THRUST TECTONICS AND RELATED CROSS-SECTION BALANCING IN THE SOUTHWESTERN FUJIAN FORELAND FOLD AND THRUST BELT

l-Intr0ductionThesouthwestemregionofFujianprovinceinChinawasregardedastheforelandfoldandthrustbeltbelongingtotheTnassicS0uthChinaOrogenicZone(Lijiliang,l992).Thethrustandnappetectonics,whichdevelopedwidelyinthisregion,havebeenstudiedforoveradecadebymanyChinesegeologists(suchas,HouQuanling,LiPeijun&LiJiliang,1995,HouQuanling,&LiJiliang,l993,GuanYuxiang&YangTianshui,l994,GuanYuxiangetc.l989,TaoJianhua,l987,etc.).Basedontheachievementsmadebythosegeologyworkersandourownresearches,thetyP…     

招远大尹格庄金矿床微量元素特征及其意义

该文以山东招远大尹格庄金矿床中微量元素为研究对象,通过对矿床围岩、矿石等微量元素的研究,表明大尹格庄金矿围岩中微量元素以富含 Bi,Au,Pb,W,Ag,Sn 为特点,矿体和矿化体中元素组合为 Au,Ag,As,Sb,Hg,B, Cu,Zn,Bi,Mo,Mn,Co,Ni,W。在5个成矿阶段中,第二阶段与第三阶段微量元素的富集程度较明显,表现为 Au, Ag,As,Co,Bi,Cu,Pb,Zn 等的富集,成矿元素可分为2个分带序列,主成矿元素为 Au Ag Cu Pb Zn Bi 组合、头晕元素 As Sb Hg 组合和尾晕元素 Co Ni 组合。     

平阴县浅层地下水地球化学环境质量评价

平阴县浅层地下水调查采样密度为1点/16km2,分析测试27项指标的含量变化规律后,认为调查区浅层地下水中除K,Mn,NO-2等指标含量变化较大,局部富集外,其他指标含量变化小,在浅层地下水中分布较均匀.选择As,Ba,Be,Cd,Co,Cu,Fe,Hg,Mn,Mo,Ni,Pb,Se,Zn,F-,Cl-,Cr6+,NO-2,COD,pH等20项指标,按<地下水质量标准>对浅层地下水环境质量进行的单因子和综合评价,结果显示较好级以上者达88.4%,而较差级仅占11.6%,无极差级分布,调查区内浅层地下水环境质量状况良好.     

Chemistry of Aerosols over Chukchi Sea and Bering Sea

The contents of elements in aerosols sampled during the First Chinese Arctic Research Expedition (CHINARE-1) show great differences from one element to another. Na, K,Ca, Mg, A1, F, and Cl are the major components in the aerosols, whose contents are larger than 30 ng/m^3. The chemical elements whose contents vary between 0.1 - 30 ng/m^3 are Br,Sr, Cr, Ni, and Zn. The chemical elements whose contents are close to or slightly higher than 0.1 ng/m^3 are Rb, Ba, Zr, Th, and Pb. The contents of As, Sb, W, Mo, Au, La, Ce, Nd,Sin, Eu, Tb, Yb, Lu, Sc, Co, Hf, Ta, and Cd are less than 0.1 ng/m^3. The mass concentration data for the same element, as observed during CHINARE-1, are almost accordant, but much lower than what is observed in the China‘ s seas or the coasts of China. The enrichment factor and electron microscopic analyses and lead isotope tracing were used to distinguish their sources.Four groups of sources can be classified as follows: anthropogenic: As, Sb, W, F, Mo, Au,Cu, Pb, Cd, V; crustal: La, Ce, Nd, Sm, Eu, Tb, Yb, Lu, Fe, Sc, Cr, Co, Ba, Zr, Hf,Ta, Cs, Mn, Th, U; oceanic:Na, K, Ca, and Mg; and mixing: Rb, Sr, Ca, and Mg.     

