Geochemistry of the mafic dykes in the Prakasam Alkaline Province of Eastern Ghats Belt, India: Implications for the genesis of continental rift-zone magmatism

Lithos

Volumn 104, Issue 1-4, 2008, Pages 306-326

  Vijaya Kumar, K ^a   Rathna, K ^a  

^a SWAMI RAMANAND TEERTH MARATHWADA UNIVERSITY   (India)

Author keywords

Asthenosphere; Geochemistry; Lithosphere; Mafic magmatism; Rift zone

Indexed keywords

ALKALI BASALT; ASTHENOSPHERE; CONTINENTAL LITHOSPHERE; DIKE; GABBRO; IGNEOUS GEOCHEMISTRY; LAMPROPHYRE; MAFIC ROCK; MAGMA CHEMISTRY; MAGMATISM; MELTING; PLUTON; PROTEROZOIC; RIFT ZONE;

ANDHRA PRADESH; ARCTIC; ASIA; EASTERN GHATS; EURASIA; GARDAR; GREENLAND; INDIA; PRAKASAM; SOUTH ASIA;

EID: 49349094022     PISSN: 00244937     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.lithos.2007.12.012     Document Type: Article

References (131)

1. Ahern J.L., and Turcotte D.L. Magma migration beneath an ocean ridge. Earth and Planetary Science Letters 45 (1979) 115-122
2. Aldanmaz E., Köprübaşi N., Gürer Ö.F., Kaymakçi N., and Gourgaud A. Geochemical constraints on the Cenozoic, OIB-type alkaline volcanic rocks of NW Turkey: implications for mantle sources and melting processes. Lithos 86 (2006) 50-76
3. Altherr R., Henjes-Kunst F., and Baumann A. Asthenosphere versus lithosphere as possible sources for basaltic magmas erupted during formation of the Red Sea: constraints from Sr, Pb and Nd isotopes. Earth and Planetary Science Letters 96 (1990) 269-286
4. Anil Kumar, Gopalan K., Rao K.R.P., and Nayak S.S. Rb-Sr ages of kimberlites and lamproites from Eastern Dharwar craton, South India. Journal of the Geological Society of India 58 (2001) 135-142
5. Arndt N.T., and Goldstein S.L. An open boundary between lower continental crust and mantle: its role in crust formation and crustal recycling. Tectonophysics 161 (1989) 201-212
6. Asimow P.D., Firschmann M.M., and Stolper E.M. An analysis of variations in isentropic melt productivity. Philosophical Transactions of the Royal Society of London A355 (1997) 255-281
7. Babu E.V.S.S.K., Vijaya Kumar K., and Pyle D.M. Spinel (hercynite) adcumulate from the Chimakurti gabbro-anorthosite pluton, Prakasam District, Andhra Pradesh, India: evidence for plagioclase buoyancy and magma mixing. Current Science 73 (1997) 441-444
8. Baker J.A., Menzies M.A., Thirlwall M.F., and MacPherson C.G. Petrogenesis of Quaternary intraplate volcanism, Sana'a, Yemen: implication for plume-lithosphere interaction and polybaric melt hybridization. Journal of Petrology 38 (1997) 1359-1390
9. Bedini R.M., Bodinier J.-L., Dautria J.-M., and Morten L. Evolution of LILE-enriched small melt fractions in the lithospheric mantle: a case study from the East African Rift. Earth and Planetary Science Letters 153 (1997) 67-83
10. Bertrand H., Chazot G., Blichert-Toft J., and Thoral S. Implications of wide spread high-μ volcanism on the Arabian Plate for Afar mantle plume and lithosphere composition. Chemical Geology 198 (2003) 47-61
11. Bradshaw T.K., Hawkesworth C.J., and Gallagher K. Basaltic volcanism in the Southern Basin and Range: no role for a mantle plume. Earth and Planetary Science Letters 116 (1993) 45-62
12. Burke K., Ashwal L.D., and Webb S.J. New way to map old sutures using deformed alkaline rocks and carbonatites. Geology 31 (2003) 391-394
