Jason Phipps Morgan

Chair Professor Department of Ocean Science and Engineering

Renowned for his works in geodynamics / geophysics, Prof. Morgan devoted over 30 years to academic research and teaching, with a broad interest in various topics and methodologies. As of October 2019, his Google Scholar citations were 9603 (count based on 119 publications to date), with an h-index of 50 and an i10 index of 97.

Personal Profile


During my scientific career, I have remained extremely curious about how the Earth works, with a particular fascination for the dynamics of deformation, melting, and phase transformations in scenarios ranging from mantle flow, melting, and melt migration beneath ridges, hotspots, and arcs, to hydrothermal flow and reactions at ridges and trenches, to carbon sequestration-related fluid flow and reactions in terrestrial and subseafloor environments. I started by working on geodynamic models of mid-ocean ridge processes linked to the genesis of oceanic crust and uppermost mantle. This work also involved collecting new observations with marine geophysical techniques, and led me to spend more than two years of my life participating in deep-water research expeditions. In the 1990s I started to explore how ridge processes are linked to larger scale mantle flow, work that led me to try to build quantitative geochemical models for the evolution of Earth's mantle as a byproduct of plume, ridge, arc, and hydrosphere processes. This led me to start focused work on plume-ridge and plume-lithosphere interactions, and study of the potential dynamics of a plume-fed asthenosphere that has continued to the present. In the 2000s I also started to work on subduction zone dynamics, in particular to study of the processes associated with plate bending and unbending, and, more recently, with the subduction channel that forms the plate interface region responsible for the generation of large earthquakes - and more! In the future, I plan to combine continuing theoretical work that explores and models geodynamic processes with a renewed emphasis on gathering new ship based geophysical observations in the deep ocean basins. In particular, I anticipate that there will be the opportunity to work with colleagues on developing innovative observational techniques that can improve our community’s ability to make marine seismic and other geophysical observations, with the particular goal of improving our ability to ‘routinely’ image the sub-oceanic lithosphere and upper mantle at a regional scale. With these new observations, I am hopeful that we will be able to more rapidly figure out the large-scale dynamics of the fascinating planet that call home.


Courses Taught: Geodynamics, Computational Geodynamics, Marine Geology, Marine Geophysics, Structure and Dynamics of Earth’s Interior, Introduction to Earth Sciences, Frontiers in Earth Sciences.

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Jason P. Morgan was educated at Brown University (Sc.B. Physics, 1981; Ph.D. Geophysics, 1985). Following a post-doctoral year as a Green Scholar at IGPP-SIO, he worked at MIT (1986-1990); IGPP-SIO (1990-1998); GEOMAR (1998-2004); Cornell (2004-2012); and RHUL before joining SUSTech in 2019. He has been awarded the Macelwane Award of the AGU, selected a Professeur of the College de France, awarded a Wolfson Merit Award from the Royal Society, the Love Medal of the European Geosciences Union, and is a Fellow of the AGU.

1. E. M. Parmentier and J. Morgan III, Thermal Convection in Non-Newtonian Fluids: Volumetric heating and Boundary Layer Scaling, J. Geophys. Res., 87, 7757-7762, 1982.

2. J. P. Morgan and E. M. Parmentier, Lithospheric Stress Near a Ridge-Transform Intersection, Geophys. Res. Lett., 11, 113-116, 1984.

3. R. N. Hey, D. F. Naar, M. C. Kleinrock, W. J. P. Morgan, E. Morales, and J.-G. Schilling, Microplate tectonics along a superfast seafloor spreading system near Easter Island, Nature, 317, 320-325, 1985.

4. J. P. Morgan and E. M. Parmentier, Causes and Rate Limiting Mechanisms of Ridge Propagation: A Fracture Mechanics Model, J. Geophys. Res., 90, 8603-8612, 1985.

5. J. P. Morgan and E. M. Parmentier, A Three Dimensional Gravity Study of the 95.5°W Propagating Rift in the Galapagos Spreading Center, Earth Planet. Sci. Lett., 81, 289-298, 1987.

