Effects of phosphate mining on the ground water of Anguar, Palau Islands, Trust Territory of the Pacific Islands
Year: 1961
Type: report
Abstract: of large-scale movement of saline water out of the lakes into adjacent ground water.Provinces A and B apparently function as independent ground-water units, and the quality of the ground water in province B has not been noticeably affected by mining activities in province A.The lakes were backfilled with limestone rubble to reduce the possibility of underground movement of saline water out of the lakes.The gross permeability of the backfill material is less than that of the surrounding limestone in province A, and, as the rate of influx of saline water was curtailed, the recharge of fresh water from rainfall tended to reduce the salinity of the ground water in the fill.In parts of the backfilled area the salinity of the water at the water table decreased rapidly in less than 1 year, as a layer of fresh water was built up at the water table.
DOI: 10.3133/wsp1608a
Author: Ted Arnow
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W130141269