13. Chakrabarti R., Basu A.R., and Paul D.K. Nd-Hf-Sr-Pb isotopes and trace element geochemistry of Proterozoic lamproites from Southern India: subducted komatiite in the source. Chemical Geology 236 (2007) 291-302
14. Chalapathi Rao N.V., Miller J.A., Pyle D.M., and Madhavan V. New Proterozoic K-Ar ages for some kimberlites and lamproites from the Cuddapah basin and Dharwar craton, southern India: evidence for non-contemporaneous emplacement. Precambrian Research 79 (1996) 363-369
15. 39Ar dating of Kotakonda kimberlite and Chelima lamproite, India: implication to the timing of mafic dyke swarm activity in the Eastern Dharwar craton. Journal of Geological Society of India 53 (1999) 425-432
16. Chalapathi Rao N.V., Gibson S.A., Pyle D.M., and Dickin A.P. Petrogenesis of Proterozoic lamproites and kimberlites from the Cuddapah basin and Dharwar craton, southern India. Journal of Petrology 45 (2004) 907-948
17. Coulson I.M., Goodenough K.M., Pearce N.J.G., and Leng M.J. Carbonatites and lamprophyres of the Gardar Province - a 'window' to the sub-Gardar mantle?. Mineralogical Magazine 67 (2003) 855-872
18. Dasgupta S., Ehl J., Raith M.M., Sengupta P., and Sengupta P. Midcrustal contact metamorphism around the Chimakurthy mafic-ultramafic complex, Eastern Ghats Belt, India. Contributions to Mineralogy and Petrology 129 (1997) 182-197
19. Davies G.R., and Macdonald R. Crustal influences in the petrogenesis of the Naivasha basalt-comendite complex: combined trace element and Sr-Nd-Pb isotopic constraints. Journal of Petrology 28 (1987) 1009-1031
20. Depaolo D.J. A neodymium and strontium isotopic study of the Mesozoic calc-alkaline granitic batholiths of the Sierra Nevada and Peninsular Ranges, California. Journal of Geophysical Research 86 (1981) 10470-10488
21. Dobmeier C.J., and Raith M.M. Crustal architecture evolution of the Eastern Ghats Belt and adjacent regions of India. In: Yoshida M., Windley B.F., and Dasgupta S. (Eds). Proterozoic East Gondwana: Supercontinent Assembly and Breakup 206 (2003), Geological Society of London, Special Publication 145-168
22. Duda A., and Schmincke H.U. Polybaric differentiation of alkali basaltic magma: evidence from green-core clinopyroxenes (Eifel, Germany). Contributions to Mineralogy and Petrology 91 (1985) 340-351
23. Dudás F.Ö. Geochemistry of igneous rocks from the Crazy Mountains, Montana, and tectonic models for the Montana alkalic province. Journal of Geophysical Research 96 (1991) 13261-13277
24. Ebinger C.J., and Sleep N.H. Cenozoic magmatism throughout east Africa resulting from impact of a single plume. Nature 395 (1998) 788-791
25. 2 rich lamproite from Smoky Butte, Montana: derivation of siliceous lamproite magmas from enriched sources deep in the continental mantle. Journal of Petrology 38 (1997) 457-477
26. Fan W.M., Guo F., Wang Y.J., and Zhang M. Late Mesozoic volcanism in the northern Huaiyang tectono-magmatic belt, Central China: partial melts from a lithosphere mantle with subducted continental crustal relicts beneath Dabie orogen?. Chemical Geology 209 (2004) 27-48
27. Fitton J.G. Coupled molybdenum and niobium depletion in continental basalts. Earth and Planetary Science Letters 136 (1995) 715-721
28. Fitton J.G., and Dunlop H.M. The Cameroon line, West Africa, and its bearing on the origin of oceanic and continental alkali basalt. Earth and Planetary Science Letters 72 (1985) 23-38
