Appendix to the contribution by G.B. Engelen on the origin of the Bermuda Rise

Abstract

The basic concepts of the contribution, according to the undation theory as it stands presently are as follows. The earth’s surface is not a pure ellipsoid of rotation, but a geoid which shows extensive bulges and depressions (geo-undations). The physico-chemical processes disturb the theostatic and gyroscopic equilibrium in the deep cambium so that circulations of matter (mass circuits) result. There will be a tendency to westward drift (for example in North and South America), or to the cyclonical and anticyclonical drifting apart of the crustal fragments belonging to older continents (such as the parts of Olim-Gondwana spreading anticyclonically around the Indian Ocean). The geodynamic evolution of the earth can be seen as a chain reaction (alternation of equilibrioturbal processes of a physico-chemical character and equilibriopetal processes of a hydrodynamic character). This basic concept is neither mobilistic nor fixistic, but it does require a relativistic point of view in the analysis of the deformations of various dimensions which are superimposed on each other.