6. J. P. Morgan, E. M. Parmentier, and J. Lin, Mechanisms for the Origin of Mid-Ocean Ridge Topography: Implications for the thermal and mechanical structure of accreting plate boundaries, J. Geophys. Res., 92, 12823-12836, 1987.

7. J. P. Morgan, Melt Migration Beneath Mid-Ocean Spreading Centers, Geophys. Res. Lett., 14, 1238-1241, 1987.

8. M. C. Kleinrock and J. P. Morgan, Triple Junction Reorganization, J. Geophys. Res., Wm. Menard Volume, 93, 2981-2996, 1988.

9. J. P. Morgan and D. W. Forsyth, 3-D Flow and Temperature Perturbations Due to a Transform Offset: Effects on Oceanic Crustal and Upper Mantle Structure, J. Geophys. Res., Wm. Menard Volume, 93, 2955-2966, 1988.

10. E. M. Parmentier and J. P. Morgan, The spreading rate dependence of three-dimensional oceanic spreading center structure, Nature, 348, 325-328, 1990.

11. J. P. Morgan and M. C. Kleinrock, Transform Zone Migration: Implications of Bookshelf Faulting at Oceanic and Icelandic Propagating Rifts, Tectonics,10, 920-935, 1991.

12. S. Kruse, M. McNutt, J. P. Morgan, L. Royden, and B. Wernicke, Lithospheric Extension near Lake Mead, Nevada: A model for ductile flow in the lower crust, JGR, 96, 4435-4456,1991.

13. J. P. Morgan, Mid-Ocean Ridge Dynamics: Observations and Theory,Rev. Geophys. IUGG Tectonophysics Quadrennial review (1987-1990) Supplement, 807-822, 1991.

14. J.-C. Sempere, J. Palmer, D. C. Christie, J. P. Morgan, and A. N. Shor, Australian-Antarctic Discordance, Geology 19, 429-432, 1991.

15. J. Lin and J. P. Morgan, The spreading rate dependence of three-dimensional mid-ocean ridge gravity structure, Geophys. Res. Lett., 19, 13-16, 1992.

16. J. P. Morgan, D. Blackman, and J. Sinton, eds., Mantle flow and melt generation at mid-ocean ridges: RIDGE Theoretical Institute 1990 volume, AGU AGU Geophysical Monograph 71, Washington, 1992.

17. D. L. Turcotte and J. P. Morgan, mantle flow and magma migration beneath an ocean ridge, in Mantle flow and melt generation at mid-ocean ridges: RIDGE Theoretical Institute 1990 volume, J. P. Morgan, D. Blackman, and J. Sinton, eds., AGU Geophysical Monograph 71, Washington, 1992.

18. M.J. Cordery and J. P. Morgan, Melting and mantle flow beneath a mid-ocean spreading center, Earth Planet Sci. Lett., 111, 493-516, 1992.

19. J. P. Morgan and W.H.F. Smith, Flattening of the sea-floor depth-age curve as a response to asthenospheric flow, Nature, 359, 524-527, 1992.

20. J. Palmer, J.-C. Sempere, D. C. Christie, and J. P. Morgan, Morphology and tectonics of the Australian-Antarctic Discordance between 123°E and 128°E, Marine Geophys. Res., 15, 121-152, 1993.

21. J. P. Morgan and Y. John Chen, The genesis of oceanic crust: Magma injection, hydrothermal circulation, and crustal flow, J. Geophys. Res., 98, 6283-6297, 1993.

22. J. P. Morgan and Y. John Chen, Dependence of ridge-axis morphology on magma supply and spreading rate, Nature, 364, 706-708, 1993.

23. M.J. Cordery and J. P. Morgan, Convection and melting at mid-ocean ridges, J. Geophys. Res., 98, 19,477-19,504, 1993.

24. J. P. Morgan and D. K. Blackman, Inversion of combined gravity and bathymetry data for crustal structure: A prescription for downward continuation, Earth Planet Sci. Lett., 119, 167-179, 1993.

25. M. A. Ravine and J. P. Morgan, Geoid effects of lateral viscosity variation near the top of the mantle: A 2D model, Earth Planet Sci. Lett., 119, 617-625, 1993.