Distribution of Selected Critical Elements in the Carboniferous Coal-bearing Series of the Upper Silesian and Lublin Coal Basins (Poland)

The distribution of selected critical elements in the sedimentary rocks of the Carboniferous coal-bearing series within the Polish Coal Basins is presented.Critical elements such as Be,Mg,Si,P,Sc,V,Co,Y,Nb,In,Sb,La,Ce,Hf,Ta,W,Bi were analysed using inductively-coupled plasma mass spectrometry(ICP/MS).Concentrations of elements such as Sb,Bi,In and,to a slightly lesser extent,Nb,as well as Sc,show average concentrations higher than those from the upper continental crust.The average concentrations of elements like Hf,Mg,P,Y,La,and Ce are slightly lower than in the upper continental crust.Other elements,such as Be,Co,Si,Ta,W and V have average concentrations that are similar,but slightly enriched or slightly depleted,relative to the upper continental crust.The research showed enrichment of some critical elements in the analysed samples,but not high enough that extraction would be economically viable.Statistical methods,which include correlation coefficients between elements and cluster analysis,reveal a strong positive correlation between elements like Be,Bi,Nb,Sc,Ta,W and V.Very high,almost total,positive correlation is also noted between La and Ce.     

LIST OF NEW MEMBERS

A.凡now吕舍具Brooke,N.P.束四牌楼瞪士胡同福公司搏Chow,K.C.周阴基,子建,湖北大冶孩瘫探鞍股Drake,F.5.,Shantung ohristian University,T,inan,Shantuug.Edmond,Jilla西直四外尸,颐裤煤蛾公司Garretson,Mary Welleek,Colu一n飞,ia University,New York City,U.5.A.Hsu,Y.M.徐渊摩,厚甫,北京女子大率徐竟甫收搏Kao,L.高鲁,曙青,北京中央觑象台King,sohtsu G.金招基,叔初,北京嘎嘎胡同Kil:g,Kunpei c.金城,常伯,北京束城技搔胡同Kobayashi,B.小林胖生,热河阜新森大典煤绩公司K,ung,K.H.孔夏锹,章虎,北京都城煌厢街Liu,0.F…     

浙北地区土壤元素有效量及其影响因素研究

浙江省北部地区调查研究表明,受成土母质来源、土壤类型及其理化性质等因素的影响,土壤元素全量、有效量及其有效度表现为:1)低山丘陵岗地土壤中As,Cd,Mo,Pb和Se全量较高,As,Cd,Fe,Pb,Se和Zn有效量较高;而山前平原区土壤中Hg,Pb和Zn元素全量较高,由地表向深部的下降递度较小,显示为原始沉积成因特点。2)中酸性、富含有机质的红壤和水稻土中As,Cd,Cu,Fe,Mn,Pb,Se,Zn等元素有效度较高,水稻土Hg有效度最低;弱碱性或碱性、贫有机质的潮土和滨海盐砂土中As,Cd,Cu,Fe,Mn,Pb,Se,Zn等元素有效量较低,但B有效量及有效度均较高。3)统计分析表明,土壤中Mn,Cu,Zn,Mo,Cd,Pb,Se等元素全量与有效量间具显著正相关性,表明全量是有效量的重要影响控制因素;有机质含量与Fe,Cu,Zn,Cd,As和Pb有效度间为显著正相关,说明有机质较高有利于土壤元素活化;Fe,Cu,Zn,Cd,As,Pb和Se有效度与pH值为显著负相关,表明土壤酸性增强(酸化)会增加这类元素的生物有效性。     

