Premium
Error Propagation in Geochemical Calculations of Groundwater‐Mineral Interactions: A Case Study from the Pingdingshan Coalfield, Henan
Author(s) -
Guangcai WANG,
Shu TAO,
Zhaoli SHEN,
Zuoshen ZHONG
Publication year - 2000
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2000.tb00482.x
Subject(s) - groundwater , water saturation , mineral , saturation (graph theory) , computation , mineralogy , geology , propagation of uncertainty , soil science , environmental science , statistics , chemistry , mathematics , algorithm , geotechnical engineering , organic chemistry , combinatorics , porosity
The WATEQ4F‐based “multiple step method”, or the method of running WATEQ4F repeatedly, was used to evaluate the error propagation in computations of water‐mineral interactions under the circumstances of constant and varied temperatures due to the uncertainties of input variables. The results show the following: the errors of water chemistry analysis can strongly affect the modelling results of water‐mineral reactions; different input variables (errors) have different effects on the saturation indices (S.I.) of different minerals; in many cases, the S.I. errors of minerals change with temperatures.