29. Foley S.F. A review and assessment of experiments on kimberlites, lamproites and lamprophyres as a guide to their origin. Proceedings of Indian Academy of Sciences 99 (1990) 57-80
30. Foley S.F. Vein-plus-wall-rock melting mechanisms in the lithosphere and the origin of potassic alkaline magmas. Lithos 96 (1992) 435-453
31. Foley S.F. An experimental study of olivine lamproite: first results from the diamond stability field. Geochimica et Cosmochimica Acta 57 (1993) 483-489
32. Frost C.D., Bell J.M., Frost B.R., and Chamberlain K.R. Crustal growth by magmatic underplating: isotopic evidence from the northern Sherman batholith. Geology 29 (2001) 515-518
33. Gao S., Rudnick R.L., Yuan H.L., Liu X.M., Liu Y.S., Xu W.L., Ling W.L., Ayers J., Wang X.C., and Wang Q.H. Recycling lower continental crust in the North China craton. Nature 432 (2004) 892-897
34. Garrido C.J., Bodinier J.-L., Burg J.-P., Zeilinger G., Hussain S.S., Dawood H., Chaudhry N.N., and Gervilla F. Petrogenesis of mafic garnet granulite in the lower crust of the Kohistan Paleo-arc complex (Northern Pakistan): implications for intra-crustal differentiation of island arcs and generation of continental crust. Journal of Petrology 47 (2006) 1873-1914
35. Glazner A.F. Foundering of mafic plutons and density stratification of continental crust. Geology 22 (1994) 435-438
36. Goes S., Spakman H., and Bijwaard H. A lower mantle source for Central European volcanism. Science 286 (1999) 1928-1931
37. Goodenough K.M., Upton B.G.J., and Ellam R.M. Long-term memory of subduction processes in the lithospheric mantle: evidence from the geochemistry of basic dykes in the Gardar Province of South Greenland. Journal of the Geological Society, London 159 (2002) 705-714
38. Gurenko A.A., and Chaussidon M. Enriched and depleted primitive melts in olivine from Icelandic tholeiites: origin by continuous melting of a single mantle column. Geochimica et Cosmochimica Acta 59 (1995) 2905-2917
39. Haase K.M., and Devey C.W. The petrology and geochemistry of Vesteris Seamount, Greenland basin - an intraplate alkaline volcano of non-plume origin. Journal of Petrology 35 (1994) 295-328
40. Haase K.M., Goldschmidt B., and Garbe-Schönberg C.-D. Petrogenesis of Tertiary continental intra-plate lavas from the Westerwald region, Germany. Journal of Petrology 45 (2004) 883-905
41. Halama R., Wenzel T., Upton B.G.J., Siebel W., and Markl G. A geochemical and Sr-Nd-O isotopic study of the Proterozoic Eriksfjord basalts, Gardar Province, South Greenland: reconstruction of an OIB signature in crustally contaminated rift-related basalts. Mineralogical Magazine 67 (2003) 831-853
42. Halama R., Joron J.-L., Villemant B., Markl G., and Treuil M. Trace element constraints on mantle sources during mid-Proterozoic magmatism: evidence for a link between the Gardar (South Greenland) and Abitibi (Canadian Shield) mafic rocks. Canadian Journal of Earth Sciences 44 (2007) 459-478
43. Hanson G.N. Rare earth elements in petrogenetic studies of igneous systems. Annual Review of Earth and Planetary Sciences 8 (1980) 371-406
44. Hawkesworth C.J., Kempton P.D., Rogers N.W., Ellam R.M., and van Calsteren P.W. Continental mantle lithosphere and shallow level enrichment processes in the Earth's mantle. Earth and Planetary Science Letters 96 (1990) 256-268
45. Hegner E., Walter H.J., and Satir M. Pb-Sr-Nd isotopic compositions and trace element geochemistry of megacrysts and melilitites from the Tertiary Urach volcanic field: source composition of small volume melts under SW Germany. Contributions to Mineralogy and Petrology 122 (1995) 322-335
