ZHANG Guoliang. Compositional and temperature variations of the Pacific upper mantle since the Cretaceous[J]. Acta Oceanologica Sinica, 2016, 35(4): 19-25. doi: 10.1007/s13131-016-0839-4
Citation: ZHANG Guoliang. Compositional and temperature variations of the Pacific upper mantle since the Cretaceous[J]. Acta Oceanologica Sinica, 2016, 35(4): 19-25. doi: 10.1007/s13131-016-0839-4

Compositional and temperature variations of the Pacific upper mantle since the Cretaceous

doi: 10.1007/s13131-016-0839-4
  • Received Date: 2014-12-03
  • Rev Recd Date: 2015-07-02
  • The geological evolution of the Earth during the mid-Cretaceous were shown to be anomalous, e.g., the pause of the geomagnetic field, the global sea level rise, and increased intra-plate volcanic activities, which could be attributed to deep mantle processes. As the anomalous volcanic activities occurred mainly in the Cretaceous Pacific, here we use basalt chemical compositions from the oceanic drilling(DSDP/ODP/IODP) sites to investigate their mantle sources and melting conditions. Based on locations relative to the Pacific plateaus, we classified these sites as oceanic plateau basalts, normal mid-ocean ridge basalts, and near-plateau seafloor basalts. This study shows that those normal mid-ocean ridge basalts formed during mid-Cretaceous are broadly similar in average Na8, La/Sm and Sm/Yb ratios and Sr-Nd isotopic compositions to modern Pacific spreading ridge(the East Pacific Rise). The Ontong Java plateau(125-90 Ma) basalts have distinctly lower Na8 and 143Nd/144Nd, and higher La/Sm and 87Sr/86Sr than normal seafloor basalts, whereas those for the near-plateau seafloor basalts are similar to the plateau basalts, indicating influences from the Ontong Java mantle source. The super mantle plume activity that might have formed the Ontong Java plateau influenced the mantle source of the simultaneously formed large areas of seafloor basalts. Based on the chemical data from normal seafloor basalts, I propose that the mantle compositions and melting conditions of the normal mid-ocean ridges during the Cretaceous are similar to the fast spreading East Pacific Rise. Slight variations of mid-Cretaceous normal seafloor basalts in melting conditions could be related to the local mantle source and spreading rate.
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  • Bartolini A, Larson R L. 2001. Pacific microplate and the Pangea su-percontinent in the Early to Middle Jurassic. Geology, 29(8):735-738
    Castillo P R, Lonsdale P F, Moran C L, et al. 2009. Geochemistry of mid-Cretaceous Pacific crust being subducted along the Tonga-Kermadec Trench:Implications for the generation of arc lavas. Lithos, 112(1-2):87-102
    Castillo P R, Pringle M S, Carlson R W. 1994. East Mariana Basin tholeiites:Cretaceous intraplate basalts or rift basalts related to the Ontong Java plume?. Earth and Planetary Science Letters, 123(1-3):139-154
    Cogné J P, Humler E. 2004. Temporal variation of oceanic spreading and crustal production rates during the last 180 My. Earth and Planetary Science Letters, 227(3-4):427-439
    Davis E E, Lister C R B. 1974. Fundamentals of ridge crest topography. Earth and Planetary Science Letters, 21(4):405-413
    Downey N J, Stock J M, Clayton R W, et al. 2007. History of the Creta-ceous Osbourn spreading center. Journal of Geophysical Re-search:Solid Earth, 112(B4):doi: 10.1029/2006JB004550
    Fisk M, Kelley K A. 2002. Probing the Pacific's oldest MORB glass:mantle chemistry and melting conditions during the birth of the Pacific plate. Earth and Planetary Science Letters, 202(3-4):741-752
    Hardebeck J, Anderson D L. 1996. Eustasy as a test of a Cretaceous superplume hypothesis. Earth and Planetary Science Letters, 137(1-4):101-108
    Hu Xiumian. 2005. Middle Cretaceous abnormal geological events and global change. Earth Science Frontiers(in Chinese), 12(2):222-230
    Humlera E, Langmuirb C, Dauxc V. 1999. Depth versus age:new per-spectives from the chemical compositions of ancient crust. Earth and Planetary Science Letters, 173(1-2):7-23
