zZ Ü 2Á»¹@¹/X£Ä¥¹ oÄÐ E王珍岩, 孟广兰, 王少青(ÏS SÐýZ ùîî, ]266071)K1:渤海莱州湾南岸地区赋存有大量的地下卤水,许多研究者认为这些卤水是第四纪地质历史时期古海水经强烈蒸发浓缩后埋藏而成的 b运用反向地球化学模拟理论,选用美国地质调查局(USGS)提供的PHREEQC(1997)地球化学模拟软件,对莱州湾南岸昌邑廒里501孔各层卤水的水化学演化过程进行模拟 b研究结果表明,该地区的地下卤水是由古海水经强烈蒸发浓缩后被沉积物埋藏,并在赋存过程中发生水null岩相互作用,使地下水出现方解石 a石膏及CO2气体的过饱和析出,并伴随与沉积物发生K+ aNa+ aMg2+ aCa2+之间的阳离子交换反应 b其中的浅层地下卤水还受到地表盐场析盐后排放卤水的侵染 b1oM:地下卤水;水文地球化学模拟;莱州湾南岸Ïms Ë|:P736.4null null nullÓDSM:A null null nullÓcI|:0256null1492(2003)01null0049null05null nullzZ Ü 2Á¹ u®iµv¥ 0ª¹/X£ bXµ¥ùîVü,tX£^®»¹@¹É åNH ù¥ Z£Ü <? iêª$¶"¥[1null 3] b'ÓÊ4¾¹ uiz a î ^±¥Ä_ 0),FÛFÛ)¿Ãÿ;'ªõâX£Ï þM'û^V¥;Z£X£ÏF÷(NaCl) (Ãr,V7 "F÷T¹Ð Eùî¥ þM(501null1") b·¥9زT V¹ E9Ø¥Ø Ê44G b4.3nullX£¥¹ oÄÐÄ 9ØVñ,Z³F aFÛ aCO2 8¥K+ aNa+ aMg2+ aCa2+W¥ Ö0ÐQ^Y eÅZ£Ä¹tX£¥×1¹ oÄÐVñ, ðT¨¥Yû1 ± Ð b501null1 .£X£¥ EØVü,Ð5X£ÏF÷(NaCl)iÃrÿ(logSI= - 1null55,Z³FFÛ¥æÎ aCO2¥[#X£ÏK+ aNa+Ö0жû ¸88î ¸¥Mg2+ aCa2+ Ö09^ÐX£Ä¥×1Vñ b 0VªX£®¿Hq µ,^s¹V£8¥Y, Á÷ uVC¹^%s÷Æ3ÁX£¥Y;'ªX£i z,'s1 ¹V£¥Y, £ÄÐ+ V ?ö ]ñs'ª£¥Y b ð¹ oÄÐVñX£Ä¥YûüA b EùTQ Ü 2Á Üð 0ª¹/X£î aÄ¥ö1¹ oÄÐVñ bÁ:青岛海洋大学邱汉学教授为本文的完成提供了部分参考文献,谨致谢意 bnull InullÓnullD[1] nullÛØÈ,· á ,,> .. ÜÁ¹/ iêZ£±í͹ oÄÐsÈ# îyùî[J].Z еt, 1990, 21(6):585null 587.[2] nullbµ¾,Ô< §,¦ ].ÏSZZ»¹@¹/X£[J].Ø: SÐñ,1996. 123null 152.[3] nullf¥V,ÏÒ ,çq. Ü 2Á÷Wª¹ªÏæZ£¥+# îÌâ[ J].Z Ð, 1996, 18( 6): 61null68.[4] null GarrelsR M, Tompson M E. A chemical model for sea water at25null and one atmosphere[ J]. American Journal of Science,1962,260:57null 66.[5] null GarrelsR M, Mackenzie F T. Origins of the chemical composinulltionof somespringsandlakesin Equilibrium Concepts in NaturalWater Systems[J]. Amer. Chem. Soc. Adv. Chem. Ser., 1967(67):222null 242.[6] null HelgesonH C. Evolution of irreversible reactions in geochemicalprocessinvolving minerals and aqueous solutions- I.Thermodynullnamic relations[ J]. Geochimica et Cosmochimica Acta, 1968(32):853null 857.[7] null PlummerL N, Back W. The massbalance approach: applicationto interpreting the chemical evolution of hydrologoic systems[J].American Journal of Science, 1980, 280:130null 142.[8] null PlummerL N,ÛÓ\.£nullûMºT¨¹ oÄÐ ¥í$ÐZ¬[J].¿ê¹ÉÐýÐ, 1993,16(2):128null 135.[9] null PlummerL N, Parkhurst D L, Thorstenson D C. Developmentof reaction models for groundwater systems[J]. Geochimica etCosmochimica Acta, 1983, 47:665null 686.[10] null PlummerL N , John F B, Roger WL . Geochemicalmodelingof the Madison Aquifer in parts of Montana Wyoming. andSouth Dakota[J]. Water Resources Research, 1990, 26( 9):1981null 2 014.52null null null null null null null null null null null null null null null null null null null nullZ ¹Éл¹@¹É2003 Mnull[11] nullR¥Z,+v Ø,ÒQ. Üð¹/£ÄÐÌâÄ¥¹ oÄÐ E[J].ÏS SÐ(D ), 1997, 27( 4): 360null365.[12] null¦ê;,+v Ø,ÒQ.FE Üð¹/£ÄÐÄ¥É Ü E[J].¹É ß, 1997, 43(4):434null 439.[13] null WoodsJR . Thermodynamicsofbrinenullsalt equilibrianullI. ThesysnulltemsNaCl- KCl- MgCl2- CaCl2- H2O and NaCl- MgSO4-H2O at 25null [J]. Geochimica et Cosmochimica Acta, 1975,39:1 147null 1163.[14] null Harvie C E, Weare JH . The prediction of mineral solubilitiesin naturalwaters: the Na- K- Mg- Ca- Cl- SO4- H2O sysnulltem fromzero to high concentration at 25null [J]. Geochimica etCosmochimica Acta, 1980,44:981null 997.[15] null HarvieC E, EugsterH P , Weare JH . Mineral equilibria inthesixnullcomponent seawater system. Na- K- Mg- Ca- SO4-Cl- H2O at 25null II: Compositionofthe saturatedsolutions[J].Geochimica et Cosmochimica Acta, 1982,46:1 603null 1 618.[16] null Parkhurst D L . Usernull s guide to PHREEQCnull a computer pronullgram for speciation reactionnullpath, advective transport, and innullverse geochemical calculations[A]. U.S.G.S. Water ResourcesInvestigation Report 95null 4227[C]. 1995.[17] null Truesdell A H, Jones BF . WATEQ, A computerprogram forcaculating chemical equilibria of natural waters[ J]. Journal ofResearch, U.S. GeologicalSurvey, 1974,2:233null 274.[18] null W®ó , J J :ô÷,cr.£ÄÐnull? £ÄÐÜ[M].Ø: SÐñ, 1987.389.GEOCHEMISTRYMODELINGOFQUATERNARYSUBSURFACEBRINESINSOUTHCOASTOFTHELAIZHOUBAY,THEBOHAISEAnull TAKINGBRINESFROMCOREnullAOLI501 INCHANGYIAREAASANEXAMPLEWANG Zhennullyan, MENG Guangnulllan, WANG Shaonullqing(Institute of Oceanology, ChineseAcademy of Science。