Geosyncline YouTube Lecture Handouts

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Geosynclines - Formation, 2 Hypothesis & 7 Types

GEOSYNCLINES

Geosyncline Iamge-1

Geosyncline Iamge-2

Geosyncline Iamge-3

Mechanism of Formation of Geosyncline

Evolution of Geosyncline

Hypothesis of Evans
Hypothesis of Holmes

STAGES of Geosyncline by Holmes

Stages of Geosyncline Image

Order of Geosyncline by Holmes

Types of Geosyncline

Types of Geosyncline Image-1

Types of Geosyncline

Orthogeosyncline
Eugeosyncline
Miogeosyncline
Taphrogeosyncline
Par geosyncline
Zeugogeosyncline
Auto geosyncline

By Schuchert

Monogeosynclines

Exceptionally long and narrow tracts
Situated either within a continent or along the littoral areas
Pass through only one cycle of sedimentation and mountain-building.
Appalachian geosyncline

Polygeosynclines

Broader than monogeosynclines
Longer period of existence
More than one phase of orogenesis
The Rockies and Ural geosynclines
Exhibit complex parallel anticlines called geanticlines.

Mesogeosynclines

Surrounded by continents
Complex geological history

Types of Geosyncline Image-2

✍ Manishika