Contrasting TiO2 Compositions in Early Cenozoic Mafic Sills of the Faroe Islands: An Example of Basalt Formation from Distinct Melting Regimes
Earth Sciences
Volume 8, Issue 5, October 2019, Pages: 235-267
Received: Aug. 14, 2019; Accepted: Sep. 23, 2019; Published: Oct. 9, 2019
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Jógvan Hansen, Department of Earth Sciences, Durham University, Durham, United Kingdom
Jon Davidson, Department of Earth Sciences, Durham University, Durham, United Kingdom
Dougal Jerram, The Centre for Earth Evolution and Dynamics (CEED), Oslo University, Oslo, Norway; Dougalearth Ltd., Solihull, United Kingdom; Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane, Australia
Christopher Ottley, Department of Earth Sciences, Durham University, Durham, United Kingdom
Mike Widdowson, School of Environmental Science, University of Hull, Hull, United Kingdom
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The Paleocene lava succession of the Faroe Islands Basalt Group (FIBG), which is a part of the North Atlantic Igneous Province (NAIP), is intruded by numerous basaltic sills. These can be grouped into three main categories according to their geochemical characteristics: A low-TiO2 sill category (TiO2 = 0.7-0.9), a relatively high-TiO2 sill category (TiO2 = 1.95-2.6) and an intermediate-TiO2 sill that displays major element compositions lying between the other two categories. Mantle normalised plots for the high-TiO2 and low-TiO2 sills display relatively uniform flat LREE trends and slightly steeper HREE slopes for high-TiO2 relative to low-TiO2 sills. The intermediate-TiO2 Morskranes Sill is LREE depleted. Mantle normalised trace elements of low-TiO2 sill samples define positive Eu and Sr anomalies, whereas high-TiO2 sill samples display negative anomalies for these same lements. Different Nb and Ta anomalies (positive versus negative) in many high-TiO2 versus low-TiO2 sill samples suggest various metasomatism of their sources prior to partial melting. The intermediate-TiO2 sill displays noticeably lower 87Sr/86Sr, 206Pb/204Pb and 208Pb/204Pb ratios relative to both the high-TiO2 and the low-TiO2 sill samples. Pb isotope compositions displayed by local contaminated basaltic lavas imply that some of these assimilated distinct crustal material from E Greenland or basement from NW Britain, while others probably assimilated only distinct E Greenland type of crustal material. A third crustal source of E Greenland or Rockall-type basement could be required in order to explain some of the range in lead isotopes displayed by the intermediate-TiO2 Morskranes Sill. Geochemical modelling suggest that Faroese high-TiO2 sills, could have formed by ~4 to 7.5% batch melting of moderately fertile lherzolites, while 16 to 21% batch melting fertile mantle sources could explain geochemical compositions of Faroese low-TiO2 sills. The intermediate-TiO2 sill samples could have formed by a range of 6 to 7% batch melting of a depleted mantle source, probably with a composition comparable to sources that gave rise to local low-TiO2 and intermediate-TiO2 host-rocks. Most Faroese sill samples probably developed outside the garnet stabilitry field and probably formed by batch melting of mantle materials comparable in composition to those reported for the sub-continental lithospheric mantle (SCLM) previously at depths of ≤ 85 km. Relative enrichments in LREE (and LILE in general), and their varying Nb and Ta anomalies point to sources affected by metasomatism.
North Atlantic, Faroe Islands, Flood Basalts, Sill Intrusion, Partial Melting, Fractional Crystallisation, Mineral Accumulation, Crustal Contamination
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Jógvan Hansen, Jon Davidson, Dougal Jerram, Christopher Ottley, Mike Widdowson, Contrasting TiO2 Compositions in Early Cenozoic Mafic Sills of the Faroe Islands: An Example of Basalt Formation from Distinct Melting Regimes, Earth Sciences. Vol. 8, No. 5, 2019, pp. 235-267. doi: 10.11648/
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Svensen, H. H., Jerram, D. A., Polozov, A. G., Planke, P., Neal, C. R., Augland, L. E. and Emeleus, H. C. (2019). Thinking about LIPs: a brief history of ideas of large igneous province research, Tectonophysics 760, 229-251.
Meyer, R., Van Wijk, J. and Gernigon, L. (2007). The North Atlantic Igneous Province: A review of models for its formation, Geol. Soc. Am. Spec. Pap. 430, 525-552.
Waagstein, R. (1988). Structure, composition and age of the Faeroe basalt plateau, Geol. Soc. London, Spec. Publ. 39, 225-238.
