Geochemical processes in the saltwater-freshwater transition zone: comparing results of a sand tank experiment with field data

被引：16

作者：

Panteleit, B. ^{[1
]}

Hamer, K. ^{[2
]}

Kringel, R. ^{[3
]}

Kessels, W. ^{[4
]}

Schulz, H. D. ^{[2
]}

机构：

[1] Geol Survey Bremen, D-28359 Bremen, Germany

[2] Univ Bremen, Dept Geosci, D-28334 Bremen, Germany

[3] Fed Inst Geosci & Nat Resources, D-30655 Hannover, Germany

[4] Leibnitz Inst Appl Geosci, D-30655 Hannover, Germany

来源：

ENVIRONMENTAL EARTH SCIENCES | 2011年 / 62卷 / 01期

关键词：

Hydrochemical modeling; Saltwater intrusion; German North Sea coast; Tank experiment; MULTICOMPONENT REACTIVE TRANSPORT; COASTAL AQUIFER; NW GERMANY; SEAWATER; GROUNDWATER; INTRUSION; SULFUR; PRECIPITATION; DISSOLUTION; INTERFACE;

D O I：

10.1007/s12665-010-0499-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Geochemical processes, occurring in a stable transition zone between saltwater and freshwater, were simulated in a 2D, multi-layer flow chamber experiment. Mixing, calcite dissolution, and oxidative degradation of organic matter were identified as the main controlling factors. The results of the chamber experiment were compared to field data and verified by thermodynamic modeling. Similarity in most ion distributions suggests the general applicability of the experimental method. Differences in the redox conditions between field and experiment were reflected by the oxidants involved in the mineralization of organic carbon; while field data show evidence of sulfate reduction, the presence of oxygen in the laboratory experiment resulted in the reoxidation of sulfides.

引用

页码：77 / 91

页数：15

共 57 条

[51] EFFECT OF PRECIPITATION INHIBITORS ON CALCIUM-CARBONATE SCALE FORMATION [J].