<P> Regarding oceans Kober held them to be strictly different to geosynclines . Kober further held that mid-ocean ridges were orogens, while Stille disagreed showing that they, as seen in Iceland, were places of extensional tectonics . Argand on the other side argued that geosynclines that stretched enough could turn into oceans basins as a material called sima surfaced . </P> <Table> Hans Stille's classification <Tr> <Th> Geosyncline type </Th> <Th> Geosyncline subtype </Th> <Th> Initial magmatism </Th> <Th> Resuting mountain type </Th> </Tr> <Tr> <Td_colspan="1"> Orthogeosyncline </Td> <Td> Eugeosyncline </Td> <Td_colspan="1"> Yes </Td> <Td_colspan="1"> Alpinotype </Td> </Tr> <Tr> <Td> Miogeosyncline </Td> <Td> No </Td> </Tr> <Tr> <Td_colspan="2"> Parageosyncline </Td> <Td> No </Td> <Td> Germanotype </Td> </Tr> </Table> <Tr> <Th> Geosyncline type </Th> <Th> Geosyncline subtype </Th> <Th> Initial magmatism </Th> <Th> Resuting mountain type </Th> </Tr> <Tr> <Td_colspan="1"> Orthogeosyncline </Td> <Td> Eugeosyncline </Td> <Td_colspan="1"> Yes </Td> <Td_colspan="1"> Alpinotype </Td> </Tr>

The greatest geosyncline from which the himalayas is assumed to have originated is known as