Petrology and sedimentology of the Horlick Formation (Lower Devonian), Ohio Range, Transantarctic Mountains
Bulletin
1780
By: Lucy McCartan and Margaret A. Bradshaw
Links
- Document: Report (pdf)
- Download citation as: RIS | Dublin Core
Abstract
The Horlick Formation of Early Devonian age is as thick as 50 m and consists of subhorizontal, interbedded subarkosic sandstone and chloritic shale and mudstone. The Horlick overlies an erosion surface cut into Ordovician granitic rocks and is, in turn, overlain by Carboniferous and Permian glacial and periglacial deposits. Textures, sedimentary structures, and ubiquitous marine body fossils and animal traces suggest that the Horlick was deposited on a shallow shelf having moderate wave energy and a moderate tidal range. The source terrane probably lay to the north, and longshore transport was toward the west.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Petrology and sedimentology of the Horlick Formation (Lower Devonian), Ohio Range, Transantarctic Mountains |
| Series title | Bulletin |
| Series number | 1780 |
| DOI | 10.3133/b1780 |
| Year Published | 1987 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | iv, 31 p. |
| Other Geospatial | Antarctica, Ohio Range |
| Google Analytic Metrics | Metrics page |