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1.
I. A. Kiseleva L. P. Ogorodova L. V. Melchakova M. R. Bisengalieva N. S. Becturganov 《Physics and Chemistry of Minerals》1992,19(5):322-333
The thermodynamic properties of the copper carbonates malachite and azurite have been studied by adiabatic calorimetry, by heat-flux Calvet Calorimetry, by differential thermal analysis (DTA) and by thermogravimetrie (TGA) analysis. The heat capacities, C p 0 of natural malachite and azurite have been measured between 3.8 and 300 K by low-temperature adiabatic calorimetry. The heat capacity of azurite exhibits anomalous behavior at low temperatures. At 298.15 K the molar heat capacities C p 0 and the third law entropies S 298.15 0 are 228.5±1.4 and 254.4±3.8 J mol?1 K?1 for azurite and 154.3±0.93 and 166.3±2.5 J mol?1 K?1 for malachite. Enthalpies of solution at 973 K in lead borate 2PbO·B2O3 have been measured for heat treated malachite and azurite. The enthalpies of decomposition are 105.1±5.8 for azurite and 66.1±5.0 kJ mol? for malachite. The enthalpies of formation from oxides of azurite and malachite determined by oxide melt solution calorimetry, are ?84.7±7.4 and ?52.5±5.9 kJ mol?1, respectively. On the basis of the thermodynamic data obtained, phase relations of azurite and malachite in the system Cu2+-H2O-CO2 at 25 and 75 °C have been studied. 相似文献
2.
刁飞一ISON WITH THOSE OF NEIGHBORINGAREAS(AMCS,ISSN 1000一0674,CN32一1 1 89,12(4),1995,p.349一373,2 graPhs,4tables,35 ref,wirh English abstraet)962146 Shang Ping(Fuxin Institute of Mi-n ing and‘I’eehnology,Fuxin,Liaoning)THE NATURE AND CHARACTERS OFTHE EARLY CRETACEOUS FLORAFROM THE PINGZHUANG BASIN,IN-NER MONGOLIA(GR,ISSN 0371一5736,CN 11一1 952/P,41(6),1995,P.533一536,1table,6 ref,with English abstraer)962144 Tong Guobang(Institute o… 相似文献
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980326 Chen Jianqiang(China University ofGeoseienees,Beijing)The MicroskeletalStruCtUreS ofM公k耐t勿LavruseviCh(Rugosa)(Aeta Palaeontologieal Siniea,ISSN 0001一6616,CN 32一1188,36(4),1 997,p.446一452,2 tables,2 Plates,18ref) Maikottia Lavrusevieh 1 967 15 a group ofPeeuliar fossil eystiPhyllids,usually in eerioideompound forms with eystiPhylloid septa eom-posed of eomposite rhabdaeanthines,rangingfrom Lower Silurian(Llandovery series)toUPPer Silurian(Ludlow series)in theYangtze … 相似文献
4.
peldense,X.yixianenese,X.fuxinense sP.nov.and X.h:‘011,Zhe,,se sP.nov.In addi~,一on,rwo other sPeezes rePorred by prev一ousaurhors were also ldenrifled as X.‘o),ch夕l;a,,u,):and X.l;ao,,z,之ge,zse .Thepalaeoeeologieal envlronmenr model and phy-logeno51s of the genus Xeno了夕10,,aro analyzedand dlseussed irlt}115 paper.20001600 Ding Qiuhong(Shenyang Institureof Geology and Mineral Resourees,Shenyang,Liaoning);Zheng Shaolin Meso-zoic Fossil Woods of Genus Xenoxylon fromNortheast Chi… 相似文献
5.
