géosynclinal$1$ - traduction vers
OBSOLETE GEOLOGICAL CONCEPT
Geosyncline theory; Eugeosyncline; Orthogeosyncline; Miogeosyncline; Geosynclinal; Geanticline
géosynclinal
n. geosyncline, downward curve of the Earth's surface (Geology)
Définition
Geosynclinal
·noun the downward bend or subsidence of the earth's crust, which allows of the gradual accumulation of sediment, and hence forms the first step in the making of a mountain range;
- opposed to geanticlinal.
Wikipédia
Geosyncline
A geosyncline (originally called a geosynclinal) is an obsolete geological concept to explain orogens, which was developed in the late 19th and early 20th centuries, before the theory of plate tectonics was envisaged. A geosyncline was described as a giant downward fold in the Earth's crust, with associated upward folds called geanticlines (or geanticlinals), that preceded the climax phase of orogenic deformation.
