Essays about: "Geochemical Flows"

Found 5 essays containing the words Geochemical Flows.

  1. 1. Distribution and mobilization of heavy metals at an acid mine drainage-affected region, South China

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Chen Luo; [2020]
    Keywords : acid mine drainage; arsenic; cadmium; geochemical modeling; heavy metals; lead; principal component analysis;

    Abstract : Dabaoshan Mine Site (DMS) is the biggest polymetallic mine in South China. The Hengshi River receives acid mine drain (AMD) waste leaching from the tailings pond and run-off from the treatment plant which flows into the Wengjiang River, Beijiang River, before discharging into the Pearl River. READ MORE

  3. 2. Phosphorus Balance of Sweden

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Karl Anders Wikberg; [2019]
    Keywords : Phosphorus; Material Flow Analysis; Sweden; Sustainable Resource Management; Geochemical Flows; Fosfor; Materialflödesanalys; Sverige; Hållbar Resurshantering; Geokemiska Flöden;

    Abstract : Phosphorus (P) is an essential element for all life on our planet. During the past century anthropogenic consumption of P has reached critically unsustainable levels, the mining of finite phosphate rock and the dispersion of this resource could lead to resource scarcity in the future. READ MORE

  4. 3. Concentrations and riverine massflows of geothermal arsenic. : Case study: Jemez River, NM, USA

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Lina Hansson; [2016]
    Keywords : arsenic; speciation; river discharge; fault;

    Abstract : Geothermal arsenic (As) and its inorganic species transformation in river systems are of global concern, since As has a potential negative impact on human health and ecosystems. Periods of increased precipitation may change As concentrations and As partitioning in streams, due to elevated water tables, increased runoff generation, dilution, and interactions with sediment. READ MORE

  5. 4. Numerical Model of a Fossil Hydrothermal System in the Southern East Pacific Rise Exposed at Pito Deep

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Páll Björgúlfsson; [2012]
    Keywords : Hydrogeology; Pito Deep; Numerical Model; Hydrothermal System;

    Abstract : The Mid Ocean Ridge system with its volcanism and related hydrothermal activity has been a subject for many studies since the discovery of high temperature hydrothermal vents at the ridge surfaces in the 1970´s. This thesis focuses on deep sea hydrothermal activity on a superfast spreading ridge, the SouthernEast Pacific Rise (SEPR). READ MORE

  6. 5. The geology of the Portobello Peninsula : proposal of a saturated to oversaturated lineage within the Dunedin Volcano, New Zealand

    University essay from Lunds universitet/Geologiska institutionen

    Author : Stefan Olsson; [2002]
    Keywords : geografi; geologi; Portobello Peninsula; Dunedin Volcano; New Zealand; saturated lineage; oversaturated lineage; Earth and Environmental Sciences;

    Abstract : The Portobello Peninsula is made up by volcanic sediments, lava flows and numerous dikes. Deposition of sediments and lava flows is thought be early in the evolution of the Dunedin Volcano. READ MORE