http://www.sciencedirect.com/science/article/pii/S1674987111000193

Geochemical subsoil data obtained from China and European laboratories have been compared in this study. 787 C horizon subsoil samples from FOREGS (Forum of European Geological Surveys) geochemical baselines mapping project were sent to China’s IGGE (Institute of Geophysical and Geochemical Exploration) laboratory and composited to 190 samples according to the 160 km 160 km GNT (Global Terrestrial Network) cells. In addition to the FOREGS elemental analysis package, Au, Pt, Pd, B, Ge, Br, Cl, Se, N, Li and F were also analyzed by using the IGGE’s 76 element analytical scheme. Geochemical data statistics, scatter plotting, and geochemical map compilation techniques have been employed to investigate differences between FOREGS and IGGE analytical results. The results of two datasets, the IGGE’s analysis data for composited samples, and the FOREGS average data of samples in each GNT cell, agree extremely well for about 23 elements, viz: SiO2, Sr, Al2O3, Zr, Ba, Fe2O3, Ti, Rb, Mn, Gd, CaO, Ga, MgO, P, Pb, Na2O, Y, Th, As, U Sc, Cr, and Co. There are slight differences between-laboratory biases shown as proportional errors between the datasets for Ni, K2O, Tb, Tl, Cu, S, Sm, La, Ce, Pr, Nd, Eu, Ho, Er, Tm, Yb, Lu, Ta, Nb, Hf, and Dy. For Cd, Cs, Be, Sb, In, Mo, I, Sn, and Te, the correlation of the two datasets and the similarity of the geochemical maps are fairly good, but obvious biases exist between the two datasets at values near detection limits. Sensitivities of FOREGS analytical methods for W, Bi, Sn, Te, Be, and I are insufficient to produce reportable values in at least 80% of the samples. Although the detection limits of Ag for both FOREGS and IGGE are sufficient to provide reportable values, a large bias was found between the two datasets. This study demonstrates that consistent analytical data for certain elements of global geochemical mapping samples can be achieved by different qualified laboratories, such as China’s IGGE laboratory and some European laboratories. For some elements, such as Ag, further research on the selection of the proper analytical methods and on the development of quality control methods should be undertakendwith final recommendations adhered to by all participants of the global geochemical mapping program.     

悼念南延宗夫君

南延宗字怀楚,浙江乐清人也,少聪颖,读书过目不忘,早失怙恃,长兄一人,体弱多病,家贫甚,求学艰难,小学毕业后,由中学而大学,半工半读,家庭不负担学杂费用,且资助其兄,大学卒业後,我俩在温州结婚,迫於环境,各自奔走服务,历年来对地质颇有心得,发表论文,蜚声科学界,抗战时期,同居重庆,任矿产测勘     

LITHOLOGIC OIL RESERVOIR OF ES_3 IN LUOJIA AREA IN ZHANHUA SAG

1.IntroductionTheLuojiaareaisinthesouthZhanhuasagofnorthJiyangdepression,andtheareaofLuojianosestrUctUreis250kmZ(Fig.l).ThesouthpartisChenilavillageuplift,tothenorthpartissouthfaultofBonan,tothewestpartisLuoxifaultzone,andtotheeastpartiswestKenxiuplift.Thereare122wildcatssinceitwasdrilledinlate1960s.Thereare10oil-bearingserieshavebeenfound,theyareCambrian-Ordovician,Permo-carboniferous,Mesozoic,Kongdianformation,fourmembersofShahejieformation,Dongyingfonnation,GUantaoformation,theprov…     

Geochemical and Environmental Evaluation of Um Shashoba Gold Mine Area,Southeastern Desert,Egypt

A suite of elements(Ag,Au,Ba,Bi,Cd,Co,Cr,Cu,Ga,Hf,Hg,Mn,Mo,Ni,Pb,Rb,Sb,Se, Sr,Te and Zn),total organic carbon(TOC)and pH were analyzed in stream sediment and tailing samples from Um Shashoba area,in order to evaluate Au placer and the sediments being impacted by old mining activities.Analytical results were examined using statistical,graphical and mapping methods.In spite of the results revealing that Au and most of the elements in sediments were in general significantly lower than those in tailing,Au wa...     