Gibson, S. A., Thompson, R. N., Dickin, A. P. and Leonardos, O. H. (1995). High-Ti and low-Ti mafic potassic magmas: Key to plume-lithosphere interactions and continental flood-basalt genesis, Earth Plan. Sci. Lett. 136, 149-165.
Peate, D. W. and Hawkesworth, C. J. (1996). Lithospheric to asthenospheric transition in Low-Ti flood basalts from southern Paraná, Brazil, Chem. Geol. 127, l-24.
Jerram, D. A., Single, R. T., Hobbs, R. W. and Nelson, C. E. (2009). Understanding the offshore flood basalt sequence using onshore volcanic facies analogues: an example from the Faroe–Shetland basin, Geol. Mag. 146 (3), 353-367.
Holm, P. M., Hald, N. and Waagstein, R. (2001). Geochemical and Pb-Sr-Nd isotopic evidence for separate hot depleted and Iceland plume mantle sources for the Paleogene basalts of the Faroe Islands, Chem. Geol. 178, 95-125.
Søager, N. and Holm, P. M. (2011). Changing compositions of the Iceland plume; Isotopic and elemental constraints from the Paleogene Faroe flood basalts, Chem. Geol. 280, 297-313.
Millett, J. M., Hole, M. J., Jolley, D. W. and Passey, S. R. (2017). Geochemical stratigraphy and correlation within Large Igneous Provinces: The final preserved stages of the Faroe Islands Basalt Group, Lithos 286–287 1-15.
Walker, J. A., Carr, M. J., Feigenson, M. D. and Kalamarides, R. I. (1990). The petrogenetic significance of interstratified high- and low-Ti basalts in central Nicaragua, J. Petrol. 31 (5), 1141-1164.
Xiao, L., Xu, Y. G., Mei, H. J., Zheng, Y. F., He, B. and Pirajno, F. (2004). Distinct mantle sources of low-Ti and high-Ti basalts from the western Emeishan large igneous province, SW China: implications for plume-lithosphere interaction. Earth Plan. Sci. Lett. 228, 525-546.
Ivanov, A. V., Demonterova, E. I., Rasskazov, S. V. and Yasnygina, T. A. (2008). Low-Ti melts from the southeastern Siberian Traps Large Igneous Province: Evidence for a water-rich mantle source, J. Earth. Syst. Sci. 117 (1), 1-21.
Prytulak, J. and Elliott, T. (2007). TiO2 enrichment in ocean island basalts, Earth Plan. Sci. Lett. 263, 388-403.
Niu, Y., Wilson, M., Humphreys, E. R. and O’Hara, M. J. (2011). The origin of intra-plate ocean island basalts (OIB): the Lid Effect and its geodynamic implications, J. Petrol. 52 (7&8), 1443-1468.
Larsen, L. M., and Pedersen, A. K. (2009). Petrology of the Paleocene Picrites and Flood Basalts on Disko and Nuussuaq, West Greenland, J. Petrol. 50 (9), 1667-1711.
Tegner, C., Lesher, C. E., Larsen, L. M. and Watt, W. S. (1998). Evidence from the rare-earth-element recordof mantle melting for cooling of theTertiary Iceland Plume, Nature 395, 591-594.
Momme, P., Tegner, C., Brooks, C. K. and Keays, R. R. (2006). Two melting regimes during Paleogene flood basalt generation in East Greenland: combined REE and PGE modelling, Contrib. Mineral. Petrol. 151, 88-100.
Waight, T. E. and Baker, J. A. (2012). Depleted basaltic lavas from the Proto-Iceland Plume, Central East Greenland, Journal of Petrology 53 (8), 1569-1596.
Hanghøj, K., Storey, M. and Stecher, O. (2003). An isotope and trace element study of the East Greenland Tertiary dyke swarm: constraints on temporal and spatial evolution during continental rifting, J. Petrol. 44 (11), 2081-2112.
Peate, D. W. and Stecher, O. (2003). Pb isotope evidence for contributions from different Iceland mantle components to Palaeogene East Greenland flood basalts, Lithos 67, 39-52.
Kitagawa, H., Kobayashi, K., Makishima, A. and Nakamura, E. (2008). Multiple pulses of the Mantle Plume: Evidence from Tertiary Icelandic Lavas, J. Petrol. 49 (7), 1365-1396.
Ellam, R. M. and Stuart, F. M. (2000). The sub-lithospheric source of north Atlantic basalts: evidence for, and significance of, a common end-member, J. Petrol. 41 (7), 919-932.