46. 2 in alkali-basalt magma generation. Geophysical Research Letters 24 (1997) 2837-2840
47. Holm P.M., and Prægel N.-O. Cumulates from primitive rift-related East Greenland Paleogene magmas: petrological and isotopic evidence from the ultramafic complexes at Kælvegletsher and near Kærven. Lithos 92 (2006) 251-275
48. Jahn B.M., Wu F.Y., Lo C.H., and Tsai C.-H. Crust-mantle interaction induced by deep subduction of the continental crust: geochemical and Sr-Nd isotopic evidence from post-collisional mafic-ultramafic intrusions of the northern Dabie complex, Central China. Chemical Geology 157 (1999) 119-146
49. Johnson R.W., Mackenzie D.E., and Smith I.E.M. Delayed partial melting of subduction-modified mantle in Papua New Guinea. Tectonophysics 46 (1978) 197-216
50. Johnson J.S., Gibson S.A., Thompson R.N., and Nowell G.M. Volcanism in the Vitim Volcanic Field, Siberia: geochemical evidence for a mantle plume beneath the Baikal rift zone. Journal of Petrology 46 (2005) 1309-1344
51. Jung C., Jung S., Hoffer E., and Berndt J. Petrogenesis of Tertiary mafic alkaline magmas in the Hocheifel, Germany. Journal of Petrology 47 (2006) 1637-1671
52. Kaila K.L., Tewari H.C., Roy Chowdhury K., Rao V.K., Sridhar A.R., and Mall D.M. Crustal structure of the northern part of the Proterozoic Cuddapah basin of India from deep seismic soundings and gravity data. Tectonophysics 140 (1987) 1-12
53. Kalt A., Hegner E., and Satir M. Nd, Sr, and Pb isotopic evidence for diverse lithospheric mantle sources of East African Rift carbonatites. Tectonophysics 278 (1997) 31-45
54. Kovach V.P., Simmat R., Rickers K., Berezhnaya N.G., Salnikova E.B., Dobmeier C., Raith M.M., Yakovleva S.Z., and Kotov A.B. The Western Charnockite Zone of the Eastern Ghats Belt, India: an independent crustal province of late Archean (2.8 Ga) and Paleoproterozoic (1.7-1.6 Ga) terrains. Gondwana Research 4 (2001) 666-667
55. Krienitz M.-S., Haase K.M., Mezger K., Eckardt V., and Shaikh-Mashail M.A. Magma genesis and crustal contamination of continental intraplate lavas in northwestern Syria. Contributions to Mineralogy and Petrology 151 (2006) 698-716
56. Larsen L.M., and Rex D.C. A review of the 2500 Ma span of alkaline-ultramafic, potassic and carbonatitic magmatism in West Greenland. Lithos 28 (1992) 367-402
57. Latin D., Norry M.J., and Tarzey R.J.E. Magmatism in the Gregory Rift, East Africa: evidence for melt generation by a plume. Journal of Petrology 34 (1993) 1007-1027
58. Le Roux A.P. Geochemical correlation between southern African kimberlites and Atlantic hotspots. Nature 324 (1986) 243-245
59. Lee C.-T.A., Cheng X., and Horodyskyj U. The development and refinement of continental arcs by primary basaltic magmatism, garnet pyroxenite accumulation, basaltic recharge and delamination: insights from the Sierra Nevada, California. Contributions to Mineralogy and Petrology 151 (2006) 222-242
60. Leelanandam C. The Prakasam alkaline province in Andhra Pradesh, India. Journal of the Geological Society of India 34 (1989) 25-45
61. Leelanandam C. Alkaline magmatism in the Eastern Ghats mobile belt - a critique. Journal of the Geological Society of India 42 (1993) 435-448
