Ontology highlight
ABSTRACT:
SUBMITTER: Wang Y
PROVIDER: S-EPMC4485175 | biostudies-literature | 2015 Jun
REPOSITORIES: biostudies-literature
Wang Yifeng Y Chan Marjorie A MA Merino Enrique E
Scientific reports 20150630
Widespread iron oxide precipitation from groundwater in fine-grained red beds displays various patterns, including nodulation, banding and scallops and fingers. Hematite nodules have been reported also from the Meridiani Planum site on Mars and interpreted as evidence for the ancient presence of water on the red planet. Here we show that such patterns can autonomously emerge from a previously unrecognized Ostwald ripening mechanism and they capture rich information regarding ancient chemical and ...[more]