Gariépy, C., Ludden, J. and Brooks, C. (1983). Isotopic and trace element constraints on the genesis of the Faeroe Lava pile, Earth Plan. Sci. Lett. 63, 257-272.
Fram, M. S. and Lesher, C. E. (1997). Generation and polybaric differentiation of East Greenland Early Tertiary flood basalts, J. Petrol. 38 (2), 231-275.
Font, L., Davidson, J. P., Pearson, D. G., Nowell, G. M., Jerram, D. A. and Ottley, C. J. (2008). Sr and Pb IsotopeMicro-analysis of Plagioclase Crystals from Skye Lavas: an Insight into Open-systemProcesses in a Flood Basalt Province, J. Petrol. 49 (8), 1449-1471.
Hald, N. and Waagstein, R. (1983). Silicic basalts from the Faeroe Islannds: evidence of crustal contamination, In: Bott MHP, Saxov S, Talvani M, Thiede J (eds) Structure and development of the Greenland-Scotland Ridge. New methods and concepts. Plenum New York 343-349, 1983.
Hansen, J., Jerram, D. A., McCaffrey, K. J. W. and Passey, S. R. (2011). Early Cenozoic saucer-shaped sills of the Faroe Islands: an example of intrusive styles in basaltic lava piles, J. Geol. Soc. London 168 (1), 159-178.
Jerram, D. A. and Widdowson, M. (2005). The anatomy of Continental Flood Basalt Provinces: geological constraints on the processes and products of flood volcanism, Lithos 79, 385-405.
Hansen, J., Jerram, D. A., McCaffrey, K. J. W. and Passey, S. R. (2009). The onset of the North Atlantic Igneous Province in a rifting perspective, Geol. Mag. 146 (3), 309-325.
Upton, B. G. J. (1988). History of Tertiary igneous activity in the N Atlantic borderlands, Geol. Soc. London, Spec. Publ. 39, 429-453.
Saunders, A. D., Fitton, J. G., Kerr, A. C., Norry, M. J. and Kent, R. W. (1997). The North Atlantic Igneous Province, Geophys. Monogr. 100, 45-93.
Passey, S. R. and Jolley, D. W. (2009). A revised lithostratigraphic nomenclature for the Palaeogene Faroe Islands Basalt group, NE Atlantic Ocean, Earth and Environmental Science Transactions of the Royal Society of Edinburg 99, 127-158.
Bott, M. H. P., Sunderland, J., Smith, P. J., Casten, U. and Saxov, S. (1974). Evidence for continental crust beneath the Faeroe Islands. Nature 248, 202-204.
Richardson, K. R., Smallwood, J. R., White, R. S., Snyder, D. B. and Maguire, P. K. H. (1998). Crustal structure beneath the Faroe Islands and the Faroe-Iceland Ridge, Tectonophys. 300, 159-180.
Raum, T., Mjelde, R., Berge, A. M., Paulsen, J. T., Digranes, P., Shimamura, H., Shiobara, H., Kodaira, S., Larsen, V. B., Fredsted, R. and Harrison, D. J. (2005). Sub-basalt structures east of the Faroe Islands revealed from wide-angle seismic and gravity data, Petrol. Geosci. 11 (4), 291-308.
Sammarco, C., Cornwell, D. G. and Rawlinson, N. (2017). Ambient noise tomography reveals basalt and sub-basalt velocity structure beneath the Faroe Islands, North Atlantic, Tectonophys. 721, 1-11.
Rasmussen, J. and Noe-Nygaard, A. (1969). Beskrivelse til geologisk kort over Færøerne i målestok 1: 50000, Geol. Surv. Denm. 1. Series No. 24.
Rasmussen, J. and Noe-Nygaard, A. (1970). Geology of the Faeroe Islands, Geol. Surv. Denm. I. Series No. 25, 1-142.
Passey, S. R. and Bell, B. R. (2007). Morphologies and emplacement mechanisms of the lava flows of the Faroe Islands Basalt Group, Faroe Islands, NE Atlantic Ocean, Bull. Volc. 70, 139-156.
Noe-Nygaard, A. and Rasmussen, J. (1968). Petrology of a 3, 000 metre sequence of basaltic lavas in the Faeroe Islands, Lithos 1, 286-304.
