Documents

A literature review was completed to summarize current information regarding the characteristics and potential performance of Gila Conglomerate as a capping material and plant growth medium.

An ecologically based classification system, when accompanied by digitized biotic community maps, has been shown to be useful for plotting and assessing plant and animal affinities in the American Southwest and northwestern Mexico.

This document provides guidance for the management of about 930,200 acres of Federal surface and mineral estate administered by the Bureau of Land Management (BLM) in Maricopa, Gila, Pima, Pinal, and Yuma Counties in central and southern Arizona. It also provides guidance for administration of an additional 210,000 acres of mineral estate within these four Counties.

COVER ONLY

Materials that meet the criteria of Freedom of Information Act exemptions are not posted on this website. Culturally sensitive materials not posted here fall under this criteria.

Call it a plant for all seasons, call it a landscaper's dream, call it what you may, the hardy pyracantha has many outstanding qualities.

Resolution Copper plans to use sodium isopropyl xanthate (SIPX; C₄H₇OS₂Na) as a collector agent for sulfide mineral processing. The purpose of this technical memorandum is to provide a summary of the use, properties, decomposition kinetics, and decomposition products for SIPX. This information is used to evaluate the environmental fate and transport characteristics of SIPX relevant to the tailings storage facility (TSF) for the Resolution Copper Project.

The Fundão Tailings Dam failed on November 5, 2015 in a liquefaction flowslide that initiated at the dam’s left abutment. This Investigation was performed to determine its cause.

In structuring its investigation process, the Panel systematically identified and evaluated multiple causation hypotheses. It further imposed hypothesis testing by means of the following three questions that the candidate failure mechanism should be able to explain:

After reviewing the results, a sensitivity analysis was commissioned to understand the impact of a number of model input parameters on the predicted subsidence limits. This document is presented as an addendum to the original report, documenting the results of this sensitivity analysis.

This technical memorandum was prepared to document preliminary results of fate and transport modeling using additional seepage controls to reduce seepage rates developed for Resolution Copper (RC) tailings storage facility (TSF) alternatives.

The survey was designed to help answer questions about the depths to bedrock and character of the basin fill in support of a geotechnical feasibility study for the proposed TSF.