/channels/news_feeds/all/term/sulfide%20ore/rss en /channels/channels/news/mining-ancient-ores-clues-early-life-219461 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>An analysis of sulfide ore deposits from one of the world’s richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate in the ocean and influencing seawater chemistry during that geological time period.</p></div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/wing_natgeo_photo2012.jpeg?itok=nvr96tVM" width="160" height="207" alt="" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">Published: </span><span class="day">10 </span><span class="month">December </span><span class="year">2012</span></div></div></div></div></div> Mon, 10 Dec 2012 17:48:24 +0000 webfull 89223 at /channels