Hansen, J. (2011). Petrogenetic Evolution, Geometries and Intrusive Styles of the Early Cenozoic Saucer-Shaped Sills of the Faroe Islands. Doctoral thesis, Durham University. Available at Durham E-Theses Online
Waagstein, R., Guise, P. and Rex, D. (2002). K/Ar and 39Ar/40Ar whole-rock dating of zeolite facies metamorphosed flood basalts: the upper Paleocene basalts of the Faroe Islands, NE Atlantic, Geol. Soc. London, Spec. Publ. 197, 219-252.
Storey, M., Duncan, R. A. and Tegner, C. (2007). Timing and duration of volcanism in the North Atlantic Igneous Province: implications for geodynamics and links to the Iceland hotspot, Chem. Geol. 241, 264-281.
Ellis, D., Bell, B. R., Jolley, D. W. and O’Callaghan, M. (2002). The Stratigraphy, environment of eruption and age of ther Faroes Lava Group, NE Atlantic Ocean, Geol. Soc. London, Spec. Publ. 197, 253-269.
Hald, N. and Waagstein, R. (1984). Lithology and chemistry of a 2-km sequence of Lower Tertiary tholeiitic lavas drilled on Suðuroy, Faeroe Islands (Lopra-1), In: Berthelsen O., Noe-Nygaard A. and Rasmussen J. (eds) The deep drilling project 1980-1981 in the Faeroe Islands. Annales Societatis Scientiarum Færoensis, Tórshavn, Supplementum IX 15-38.
Søager, N. and Holm, P. M. (2009). Extended correlation of the Paleogene Faroe Islands and East Greenland plateau basalts, Lithos 107, 205-215.
Hald, N. and Waagstein, R. (1991). The dykes and sills of the Early Tertiary Faeroe Island basalt plateau, Trans. Royal Soc. Edinburg: Earth Sci. 82, 373-388.
Jolley, D. W., Passey, S. R., Hole, M. and Millett, J. (2012). Large-scale magmatic pulses drive plant ecosystem dynamics, J. Geol. Soc. 169 (6), 03-711.
Thirlwall, M. F., Gee, M. A. M., Taylor, R. N. and Murton, B. J. (2004). Mantle components in Iceland and adjecent ridges investigated using douple-spike Pb isotope ratios, Geochim. Cosmochim. Acta 68 (2), 361-386.
Larsen, L. M., Waagstein, R., Pedersen, A. K. and Storey, M. (1999). Trans-Atlantic correlation of the Palaeocene volcanic successions in the Faeroe Islands and East Greenland, J. Geol. Soc. London 156, 1081-1095.
Hansen, J., Jerram, D. A., Ottley, C. J. and Widdowson, M. (2019a). Supplements related to the paper: "Contrasting TiO2 compositions in Early Cenozoic mafic sills of the Faroe Islands: an example of basalt formation from distinct melting regimes". Mendeley Data, DOI: 10.17632/s895tync87.2.
Turner, S. R., Platt, J. P., George, R. M. M., Kelley, S. P., Pearson, D. G. and Nowell, G. M. (1999). Magmatism associated with orogenic collapse of the Betic–Alboran domain, SE Spain, J. Petrol. 40, 1011–1036.
Ottley, C. J., Pearson, D. G. and Irvine, G. J. (2003). A routine method for the dissolution of geological samples for the analysis of REE and trace elements via ICP –MS, In: Plasma Source Mass Spectrometry, Applications and Emerging Technologies, (J. G. Holland, S. D. Taner, Eds.). Royal Soc. Chem. 221–230.
Dowall, D. P., Nowell, G. M. and Pearson, D. G. (2003). Chemical pre-concentration procedures for high-precision analysis of Hf-Nd-Sr isotopes in geological materials by plasma ionisation multi-collector mass spectrometry (PIMMS) techniques, In: Holland J. G. and Tanner S. D. Eds. Plasma Source Mass Spectrometry: Applications and Emerging Technologies, The R. Soc. Chem. Cambridge 321-337.
Charlier, B. L. A., Ginibre, C., Morgan, D., Nowell, G. M., Pearson, D. G., Davidson, J. P. and Ottley, C. J. (2006). Methods for the microsampling and high precision analysis of strontium and rubidium isotopes at single crystal scale for petrological and geochronological applications, Chem. Geol. 232, 114-133.
Frei, R., Villa, I. M., Nägler, Th. F., Kramers, J. D., Pryzbylowicz, W. J., Prozesky, V. M., Hofmann, B. A. and Kamber, B. S. (1997). Single mineral dating by Pb–Pb step-leaching method; assessing the mechanisms, Geochim. Cosmochim. Acta 61, 393–414.
