TY - RPRT TI - Advancements in hydrochemistry mapping: methods and application to groundwater arsenic and iron concentrations in Varanasi, Uttar Pradesh, India AU - Ricardo A. Olea AU - N. Janardhana Raju AU - Juan J. Egozcue AU - Vera Pawlowsky-Glahn AU - Shubhra Singh PY - 2017 DO - 10.1007/s00477-017-1390-3 UR - https://pubs.usgs.gov/publication/70199946 ID - 70199946 ER -