Abstract:
Despite the important tectonic and stratigraphic setting, rocks from the English Coast area remain largely unstudied, as the paucity of exposure has hindered detailed structural and sedimentological analysis. Samples were collected for zircon analysis following a traverse starting at the English Coast and ending at Sky-Blu. A total of around 250kg of rock were collected and rocks at Fitzgerald Bluffs were revisited and sampled for the first time in 25 years. Highlights included the recognition of a previously undiscovered granitoid body and the discovery of fossils that tentatively indicate that Permian rocks are more widespread in the region.
Keywords:
Ellsworth Land, English Coast, mineral seperates, zircon analysis
| Access Constraints: | Requests for data can be made via the UK Polar Data Centre (UK PDC) at BAS. |
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| Creation Date: | 2012-02-23 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr I Millar |
| Role(s) | Investigator |
| Organisation | British Geological Survey |
| Name | Dr Alan P M Vaughan |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Flowerdew M.J., Millar, I.L., Vaughan, A.P.M., Horstwood, M.S.A. & Fanning, C.M. The source of granitic gneisses and migmatites in the Antarctic Peninsula: a combined U-Pb SHRIMP and laser-ablation Hf isotope study of complex zircons. Contributions to Mineralogy and Petrology 151(6) 751-768 Flowerdew, M.F., Millar, I.L., & Vaughan, A.P.M. A combined U-Pb zircon geochronology and Hf isotope geochemistry study of detrital zircons: sedimentary provenance from West Antarctica. In: Proceedings, Frontiers and Opportunities in Antarctic Earth Sciences. Terra Antartica Reports 12 57-64 Flowerdew M.J., Millar, I.L., Curtis, M.L., Vaughan, A.P.M., Horstwood, M.S.A., Whitehouse, M.J. & Fanning, C.M. Combined U-Pb geochronology and Hf isotope geochemistry of detrital zircons from Early Palaeozoic sediments, Ellsworth Whitmore Mountains Block, Antarctica. Bulletin of the Geological Society of America 119(3) 275-288 Flowerdew, M.J., Millar, I.L., Vaughan, A.P.M. & Pankhurst, R.J. 2005. Age and tectonic significance of the Lassiter Coast Intrusive Suite, Eastern Ellsworth Land, Antarctic Peninsula. Antarctic Science, 17, 443-452 Hunter, M.A., Cantrill, D.J., Flowerdew, M.J. & Millar, I.L. 2005. Middle Jurassic age for the Botany Bay Group: implications for Weddell Sea Basin creation and southern hemisphere biostratigraphy. Journal of the Geological Society, London, 162, 745-748 Flowerdew, M.J., Millar, I.L., Vaughan, A.P.M., Fanning, C.M. & Horstwood, M., Fanning, C.M. 2003. Provenance and tectonic setting of Pre-Jurassic rocks at the English Coast, eastern Ellsworth Land, Terra Nostra, 2003, 105 Project ref: AFI 03/13 - Determining the origin of exotic crustal fragments on the Gondwana margin using Hf-isotope techniques |
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| Lineage: | ||
| Temporal Coverage: | |
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| Start Date | 2002-12-01 |
| End Date | 2003-03-31 |
| Paleo Temporal Coverage: | |
| Paleo Start Date | ~106Ma |
| Paleo End Date | ~104Ma |
| Chronostratigraphic Unit | CRETACEOUS |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -74.85 |
| Northernmost | -73.5 |
| Longitude | |
| Westernmost | -77.33 |
| Easternmost | -71.57 |
| Altitude | |
| Min Altitude | 200m |
| Max Altitude | 1450m |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Ellsworth Land |
| Source(s): |
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| Data Collection: | Rock samples, rock powders, and mineral separates were collected over a wide geographical region within eastern Ellsworth Land. |
| Distribution: | |
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| Distribution Media | N/A |
| Distribution Size | ~250kg of rock samples |
| Distribution Format | N/A |
| Fees | See Natural Environment Research Council (NERC) Data Policy |
| Data Storage: | Samples are archived in the BAS rock store |