Schaller, M., Steiner, O., Suder, I., Frei, R. and Kramers, J. D. (1997). Pb stepwise leaching (PbSL) dating of garnet—addressing the inclusion problem. Schweiz, Min. Pet. Mitt. 77, 113–121.
Todt, W., Cliff, R. A., Hanser, A. and Hofmann, A. W. (1993). Re-calibration of NBS lead standards using 202Pb + 205Pb double spike, Terra Abstract 5, 396.
Deer, W. A., Howie, R. A. and Zussman, J. (1992). An introduction to the rock forming minerals. Second edition., Longman pp. 696.
McDonough, W. F. and Sun, S.-s. (1995). The composition of the Earth, Chem. Geol. 120, 223-253.
Steiger, R. H. and Jäger, E. (1977). Subcommission on geochronology: convention of the use of decay constants in geo- and cosmochronology, Earth Plan. Sci. Lett. 36, 359-362.
Lugmair, G. W. and Marti, K. (1978). Lunar initial 143Nd/144Nd: differential evolution of the lunar crust and mantle, Earth Plan. Sci. Lett. 39, 349-357.
Stracke, A., Zindler, A., Salters, V. J. M., McKenzie, D., Blichert-Toft, J., Albaréde, F. and Grønvold, K. (2003). Theistareykir revisited, Geochem. Geophys. Geosyst. 4 (2), pp. 49.
Kokfeldt, T. F., Hoernle, K., Hauff, F., Fiebig, J., Werner, R. and Schônberg, D. G-S. (2006). Combined Trace Element and Pb-Nd–Sr-O Isotope Evidence for Recycled Oceanic Crust (Upper and Lower) in the Iceland Mantle Plume, J. Petrol. 47 (9), 1705-1749, 2006.
Rollinson, H. (1998). Using geochemical data: evaluation, presentation, interpretation, Longman, pp. 352.
Wood, D. A., Gibson, I. L. and Thompson, R. N. (1976). Elemental mobility during zeolite facies metamorphism of the Tertiary basalts of eastern Iceland, Contrib. Mineral. Petrol. 55, 241-254.
Higgins, N. C., Solomon, M. and Varne, R. (1985). The genesis of the Blue Tier Batholith, northeastern Tasmania, Lithos 18, 129-149.
Babechuk, M. G., Widdowson, M. and Kamber, B. S. (2014). Quantifying chemical weathering intensity and trace element release from two contrasting basalt profiles, Deccan Traps, India, Chem. Geol. 363, 56-75.
Thompson, R. N., Morrison, M. A., Dickin, A. P. and Hendry, G. L. (1983). Continental flood basalts... Arachnids Rule OK?, In: Hawkesworth C. J., Norry M. J. (eds) Continental flood basalts and mantle xenoliths, Shiva, Nantwick, UK 158-185.
Kerr, A. C., Kempton, P. D. and Thompson, R. N. (1995). Crustal assimilation during turbulent magma ascent (ATA); new isotopic evidence from the Mull Tertiary lava succession, N. W. Scotland, Contrib. Mineral. Petrol. 119, 142-154.
Sun, S.-s and McDonough, W. F. (1989). Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes, Geol. Soc. London, Spec. Publ. 42, 313-345, doi: 10.1144/GSL. SP.1989.042.01.19
Kays, M. A., Goles, G. G. and Grover, T. W. (1989). Precambrian sequence bordering the Skaergaard Intrusion, J. Petrol. 30 (2), 321-361.
Kalsbeek, F. (1995). Geochemistry, tectonic setting, and poly-orogenic history of Palaeoproterozoic basement rocks from the Caledonian fold belt of North-East Greenland, Precamb. Res. 72, 301-315.
Thrane, K. (2002). Relationships between Archaean and Palaeoproterozoic crystalline basement complexes in the southern part of the East Greenland Caledonides: an ion microprobe study, Precamb. Res. 113, 19-42.
Weaver, B. L. and Tarney, J. (1980). Rare earth geochemistry of Lewisian granulite-facies gneisses, northwest Scotland: implications for the petrogenesis of the Archaean lower continental crust, Earth Plan. Sci., Lett. 51, 279-296.
Thompson, R. N., Morrison, M. A., Dickin, A. P., Gibson, I. L. and Harmon, R. S. (1986). Two contrasting styles of interaction between basic magmas and continental crust in the British Tertiary Igneous Province, J. Geophys. Res. 91 (B6), 5985-5997.
Meyer, R., Nicoll, G. R., Hertogen, J., Troll, V. R., Ellam, R. M. and Emelius, C. H. (2009). Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example from the Isle of Rum, NW Scotland, Geol. Mag. 146 (3), 382-399.