26. D. W. Sparks, E. M. Parmentier, and J. P. Morgan, Three-dimensional mantle convection beneath a segmented spreading center: Implications for along-axis variations in crustal thickness and gravity, J. Geophys. Res., 98, 21,977-21,995, 1993.

27. J. P. Morgan and P. M. Shearer, Seismic constraints on mantle flow and topography of the 660-km discontinuity: Evidence for whole mantle convection, Nature, 365, 506-511, 1993.

28. J. P. Morgan and D. T. Sandwell, Systematics of ridge propagation south of 30°S, Earth Planet Sci. Lett., 121, 245-258, 1994.

29. J. P. Morgan, The generation of a compositional lithosphere by mid-ocean ridge melting and its effect on subsequent off-axis hotspot upwelling and melting, Earth Planet Sci. Let., 146, 213-232, 1997.

30. J. P. Morgan, A. Harding, J. Orcutt, G. Kent, and Y. J. Chen, An observational and theoretical synthesis of the magma chamber geometry and of crustal genesis along a mid-ocean ridge spreading center, in Magmatic Processes, Chapter 7, pp.139-178, M. Ryan ed., Academic Press, San Diego, 1994.

31. J. P. Morgan, W. J. Morgan, Y.-S. Zhang, and W. H. F. Smith, Observational hints for a plume-fed, sub-oceanic asthenosphere and its role in mantle convection, J. Geophys. Res., 100, 12,753-12,767, 1995.

32. J. P. Morgan, W. J. Morgan, and E. Price, Hotspot melting generates both hotspot volcanism and a hotspot swell?, J. Geophys. Res., 100, 8045-8062, 1995.

33. J. P. Morgan and E. M. Parmentier, Crenulated seafloor: Evidence for spreading-rate dependent structure of mantle upwelling and melting beneath a mid-oceanic spreading center, Earth Planet Sci. Lett., 129, 73-84, 1995.

34. K. Jha, E. M. Parmentier, and J. P. Morgan, The role of mantle-depletion and melt-retention buoyancy in spreading-center segmentation, Earth Planet Sci. Lett., 125, 221-234, 1994.

35. J. P. Morgan and Y. John Chen, Reply, J. Geophys. Res., 99, 12,031-12,032, 1994.

36. B. P. West, J.-C. Sempéré, D. G. Pyle, J. P. Morgan, and D. M. Christie, Evidence for variable upper-mantle temperature and crustal thickness in and near the Australian-Antarctic Discordance, Earth Planet Sci. Lett.,128, 135-153, 1994.

37. Y. John Chen and J. P. Morgan, The Effects of Spreading Rate, the Magma Budget, and the Geometry of Magma Emplacement on the Axial Heat Flux at Mid-Ocean Ridges, J. Geophys. Res., 101, 11,475-11,482, 1996.

38. Donna K. Blackman, J.-Michael Kendall, Paul R. Dawson, H.-Rudolph Wenk, Donald Boyce, and J. P. Morgan, Teleseismic imaging of subaxial flow at mid-ocean ridges: Traveltime effects of anisotropic mineral texture in the mantle, Geophys. J. Int., 127, 415-426, 1996.

39. Edward T. Baker, Y. John Chen and J. P. Morgan, The relationship between near-axis hydrothermal cooling and the spreading rate of mid-ocean ridges, Earth Planet Sci. Lett.,142, 137-145, 1996.

40. J. Phipps Morgan, Thermal and rare gas evolution of the mantle, Chem. Geol., 145, 431-445, 1998.

41. Mara Yale and J. P. Morgan, Asthenosphere flow model of hotspot-ridge interactions: A comparison of Iceland and Kerguelen, Earth Planet Sci. Lett, 161, 45-56, 1998.

42. J. P. Morgan and W. Jason Morgan, Two-stage melting and the geochemical evolution of the mantle: A recipe for mantle plum-pudding, Earth Planet Sci. Lett., 170, 215-239, 1999.

43. J. P. Morgan, The isotope topology of individual hotspot basalt arrays: Mixing curves or melt extraction trajectories?, G-cubed, 1, 1999-12-13. (electronic journal, 24 manuscript pages)

44. The MELT Seismic Team, Imaging the Deep Seismic Structure beneath a Mid-Ocean Ridge: The MELT Experiment, Science, 1215-1218, 1998.

