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3.5-Ga hydrothermal fields and diamictites in the Barberton Greenstone Belt—Paleoarchean crust in cold environments
Estimates of ocean temperatures on Earth 3.5 billion years ago (Ga) range between 26° and 85°C. We present new data from 3.47- to 3.43-Ga volcanic rocks and cherts in South Africa suggesting that these temperatures reflect mixing of hot hydrothermal fluids with cold marine and terrestrial waters. We...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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American Association for the Advancement of Science
2016
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4771442/ https://www.ncbi.nlm.nih.gov/pubmed/26933677 http://dx.doi.org/10.1126/sciadv.1500368 |