62. Leelanandam C. Na-poor ferro-augites and ferro-hedenbergites from ferrosilite-bearing ferrosyenites of the Prakasam District in Andhra Pradesh, India: further evidences for a tholeiitic parentage. Journal of the Geological Society of India 44 (1994) 7-16
63. Leelanandam C., and Vijaya Kumar K. Petrogenesis and tectonic setting of the chromitites and chromite-bearing ultramafic cumulates of the Kondapalli layered complex, Eastern Ghats Belt, India: evidences from the textural, mineral-chemical and whole-rock geochemical studies. IAGR Memoir 10 (2007) 197-216
64. Leelanandam C., Burke K., Ashwal L.D., and Webb S.J. Proterozoic mountain building in Peninsular India: an analysis based primarily on alkaline rock distribution. Geological Magazine 143 (2006) 195-212
65. Macdonald R., Rogers N.W., Fitton J.G., Black S., and Smith M. Plume-lithosphere interactions in the generation of the basalts of the Kenya rift, East Africa. Journal of Petrology 42 (2001) 877-900
66. Madhavan V., and Leelanandam C. Petrology of the Elchuru alkaline pluton, Prakasam District, Andhra Pradesh, India. Journal of the Geological Society of India 31 (1988) 515-537
67. Madhavan V., and Mallikarjun Rao J. Petrology of olivine basalt dyke of lamprophyre affinity at Uppalapadu, Prakasam District, Andhra Pradesh. Journal of the Geological Society of India 36 (1990) 493-501
68. Madhavan V., Srinivasan T.P., Srinivas M., and David K. The Mid-Proterozoic dyke swarm of mica lamprophyres and microshonkinites from Elchuru, India. In: Parker A.J., Rickwood P.C., and Tucker D.H. (Eds). Mafic Dykes and Emplacement Mechanism (1990), Balkema Publications 349-362
69. Madhavan V., Rao J.M., Balaram V., and Ramesh Kumar. Geochemistry and petrogenesis of lamprophyres and associated dykes from Elchuru, Andhra Pradesh, India. Journal of the Geological Society of India 40 (1992) 135-149
70. Martin R.F. A-type granites of crustal origin ultimately result from open-system fenitization-type reactions in an extensional environment. Lithos 91 (2006) 125-136
71. McKenzie D.P. Some remarks on the movement of small melt fractions in the mantle. Earth and Planetary Science Letters 95 (1989) 53-72
72. McKenzie D., and O'Nions R.K. Partial melt distributions from the inversion of rare earth element concentrations. Journal of Petrology 32 (1991) 1021-1091
73. McKenzie D., and O'Nions R.K. The source regions of ocean island basalts. Journal of Petrology 36 (1995) 133-159
74. 39Ar dating of metamorphic and magmatic minerals: implications for the SWEAT correlation. Precambrian Research 94 (1999) 251-271
75. Mitchell R.H. Melting experiments on a sanidine phlogopite lamproite at 4-7 Gpa and their bearing on the sources of lamproite magmas. Journal of Petrology 36 (1996) 1455-1474
76. Nag S., Chakravorty P.S., Smith T.E., and Huang C.H. The petrology and geochemistry of intrusive alkaline rocks of Elchuru, Prakasam District, Andhra Pradesh, India. Geological Journal 19 (1984) 57-76
77. Nicholson S.W., and Shirey S.B. Midcontinental rift volcanism in the Lake Superior region: Sr, Nd, and Pb isotopic evidence for a mantle plume origin. Journal of Geophysical Research 95 (1990) 10851-10868
78. Paslick C., Halliday A., James D., and Dawson J.B. Enrichment of the continental lithosphere by OIB melts: isotopic evidence from the volcanic province of northern Tanzania. Earth and Planetary Science Letters 130 (1995) 109-126
