Object # PRR-16284: Rock Sample
| Primary Field # | B2B |
| IGSN # | PRR016284 |
| Kind of Object | Rock Sample |
| Rock Type | Igneous |
| Rock Name | Andesite |
| Sample Description | Plug, Oriented paleomagnetic samples |
| Weight | 108 g |
| Susceptibility | 5628 x10-5 SI units |
| General Notes | Chester Cone and Usnea Plug - hornblende phenocrysts, andesitic plugs. No obvious faulting. ASPA-126 (Antarctic Specially Protected Area) |
| Continent | Antarctica |
| Region | Antarctic Peninsula |
| Mountain Range/Island Group | South Shetland Islands |
| Mountain/Island Name | Livingston Island |
| Other Feature Name(s) | Chester Cone Byers Peninsula |
| Precise Location | Chester Cone, southwest side facing Unsea Plug |
| Coordinates | -62.633, -61.083 (62° 38' S, 61° 5' W) |
| Positioning Method | Geographic Name |
| Era | Mesozoic |
| Period | Cretaceous |
| Analyses | Paleomagnetism |
| Additional Material | Reference Paleomagnetic Cores |
| Primary Field Logistics | Ship |
| Secondary Field Logistics | Foot traverse |
| Field Logistics Notes | Designated Antarctic Specially Protected Area No. 126 |
| Data Sources | Field Notebook Publication |
| Date Collected | 1990-12-02 |
| Field Year Collected | 1990 |
| Collector | Grunow, Anne M. |
| Donor | Grunow, Anne M. |
| Coring Device | Paleomagnetic Rock Drill |
| Polarity | N |
| Magnetic Sample Form | paleomagnetic core |
| NRM Declination | 17.8 |
| NRM Inclination | -62.2 |
| a95 | 9.1 |
| Number of Measured Samples | 6 |
| Cleaned Sample Declination | 6.5 |
| Cleaned Sample Inclination | -65.5 |
| Cleaned a95 | 7.1 |
| Number of Cleaned Samples | 5 |
| Primary Magnetic Carrier | Magnetite |
| NRM Intensity x10-2 A/m | 68.335 |
| References | Grunow, A. M. (1993), New paleomagnetic data from the Antarctic Peninsula and their tectonic implications, J. Geophys. Res., 98(B8), 13815–13833, doi:10.1029/93JB01089. |
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]
