A Discussion on the measurement and interpretation of changes of strain in the Earth - Arrangement of convection in the Earth by lunar gravity

Abstract
Earth strain is found to have dependence on latitude. The possibility is explored that the external gravitational couple is a factor in tectonism . Evidence suggests that where extension is induced in a layer in which melting is limited by pressure, liquefaction and upwelling result. It is then to be expected that the Earth’s internal heat is dissipated by convection ordered (but not caused) by the tidal couple. Upwelling takes place in high latitudes and in the ocean basins and is marked by seafloor spreading. Replacement at depth is effected in low latitudes, at the site of geoidal highs and deepseated seismicity. A n excess in the equatorial potential is associated with the excess of deformation in low latitudes. There then seems no reason to suppose that convection is confined to the upper mantle. The effect at surface is that the lithosphere is displaced west, at an angular velocity greatest at the Equator and varying regionally. As a result this shell segments, and the segments rotate and interact.

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