79. Paul D.K., Crocket J.H., Reddy T.A.K., and Pant N.C. Petrology and geochemistry including platinum group element abundances of the Mesoproterozoic ultramafic (lamproite) rocks of Krishna District, Southern India: implications for source rock characteristics and petrogenesis. Journal of the Geological Society of India 69 (2007) 577-596
80. Pearce J.A., and Cann J.R. Tectonic setting of basic volcanic rocks determined using trace element analyses. Earth and Planetary Science Letters 19 (1973) 290-300
81. Rajamani V., Balakrishnan S., and Hanson G.N. Komatiite genesis: insights provided by Fe-Mg exchange equilibria. Journal of Geology 101 (1993) 809-819
82. Rao A.D.P., Rao K.N., and Murty Y.G.K. Gabbro-anorthosite-pyroxenite complexes and alkaline rocks of Chimakurti-Elchuru area, Prakasam District, Andhra Pradesh. Records of Geological Survey of India 116 (1987) 1-20
83. Rathna K., Vijaya Kumar K., and Ratnakar J. Petrology of the dykes of Ravipadu, Prakasam Province, Andhra Pradesh, India. Journal of the Geological Society of India 55 (2000) 399-412
84. Ratnakar J., and Leelanandam C. Petrology of alkaline plutons from the eastern and southern Peninsular India. In: Leelanandam C. (Ed). Alkaline Rocks. Memoir Geological Society of India vol. 15 (1989) 145-176
85. Ratnakar J., Rama Krishna D.V., and Vijaya Kumar K. Geochemistry and origin of the Kellampalle lamprophyre, Prakasam Province, Andhra Pradesh. Journal of the Geological Society of India 48 (1995) 697-702
86. Reddy T.A.K., Sridhar M., Ravi S., Chakravarthi V., and Neelakantam S. Petrography and geochemistry of the Krishna lamproite filed, Andhra Pradesh. Journal of the Geological Society of India 61 (2003) 131-146
87. Rock N.M.S. The nature and origin of lamprophyres: some definitions, distinctions and derivations. Earth Science Reviews 13 (1977) 123-169
88. Rogers N.W., Macdonald R., Fitton J.G., George R.W.W., Smith M., and Barreiro B.A. Two mantle plumes beneath the East African rift system: Sr, Nd and Pb isotope evidence from Kenya Rift basalts. Earth and Planetary Science Letters 176 (2000) 387-400
89. Sarkar A., and Paul D.K. Geochronology of the Eastern Ghats Precambrian mobile belt - a review. Geological Survey of India Special Publication 44 (1998) 51-86
90. Shaw D.M. Trace element fractionation during anatexis. Geochimica et Cosmochimica Acta 34 (1970) 237-243
91. Shaw D.M. Continuous (dynamic) melting theory revisited. The Canadian Mineralogist 38 (2000) 1041-1063
92. Shaw J.E., Baker J.A., Menzies M.A., Thirlwall M.F., and Ibrahim K.M. Petrogenesis of the largest intraplate volcanic field on the Arabian Plate (Jordan): a mixed lithosphere-asthenosphere source activated by lithospheric extension. Journal of Petrology 44 (2003) 1657-1679
93. Sheraton J.W. Chemical changes associated with high-grade metamorphism of mafic rocks in the east Antarctic shield. Chemical Geology 47 (1984) 135-157
94. Smith M., and Mosley P. Crustal heterogeneity and basement influence on the development of the Kenya rift, East Africa. Tectonics 12 (1993) 591-606
95. Späth A., le Roex A.P., and Opiyo-Akech N. Plume-lithosphere interaction and the origin of continental rift-related alkaline volcanism: the Chyulu Hills volcanic province, southern Kenya. Journal of Petrology 42 (2001) 765-787
96. Subba Rao T.V., Bhaskar Rao Y.J., Sivaraman T.V., and Gopalan K. Rb-Sr age and petrology of the Elchuru alkaline complex: implications to alkaline magmatism in the Eastern Ghat Mobile Belt. In: Leelanandam C. (Ed). Alkaline Rocks. Memoir Geological Society of India vol. 15 (1989) 207-223