Morton, A. C. and Taylor, P. N. (1991). Geochemical and isotopic constraints on the nature and age of basement rocks from Rockall Bank, NE Atlantic, J. Geol. Soc. London 148, 631-634.
Hansen, J., Davidson, J. P., Jerram, D. A., Ottley, C. J. and Widdowson, M. (2019b). Data sets showing calculations/modelling on basaltic rocks of the Faroe Islands. Mendeley, 2019, DOI: 10.17632/47fzntf2b3.1.
Saal, A. E., Hart, S. R., Shimizu, N., Hauri, E. H. and Layne, G. D. (1998). Pb isotopic variability in melt inclusions from oceanic island basalts, Polynesia, Science 282, 1481-1484.
Bryce, J. G. and DePaolo, D. J. (2004). Pb isotopic heterogeneity in basaltic phenocrysts. Geochim. Cosmochim. Acta 68 (21), 4453-4468.
Faure, G. (2001). Origin of igneous rocks: the isotopic evidence, Springer Verlag. Berlin, Heidelberg, New York pp. 495.
Blichert-Toft, J., Lesher, C. E. and Rosing, M. T. (1992). Selectively contaminatcd magmas of the Tertiary East Greenland macrodyke complex, Contrib. Mineral. Petrol. 110, 154-172.
Taylor, P. N., Kalsbeek, F. and Bridgwater, D. (1992). Discrepancies between neodymium, lead and strontium model ages from the Precambrian of southern East Greenland: Evidence for a Proterozoic granulite-facies event affecting Archaean gneisses, Chem. Geol. 94, 281-291.
Dickin, A. P. (1981). Isotope geochemistry of Tertiary igneous rocks from the Isle of Skye., J. Petrol. 22, 155-189.
Geldmacher, J., Haase, K. M., Devey, C. W. and Garbe-Schӧnberg, C. D. (1998). The petrogenesis of Tertiary cone-sheets in Ardnamurchan, NW Scotland: petrological and geochemical constraints on crustal contamination and partial melting, Contrib Mineral Petrol. 131, 196-209.
Troll, V. R., Donaldson, C. H. and Emeleus, C. H. (2004). Pre-eruptive magma mixing in ash-flow deposits of the Tertiary Rum Igneous Centre, Scotland, Contrib Mineral Petrol. 147, 722-739.
Yaxley, G. M. (2000). Experimental study of the phase and melting relations of homogeneous basalt + peridotite mixtures and implications for the petrogenesis of flood basalts, Contrib. Mineral. Petrol. 139, 326-338.
Bernstein, S. (1994). High-pressure fractionation in rift-related basaltic magmatism: Faeroe plateau basalts, Geology 22, 815-818.
O’Hara, M. J. and Mathews, R. E. (1981). Geochemical evolution in an advancing, periodically replenished, periodically tapped, continuously fractionated magma chamber, J. Geol. Soc. London 138, 237-277.
Falloon, T. J., Green, D. H., Danyushevskyi, L. V. and Faul, U. H. (1999). Peridotite Melting at 1·0 and 1·5 GPa: an Experimental Evaluation of Techniques using Diamond Aggregates and Mineral Mixes for Determination of Near-solidus Melts, J. Petrol. 40 (9), 1343-1375.
Dasgupta, R., Hirschmann, M. M. and Smith, N. D. (2007). Partial melting experiments of peridotite + CO2 at 3 GPa and genesis of alkalic ocean island basalts. J. Petrol. 48 (11), 2093-2124.
Lesnov, F. P., Koz’menko, O. A., Nikolaeva, I. V. and Palesskii, S. V. (2009). Residence of incompatible trace elements in a large spinel lherzolite xenolith from alkali basalt of Shavaryn Tsaram-1 paleovolcano (western Mongolia), Russ. Geol. Geophys. 50, 1063–1072.
Kretz, R. (1983). Symbols for rock-forming minerals, Am. Mineral. 68, 277-279.
Hirose, K. and Kushiro, I. (1993). Partial melting of dry peridotites at high pressures: Determination of compositions of melts segregated from peridotite using aggregates of diamond, Earth Plan. Sci. Lett. 114, 477-489.
Hirose, K. and Kawamoto, T. (1995). Hydrous partial melting of lherzolite at 1 GPa: The effect of H2O on the genesis of basaltic magmas, Earth Plan. Sci. Lett. 133, 463-473.
