Ekspedycja IODP 360 : pierwszy etap odwiertu do płaszcza Ziemi

Ciążela, J.; Dick, H. J. B.; Mac-Leod, Ch.; Blum, P.

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Tytuł artykułu

Ekspedycja IODP 360 : pierwszy etap odwiertu do płaszcza Ziemi

Autorzy

Ciążela J. , Dick H. J. B. , Mac-Leod Ch. , Blum P.

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IODP Expedition 360 : first stage of drilling into Earth’s Mantle

Języki publikacji

Abstrakty

The aim of this paper is to provide a report on the IODP expedition 360 to the Polish geoscientific community. Expedition 360 to the Atlantis Bank along the Southwest Indian Ridge was Leg 1 of the SloMo Project. The primary objective of the SloMo Project is to test competing hypotheses on the nature of the Moho at the slow-spreading oceanic lithosphere. Based on a seismic survey and geologic mapping, the Moho beneath Atlantis Bank is believed to represent a serpentinization front, and not an igneous boundary between gabbro andperidotite. Expedition 360 started on November 30,2015 in Colombo (Sri Lanka), and ended on January 30,2015 in Port Louis (Mauritius). Hole U1473A was drilled 790 m through massive gabbro. Core recovery ranges from 44 to 96% towards the bottom of the hole, where excellent drilling conditions occurred. This deepest single-leg basement hole drilled into ocean crust is in overall good condition andcan be re-entered at Leg 2. For the first time, a Polish nominee has been selectedfor the scientific party of an oceanic IODP expedition. The mantle drilling project raised much attention in the Polish media. One hundred rock samples have been collected to investigate in Poland.

Słowa kluczowe

Moho płaszcz skorupa dolna wyprawa 360 IODP Atlantis Bank

Moho mantle lower crust expedition 360 International Ocean Discovery Program IODP Atlantis Bank

Wydawca

Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy

Czasopismo

Przegląd Geologiczny

Rocznik

2016

Tom

Vol. 64, nr 11

Strony

889--895

Opis fizyczny

Bibliogr., 20 poz., rys., wykr.

Twórcy

autor

Ciążela J.

ciazela@amu.edu.pl

Instytut Geologii, Uniwersytet im. Adama Mickiewicza, ul. Bogumiła Krygowskiego 12,61-680 Poznań, Polska
Institut für Mineralogie, Leibniz Universität Hannover, Callinstr. 3, 30167 Hannover, Niemcy

autor

Dick H. J. B.

Department of Geology and Geophysics, Woods Hole Oceanographic Institution, MS #8, McLean Laboratory, Woods Hole MA 02543-1539, USA

autor

Mac-Leod Ch.

Department of Earth Sciences, Cardiff University, PO Box 914, Main College, Park place, Cardiff Wales CF10 3AT, Wielka Brytania

autor

Blum P.

International Ocean Discovery Program, Texas A & M University, 100 Discovery Drive, College Station TX 77845-9547, USA