45. M. Maia, , D. Ackermand, G. Dehghani, P. Gente, R. Hekinian , D. Naar, J. O’Connor, K. Perrot, J. P. Morgan, G. Ramillien, S. Revillon, A. Sabetian, D. Sandwell, and P. Stoffers, The Pacific-Antarctic Ridge-Foundation hotspot interaction: a case study of a ridge approaching a hotspot, Marine Geology, 167, 61-84, 2000.

46. J. P. Morgan, The Thermodynamics of Pressure-Release Melting of a Veined Plum-Pudding Mantle, G-cubed, 2, 2001-4-12 (electronic journal, 65 manuscript pages).

47. G. Laske, J. P. Morgan, and J. A. Orcutt, First Results from the Hawaiian SWELL Pilot Experiment, Geophys. Res. Lett., 26, 3397-3400, 1999.

48. M. Perez-Gussinye, T. Reston, and J. P. Morgan, Rheological and magmatic evolution of non-volcanic margins during progressive extension — the effect of initial lithospheric structure, in “Non-volcanic rifting of continental margins”, Geol. Soc. London Spec Pub. 187, eds. R. C. L. Wilson, R. B. Whitmarsh, B. Taylor, and N. Froitzheim, Bath, 2001.

49. K. Hoernle, R. Werner, J. P. Morgan, D. Garbe-Schoenberg, J. Bryce, and J. Mrazek, Existence of complex spatial zonation in the Galapagos plume for at least 14 m.y. Geology, 28, 435-438, 2000.

50. A. A. P. Koppers, J. P. Morgan, W. J. Morgan, and H. Staudigel, Testing the Fixed Hotspot Hypothesis using 40Ar/39Ar Age Progressions along Seamount Trails, EPSL, 185, 237-252, 2001.

51. J. P. Morgan and W. J. Morgan, Two-stage melting and noble gases: part 1, high He/Ne and He/Ar in MORB and low He/Ne and He/Ar in OIB, G^3, submitted, 2002; resubmitted, 2004.

52. L. Ruepke, J. P. Morgan, M. Hort, and J. Connolly, Are the regional variations in Central American arc lavas due to differing basaltic versus peridotitic slab sources of fluids?, Geology, 30:1035-1038, 2002.

53. H. Kopp, C. Kopp, J. P. Morgan, E. Flueh, W. Weinrebe, and W. J. Morgan, Fossil hotspot-ridge interaction in the Musicians seamount province: Geophysical investigations of hotspot volcanism at volcanic elongate ridges, J. Geophys. Res., 108, 10.1029/2002JB002015, 2003.

54. J. P. Morgan, T. J. Reston, and C. R. Ranero, Contemporaneous mass extinctions, continental flood basalts, and ‘impact signals’: Are mantle plume-induced ‘Verneshots’ the causal link, EPSL,217, 263-284, 2004.

55. J. P. Morgan, When the Earth moved, Nature,417, 487-488, 2002.

56. J. Bialas, E. R. Flueh, J. P. Morgan, K. Schlesiek, and G. Neuhaeuser, Ocean-Bottom Seismology in the Third Millennium, in "Science-Technology Synergy for Research in the Marine Environemnt: Challenges for the XXI Century, eds. L Beranzoli , P. Favoli, and G. Smriglio, Elsevier, 37-44, 2002.

57. S. Duggen, K. Hoernle, P. van den Bogaard, L. Rüpke, and J. P. Morgan, Deep Roots of the Messinian Salinity Crisis, Nature, 422, 602-606, 2003.

58. C. Ranero, J. P. Morgan, K. McIntosh, and C. Reichert, Bending-related faulting and mantle serpentinization at the Middle America trench. Nature, 425, 367-373, 2003.

59. J. P. Morgan, The Ultraslow Difference, Nature, 426, 27, 2003

60. T. Reston and J. P. Morgan, Continental geotherm and the evolution of rifted margins, Geology, 32, 133-136, 2004.

61. L. Ruepke, J. P. Morgan, M. Hort, and J.A.D. Connolly, Serpentine and the subduction zone water cycle, EPSL, 223, 17-34, 2004.

