Ontology highlight
ABSTRACT:
SUBMITTER: Bradley JP
PROVIDER: S-EPMC3918814 | biostudies-other | 2014 Feb
REPOSITORIES: biostudies-other
Bradley John P JP Ishii Hope A HA Gillis-Davis Jeffrey J JJ Ciston James J Nielsen Michael H MH Bechtel Hans A HA Martin Michael C MC
Proceedings of the National Academy of Sciences of the United States of America 20140121 5
The solar wind (SW), composed of predominantly ∼1-keV H(+) ions, produces amorphous rims up to ∼150 nm thick on the surfaces of minerals exposed in space. Silicates with amorphous rims are observed on interplanetary dust particles and on lunar and asteroid soil regolith grains. Implanted H(+) may react with oxygen in the minerals to form trace amounts of hydroxyl (-OH) and/or water (H2O). Previous studies have detected hydroxyl in lunar soils, but its chemical state, physical location in the soi ...[more]