中国几个主要煤产地煤中微量元素特征

采用原煤直接溶样和使用ＩＣＰ－ＭＳ方法对我国平朔,大同,六盘水和唐山几个主要煤产地煤的微是元素进行了检测,报道了这几个主要煤产地煤中５１种微量元素含量,并对基含量特征进行了讨论,研究表明,与海水有关的过渡相沉积环境中的煤的Ｌｉ,Ｂｅ,Ｓｃ,Ｔｉ,Ｖ,Ｚｎ,Ｃｕ,Ｇａ,Ａｓ,Ｓｅ,Ｙ,Ｚｒ,Ｓｎ,Ｐｂ,Ｔｈ,Ｕ和稀土元素含量相对较高,内陆湖泊沉积环境中的煤的微量元素含量相对较低。     

Chemical composition of the Tertiary black shales of West Sabah, East Malaysia

The X-ray fluorescence and ICP methods were used to analyze 60 outcrop samples of black shale, of which 15 were collected from Belait, 15 from the Setap Shale, 15 from Temburong, and 15 from the Trusmadi formations. The average compositions of the shales from the study area are 64.62%, 63.95%, 62.32%, 63.84% SiO2, 1.84%, 2.14%, 2.04%, 1.99% MgO, 2.55%, 3.12%, 2.89%, 2.72% K2O, 0.32%, 0.30%, 0.32%, 0.53% CaO, 5.86%, 6.06%, 7.14%, 6.60% Fe2O3, 207×10^-6, 180×10^-6, 213×10^-6, 200×10^-6 Rb, and 56×10^-6, 49×10^-6, 50×10^-6, 32×10^-6 Sr for the Setap Shale, Temburong, Belait and Trusmadi samples, respectively. The high Rb/Sr ratios of 3.8, 3.7, 4.2, and 6.1 are attributed to the lowest contents of Sr due to reducing conditions prevailing. The high Rb/K ratio sug- gests either brackish marine or rapid deposition that prevented equilibrium between Rb and K in the shales and marine waters.     

河南济源大峪槐圪塔岭二叠—三叠系元素地球化学特征及古环境

本文对河南济源盆地大峪槐疙瘩岭二叠系上石盒子组(P3sh)、孙家沟组(P3s)和三叠系刘家沟组(T1l)剖面岩石样品进行了元素、频率磁化率、碳酸盐以及总有机质等的分析研究,结果表明在二叠系孙家沟组(P3s)底部济源动物群化石层、以及三叠系刘家沟组(T1l)底部界线(P/T)附近,其微量和常量元素发生了较明显的变化。化石层中Ba,Cr,Hf,Nb,Th,Ti,V,Y,Tl,Zn,Cu,Ga,Pb,Ni,La,Rb,Nd,以及K2O,Al2O3,Fe2O3含量相对较高,Zr,W,Sr,Bi,Co,Ce,以及SiO2,Na2O含量较低,MgO,CaO,Mn则没有明显的变化。Ba,Hf,Nb,Th,Ti,V,Y,W,K2O,Al2O3,SiO2,Na2O,Bi,Fe2O3,Ni,Co,La,Nd,Ce,及有机碳含量在三叠系底部含量明显上升,Cu,Ga,Pb,Tl,Zn,Cr,Zr,Sr,MgO,CaO,以及岩石频率磁化率Xfd、碳酸盐含量则明显下降。该剖面不仅记录了二叠—三叠纪的生物灭绝事件,而且有明显的二叠—三叠系界线,事件及界线的形成可能与沉积环境和古气候有关,水体的变浅、炎热气候和风化作用加强可能是直接的原因。石盒子组(P3sh)主要为河流—三角洲沉积环境,古气候相对温暖湿润;孙家沟组(P3s)为三角洲平原相,前期和后期有强烈风化作用,并且炎热多雨。中期则水平面上升,水下三角洲前缘砂质沉积为主;三叠系刘家沟组(T1l)则水体进一步扩张,气温相对下降。     