980318 Jiao Jianwei(YuanPing IndustrialSchool,YuanPing,Shanxi)The Discovery ofthe Oldest MegasPore“Qiuguo”of PermianStratum of Don梦han,Taiyuan and its Ev企lut五on Slgnifieanee(Journal of Geology andM inera!Resourees of North China,ISSN1005一2682,CN14一1192/P,12(4),1997,P.315一318,1 Plate,11 ref) The Cyeas megasPore leaf was firstlyfound in Lower Permian stratum of Dong-shan,Taiyuan of Shanxi Provinee.It showsthatt蚤le eone一shaped strueture was possiblyMediterranean eurre[1… 相似文献
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971349 Che;19 Jie(China Universityseienees,Beijing)The MammaljanShowjng ClimatieF盆uetuat应on—ExamPle of the Early Pleistoceneof Ge。FaunaS AS anMam-malian Faunas from Zhoukoudian,Beijing,China(ESI矛,ISSN 1 005一2321,CN 11一3370/P,4(2),1997,p·275一279,1 graph,1 table,10 ref) By analyses of the four local marnmalianfaunas from Zhoukoudian,Beijing,the EarlyPleistoeene elimatie and eeologieal environ-CN 11一1 905/Q1 53,1 graph,1735(2).1997,P.145一mental ehangespaper.One of1 .90M… 相似文献
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Polarized single crystal absorption spectra, in the spectral range 40 000–5 000 cm-1, were obtained on Co2+ in trigonally distorted octahedral oxygen fields of buetschliite-type K2Co(SeO3)2 (I), K2Co2(SeO3)3 (II) and zemannite-type K2Co2(SeO3)3 · 2H2O (III). Site symmetries of Co2+ are
m (D3d) in I, 3m (C3v) in II, and 3 (C3) in III. The spectra can be interpreted on the basis of an electric dipole mechanism, wherein transitions of Co2+ in the centrosymmetric site in I gain intensity from dynamic removal of the inversion centre by vibronic coupling. In accordance with the elongation of the CoO6 octahedra along the trigonal axis, the split component E(g) of the ground state 4T1g in octahedral fields is the ground state in all three compounds. Trigonal field parameters Dq(trig), D, D and the Racah parameters B have been fitted to the energies of spin allowed transitions (293 K) as follows: I: 744, 94, -16, and 838 cm-1, resp.; II: 647, 227, 42, and 798 cm-1, resp.; III: 667, 181, 21, and 809 cm-1, respectively. Racah parameters C were estimated from the energy of some observed spin-forbidden transitions to be 3770 (I), 3280 (II), and 3465 cm-1 (III). Values of Dq and of the Racah parameters B and C indicate slight differences of Co2+-O bonding in I as compared to II and III, with somewhat higher covalency in compounds II and III which contain face-sharing CoO6 octahedra with short Co-Co contacts. Also, in II and III the observed D values do not agree with theoretical D values, predicted from the magnitude of the mean octahedral distortions. 相似文献
8.
sedimentary environment.Based on the de-formation feature of the syngenetie elast,theauthor believes that the ShuangqiaoshanGroup in this area has undergone two phasesof deformation:the regional fold deformat一ondominated by flattening and duetile shear de-formation dominated by shearing.980139 Dong Yunpeng(Department of Geol-ogy,Northwest University,Xi,an,Shaanxi);Zhou nngwu Sm一Nd IsotoPieAges of the Songshugou OPhiolite from theEast Qinling and its Geologieal Significance(Regional … 相似文献
9.
961933 Liu Shuwen(Peking University,Beijing,100871)STUDY ON FLUID IN-CLUSIONS FROM HIGH GRADE META-MORPHIC ROCKS IN EASTERN HEBEIPROVINCE(MGQG,ISSN0256一1492, 一29一CN37一1117/P,11(4),1995,P.375一385,4 graphs,5 tables,1 plate,14 ref,withEnglish abstraet)961934 Zhu Ailin(Survey of RegionalGeology,Guiz卜ou Bureau of Geology andMineral Resourees);Wang Changwei FEA-TURES OF MICROSTRUCTURES AND Fl-NITE STRAIN MEASUREMENTS WITHINTHE TR… 相似文献
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962057 Yang Xingke(Xi’an College of Geo-logy,710054);Ji Jinsheng ANALYSIs OFORE一FORMING CONDITIONS ANDFEATURES OF KANGGUERTAGE WOL-LASTONITE ORE DEPOSIT(JXCG,ISSN1000一548X,CN61一1074/P,17(4),1995,p .24一30,4 graphs,1 table,3 ref) The authors have first found wollas-tonite in Kangguertage of eastern Tianshan.On the basis of speeial researeh them and byanalysing regi6nal strata,teetonies,magmaaetivities,and wollastonite ore features,theauthors find that r… 相似文献
11.
20071213 Guo Xianpu(Institute of Geology, Chinese Academy of Geological Science,Bei- jing 100037);Wang Naiwen Palaeontolog- ical Proof of the Naij Tal Group-Complex as Melange Aggregation in the Eastern Kun- lun Orogenic Belt and Its Geologic Signifi- cance(Geological Review,ISSN0371-5736, CN11-1952/P,52(3),2006,p.289-294, 2 illus.,2 plates,19 refs.) 相似文献
12.
P,27(2),1997,p.162一177,1 graPh,3tables,5 ref) In this PaPer advanee exPerimental for-mula that show the relationshiP of shear zonesthiekness of roeky slope ro largesr datesquirming deforrnarion to apply Grey theory.It again advanees systematie merhods that inview largest date of squirming deformation toealeulates sliding moment of rocky slope and itinfluenees effeet to interrelate take Preeautionsagainst calamities.It was inspeeted by ob-serve material of reservoir Vaeant of Italy andit m… 相似文献
13.