62. J. P. Morgan, and B. Holtzman, Vug-waves: a mechanism for coupled rock deformation and fluid migration, G^3, 2005-6-8 (August 2005)

63. B. K. Holtzman, Kohlstedt, D. L., and J. P. Morgan, Viscous energy dissipation and strain partitioning in partially molten rocks, J. Pet. 46, 2569-2592, 2005.

64. Reply to A. Glikson’s comment on ‘Contemporaneous mass extinctions, continental flood basalts, and ‘impact signals’: Are mantle plume-induced lithospheric gas explosions the causal link?’, EPSL, 236, 938-941, 2005.

65. M. Pérez-Gussinyé, J. P. Morgan, T. J. Reston, C. R. Ranero, The rift to drift transition at non-volcanic margins: Insights from numerical modeling, EPSL, 244, 458-473, 2006.

66. L. Rüpke, Morgan, J. P., and J. E. Dixon, Implications of Subduction Rehydration for Earth’s Deep Water Cycle, in Earth’s Deep Water Cycle, AGU Geophysical Monograph Series 168, 263-276, Washington, 2006.

67. M. Yamamoto, Morgan, J. P., and W. J. Morgan, Global Plume-fed Asthenosphere Flow: (1) Motivation and Model Development, in Foulger, G. R., and D. M. Jurdy, eds., Plumes, Plates, and Planetary Processes, GSA Spec. Vol. 430, Boulder, 2007.

68. M. Yamamoto, Morgan, J. P., and W. J. Morgan, Global Plume-fed Asthenosphere Flow: (2) Application to the Geochemical Segmentation of Mid-Ocean Eidges, in Foulger, G. R., and D. M. Jurdy, eds., Plumes, Plates, and Planetary Processes, GSA Spec. Vol. 430, Boulder, 2007.

69. W. J. Morgan, and J. P. Morgan, Plate Velocities in the Hotspot Reference Frame, in Foulger, G. R., and D. M. Jurdy, eds., Plumes, Plates, and Planetary Processes, GSA Spec. Vol. 430, Boulder, 2007.

70. G. Laske, Morgan, J. P., and J. A. Orcutt, The Hawaiian SWELL Pilot Experiment — Evidence for Lithosphere Rejuvenation from Ocean Bottom Surface Wave Data, in Foulger, G. R., and D. M. Jurdy, eds., Plumes, Plates, and Planetary Processes, GSA Spec. Vol. 430, Boulder, 2007.

71. J. P. Morgan, J. Hasenclever, M. Hort, L. Rüpke, & E. M. Parmentier, On subducting slab entrainment of buoyant asthenosphere, Terra Nova, 19, 167-173, 2007.

72. F. Storti, Salvini, F., Rossetti, F., and J. P. Morgan Intraplate termination of transform faulting within the Antarctic continent, EPSL, 260, 115-126, 2007.

73. M. Pérez-Gussinyé, T. Lowry, J. P. Morgan, A. Tassara, Effective Elastic Thickness variations along the Andean margin and their relationship to subduction geometry, G^3, doi:10.1029/2007GC001786, 2008.

74. M. Yamamoto, and J. P. Morgan, North Arch volcanic fields near Hawaii are evidence favoring the restite-root hypothesis for the origin of hotspot swells, Terra Nova, 21, 452-466, 2009.

75. L. Rüpke and J. P. Morgan, Neptun, Pluto, und die tiefen Wasserkreisläufe unseres Planeten Erde, in Expedition Erde, ed. G. Wefer, 102-109, GeoUnion-Alfed Wegener Stiftung, Bremen, 2006

76. F. C. Lohmann, M. Hort, and J. P. Morgan, What controls the compositional signatures of Ocean Island Basalts: A deep source or shallow entrainment?, Earth Planet. Sci. Lett., 284, 553-563, 2009.

77. V. M. Tiwari, I. Grevemeyer, B. Singh, and J. P. Morgan, Variation of effective elastic thickness and melt production along the Deccan Reunion hotspot track, EPSL, 264, 9-21, 2007.