中国几个弧形构造与矿床关系

在中国东部,有几个弧形构造的弧部地带,常产生很多火成岩体和与此类火成岩体有关系的金属矿床,如淮阳弧沿扬子江一带,有鄂城,大冶,阳新,瑞昌,九江,小汉阳峰,安庆,铜陵,繁昌及当涂等处的铜铁银矿,赣南及湖南弧有钨锡铅锌等矿,雪峰派有新化安化一带的锑钨矿,宁镇弧有象山,九华山,下蜀,栖霞山及钟山     

DUAL FORELAND BASIN MODEL OF CONTINENT- CONTINENT COLLISION OROGEN: EVIDENCE FROM HIMALAYAN, URALIAN AND DABIESHAN OROGENS

1.IntroductionForelandbasin,thesedimentarybasinlyingbetweenthefrontofanorogenandtheadjacentcraton,isanimportantaspectforthestudyonlithospheretectonicevolutionoforogen(e.g.,Tankard,1986,Ren,etal.,1991;Li,1992,Chen,etal.,1992,Liu,etal.,1994,LihouandAlien,1996,Li,etal.,1997,DongandZhang,1997).Currently,itisdividedintotwogenetictoes,i.e.,peripheralforelandbasinsituatedagainsttheouterarcoftheorogenduringcontinent-continentcollisionandretro-arcforelandbasinbehindamagmaticarclinkedwithsubductiono…     

信息化时代的翻转课堂(英文)

tochangethetraditionalteachingmode that teacherlectures to the students who are just listening and learning, we must usemodernscienceandtechnology,including:computertechnology,Inter-nettechnology,videotechnology,coursewaremakingsoftware,real-izetheafter- schoolextracurricularteaching,remoteteaching,students’ independentlearningintheclassroom,theteacherhelpsstudentstolearn,the teachers solvetheproblems of students,letthestudentsreallybecometheprincipalpartofteaching.     

Guidance for contributors

<正>1.Papers should be devoted mainly to various aspects of research concerning geosciences and related disciplines,such as stratigraphy,palaeontology,origin and history of the Earth,structural geology,tectonics,mineralogy.petrology,geochemistry,geophysics,geology of mineral deposits,hydrogeology,engineering geology,environmental geology,regional geology and new     

PETROLOGY AND GEOCHEMISTRY OF DIKE ROCKS IN PENGLAI COUNTY,SHANDONG PROVINGE:CONSTRAINS ON GOLD METALLOGENIC DYNAMICS

l.IntroductionInrecentdecades,ThestUdiesofdikrocks,esPeciallybasicdikerocks,hasprovidedmuchinformationaboutthetectonicenviroInnen,geologicalevend,interactionbetWeencrustandmantie.TheassociationofdtherocksandgoldIninera1isationhasattrctedmangeologicalscholarsattentons(Rock&Groves,l988a,l988b;WyInan&KAnch,1988;Lin,1984;Sunetal.,l995a;1995b).Inthesrtcle,basedonstUdiesofdikes,authorsproposethatdtherockscanbedividedintothreeseries:i.e.acidicdtherocks,intermedia-basicdikerocks,basicdtherocksac…     

Studies on the Velocity Structure of Crust-Upper Mantle beneath Eastern Qinghai-Tibet Plateau Using Seismic Tomography

l.IntroductionAteleseismicprofilingwasconductedjointlybytheChineseAcademyofGeologicalSciencesandtheInstitUteofGeophysicsandInnerTectonics,JosephUniversity,France,alongthemainroadfromGonghetoYushuinQinghai,withanarrayof4Othree-componentMinititanstationsandl3one-componentCEISstations,fromJunetoNovember,1998.ThestUdycoversahugearearangingfromthenofthoftheBangong-NujiangFaulttothesouthoftheMid-QilianFault,andfromtheeastoftheQaidamBasintothewestoftheLongmenShanFault,goingthroughSouthQ…