FREZCHEM: A geochemical model for cold aqueous solutions
نویسندگان
چکیده
#,-(!!/%&%*0!1%&%)*23!4-&0#050%6!77.8!1)99#,!:)*;<)=6!1%-,6!>[email protected]!9#$%&(B)*#,-CD*#(%D5(!! ! ! Introduction: E1FGHIF'!#&!)-!%J5#$#K*#5B! 23%B#2)$!03%*B,D=-)B#2!B,D%$!L)*)B%0%*#M%D!N,*! 2,-2%-0*)0%D!%$%20*,$=0%!&,$50#,-&!O0,!#,-#2!&0*%-903&!P! 7Q!BR!5&#-9!03%!:#0M%*!)LL*,)23!S.+7T!N,*!03%!0%BL%*)+ 05*%!*)-9%!N*,B!UVWQ!0,!78XH6!)-D!03%!L*%&&5*%!*)-9%! N*,B!.!0,!.QQQ!K)*&!SYT(!!Z3%!25**%-0![%*&#,-!,N!03%! B,D%$!#&!L)*)B%0%*#M%D!N,*!03%!>)+\+'9+H)+E%O44R+ E%O444R+]$+I+H$+H$^_+`*+a^_+>^Y+^I+IH^Y+H^Y+ H^7+^7+HI_+a#+I7^!&=&0%B!)-D!#-2$5D%&!.QQ!&,$#D! L3)&%&!#-2$5D#-9!#2%6!23$,*#D%&6!L%*23$,*)0%&6!&5$N)0%&6! 2)*K,-)0%&6!&,$#D+L3)&%!)2#D&6!-#0*)0%&6!)2#D+&)$0&6!#*,-! ,b#D%&!)-D!3=D*,b#D%&6!)$5B#-5B!3=D*,b#D%&6!&#$#2,-! B#-%*)$&6!9)&!3=D*)0%&6!)-D!K*,B#D%!&#-;&(!!Z3%!,Kc%2+ 0#[%&!,N!03#&!L*%&%-0)0#,-!)*%!0,d!O.R!D%&2*#K%!03%!:#0M%*! )LL*,)236!O7R!D#&25&&!B,D%$!$#B#0)0#,-&6!OYR!D%&2*#K%! 5&%*!)22%&&!0,!03%!E1FGHIF'!2,BL50%*!2,D%6!)-D! O_R!D%&2*#K%!')*&!)LL$#2)0#,-&(! Pitzer Approach: 4-!03%!:#0M%*!)LL*,)23!S.+7T6!03%! )20#[#0=!2,%NN#2#%-0&!O!R!)&!)!N5-20#,-!,N!0%BL%*)05*%!)0! .(Q.!K)*!L*%&&5*%!N,*!2)0#,-&!O'R6!)-#,-&!Oe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
منابع مشابه
Modeling aqueous ferrous iron chemistry at low temperatures with application to Mars
Major uncertainties exist with respect to the aqueous geochemical evolution of the Martian surface. Considering the prevailing cryogenic climates and the abundance of salts and iron minerals on Mars, any attempt at comprehensive modeling of Martian aqueous chemistry should include iron chemistry and be valid at low temperatures and high solution concentrations. The objectives of this paper were...
متن کاملModeling Ferrous/ferric Iron Chemistry with Application to Martian Surface
Introduction: The Mars Exploration Rover (MER) missions have stimulated considerable thinking about the surficial geochemical evolution of Mars [1-4]. Among the major MER findings is the presence of the mineral, jarosite (a ferric sulfate salt), which suggests formation from an acid-sulfate brine. The objectives of this work were to (1) add ferric iron chemistry to an existing ferrous iron mode...
متن کاملModeling ferrous–ferric iron chemistry with application to martian surface geochemistry
The Mars Global Surveyor, Mars Exploration Rover, and Mars Express missions have stimulated considerable thinking about the surficial geochemical evolution of Mars. Among the major recent mission findings are the presence of jarosite (a ferric sulfate salt), which requires formation from an acid-sulfate brine, and the occurrence of hematite and goethite on Mars. Recent ferric iron models have l...
متن کاملReactive Geochemical Transport Modeling of Concentrated Aqueous Solutions: Supplement to TOUGHREACT User's Guide for the Pitzer Ion-Interaction Model
متن کامل
Modeling aqueous perchlorate chemistries with applications to Mars
NASA’s Phoenix lander identified perchlorate and carbonate salts on Mars. Perchlorates are rare on Earth, and carbonates have largely been ignored on Mars following the discovery by NASA’s Mars Exploration Rovers of acidic precipitated minerals such as jarosite. In light of the Phoenix results, we updated the aqueous thermodynamic model FREZCHEM to include perchlorate chemistry. FREZCHEM models...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Computers & Geosciences
دوره 36 شماره
صفحات -
تاریخ انتشار 2010