| Title | GPR reflection profiles of sedimentary deposits in lower Taylor Valley, Antarctica |
| Author | Arcone, S.A.; Prentice, M.; Horsman, J. |
| Author Affil | Arcone, S.A., U. S. Army Cold Regions Research and Engineering Laboratory, Hanover, NH. Other: U. S. Geological Survey; Plymouth State University |
| Source | International Conference on Ground Penetrating Radar, Vol.12, unpaginated; Twelfth international conference on Ground penetrating radar, Birmingham, United Kingdom, June 15-19, 2008, chaired by C. Rogers and R.J. Chignell. Publisher: [varies], [location varies], International. CRREL Report No: ERDC/CRREL MP-09- 7294 |
| Publication Date | 2008 |
| Notes | In English. 7 refs. Ant. Acc. No: 87337. GeoRef Acc. No: 296690 |
| Index Terms | geomorphology; profiles; geophysical surveys; ground ice; ice; ice cover; ice sheets; landforms; radar; surveys; Antarctica- -McMurdo dry valleys; Taylor Valley; Antarctica; eskers; fluvial features; geophysical methods; geophysical profiles; glacial features; ground-penetrating radar; ice cover distribution; lacustrine features; lithostratigraphy; McMurdo dry valleys; moraines; radar methods; reflection methods; Victoria Land |
| Abstract | Landforms within lower Taylor Valley of the dry valleys of Antarctica have been hypothesized to be either glacial deposits such as eskers and moraines, or deposits unique to polar glacial lakes such as dumped, ice-rafted debris. In either case, they appear to have formed at least 10,000 years before present when an ice sheet that spread across the Ross Sea intruded the valley. We discuss a few of many 85- and 300-MHz GPR profiles we obtained to test these landform hypotheses. The landforms lie near the 80-m elevation contour, which appears to us to define at least one persistent lake level. (mod. auth. abst.) |
| Publication Type | conference paper or compendium article |
| Record ID | 64001147 |