AMERICAN JOURNAL OF SCIENCE

《美国科学杂志》(American Journal of Science, AJS)由本杰明·西利曼(Benjamin Silliman)于1818年创办，是美国历史最悠久的连续出版的科学杂志。该杂志致力于地质学和相关科学，并发表来自世界各地的文章，介绍所有地球科学的主要研究成果。读者主要是学术界和政府机构的地球科学家。2015年，AJS的影响因子为3.566,5年的影响因子为4.217，在所有发表新内容的同行评议的地球科学期刊中排名接近榜首。AJS中的文章往往被引用多年，导致引用半衰期超过10年(所有统计数据均来自Thomson ISI)。

The American Journal of Science (AJS), founded in 1818 by Benjamin Silliman, is the oldest scientific journal in the United States that has been published continuously. The Journal is devoted to geology and related sciences and publishes articles from around the world presenting results of major research from all earth sciences. Readers are primarily earth scientists in academia and government institutions. AJS had an impact factor of 3.566 and a five year impact factor of 4.217 for 2015, ranking near the top for all peer-reviewed earth sciences journals publishing new content. Articles in AJS tend to be cited for many years, resulting in a citation half-life that exceeds 10 years (all statistics from Thomson ISI).