Bibliografia

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2. BAINES A.G., CHEADLE M.J., DICK H.J.B., SCHEIRERA H., JOHN B.E., KUSZNIR N.J. & MATSUMOTO T. 2003 - Mechanism for generating the anomalous uplift of oceanic core complexes: Atlantis Bank, southwest Indian Ridge. Geology, 31: 1105-1108. Doi:10.1130/G19829.1.
3. BAINES G., CHEADLE M.J., DICK H.J.B., SCHEIRER A.H., JOHN B.E., KUSZNIR N.J. & MATSUMOTO T. 2007 - Evolution of the Southwest Indian ridge from 55°45'E to 62°E: Changes in plate- boundary geometry since 26 Ma. Geochem., Geophys., Geosystems, 8. Doi:10.1029/2006GC001559.
4. BAINES A.G., CHEADLE M.J., JOHN B.E., GRIMES C.B., SCHWARTZ J.J. & WOODEN J.L. 2009 - SHRIMP Pb/U zircon ages constrain gabbroic crustal accretion at Atlantis Bank on the ultraslow- -spreading Southwest Indian Ridge. Earth Planet. Sci. Lett., 287: 540-550. Doi:10.1016/j.epsl.2009.09.002.
5. CANNAT M. 1996 - How thick is the magmatic crust at slow spreading oceanic ridges? Melt Migration in the Axial Lithosphere of Slow Spreading Ridges?: Constraints from Ultramafic and Gabbroic Samples. J. Geophys. Res., 101: 2847-2857.
6. CIAZELA J., KOEPKE J., DICK H.J.B. & MUSZYNSKI A. 2015 - Mantle rock exposures at oceanic core complexes along mid-ocean ridges. Geologos, 4: 207-231. Doi:10.1515/logos-20315-0017.
7. DICK H.J.B., NATLAND J.H., ALT J.C., BACH W., BIDEAU D., GEE J.S., HAGGAS S., HERTOGEN J.G.H., HIRTH G., HOLM P.M., ILDEFONSE B., ITURRINO G.J., JOHN B.E., KELLEYD S., KIKAWA E., KINGDON A., LEROUX P.J., MAEDA J., MEYER P.S., MILLER D.J., NASLUND H.R., NIU Y.L., ROBINSON P.T., SNOW J., STEPHEN R.A., TRIMBY P.W., WORM H.U. & YOSHINOBU A. 2000 - A long in situ section of the lower ocean crust: Results of ODP Leg 176 drilling at the Southwest Indian Ridge. Earth Planet. Sci. Lett., 179: 31-51.
8. DICK H.J.B., NATLAND J.H. & ILDEFONSE B. 2006 - Past and future impact of deep drilling in the Oceanic Crust and Mantle. Oceanography, 19: 72-80.
9. DICK H.J.B., MACLEOD C.J. & BLUM P. 2015 - Southwest Indian Ridge Lower Crust and Moho. The nature of the lower crust and Moho at slower spreading ridges (SloMo-Leg 1). Int. Ocean Drill. Progr. Sci. Prospect., 360.
10. DICK H.J.B., MACLEOD C.J., BLUM P. & THE EXPEDITION 360 SCIENTISTS 2016 - Expedition 360 Preliminary report Southwest Indian Ridge lower crust and Moho The nature of the lower crust and Moho at slower spreading ridges ( SloMo-Leg 1), International Ocean Discovery Program. http://dx.doi.org/10.14379/ iodp.pr.360.2016.
11. JOHN B.E., FOSTER D.A., MURPHY J.M., CHEADLE M.J., BAINES A.G., FANNING C.M. & COPELAND P. 2004 - Determining the cooling history of in situ lower oceanic crust-Atlantis Bank, SW Indian Ridge. Earth Planet. Sci. Lett., 222: 145-160. Doi:10.1016/j.epsl.2004.02.014.
12. KLEIN E.M. 2003 - Geochemistry of the igneous ocean crust. [W:] Rudnick R.L. (red.), Treatise on Geochemistry, tom 3, The Crust. Elsevier, Amsterdam: 433-463. Doi:10.1016/B0-08-043751-6/03030-9.
13. MACLEOD C.J., DICK H.J.B., ALLERTON S., ROBINSON P.T., COOGAN L.A., EDWARDS S.J., GALLEY A., GILLIS K.M., HIRTH G., HUNTER A.G., HUTCHINSON D., KVASSNES A.J. NATLAND J.H., SALISBURY M.H., SCHANDL E.S., STAKES D.S., THOMPSON G.M. & TIVEY M.A. 1998 - Geological mapping of slow-spread lower ocean crust: a deep-towed cideo and wireline rock drilling survey of Atlantis Bank (ODP Site 735, SWIR). InterRidge News, 7: 39-43.
14. MILLER D.J. & CHRISTENSEN N.I. 1997 - Seismic velocities of lower crustal and upper mantle rocks from the slow-spreading ridge, south of the Kane transform zone (MARK). Proc. Ocean Drill. Program, Sci. Results, 153: 437-454.
15. MULLER M.R. 1997 - Thin crust beneath ocean drilling program borehole 735B at the Southwest Indian Ridge? Earth Planet. Sci. Lett., 148: 93-107.
16. NICOLAS A. 1995 - Die ozeanische Rücken. Gebirge unter dem Meer. Springer, Berlin. Doi:10.1017/CBO9781107415324.004.
17. PETTIGREW T.L., CASEY J.F., MILLER D.J. & SHIPBOARD SCIENTIFIC PARTY 1999 - Proceedings of the Ocean Drilling Program, Initial Reports, 179. College Station, TX.
18. ROBINSON P.T., VON HERZEN R. & SHIPBOARD SCIENTIFIC PARTY 1989 - Proceedings of the Ocean Drilling Program, Initial Reports, 118. College Station, TX.
19. SCHWARTZ J.J., JOHN B.E., CHEADLE M.J., WOODEN J.L., MAZDAB F., SWAPP S. & GRIMESC B. 2010 - Dissolution-reprecipitation of igneous zircon in mid-ocean ridge gabbro, Atlantis Bank, Southwest Indian Ridge. Chem. Geol., 274: 68-81. Doi:10.1016/j.chemgeo.2010.03.017.
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Uwagi

Pozostali niewymienieni autorzy artykułu: Naukowcy Ekspedycji 360.

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.

Typ dokumentu

Bibliografia

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