The Nectarian System, a new lunar time-stratigraphic unit
Journal of Research of the U.S. Geological Survey
By: Desiree Stuart-Alexander and Don E. Wilhelm
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Abstract
Geologic mapping of the limbs and far side of the Moon has demonstrated the desirability of subdividing the pre-Imbrian rocks. A convenient datum is the Janssen Formation, the ejecta blanket of the Nectaris basin. A new system, herein named the Nectarian System, extends from the base of the Janssen Formation up to, but not including, the Fra Mauro Formation, which is the ejecta blanket of the Imbrium basin and the basal unit of the Imbrian System. As all rocks older than the Janssen Formation are informally called pre-Nectarian, the name "pre-Imbrian" is superseded by Nectarian and pre-Nectarian where rocks of these ages can be recognized.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The Nectarian System, a new lunar time-stratigraphic unit |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 3 |
| Issue | 1 |
| Year Published | 1975 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 6 p. |
| First page | 53 |
| Last page | 58 |
| Other Geospatial | Moon |
| Google Analytic Metrics | Metrics page |