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Press Release 11-182
Evidence for Iron-Rich Ancient Ocean Changes View of Earth's Early History

Discovery challenges previous models for environment in which early life evolved

Back to article | Note about images

Photo of geologists digging into a shale exposure in north China.

Geologists Chris Reinhard (front) and Noah Planavsky dig into a shale exposure in north China.

Credit: Chu Research Group, Chinese Academy of Sciences


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Photo of a resort north of Beijing, China, and surrounding hills which were source of shale samples.

Hills surrounding a resort north of Beijing, China, were a source of shale samples for the study.

Credit: Chu Research Group, Chinese Academy of Sciences


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Photo of researcher Noah Planavsky on a black shale exposure in China.

Researcher Noah Planavsky, in quest of samples, hangs tight on a black shale exposure in China.

Credit: Chu Research Group, Chinese Academy of Sciences


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Photo of scientists collecting unweathered samples along a narrow road north of Beijing.

Scientists find unweathered samples of ancient oceans along a narrow road north of Beijing.

Credit: Chu Research Group


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Photo of scientists who are collecting shale samples in China.

Scientists Chu, Li, Love, Rinhard, Planavsky and Lyons while collecting samples in China.

Credit: Chu Research Group, Chinese Academy of Sciences


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Photo of drill core of shales and siltstones where brown layers are indicative of iron-rich ocean.

Drill core of shales and siltstones. The brown layers are a tell-tale sign of an iron-rich ancient ocean.

Credit: Peter McGoldrick, University of Tasmania


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