The Jajur coal deposit, northwestern Armenia, by Brenda Pierce, Gourgen Malkhasian and Artur Martirosyan. For the first time, all data relating to the Jajur coal deposit, stratigraphic, coal quality, and resource information, are contained in one comprehensive, interpretive report. This report is the result of a multiyear study of coal exploration and resource assessment of Armenia. Reported here is a synopsis of the previously unaccessible data contained either in the state archives of the former U.S.S.R. Ministry of Geology and current Republic of Armenia's Ministry of Environment or the former Soviet and current Republic of Armenia Academy of Sciences. They are published to disseminate administrative information or important scientific information of an ephemeral nature.
Dams have major downstream effects in settings throughout the United States.
These effects depend on the operating regime of the dam, the extent of flood control, the amount of sediment deprivation downstream, and the nature of riverine and aquatic ecosystems in the river. This publication provides an overview of the effects of six dams on the downstream environment, written in a style for lay audiences. The human factor in mining reclamation, by B. F. Arbogast, D. H. Knepper, Jr. and W. H. Langer. This report both describes mine sites with serious problems and draws attention to thoughtful reclamation projects for better future management. It presents information from selected sites in terms of their history, landform, design approach, and visual discernment.