Matches in SemOpenAlex for { <https://semopenalex.org/work/W2321524882> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2321524882 abstract "A difficult question that arises in matters related to metal mining concerns the background concentration of elements in natural waters prior to mining. The answer to this question speaks to both regulatory limits for operating facilities as well as cleanup and remediation practices for abandoned mines. This study characterizes the aqueous geochemistry of naturally-occurring acid rock drainage (ARD) for three historic mining districts of Colorado and considers the magnitude of the initial impact as well as natural amelioration processes. Water quality data are reported for seeps and streams in drainage basins with weathering sulfides hosted in metasediments, metamorphic terrain, and highly altered volcanics. Water samples and field parameters were collected from both natural ARD seeps, and from within natural ARD streams. Water samples were analyzed at the Colorado Department of Health for dissolved Al, Ca, Cu, Fe, Mg, Mn, K, Na, SO4, and Zn. Additionally, select samples were analyzed for dissolved As, Cd, Cr, Co, Pb, Hg, MO, Ni and Se. Results indicate that two types of water contribute to natural ARD: 1) dilute ARD, influenced by storm events; and 2) concentrated seeps. The naturally-occurring ARD from concentrated seeps showed a range in pH from 2.39 to 4.49 and TDS from 1890 mg/L to 2 18 mg/L. The naturally-occurring ARD from stream samples showed a similar range in pH, but with TDS measurements as low as 18.3 mg/L. Naturally-occurring ARD is observed to be attenuated by precipitation of secondary solid phases and simple dilution. The precipitation of ferrihydrite and other minerals, as determined by extraction analysis and equilibrium modeling, accumulate to create ferricrete mounds. This process removes iron and trace metals from ARD solutions. The concentrated ARD seeps negatively impact the water quality in receiving streams, but are quickly diluted by the primary stream flow and/or storm events. This is evident by low flow volumes having high concentrations, and high flow volumes having low concentrations. The combination of precipitation and dilution is observed to restore the water quality of one stream within 12 kilometers." @default.
- W2321524882 created "2016-06-24" @default.
- W2321524882 creator A5013726499 @default.
- W2321524882 creator A5034820405 @default.
- W2321524882 creator A5042608588 @default.
- W2321524882 date "1996-01-01" @default.
- W2321524882 modified "2023-09-26" @default.
- W2321524882 title "A Comparison Of Natural Acid Rock Drainage Occurrences In Colorado" @default.
- W2321524882 doi "https://doi.org/10.3997/2214-4609-pdb.205.1996_033" @default.
- W2321524882 hasPublicationYear "1996" @default.
- W2321524882 type Work @default.
- W2321524882 sameAs 2321524882 @default.
- W2321524882 citedByCount "2" @default.
- W2321524882 crossrefType "proceedings-article" @default.
- W2321524882 hasAuthorship W2321524882A5013726499 @default.
- W2321524882 hasAuthorship W2321524882A5034820405 @default.
- W2321524882 hasAuthorship W2321524882A5042608588 @default.
- W2321524882 hasConcept C107054158 @default.
- W2321524882 hasConcept C107872376 @default.
- W2321524882 hasConcept C126645576 @default.
- W2321524882 hasConcept C127313418 @default.
- W2321524882 hasConcept C153294291 @default.
- W2321524882 hasConcept C17409809 @default.
- W2321524882 hasConcept C185592680 @default.
- W2321524882 hasConcept C187320778 @default.
- W2321524882 hasConcept C18903297 @default.
- W2321524882 hasConcept C199289684 @default.
- W2321524882 hasConcept C205649164 @default.
- W2321524882 hasConcept C2779889824 @default.
- W2321524882 hasConcept C2780797713 @default.
- W2321524882 hasConcept C31258907 @default.
- W2321524882 hasConcept C40724407 @default.
- W2321524882 hasConcept C41008148 @default.
- W2321524882 hasConcept C42090638 @default.
- W2321524882 hasConcept C58640448 @default.
- W2321524882 hasConcept C67592535 @default.
- W2321524882 hasConcept C76886044 @default.
- W2321524882 hasConcept C86803240 @default.
- W2321524882 hasConceptScore W2321524882C107054158 @default.
- W2321524882 hasConceptScore W2321524882C107872376 @default.
- W2321524882 hasConceptScore W2321524882C126645576 @default.
- W2321524882 hasConceptScore W2321524882C127313418 @default.
- W2321524882 hasConceptScore W2321524882C153294291 @default.
- W2321524882 hasConceptScore W2321524882C17409809 @default.
- W2321524882 hasConceptScore W2321524882C185592680 @default.
- W2321524882 hasConceptScore W2321524882C187320778 @default.
- W2321524882 hasConceptScore W2321524882C18903297 @default.
- W2321524882 hasConceptScore W2321524882C199289684 @default.
- W2321524882 hasConceptScore W2321524882C205649164 @default.
- W2321524882 hasConceptScore W2321524882C2779889824 @default.
- W2321524882 hasConceptScore W2321524882C2780797713 @default.
- W2321524882 hasConceptScore W2321524882C31258907 @default.
- W2321524882 hasConceptScore W2321524882C40724407 @default.
- W2321524882 hasConceptScore W2321524882C41008148 @default.
- W2321524882 hasConceptScore W2321524882C42090638 @default.
- W2321524882 hasConceptScore W2321524882C58640448 @default.
- W2321524882 hasConceptScore W2321524882C67592535 @default.
- W2321524882 hasConceptScore W2321524882C76886044 @default.
- W2321524882 hasConceptScore W2321524882C86803240 @default.
- W2321524882 hasLocation W23215248821 @default.
- W2321524882 hasOpenAccess W2321524882 @default.
- W2321524882 hasPrimaryLocation W23215248821 @default.
- W2321524882 hasRelatedWork W1513625515 @default.
- W2321524882 hasRelatedWork W192173910 @default.
- W2321524882 hasRelatedWork W1991539747 @default.
- W2321524882 hasRelatedWork W2004783272 @default.
- W2321524882 hasRelatedWork W2028511165 @default.
- W2321524882 hasRelatedWork W2044701592 @default.
- W2321524882 hasRelatedWork W2065599467 @default.
- W2321524882 hasRelatedWork W2072176722 @default.
- W2321524882 hasRelatedWork W2096470883 @default.
- W2321524882 hasRelatedWork W2284232305 @default.
- W2321524882 hasRelatedWork W2742368945 @default.
- W2321524882 hasRelatedWork W2803415327 @default.
- W2321524882 hasRelatedWork W2893009116 @default.
- W2321524882 hasRelatedWork W2904723628 @default.
- W2321524882 hasRelatedWork W2908363393 @default.
- W2321524882 hasRelatedWork W2921956399 @default.
- W2321524882 hasRelatedWork W3034324411 @default.
- W2321524882 hasRelatedWork W3081696346 @default.
- W2321524882 hasRelatedWork W762210639 @default.
- W2321524882 hasRelatedWork W2492870254 @default.
- W2321524882 isParatext "false" @default.
- W2321524882 isRetracted "false" @default.
- W2321524882 magId "2321524882" @default.
- W2321524882 workType "article" @default.