Kogiso, T., Hirose, K. and Takahashi, E. (1998). Melting experiments on homogeneous mixtures of peridotite and basalt: application to the genesis of ocean island basalts, Earth Plan. Sci. Lett. 162, 45-61.
Lange, A. E., Nielsen, R. L., Tepley, III. F. J. and Kent, A. J. R. (2013). The petrogenesis of plagioclase-phyric basalts at mid-ocean ridges, Geochem. Geophys. Geosyst. 14 (8), 3282-3296.
Kushiro, I. (1996). Partial melting of a fertile mantle peridotite at high pressures: An experimental study using aggregates of diamond, Geophys. Monogr. 95, 109-122.
Kushiro, I. (2001). Partial melting experiments on peridotite and origin of mid-ocean ridge basalts, Ann. Rev. Earth Plan., Sci. 29, 71-107.
Robinson, J. A. C. and Wood, B. J. (1998). The depth of the spinel to garnet transition at the peridotite solidus, Earth Plan. Sci. Lett. 164, 277-284.
Presnall, D. C., Gudfinnsson, G. H. and Walters, M. J. (2002). Generation of mid-ocean ridge basalts at pressures from 1 to 7 GPa. Geochim. Cosmochim. Acta, 66 (120), 2073-2090. (02) 00890-6
Borghini, G., Fumagalli, P. and Rampone, E. (2010). The stability of plagioclase in the upper mantle: Subsolidus experiments on fertile and depleted lherzolite. J. Petrol. 51 (1-2), 229-254.
Peate, D. W. (1997). The Parana-Etendeka Province. Large Igneous Provinces: Continental, Oceanic, and Planetary Flood Volcanism, Geophys. Monogr. 100, 217-245.
Obata, M. and Morten, L. (1987). Transformation of Spinel Lherzolite to Garnet Lherzolite in Ultramafic Lenses of the Austridic Crystalline Complex, Northern Italy, J. Petrol. 28 (3), 599-623.
Ionov, D. A., Bodinier, J-L., Mukasa, S. B. and Zanetti, A. (2002). Mechanisms and sources of mantle metasomatism: major and trace element compositions of peridotite xenoliths from Spitsbergen in the context of numerical modelling, J. Petrol. 43 (12), 2219-2259.
Downes, H., MacDonald, R., Upton, B. G. J., Cox, K. G., Bodinier, J-L., Mason, P. R. D., James, D., Hill, P. G. and Hearn, B. C. (2004). Ultramafic xenoliths from the Bearpow Mountains, Montana, USA: Evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming Craton, J. Petrol. 45 (8), 1631-1662.
Choi, S. H. and Kwon, S-T. (2005). Mineral chemistry of spinel peridotite xenoliths from Baengnyeong Island, South Korea, and its implications for the paleogeotherm of the uppermost mantle, The Island Arc 14, 236-253.
McDonough, W. F. (1994). Chemical and isotopic systematics of continental lithospheric mantle, In: H. O. A. Meyer and O. H. Leonardos (Editors), Proc. 5th Int. Kimberlite Conf., CPRM (Comp. Pesq. Recurs. Miner.), Brasilia pp. 478-485.
Ntaflos, T., Tschegg, C., Coltorti, M., Akinin, V. V. and Kosler, J. (2008). Asthenospheric signature in fertile spinel lherzolites from the Viliga Volcanic Field in NE Russia, From: Coltorti M. and Gregoire M. (eds) Metasomatism in Oceanic and Continental Lithospheric Mantle. Geol. Soc., London, Spec. Publ. 293, 57–81.
Rampone, E., Romairone, A. and Hofmann, A. W. (2004). Contrasting bulk and mineral chemistry in depleted mantle peridotites: evidence for reactive porous flow, Earth Plan. Sci. Lett. 218, 491-506.
Workman, R. K. and Hart, S. R. H. (2005). Major and trace element composition of the depleted MORB mantle (DMM), Earth Plan. Sci. Lett. 231, 53-72.
Villaseca, C., Ancochea, E., Orejana, D. and Jeffries, T. E. (2010). Composition and evolution of the lithospheric mantle in central Spain: inferences from peridotite xenoliths from the Cenozoic Calatrava volcanic field, From: Coltorti, M., Downes, H., Gregoire, M. & O’Reilly, S. Y. (eds) Petrological Evolution of the European Lithospheric Mantle, Geol. Soc. London, Spec. Publ. 337, 125–151.
Kerr, A. C. (1995). The geochemistry of the Mull-Morvern Tertiary lava succession, NW Scotland: an assessment of mantle sources during plume-related volcanism, Chem. Geol. 122 (1-4), 43-58.