97. Sun S.-s., and Nesbitt R.W. Petrogenesis of Archaean ultrabasic and basic volcanics: evidence from rare earth elements. Contributions to Mineralogy and Petrology 65 (1978) 301-325
98. Sun S.-s., and McDonough W.F. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In: Saunders A.D., and Norry M.J. (Eds). Magmatism in the Ocean Basins. Geological Society Special Publication vol. 42 (1989) 313-345
99. Tainton K.M., and McKenzie D. The generation of kimberlites, lamproites and their source rocks. Journal of Petrology 35 (1994) 787-817
100. Takazawa E., Frey F.A., Shimizu N., and Obata M. Whole rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan): are they consistent with a partial melting process?. Geochimica et Cosmochimica Acta 64 (2000) 695-716
101. Tang Y.J., Zhang H.F., and Ying J.F. Asthenosphere-lithospheric mantle interaction in an extensional regime: implication from the geochemistry of Cenozoic basalts from Taihang Mountains, North China Craton. Chemical Geology 233 (2006) 309-327
102. 39Ar age and Sr-Nd-Hf-Pb isotope constraints from alkaline and carbonatite intrusives. Earth and Planetary Science Letters 256 (2007) 433-454
103. Taylor S.R., and McLennan S.M. The Continental Crust: Its Composition and Evolution (1985), Blackwell 312 pp.
104. Thompson R.N. Asthenospheric source of Ugandan ultrapotassic magma?. Journal of Geology 93 (1985) 603-608
105. Thompson G. Metamorphic and hydrothermal processes: basalt-seawater interactions. In: Floyd P.A. (Ed). Oceanic basalts (1991), Blackie, Glasgow 148-173
106. Thompson R.N., Leat P.T., Dickin A.P., Morrison M.A., Hendry G.L., and Gibson S.A. Strongly potassic magmas from lithospheric mantle sources during continental extension and heating: evidence from Miocene minettes of northwest Colorado, U.S.A. Earth and Planetary Science Letters 98 (1990) 139-153
107. Thompson R.N., Ottley C.J., Smith P.M., Pearson D.G., Dickin A.P., Morrison M.A., Leat P.T., and Gibson S.A. Source of the Quaternary alkalic basalts, picrites and basanites of the Potrillo volcanic field, New Mexico, USA: lithosphere or convecting mantle?. Journal of Petrology 46 (2005) 1603-1643
108. Turcotte D.L., and Emerman S.H. Mechanisms of active and passive rifting. Tectonophysics 94 (1983) 39-50
109. Ulianov A., Kalt A., and Pettke T. Aluminous websterite and granulite xenoliths from the Chyulu Hills volcanic field, Kenya: gabbro-troctolitic cumulates subjected to lithospheric foundering. Contributions to Mineralogy and Petrology 152 (2006) 459-483
110. Upadhyay D., Raith M.M., Mezger K., and Hammerschmidt K. Mesoproterozoic rift-related alkaline magmatism at Elchuru, Prakasam Alkaline Province, SE India. Lithos 89 (2006) 447-477
111. Upton B.G.J., and Emeleus C.H. Mid-Proterozoic alkaline magmatism in southern Greenland: the Gardar province. In: Fitton J.G., and Upton B.J.G. (Eds). Alkaline Igneous Rocks. Geological Society Special Publication vol. 30 (1987) 449-471
112. Upton B.J.G., Emeleus C.H., Heaman L.M., Goodenough K.M., and Finch A.A. Magmatism of the mid-Proterozoic Gardar Province, South Greenland: chronology, petrogenesis and geological setting. Lithos 68 (2003) 43-65
113. Vijaya Kumar K., and Ratnakar J. Petrogenesis of the Ravipadu gabbro pluton, Prakasam province, Andhra Pradesh. Journal of the Geological Society of India 57 (2001) 113-140