20062082 Chen Baoquan (Fujian VocationalInstitute of Information and Technology,Fuzhou, 350003) Geochemistry Characteris-tics of Trace Elements of Precambrian Meta-morphic Rock in Northern Fujian Province(Geology of Fujian, ISSN1001-3970, CN35-1080/P, 24(2), 2005, p.221-228, 3illus., 5 tables, 2 refs.)Key words: metamorphic rocks, minor ele-ments, Fujian ProvinceBased on the characteristics of rock asso-ciation and multielement quantitative analysisresults of Precambrian metamorphic… 相似文献
14.
971532 Cheng Lilai(Department of Geologyand Mineral Resourees of Henan Provinee-Geophysieal Prospecting Team,Xinxiang,Henan)The Preliminary Diseussion onGeotechnieal Engineering of Jiyuan City,Henan Provinee(HNG,ISSN 1006一320X,CN 41一1086/P,15(2),1997,P.129一1 34,2 rables,6 ref) The author diseussed*he geoteehnieal ex卜gineering of Jiyuan City in this paPer.Theaehievements in geologieal exploration ofgeoteehnieal engineering in Jiyuan City aresummed up and indieated some pendin… 相似文献
15.
20002326 Bie Bixiong(Government of YiduCity,Yidu,Hubei);Wu Weiya Study onMeehanism for Chadian Embankment Col-IaPse at Yidu Reaeh of Changjiang(Yangtze)River and its Control Measures(Journal of Engineering Geology,ISSN 1004一9665,CN 11一3249/P,8(3),2000,P .272一276,3 illus.,1 table,6 ref) Embankmenr eollaPse 15 a heavy hazardfor Changjiang(Yangtze)River during floodseason.The Chadian embankment eollaPseoeeurred at Yidu reaeh of Changjiang Riverduring rhe flood period 1998.The … 相似文献
16.
20062203 Chen Cunron (Mineral and Geolog- ical Technique Development Company of Fu- jian Province, Fuzhou, Fujian 350011); Jie Jing Test Results of Cement Admixtures Us- ing Aluminilite Ores from Nanyu Town, Fu- jian Province (Geology of Fujian, ISSN1001 -3970, CN35-1080/P, 24(4), 2005, p. 229-234, 9 tables, 3 refs.) Key words: alunite deposits, ceramic raw materials It is to analyze partitioning test results of cement admixtures used by the aluminilite ores from Nanyu Town and to… 相似文献
17.
20001418 Cheng Yuqi(Geologieal Institute,Chinese Aeademy of Geologieal Seienees,Bei-iing);Wan Yusheng Preliminary Study onthe IsotoPie Age of MetamorPhism and Ana-texis of the FuPing GrouP of Xiaojue,Ping-shan County,Hebei Provinee,China(AetaGeologiea Siniea,ISSNOO01一5717,CNll一1 951/P,74(l),2000,P.30一38,2 illus·,ltable,1 Plare,13 ref) Part of the metamorphie roeks of theEarly Preeambrian Fuping Group of the studyarea have been subjeered to differential;na-texis shortly af… 相似文献
18.
20051499 Fang Aimin (Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029); Liu Xiaohan Preliminary Study on the Spore- Pollen Assemblages in the Cenozoic Sedimentary Rocks in Grove Mountains, East Antarctica (Quaternary Sciences, ISSN1001-7410, CN11- 2708/P, 24(6), 2004, p.645-653, 2 illus., 2 tables, 49 refs., with English abstract) Key words: palynological assemblage, Pliocene, Antarctica 20051500 Ouyang Shu (Nanjing Institute of Geology and Palaeo… 相似文献
19.
20050341 Deng Shenghui (Research Institute of Petroleum Exploration and Development, Beijing); Liu Yongchang Fossil Plants fromthe Late Middle Jurassic in Yabula Basin, Western Inner Mongolia, China ( Acta Palaeontologica Sinica, ISSN 0001 - 6616,CN32-1188/Q, 43(2), 2004, p.205-220,1 illus., 3 plates, 3 refs.) Keywords: Middle Jurassic, floral studies,Inner Mongolia The plant fossils described in this paperwere collected by the authors in 1998 from theu… 相似文献
20.
p lete downward and semidownwar(10一)。ra-t ior、whlehi、quant亏totively eomparod on(lea!eulated.1’he rcsults show that一f eonlpared with the eonsequent eonstruet一onmethod,two(lownward〔。nsrrt一cr旧ns withsmall deformar旧 n ean meer ther。(一u:res offoundarlon Pir stabil一ty,but rhe fir、r一5 nloreeeonomiealr}lan seeond one.Addil.urlolly.some new un〔lerstand一ng for tll。。·:,l(,ulor一onrnerho〔1、al、0 raised一n tll一sf)。一)er.962254 ZhaoY[,ebo(Norr}1 Ch一n:,〔二。·o。、xx)Iu-ration … 相似文献