who originated the geosynclinal theory of the structure of the earth
Geosyncline The geosyncline concept was first developed by the American geologists James Hall and James Dwight Dana in the mid-19th century during the classic studies of the Appalachian Mountains.[1][4] Émile Haug actualized the geosyncline concept and "reintroduced" it to Europe with a 1900 publication.[5][6] Eduard Suess, a leading geologist of his time, disapproved the concept of geosyncline and argued in 1909 against its use due to its associated theories.[6][7] This did not stop further development of the concept by Leopold Kober and Hans Stille in the first half of the 20th century,[8] both of whom worked on a contracting Earth framework.[8] Stille and Kober had rather similar views.[9]