I am a (disability) retired Research Associate from the Bureau of Economic Geology, Jackson School for Geosciences. I have done extensive subsurface characterization of earth-bound petroleum accumulations and aquifers. I have an abiding interest in plate tectonics. Many studies of 'spiralling geosutures' indicate that there are planetary-scale shears in the Earth's crust. Are these associated with planetary rotation? To what extent do these features control plate movements, and do other planetary bodies exibit similar features? I have no experience in planetary science. But a melding of geologist and geophysicist is required to address my problem of interest. I'm hoping others have knowledge or interest.