价进展

1999年中国地质调查局启动了第一个地下水有机污染调查项目,当时检测指标只有20个(包括11个挥发性有机污染物、8种有机氯农药和1种多环芳烃)。“十一五”的地下水有机污染调查必测项目包含了38项(挥发性指标28项、有机氯农药9项和1种多环芳烃),取得了地下水有机污染的基本资料。但从对国外文献的调研来看,地下水中有机污染的种类远远超过38种。为了更全面地掌握中国地下水的质量,有必要对不同地区或不同类型的地下水中典型的有机污染物的种类进行研究,为后续地下水有机污染调查的增项做准备。通过检索美国环保局(USEPA)、美国地质调查局(USGS)和欧盟(EU)近年来的地下水质量年度报告和相关文献,调研了地下水中典型有机污染物的类型,选出最常检出的有机污染物,形成最常检出的有机污染物的检出率排序表,列出了检出率高的前50个污染物的名单。     

桂江流域地下水污染途径及防控措施研究

对桂江流域开展岩溶地下水污染调查发现:流域内地下水污染源分为“三氮”污染源、重金属污染源、有机污染源三类;“三氮”污染源主要包括工业、养殖和生活三类污水、生活垃圾渗滤液、农业施用氮肥等;重金属污染主要来自工矿企业;有机污染来自工业、养殖业。污染途径主要有孤峰平原的分散入渗式、孤峰平原的脚洞灌入式、峰丛洼地的消水洞灌入式、溶丘谷地的入渗式和峰丛峰林谷地的天窗灌入式等五类。并对88组地下水样品测试结果进行多指标地下水污染综合评价,结果表明36.5%的水点为“三氮”污染,多以分散入渗进入地下水,其污染形态呈面状分布;15.3%的水点为重金属污染,主要通过峰丛洼地消水洞灌入式补给和溶丘谷地入渗补给两种途径,呈点状分布于污染场地附近;3.49%的水点为有机污染,主要为分散入渗补给途径,污染呈短线状或点状分布。      

邢台市岩溶水污染现状与演化趋势预测

由于地表水的污染和固体废物的乱堆放,导致邢台市岩溶水多处出现污染现象,且污染范围不断扩大,严重威胁下游水源地的供水安全。本文依据大量水质监测数据,评价了岩溶水的污染现状,采用数值方法预测了污染源继续存在和污染源得到治理两种情况下地下水污染的演化趋势,并分析了其对水源地的影响。预测结果表明:污染源存在时,地下水污染物Cr6+超标浓度等值线将以0.769m/d的速度扩散;在污染源得到有效治理和控制后,地下水污染物超标浓度等值线扩散速度将减少至0.402m/d,可见污染源治理对减缓地下水污染的扩散有重要作用。预测结果可作为选择地下水保护方案和污染治理措施的依据。