An Object-Oriented Diagnostic Model for the Quantification of Porewater Geochemistry in Marine Sediments  

作　　者：Hong Ye Tao Yang Guorong Zhu Shaoyong Jiang 

机构地区：[1]State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University [2]Collaborative Innovation Center of South China Sea Studies, Nanjing University [3]State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Resources, Collaborative Innovation Center for Exploration of Strategic Mineral Resources, China University of Geosciences

出　　处：《Journal of Earth Science》2015年第5期648-660,共13页地球科学学刊（英文版）

基　　金：supported by the National 973 Project (No. 2013CB835000);the National Natural Science Foundation of China (Nos. 41230102 and 40903002);National Key Scientific Project organized by the China Geological Survey (No. GZH201200305-06-04)

摘　　要：The reaction-transport model is widely used to identify and quantify dissolved chemical species in sediment porewaters. In this paper, a modularized code framework of diagenetic model was proposed as a diagnostic tool to fit the porewater profiles in marine sediments. Based on the conservation principle of the finite volume method, we combined the discretized diagenetic equations with various geochemical reactions, including but not limited to methanogenesis, sulfate reduction, etc.. The code was organized in object-oriented FORTRAN and verified with literature parameters, which proved its robustness and effectiveness. Finally, three different sites（IODP Expedition 311 Site U1327, UBGH2-1_1, ODP Leg204 Site 1245） are exemplified as case studies.The reaction-transport model is widely used to identify and quantify dissolved chemical species in sediment porewaters. In this paper, a modularized code framework of diagenetic model was proposed as a diagnostic tool to fit the porewater profiles in marine sediments. Based on the conservation principle of the finite volume method, we combined the discretized diagenetic equations with various geochemical reactions, including but not limited to methanogenesis, sulfate reduction, etc.. The code was organized in object-oriented FORTRAN and verified with literature parameters, which proved its robustness and effectiveness. Finally, three different sites（IODP Expedition 311 Site U1327, UBGH2-1_1, ODP Leg204 Site 1245） are exemplified as case studies.

关 键 词：POREWATER DIAGENESIS reaction-transport model 

分 类 号：P736.21[天文地球—海洋地质] TP311.52[天文地球—海洋科学]