78. C. R. Ranero, A. Villasenor, J. P. Morgan, and W. Weinrebe, Relationship between bend-faulting at trenches and intermediate-depth seismicity, G-Cubed, 6, Q12002, DOI: 10.1029/2005GC000997, 2005.

79. J. P. Morgan, Ranero, C. R., and P. Vannucchi, Intra-arc extension in Central America: Links between plate motions, tectonics, volcanism, and geochemistry, Earth Planet. Sci. Lett., 272, 365-371, doi:10.1016/j.epsl.2008.05.004, 2008.

80. G. V. Depine, C. L. Andronicos, and J. P. Morgan, Near-isothermal conditions in the middle and lower crust induced by melt migration, Nature, Nature, 452, 80-83, 2008.

81. C. L. Andronicos, J. P. Morgan, J. M. Chang, and D. E. Wolf, Melt-filled hybrid fractures in the oceanic mantle: Melt enhanced deformation during along-axis flow beneath a propagating spreading ridge axis, Earth Planet. Sci. Lett., 273, 270-278, 2008.

82. A. Dannowski, I. Grevemeyer, C. R. Ranero, G. Ceuleneer, M. Maia, J. P. Morgan, and P. Gente, Seismic structure of a core complex on the Mid-Atlantic Ridge at 22°19’N, J. Geophs. Res, doi:10.1029/2009JB006943, 2010.

83. P. Vannucchi, F. Remitti, J. P. Morgan, and G. Bettelli , Aseismic-seismic Transition and Fluid Regime along Subduction Plate Boundaries and a Fossil Example from the Northern Apennines of Italy, in Fault-zone Properties and Earthquake Rupture Dynamics (International Geophysics Series, Vol. 94), ed. E. Fukuyama, Academic Press, 2009.

84. M. Tirone, Ganguly, J., and J. P. Morgan, Modeling petrological geodynamics in the Earth’s mantle, Geochemistry, Geophysics, Geosystems, 10, doi:10.1029/2008GC002168, 2009.

85. P. Clift, P. Vannucchi, and J. P. Morgan, Crustal redistribution, crust-mantle recycling, and Phanerozoic evolution of the continental crust, Earth Science Reviews, doi:10.1016/j.earscirev.2009.10.003, 2009.

86. K. Iyer, L. H. Rüpke, and J. P. Morgan, Exploring the feedback between mantle hydration and hydrothermal convection at ocean spreading centers – new insights from numerical modeling, Earth Planet. Sci. Lett., 296,34-44, 2010.

87. R. C. Holmes, M. Tolstoy, A. J. Harding, J. A. Orcutt, J. P. Morgan, Australian Antarctic Discordance as a simple mantle boundary, GRL 37, doi:10.1029/2010GL042621, 2010.

89. A. Dannowski, I. Grevemeyer, J. Phipps. Morgan, C. R. Ranero, M. Maia, and G. Klein, Crustal structure of a propagating ridge segment on the Mid-Atlantic Ridge – 21.5° N, Geochemistry, Geophysics, Geosystems 12. Q07012 DOI 10.1029/2011gc003534, 2011.

90. S. Thiessen-Krah, L. Rüpke, K. Iyer, and J. Phipps Morgan, Coupled mechanical and hydrothermal modeling of crustal accretion at intermediate to fast spreading ridges, Earth and Planetary Science Letters, 311, 275-286, 2011.

91. J. Hasenclever, J. P. Morgan, M. Hort, and L. H. Rüpke, 2D and 3D numerical models on compositionally buoyant diapirs in the mantle wedge, Earth and Planetary Science Letters, 311, 53-68, 2011.

92. P. Vannucchi, F. Sage, J. P. Morgan, F. Remitti, and J.-Y. Collot, Towards a dynamic concept of the subduction channel at erosive plate margins with implications for interpolate material transfer, Geochemistry, Geophysics, Geosystems, 13, doi:10.1029/2011GC003846, 2012.

93. M. Tirone, G. Sen, and J. P. Morgan, Petrological geodynamic modeling of mid-ocean ridges , Physics of the Earth and Planetary Interiors, 190-191, 51-70, 2012.

