Browsing ELibrary by Author "Hager B.H."

Browsing ELibrary by Author "Hager B.H."

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  • ENTRAINMENT OF A DENSE LAYER BY THERMAL PLUMES 
    Zhong Sh.; Hager B.H. (2003)
    The large mismatch between Earth's heat flux and that which would be produced in a uniform mantle with the composition of the mid-ocean ridge basalt source region, and several recent seismic models, suggest that the bottom ...
  • GIANT METEOROID IMPACTS CAN CAUSE VOLCANISM 
    Elkins-Tanton L.T.; Hager B.H. (2005)
    We present a model to assess the viability of the creation of volcanic eruptions of up to flood-basalt size from a giant impactor striking a relatively thin lithosphere. A 300-km-radius crater in 75-km-thick lithosphere ...
  • MANTLE CONVECTION WITH STRONG SUBDUCTION ZONES 
    Conrad C.P.; Hager B.H. (2001)
    Because mantle viscosity is temperature-dependent, cold subducting lithosphere should be strong, which implies that the rapid, localized deformation associated with subduction should strongly resist plate motions. Due to ...
  • RE-EXAMINATION OF THE LUNAR MAGMA OCEAN CUMULATE OVERTURN HYPOTHESIS: MELTING OR MIXING IS REQUIRED 
    Elkins Tanton L.T.; Van Orman J.A.; Hager B.H.; Grove T.L. (2002)
    There is a long-standing hypothesis that the last fraction of the lunar magma ocean crystallized into a layer of dense, Ti-rich cumulate minerals at shallow depths (~100 km) early in the moon's history. Many questions ...
  • STABILITY AND DYNAMICS OF THE CONTINENTAL TECTOSPHERE 
    Shapiro S.S.; Hager B.H.; Jordan T.H. (1999)
    Continental cratons overlie thick, high-viscosity, thermal and chemical boundary layers, where the chemical boundary layers are less dense than they would be due to thermal effects alone, perhaps because they are depleted ...
  • THE CURRENT DISTRIBUTION OF DEFORMATION IN THE WESTERN TIEN SHAN FROM BLOCK MODELS CONSTRAINED BY GEODETIC DATA 
    Meade B.J.; Hager B.H. (2001)
    We interpret Global Positioning System measurements of interseismic deformation throughout the western Tien Shan in the context of a block model which accounts for important geologic features (faults) and physical processes ...