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Chemical Gardens as Flow-through Reactors Simulating Natural Hydrothermal Systems.
Barge, Laura M; Abedian, Yeghegis; Doloboff, Ivria J; Nuñez, Jessica E; Russell, Michael J; Kidd, Richard D; Kanik, Isik.
Afiliación
  • Barge LM; NASA Jet Propulsion Laboratory, California Institute of Technology; NASA Astrobiology Institute, Icy Worlds; Blue Marble Space Institute of Science; Laura.M.Barge@jpl.nasa.gov.
  • Abedian Y; NASA Jet Propulsion Laboratory, California Institute of Technology; NASA Astrobiology Institute, Icy Worlds.
  • Doloboff IJ; NASA Jet Propulsion Laboratory, California Institute of Technology; NASA Astrobiology Institute, Icy Worlds.
  • Nuñez JE; NASA Jet Propulsion Laboratory, California Institute of Technology; Blue Marble Space Institute of Science; Citrus College.
  • Russell MJ; NASA Jet Propulsion Laboratory, California Institute of Technology; NASA Astrobiology Institute, Icy Worlds.
  • Kidd RD; NASA Jet Propulsion Laboratory, California Institute of Technology.
  • Kanik I; NASA Jet Propulsion Laboratory, California Institute of Technology; NASA Astrobiology Institute, Icy Worlds.
J Vis Exp ; (105)2015 Nov 18.
Article en En | MEDLINE | ID: mdl-26650915
Here we report experimental simulations of hydrothermal chimney growth using injection chemical garden methods. The versatility of this type of experiment allows for testing of various proposed ocean / hydrothermal fluid chemistries that could have driven reactions toward the origin of life in environments on the early Earth, early Mars, or even other worlds such as the icy moons of the outer planets. We show experiments that include growth of chemical garden structures under anoxic conditions simulating the early Earth, inclusion of trace components of phosphates / organics in the injection solution to incorporate them into the structure, a switch of the injection solution to introduce a secondary precipitating anion, and the measurement of membrane potentials generated by chemical gardens. Using this method, self-assembling chemical garden structures were formed that mimic the natural chimneys precipitated at submarine hydrothermal springs, and these precipitates can be used successfully as flow-through reactors by feeding through multiple successive "hydrothermal" injections.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Vis Exp Año: 2015 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Vis Exp Año: 2015 Tipo del documento: Article Pais de publicación: Estados Unidos