Object # PRR-39586: Rock Sample
| Primary Field # | KH2D |
| IGSN # | PRR039586 |
| Kind of Object | Rock Sample |
| Rock Type | Igneous |
| Rock Name | Granodiorite |
| Sample Description | [fresh sample 211g, heated cores 181g] Homogeneous medium to coarse grained biotite + hornblende granodiorite. More evolved than Siglin Rocks. Xenoliths are biotite rich metasedimentary (unlike Siglin Rocks). Outcrop is long ridge being undercut by glacier. On ridge between main hills. |
| Weight | 392 g |
| Susceptibility | 197 x10-5 SI units |
| General Notes | BAS location #MB 356. 27 cores collected from 4 sites by Grunow and 3 hand samples from an additional site by Weaver in medium to coarse grained granodiorite. 101 +-4 Ma, K-Ar biotite |
| Continent | Antarctica |
| Region | Marie Byrd Land |
| Mountain Range/Island Group | Walgreen Coast |
| Mountain/Island Name | Wunneburger Rocks |
| Coordinates | -74.710, -113.180 (74° 42.6' S, 113° 10.8' W) |
| Positioning Method | Notes |
| Era | Mesozoic |
| Period | Cretaceous |
| Additional Material | Reference |
| Data Sources | Ph.D Thesis Typed Notes |
| Date Collected | 1992-02-23 |
| Field Year Collected | 1992 |
| Collector | Grunow, Anne M. |
| Donor | Kent, Dennis V. |
| References | DiVenere, V. (1995). Paleomagnetic results from Marie Byrd Land, West Antarctica; tectonic implications for West Antarctica and the Atlantic-Pacific Plate circuit, Columbia University, Ph.D thesis, 211p |
If you would like a 3D scan of this sample, please contact the Curator.
Cite as:
The Polar Rock Repository (PRR), Byrd Polar and Climate Research Center (BPCRC), Ohio State University: Polar rock and dredge samples available for research and educational use from the PRR.
doi:10.7289/V5RF5S18 [date of access]
