|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
1 Department of Geology, University of Leicester, Leicester LE1 7RH, England
Large igneous provinces, representing prodigious volumes of basalt erupted through continental and oceanic crust, are believed to be associated with high-temperature mantle plumes incident at the base of the lithosphere. Recent "plume initiation" models for continental flood-basalt volcanism suggest that material in the plume will intersect the solidus shortly after arriving, or impacting, beneath the lithosphere, so that melting is near-synchronous with plume impact. Beneath continents, however, melting of a plume head is inhibited by the presence of a thick (>125 km) mechanical boundary layer, which must be thinned and removed by conductive heating and melt injection before significant basalt production can occur. This necessitates a period of plume incubation, characterized by lithosphere extension and doming, by the establishment of long- lived paleodrainage patterns, and, laterally, by the intrusion of alkalic magmas. Field evidence from rive major igneous provinces indicates that plume incubation is a more appropriate model than simple plume impact for continental flood-basalt volcanism.
This article has been cited by other articles:
|
|
 |
|
  L. Geoffroy, C. Aubourg, J.-P. Callot, and J.-A. Barrat Mechanisms of crustal growth in large igneous provinces: The north Atlantic province as a case study Geological Society of America Special Papers, January 1, 2007; 430(0): 747 - 774. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A.-K. M. Moghazi and A.-K. M. MOGHAZI Geochemistry of a Tertiary continental basalt suite, Red Sea coastal plain, Egypt: petrogenesis and characteristics of the mantle source region Geological Magazine, January 1, 2003; 140(1): 11 - 24. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. A. DUNCAN A Time Frame for Construction of the Kerguelen Plateau and Broken Ridge J. Petrology, July 1, 2002; 43(7): 1109 - 1119. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. F. COFFIN, M. S. PRINGLE, R. A. DUNCAN, T. P. GLADCZENKO, M. STOREY, R. D. MULLER, and L. A. GAHAGAN Kerguelen Hotspot Magma Output since 130 Ma J. Petrology, July 1, 2002; 43(7): 1121 - 1137. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. R. Ali, J. R. ALI, G. M. THOMPSON, X. SONG, and Y. WANG Emeishan Basalts (SW China) and the 'end-Guadalupian' crisis: magnetobiostratigraphic constraints Journal of the Geological Society, January 1, 2002; 159(1): 21 - 29. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. M. Thompson, G. M. THOMPSON, J. R. ALI, X. SONG, and D. W. JOLLEY Emeishan Basalts, SW China: reappraisal of the formation's type area stratigraphy and a discussion of its significance as a large igneous province Journal of the Geological Society, July 1, 2001; 158(4): 593 - 599. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. ZHANG, P. J. STEPHENSON, S. Y. O'REILLY, M. T. McCULLOCH, and M. NORMAN Petrogenesis and Geodynamic Implications of Late Cenozoic Basalts in North Queensland, Australia: Trace-element and Sr-Nd-Pb Isotope Evidence J. Petrology, April 1, 2001; 42(4): 685 - 719. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. C. KERR, R. V. WHITE, and A. D. SAUNDERS LIP Reading: Recognizing Oceanic Plateaux in the Geological Record J. Petrology, July 1, 2000; 41(7): 1041 - 1056. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. H. SCARROW, J. M. CURRAN, and A. C. KERR Major Element Records of Variable Plume Involvement in the North Atlantic Province Tertiary Flood Basalts J. Petrology, July 1, 2000; 41(7): 1155 - 1176. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Veena, B. K. Pandey, P. Krishnamurthy, and J. N. Gupta Pb, Sr and Nd Isotopic Systematics of the Carbonatites of Sung Valley, Meghalaya, Northeast India: Implications for Contemporary Plume-Related Mantle Source Characteristics J. Petrology, November 1, 1998; 39(11-12): 1875 - 1884. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. GEOFFROY, J. P. GELARD, C. LEPVRIER, and P. OLIVIER The coastal flexure of Disko (West Greenland), onshore expression of the 'oblique reflectors' Journal of the Geological Society, June 1, 1998; 155(3): 463 - 473. [Abstract] [PDF]
|
|
|
|
 |
|
 M. Wilson, R. Guiraud, C. Moreau, and Y. J.-C. Bellion Late Permian to Recent magmatic activity on the African-Arabian margin of Tethys Geological Society, London, Special Publications, January 1, 1998; 132(1): 231 - 263. [Abstract] [PDF]
|
|
|
|
|
|
M. Widdowson Tertiary palaeosurfaces of the SW Deccan, Western India: implications for passive margin uplift Geological Society, London, Special Publications, January 1, 1997; 120(1): 221 - 248. [Abstract] [PDF]
|
|
|
|
|
|
J. A. Chalmers, L. M. Larsen, and A. K. Pedersen Widespread Palaeocene volcanism around the northern North Atlantic and Labrador Sea: evidence for a large, hot, early plume head Journal of the Geological Society, November 1, 1995; 152(6): 965 - 969. [Abstract] [PDF]
|
|
|
|
 |
|
 A. R. Basu, A. R. Basu, R. J. Poreda, P. R. Renne, F. Teichmann, Y. R. Vasiliev, N. V. Sobolev, and B. D. Turrin High-3He Plume Origin and Temporal-Spatial Evolution of the Siberian Flood Basalts Science, August 11, 1995; 269(5225): 822 - 825. [Abstract] [PDF]
|
|
|
|
|
|
M. Storey, M. Storey, J. J. Mahoney, A. D. Saunders, R. A. Duncan, S. P. Kelley, and M. F. Coffin Timing of Hot Spot--Related Volcanism and the Breakup of Madagascar and India Science, February 10, 1995; 267(5199): 852 - 855. [Abstract] [PDF]
|
|
|
|
 |
|
 G. P. L. Walker Flood basalts versus central volcanoes and the British Tertiary volcanic Province Geological Society, London, Memoirs, January 1, 1995; 16(1): 195 - 202. [Abstract] [PDF]
|
|
|
|
|
|
D. Bercovici, D. Bercovici, and J. Mahoney Double Flood Basalts and Plume Head Separation at the 660-Kilometer Discontinuity Science, November 25, 1994; 266(5189): 1367 - 1369. [Abstract] [PDF]
|
|
|
|
|
|
R. MACDONALD, L. A. J. WILLIAMS, and I. G. GASS Tectonomagmatic evolution of the Kenya rift valley: some geological perspectives Journal of the Geological Society, October 1, 1994; 151(5): 879 - 888. [Abstract] [PDF]
|
|
|
|
|
|
M. WILSON Geochemical signatures of oceanic and continental basalts: a key to mantle dynamics? Journal of the Geological Society, October 1, 1993; 150(5): 977 - 990. [Abstract] [PDF]
|
|
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
