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Dick Chase schrieb: > The phrase "Orthotectonic Caledonides of Scotland" sent me to my > "Glossary of Geology" to see what orthotectonics meant. > I then looked up "Orthogeosyncline" and found it to be "A geosyncline > between volcanic and continental cratons, containing both volcanic > (eugeosynclinal) and non volcanic (miogeosynclinal) belts (Stille, > 1935, pp. 77-97). > I feel uneasy about use of the prefix "ortho" in > the orthotectonics if it is meant to refer to the concept of > orthogeosyncline" which has disappeared from the modern literature. > Can anyone enlighten me with a more up to date definition of > "orthotectonics"? Oh boy. An orthogeosyncline is Hans Stille's preferred type of geosyncline, nothing else. And Hans Stille has been dead for many years. And a geosyncline is an obsolete concept. It was a concept that was developed before the discovery of plate margins. Deign the entire concept with benign neglect, and read a book like Moores & Twiss or something. But do not embarrass your German colleagues by mentioning Stille or his musings. And someone might suggest to the glossary compilers to purge their tomes. Falk Koenemann _____________________________________________________________________ | Dr. Falk H. Koenemann Aachen, Germany | | | | Email: [log in to unmask] Phone: *49-241-75885 | | | | URL: http://home.t-online.de/home/peregrine/hp-fkoe.htm | | stress elasticity deformation of solids plasticity strain | |_____________________________________________________________________|