Wood, D. A. (1979). A variably veined suboceanic upper mantle – Genetic significance for mid-ocean ridge basalts from geochemical evidence, Geology 7, 499-503.
Hofmann, A. W. (2003). Treatise on Geochemistry, Volume 2. Editor: Richard W. Carlson. Executive Editors: Heinrich D. Holland and Karl K. Turekian, pp. 568, ISBN 0-08-043751-6, Elsevier 61-101.
Dupuy, C., Mével, C., Bodinier, J-L. and Savoyant, L. (1991). Zabargad peridotite: Evidence for multistage metasomatism during Red Sea rifting, Geology 19, 722-725.
Grégoire, M., Bell, D. R. and Le Roex, A. P. (2003). Garnet lherzolites from the Kaapvaal Craton (South Africa): trace element evidence for a metasomatic history, J. Petrol. 44 (4), 629-657.
Klein, E. M. and Langmuir, C. H. (1987). Global correlations of ocean ridge basalt chemistry with axial depth and crustal thickness, J. Geophys. Res. 92 (B8), 8089-8115.
Fodor, R. V. (1987). Low- and high-TiO2 flood basalts of southern Brazil: origin from picritic parentage and a common mantle source, Earth Plan. Sci. Lett. 84, 423-430.
Korenaga, J. and Kelemen, P. B. (2000). Major element heterogeneity in the mantle source of the North Atlantic Igneous Province, Earth Plan. Sci. Lett. 184, 251-268.
Scarrow, J. H. and Cox, K. G. (1995). Basalts generated by decompressive adiabatic melting of a mantle plume: A case study from the Isle of Skye, NW Scotland, J. Petrol. 36, 3-22.
Kogiso, T., Hirschmann, M. M. and Pertermann, M. (2004). High-pressure partial melting of mafic lithologies in the mantle, J. Petrol. 45 (12), 2407-2422, 2004.
Blatt, H. and Tracy, R. J. (1995). Petrology, Igneous, Sedimentary, and Metamorphic, Second edition. W. H. Freeman and Company, New York pp. 529.
Hanan, B. B., Blichert-Toft, J., Kingsley, R. and Schilling, J-G. (2000). Depleted Iceland mantle plume geochemical signature: artifact of multicomponent mixing?, Geochem. Geophys. Geosyst. 1 (1), pp. 19.
Fitton, J. G., Saunders, A. D., Kempton, P. D. and Hardarson, B. S. (2003). Does depleted mantle form an intrinsic part of the Iceland plume?, Geochem. Geophys. Geosyst. 4 (3), pp. 14.
Zhang, P-F., Tang, Y-J., Hu, Y., Zhang, H-F., Su, B-X., Xiao, Y. and Santosh, M. (2012). Review of melting experiments on carbonated eclogite and peridotite: insights into mantle metasomatism, Int. Geol. Rev. 54 (12), 1443-1455.
Green, D. H. and Falloon, T. J. (2005). Primary magmas at mid-ocean ridges, ”hotspots,” and other intraplate settings: Constraints on mantle potential temperature, in Foulger GR, Natland J H, Presnall D C, Anderson D L, eds., Plates, plumes, and paradigms: Geol. Soc. of Am. Spec. Paper 388, 217-247.
Peccerillo, A. (1999). Multiple mantle metasomatism in central-southern Italy: geochemical effects, timing and geodynamic implications, Geology 27 (4), 315-318.
Larsen, L. M., Pedersen, A. K., Sundvoll, B. and Frei, R. (2003). Alkali picrites formed by melting of old metasomatized lithospheric mantle: Manîtdlat Member, Vaigat Formation, Palaeocene of West Greenland, J. Petrol. 44 (1), 3-38.
Stracke, A., Hofmann, A. W. and Hart, S. T. (2005). FOZO, HIMU, and the rest of the mantle zoo, Geochem. Geophys. Geosyst. 6 (5), pp. 20.
Zindler, A. and Hart, S. (1986). Chemical geodynamics, Ann. Rev. Earth Plan. Sci. 14, 493-571.
Hanan, B. B. and Schilling, J-G. (1997). The dynamic evolution of the Iceland mantle plume: the lead isotope perspective, Earth Plan. Sci. Lett. 151, 43-60.
Albino, F., Briggs, J. and Syahbana, D. K. (2019). Dyke intrusion between neighbouring arc volcanoes responsible for 2017 pre-eruptive seismic swarm at Agung, Nature Com. 10, 748,
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