{"id":7632,"date":"2016-06-14T17:21:44","date_gmt":"2016-06-14T17:21:44","guid":{"rendered":"https:\/\/www.darkenergybiosphere.org\/?post_type=publication&#038;p=7618"},"modified":"2016-10-14T19:06:38","modified_gmt":"2016-10-14T19:06:38","slug":"evidence-for-microbial-carbon-and-sulfur-cycling-in-deeply-buried-ridge-flank-basalt","status":"publish","type":"publication","link":"https:\/\/www.darkenergybiosphere.org\/publication\/evidence-for-microbial-carbon-and-sulfur-cycling-in-deeply-buried-ridge-flank-basalt\/","title":{"rendered":"Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt"},"content":{"rendered":"<p id=\"p-4\">Sediment-covered basalt on the flanks of mid-ocean ridges constitutes most of Earth&#8217;s oceanic crust, but the composition and metabolic function of its microbial ecosystem are largely unknown. By drilling into 3.5-million-year-old subseafloor basalt, we demonstrated the presence of methane- and sulfur-cycling microbes on the eastern flank of the Juan de Fuca Ridge. Depth horizons with functional genes indicative of methane-cycling and sulfate-reducing microorganisms are enriched in solid-phase sulfur and total organic carbon, host \u03b4<sup>13<\/sup>C- and \u03b4<sup>34<\/sup>S-isotopic values with a biological imprint, and show clear signs of microbial activity when incubated in the laboratory. Downcore changes in carbon and sulfur cycling show discrete geochemical intervals with chemoautotrophic \u03b4<sup>13<\/sup>C signatures locally attenuated by heterotrophic metabolism.<\/p>\n","protected":false},"template":"","tags":[],"publication_type":[19],"_links":{"self":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/publication\/7632"}],"collection":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/types\/publication"}],"wp:attachment":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/media?parent=7632"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/tags?post=7632"},{"taxonomy":"publication_type","embeddable":true,"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/publication_type?post=7632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}