94. K. Iyer, L. H. Rüpke, J. P. Morgan, and I. Grevemeyer, Controls of faulting and reaction kinetics on serpentinization and double Benioff zones, Geochemistry, Geophysics, Geosystems 13, Q09010, 18 PPdoi:10.1029/2012GC004304, 2012.

95. J. P. Morgan, J. Hasenclever, and C. Shi, New observational and experimental evidence for a plume-fed asthenosphere, EPSL, 366, 99-111, 2013.

96. P. Vannucchi, P. B. Sak, J. P. Morgan, K. Ohkushi, K. Ujiie, and the IODP Expedition 334 Shipboard Scientists, Rapid pulses of uplift, subsidence, and subduction erosion offshore Central America: Implications for building the rock record of convergent margins, Geology 41, 995-998, 2013.

97. P. Vannucchi , J. P. Morgan, C. Andronicos, C. Daniel, and W. J. Morgan, Direct evidence of ancient shock metamorphism at the site of the 1908 Tunguska event, EPSL, 409, 168-174, 2015.

98. P. Vannucchi and J.P. Morgan, (2015) Reply to Comment on: “Direct evidence of ancient shock metamorphism at the site of the 1908 Tunguska event”, by P. Vannucchi et al. [EPSL 409 (2015) 168-174]. EPSL 419, pp. 224-227, doi: 10.1016/j.epsl.2015.03.024

99. J. Hasenclever, S. Theissen-Krah, L. H. Ruepke, J. P. Morgan, K. Iyer, S. Petersen, and C. W. Devey, Hybrid shallow on-axis and deep off-axis hydrothermal circulation at fast-spreading ridges, Nature 508, 508-512, 2014.

100. J. M. O’Connor, K. Hoernle, R.D. Müller, J. P. Morgan, N.P. Butterworth, F. Hauff,, Deformation-related volcanism in the Pacific Ocean linked to the Hawaiian-Emperor Bend, Nat. Geo., 8, 393-397, 2015.

101. K. Hoernle, J. Rohde, F. Hauff, D. Garbe-Schönberg, S. Homrighausen, R. Werner, and J P. Morgan, How and when plume zonation appeared during the 132 Myr evolution of the Tristan Hotspot, Nat. Comm. 6, 2015. doi:10.1038/ncomms8799.

102. M. Andrés-Martínez, J. P. Morgan, M. Pérez-Gussinyé, L. Rüpke, A new free-surface stabilization algorithm for geodynamical modelling: Theory and numerical tests, PEPI 246, 41-51, 2015.

103. N. Cosentino, T. Jordan, L. Derry and J. P. Morgan, 87Sr/86Sr in recent accumulations of calcium sulfate on landscapes of hyperarid settings: A bimodal altitudinal dependence for northern Chile (19.58S–21.58S). G-cubed, 16(12), 4311-4328, 2016 [doi:]. 10.1002/2015GC005954

104. P. Vannucchi, J. P. Morgan, E. A. Silver, and J. W. Kluesner, Origin and Dynamics of Depositionary Subduction Margins, G-cubed, 2016, doi: 10.1002/2016GC006259.

105. J. P. Morgan, L. Rüpke, and W. White, The Current Energetics of Earth’s Interior: A Gravitational Energy Perspective, Frontiers of Earth Science, 2016. doi: 10.3389/feart.2016.00046

106. P. Vannucchi and J. P. Morgan, Subduction erosion, and the de-construction of continental crust: The Central America case and its global implications, Gondwana Research. 40, p. 184–198, 2016.

107. P. Vannucchi and J. P. Morgan, Overview of tectonics and geodynamics of Costa Rica. In: F. Tassi, R. Mora-Amador, O. Vaselli (Eds.) “Poás volcano (Costa Rica): the pulsing heart of Central America Volcanic Zone”, Book Series “Active Volcanoes of the World”. Springer-Verlag Berlin Heidelberg. ISBN 978-3-319-02155-3.

108. J. P. Morgan, Astrophysical Implications of Trace-Charged Dark Matter, MNRAS, submitted, 2016. (published online version at arXiv:1610.05798)

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