{"id":487,"date":"2015-12-28T02:09:28","date_gmt":"2015-12-28T02:09:28","guid":{"rendered":"http:\/\/192.168.99.100:8080\/award\/biologically-induced-methane-oxidation-and-precipitation-of-carbonate-minerals-an-experimental-study\/"},"modified":"2019-04-01T13:39:37","modified_gmt":"2019-04-01T20:39:37","slug":"biologically-induced-methane-oxidation-and-precipitation-of-carbonate-minerals-an-experimental-study","status":"publish","type":"award","link":"https:\/\/www.darkenergybiosphere.org\/award\/biologically-induced-methane-oxidation-and-precipitation-of-carbonate-minerals-an-experimental-study\/","title":{"rendered":"Biologically induced methane oxidation and precipitation of carbonate minerals: An experimental study"},"content":{"rendered":"<p>Biologically-mediated CaCO<sub>3<\/sub> precipitation widely occurs in aquatic systems and is often directly linked to the metabolic activity of microorganisms, which could significantly affect the local environment. An example is oxidation of methane and reduction of sulfate mediated by a consortium of Bacteria and Archaea. In order to investigate geochemistry of CaCO<sub>3<\/sub> precipitated abiotically and under microbial activity experimental work was initiated. \u00a0The abiotic experiments were performed at different temperatures and pressures (nitrogen and nitrogen-methane mixture). \u00a0Further geochemical analyses will allow evaluating of the effect of total pressure and methane partial pressure on the geochemistry of CaCO<sub>3<\/sub>. Sulfate reducing bacterial (<em>Desulfovibrio salexigens<\/em>) was successfully cultured and precipitation experiments on microbially mediated CaCO<sub>3<\/sub> are in progress. This work is relevant to C-DEBI Research Theme I (Activity in the Deep Subseafloor Biosphere: function &amp; rates of global biogeochemical processes) because carbonate growth rate is linked to microbial activity and the rate of methane oxidation.<\/p>\n","protected":false},"template":"","meta":[],"award_type":[14],"_links":{"self":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/awards\/487"}],"collection":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/awards"}],"about":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/types\/award"}],"wp:attachment":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/media?parent=487"}],"wp:term":[{"taxonomy":"award_type","embeddable":true,"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/award_type?post=487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}