文章基本信息

标题：Oceanic protection of prebiotic organic compounds from UV radiation
本地全文：下载
作者：H. James Cleaves ; Stanley L. Miller
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1998
卷号：95
期号：13
页码：7260-7263
DOI：10.1073/pnas.95.13.7260
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：It is frequently stated that UV light would cause massive destruction of prebiotic organic compounds because of the absence of an ozone layer. The elevated UV flux of the early sun compounds this problem. This applies to organic compounds of both terrestrial and extraterrestrial origin. Attempts to deal with this problem generally involve atmospheric absorbers. We show here that prebiotic organic polymers as well as several inorganic compounds are sufficient to protect oceanic organic molecules from UV degradation. This aqueous protection is in addition to any atmospheric UV absorbers and should be a ubiquitous planetary phenomenon serving to increase the size of planetary habitable zones.