[Personnel: Last_Name='ADAMS', Middle_Name='J', First_Name='CHRIS']
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Geological mapping and reconnaissance of the Edward VII Peninsula, Marie Byrd Land Entry ID: K151_1987_1988_NZ_1 |
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Summary
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Abstract:
A field expedition visited all of the rock outcrops in the Edward VII Peninsula, Marie Byrd Land. The principal objective was to undertake geological studies and make collections for future geochronological and geochemical work in New Zealand. The expedition was the first to make complete ground coverage of Edward VII Peninsula and the opportunity was taken to visit all the peaks and scraps in the Rockefeller and Alexandra Mountains to have a comprehensive overview of the geology of the region. The journey was made in two stages; a relatively long (300km) northward loop from a central put in site to visit the rather dispersed peaks of the Alexandra Mountains and then a shorter (150km) southward loop having a more concentrated look at the Rockefeller Mountains. All rock outcrops in the Alexandra and Rockefeller Mountains were mapped and despite some steep and icy scarp slopes, all but one rock mass (Mt Manger) was visited. In total, over 250 rocks were collected for laboratory studies. Field observations on the major rock types were recorded, including i) unfoliated granitoids varying from leucogranite to biotite-granodiorite, ii) low grade metasediments, mainly weakly foliated metagreywacke/slate and iii) heterogenous paragneiss (and some orthogneiss) of high metamorphic grade. A revision and extension of the geological map of the area was conducted and comprehensive rock collections were analysed for petrographic descriptions, potassium-argon (K-Ar) and rubidium-strontium (Rb-Sr) dating and geochemical (XRF) analysis.
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Description: GNS Science PETLAB database to locate rock samples. Search under Collector = SD Weaver and Country = Antarctica. |
Geographic Coverage
| N: -77.0 | S: -78.5 | E: -150.0 | W: -160.0 |
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Temporal Coverage
| Start Date: 1988-01-01 |
| Stop Date: 1989-11-28 |
Location Keywords
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CONTINENT
> ANTARCTICA
CONTINENT > ANTARCTICA > MARIE BYRD LAND GEOGRAPHIC REGION > POLAR |
Science Keywords
| SOLID EARTH >GEOMORPHIC LANDFORMS/PROCESSES >TECTONIC LANDFORMS [Definition] |
| SOLID EARTH >ROCKS/MINERALS/CRYSTALS >AGE DETERMINATIONS [Definition] |
| SOLID EARTH >ROCKS/MINERALS/CRYSTALS >IGNEOUS ROCKS [Definition] |
| SOLID EARTH >TECTONICS >PLATE TECTONICS >STRATIGRAPHIC SEQUENCE [Definition] |
ISO Topic Category
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GEOSCIENTIFIC INFORMATION
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Platform
| GROUND-BASED OBSERVATIONS [Information] |
| LABORATORY [Information] |
| FIELD INVESTIGATION [Information] |
Instrument
| VISUAL OBSERVATIONS [Information] |
Quality
| The Science reports submitted to Antarctica New Zealand contains a list of samples collected including INS No., Field No., Sample details, Location, Lat/Long, Altitude (m), cross ref to S. Weaver Collection in PETLAB. All results are in the publications. Please contact the investigators for more information. |
Keywords
| Hand Samples |
Data Set Progress
| COMPLETE |
Data Center
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Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
[Information]
Data Center URL: http://www.antarcticanz.govt.nz/
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Personnel
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STEVE
WEAVER Role: INVESTIGATOR Phone: +64 3 364 2987 Ext 3304 Fax: +64 3 364 2769 Email: steve.weaver at canterbury.ac.nz Contact Address: Department of Geology University of Canterbury Private Bag 4800 City: Christchurch Country: New Zealand |
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CHRIS
J
ADAMS Role: INVESTIGATOR Phone: +64 3 479 9671 Fax: +64 3 477 5232 Email: c.adams at gns.cri.nz Contact Address: GNS Science Private Bag 1930 City: Dunedin Postal Code: 9054 Country: New Zealand |
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CEISHA
POIROT Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: c.poirot at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand |
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SHULAMIT
GORDON Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: s.gordon at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand |
Publications/References
Weaver, S.D. Adams, C.J. Pankhurst, R.J. Gibson, I.L. 1992 Granites of Edward VII Peninsula, Marie Byrd Land: anorogenic magmatism related to Antarctic-New Zealand rifting. Proceedings of the 2nd Hutton Symposium on the Origin of Granites and Related Rocks, Canberra, 23-28 Sep. 1991. Brown, P.E., Chappell, B.W. (eds), Boulder, CO Geological Society of America
Adams, C.J. Broady, P. Cleary, P.J. Weaver, S.D. 1989 Geological and biological expedition to Edward VII Peninsula, Marie Byrd Land, West Antarctica - 1987/88 : field observations and initial results. New Zealand Antarctic record 9(2): 4-33
Adams, C.J. Weaver, S.D. 1990 Age and correlation of metamorphic basement in Edward VII Peninsula, Marie Byrd Land, West Antarctica, and correlation with northern Victoria Land and southern New Zealand. Zentralblatt für geologie und paläontologie 1(1/2): 75-86
Adams, C.J. Seward, D. Weaver, S.D. 1995 Geochronology of Cretaceous granites and metasedimentary basement on Edward VII Peninsula, Marie Byrd Land, West Antarctica. Antarctic science 7(3): 265-276
Adams, C.J. Broady, P. Cleary, P.J. Weaver, S.D. 1989 Geological and biological expedition to Edward VII Peninsula, Marie Byrd Land, West Antarctica - 1987/88 : field observations and initial results. New Zealand Antarctic record 9(2): 4-33
Adams, C.J. Weaver, S.D. 1990 Age and correlation of metamorphic basement in Edward VII Peninsula, Marie Byrd Land, West Antarctica, and correlation with northern Victoria Land and southern New Zealand. Zentralblatt für geologie und paläontologie 1(1/2): 75-86
Adams, C.J. Seward, D. Weaver, S.D. 1995 Geochronology of Cretaceous granites and metasedimentary basement on Edward VII Peninsula, Marie Byrd Land, West Antarctica. Antarctic science 7(3): 265-276
Creation and Review Dates
DIF Creation Date:
2009-06-19
Last DIF Revision Date:
2009-06-22
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