Whittaker et al. (Reports, 5 October 2007, p. 83) presented reconstructions for Australia and Antarctica showing a change in relative plate motion approximately 53 million years ago, coincident with an inferred major global plate reorganization. This comment addresses problematic areas in their assumptions and the geological consequences of their reconstructions.

steel porous plates. Various control options for the tension applied to these porous plates have been advocated. The composition and quantity of leachate as it moves down through The simplest being zero tension, where no capacity to the vadose zone is seldom measured directly because sampling in this unsaturated zone at the depths required has proven to be extremely exert a tension on the plate...

Biomechanics of fracture fixation and testing of mechanical properties of bone/implant construct from the viewpoint of checking the strength and resistance ability to acting forces are of current interest. Computer modelling known as mathematical modelling is regarded as an alternative to mechanical testing of properties on a testing machine. As a result, we get a 3D model of a real object (i.e...

Motivated by the Holocene history of great Cascadia earthquakes proposed by Goldfinger et al. (2012), we developed a simple model by which we can examine this further. Combining their observation that the plate boundary ruptures in four characteristic segment types with an empirical area versus seismic moment relation and an assumption of constant stress drop, we obtain a model for the along-st...

Bull, J.M., 1990. Structural style of intra-plate deformation, Central Indian Ocean Basin: evidence for the role of fracture zones. Tectanophysics, 184: 213-228. The structural style of the intraplate defo~ation developed in the Central Indian Ocean Basin was investigated in an area (7S” E-82* E, 0aS4i0S) to the west of the Afanasy Nikitin seamount using an integrated data set of seismic reflec...

Middle ear is separated from middle cranial fossa by thin plate of bone known as tegmen tympani and from the sigmoid sinus by sinus plate. The chronic middle ear disease such as granulation or Choesteotoma can errode tegmen tympani or posteriorly the sinus plate and lead to intracranial complications. The most important to otolaryngologist is the brain abscess and sinus thrombophlebitis. Any pa...

The proximity effect is very significant to investigate transient peak voltages and EMC related problems of a conductor system. In this paper, effect of energized single conductor in close proximity of an Al plate when an Al plate is used as return path is investigated to find out proximity effect. The analysis involves simulation by the Finite Time Domain Method (FDTD) in comparison with field...

In recent years, the nature of the complex interactions between the solid earth and the overlying atmosphere has been the subject of much debate (England and Molnar 1990; Whipple et al. 1999; Braun et al. 1999). Does erosion play an important role in the dynamics of mountain building? Is there a strong feedback into the balance of forces at the crustal scale from mass transport by erosional and...