    Janney P E, Castillo P R. 1996. Basalts from the Central Pacific Basin:Evidence for the origin of Cretaceous igneous complexes in the Jurassic western Pacific. Journal of Geophysical Research:Solid Earth, 101(B2):2875-2893
    Johnson H P, Carlson R L. 1992. Variation of sea floor depth with age:a test of models based on drilling results. Geophysical Re-search Letters, 19(19):1971-1974
    Kempton P D, Fitton J G, Saunders A D, et al. 2000. The Iceland plume in space and time:a Sr-Nd-Pb-Hf study of the North At-lantic rifted margin. Earth and Planetary Science Letters, 177(3-4):255-271
    Klein E M, Langmuir C H. 1987. Global correlations of ocean ridge basalt chemistry with axial depth and crustal thickness. Journal of Geophysical Research:Solid Earth, 92(B8):8089-8115
    Korenaga J. 2005. Why did not the Ontong Java Plateau form subaeri-ally?. Earth and Planetary Science Letters, 234(3-4):385-399
    Larson R L. 1991a. Latest pulse of Earth:Evidence for a mid-Creta-ceous superplume. Geology, 19(6):547-550
    Larson R L. 1991b. Geological consequences of superplumes. Geo-logy, 19(10):963-966
    Larson R L, Olson P. 1991. Mantle plumes control magnetic reversal frequency. Earth and Planetary Science Letters, 107(3-4):437-447
    Larson R L, Pockalny R A, Viso R F, et al. 2002. Mid-Cretaceous tec-tonic evolution of the Tongareva triple junction in the south-western Pacific Basin. Geology, 30(1):67-70
    Loper D E. 1992. On the correlation between mantle plume flux and the frequency of reversals of the geomagnetic field. Geophysic-al Research Letters, 19(1):25-28
    Machetel P, Humler E. 2003. High mantle temperature during Creta-ceous avalanche. Earth and Planetary Science Letters, 208(3-4):125-133
    McKenzie D. 1984. The generation and compaction of partially mol-ten rock. Journal of Petrology, 25(3):713-765
    Nakanishi M, Tamaki K, Kobayashi K. 1992. A new Mesozoic iso-chron chart of the northwestern Pacific Ocean:Paleomagnetic and tectonic implications. Geophysical Research Letter, 19(7):693-696
    Niu Y, Hékinian R. 2004. Ridge suction drives plume-ridge interac-tions. In:Hékinian R, Cheminée J L, Stoffers P, eds. Oceanic Hotspots. Berlin Heidelberg:Springer-Verlag, 285-307
    Ozima M, Saito K, Takigami Y. 1981. 40Ar/39Ar geochronological stud-ies on rocks drilled at Holes 462 and 462A, Deep Sea Drilling Project Leg 61. In:Initial Reports of the Deep Sea Drilling Project. US:US Govt Printing Office, 61:701-703
    Ricciardi K, Abbott D. 1996. Increased mantle convection during the mid-Cretaceous:A comparative study of mantle potential tem-perature. Journal of Geophysical Research:Solid Earth, 101(B4):8673-8684
    Rowley D B. 2002. Rate of plate creation and destruction:180 Ma to present. Geological Society of America Bulletin, 114(8):927-933
    Seton M, Gaina C, Müller R D, et al. 2009. Mid-Cretaceous seafloor spreading pulse:Fact or fiction?. Geology, 37(8):687-690
    Smith W H F, Sandwell D T. 1997. Global sea floor topography from satellite altimetry and ship depth soundings. Science, 277(5334):1956-1962
    Sutherland R, Hollis C. 2001. Cretaceous demise of the Moa plate and strike-slip motion at the Gondwana margin. Geology, 29(3):279-282
    Taylor B. 2006. The single largest oceanic plateau:Ontong Java-Mani-hiki-Hikurangi. Earth and Planetary Science Letters, 241(3-4):372-380
    Zhang G L. 2011. Comparative study of magmatism in East Pacific rise versus nearby seamounts:constraints on magma supply and thermal structure beneath mid-ocean ridge. Acta Geolo-gica Sinica(English Edition), 85(6):1286-1298
    Zhang G L, Chen L H, Li S Z. 2013. Mantle Dynamics and Generation of a Geochemical Mantle Boundary along the East Pacific Rise-Pacific/Antarctic ridge. Earth and Planetary Science Letters, 383:153-163
    Zhang G L, Smith-Duque C, Tang Suohan, et al. 2012. Geochemistry of basalts from IODP site U1365:Implications for magmatism and mantle source signatures of the mid-Cretaceous Osbourn Trough. Lithos, 144-145:73-87
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