114. Vijaya Kumar K., and Leelanandam C. Crustal growth in magmatic arcs: the Kondapalli arc, Eastern Ghats Belt, India. National Seminar on "Active and Fossil Suture Zones" organized by Wadia Institute of Himalayan Geology, Dehra Dun, Abstracts (2006) 119-120
115. Vijaya Kumar K., Reddy M.N., and Leelanandam C. Dynamic melting of the Precambrian mantle: evidences from rare earth elements of the amphibolites from the Nellore-Khammam schist belt, South India. Contributions to Mineralogy and Petrology 152 (2006) 243-256
116. Vijaya Kumar K., Frost C.D., Frost B.R., and Chamberlain K.R. The Chimakurti, Errakonda, and Uppalapadu plutons, Eastern Ghats Belt, India: an unusual association of tholeiitic and alkaline magmatism. Lithos 97 (2007) 30-57
117. Wang Y.J., Fan W.M., Zhang H.F., and Peng T.P. Early Cretaceous gabbroic rocks from the Taihang Mountains: implications for a paleosubduction-related lithospheric mantle beneath the central North China Craton. Lithos 86 (2006) 281-302
118. Weaver B.L. The origin of ocean island basalts end member compositions: trace and isotopic constraints. Earth and Planetary Science Letters 104 (1991) 381-397
119. Weaver B.L., and Tarney J. Chemical changes during dyke metamorphism in high-grade basement terrains. Nature 289 (1981) 47-49
120. Wedepohl K.H., and Baumann A. Central European Cenozoic plume volcanism with OIB characteristics and indications of lower mantle source. Contributions to Mineralogy and Petrology 136 (1999) 225-239
121. Wedepohl K.H., Gohn E., and Hartmann G. Cenozoic alkali basaltic magmas of western Germany and their products of differentiation. Contributions to Mineralogy and Petrology 115 (1994) 253-278
122. Wilson M. Igneous Petrogenesis (1989), Unwin Hyman, London 466 pp.
123. Wilson M., and Downes H.M. Tertiary-Quaternary extension-related alkaline magmatism in Western and Central Europe. Journal of Petrology 32 (1991) 811-849
124. Wilson M., Rosenbaum J.M., and Dunworth E.A. Melilitites: partial melts of the thermal boundary layer?. Contributions to Mineralogy and Petrology 119 (1995) 181-196
125. Windley B.F. Early Proterozoic collision tectonics and rapakivi granites intrusion in an extensional thrust-thickened crust: the Ketilidian orogen, South Greenland. Tectonophysics 195 (1991) 1-10
126. Workman R.K., and Hart S.R. Major and trace element composition of the depleted MORB mantle (DMM). Earth and Planetary Science Letters 231 (2005) 53-72
127. Xu Y.J. Evidence for crustal components in the mantle and constraints for crustal recycling mechanisms: pyroxenite xenoliths from Hannuoba, North China. Chemical Geology 182 (2002) 301-322
128. Xu Y.G., Ma J.L., Frey F.A., Feigenson M.D., and Liu J.F. Role of lithosphere-asthenosphere interaction in the genesis of Quaternary alkali and tholeiitic basalts from Datong, western North China Craton. Chemical Geology 224 (2005) 247-271
129. Yang J.-J. Ca-rich garnet-clinopyroxene rocks at Hujialin in the Su-Lu Terrane (Eastern China): deeply subducted arc cumulates?. Journal of Petrology 47 (2006) 965-990
130. Zeyen H., Volker F., Wehrle V., Fuchs K., Sobolev S.V., and Altherr R. Styles of continental rifting: crust-mantle detachment and mantle plumes. Tectonophysics 278 (1997) 329-352
131. Zindler A., and Hart S. Chemical geodynamics. Annual Review of Earth and Planetary Sciences 14 (1986) 493-571