Geological Structure
Geological Structure
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quiz Questions
Q11
The Mesozoic Gondwana rock formations in India are primarily found in which of the following geographic features?
Rift Valleys and River Basins
High Himalayan Peaks
Coastal Sand Dunes
Desert Playas
Explanation
Gondwana rock formations are structurally preserved within synclinal troughs and rift valleys, most notably along the Damodar, Mahanadi, and Godavari river basins.
Q12
What is the structural term for the deep structural trough that filled with alluvium to form the Great Northern Plains of India?
Rift Valley
Himalayan Foredeep
Horst Structure
Graben
Explanation
Geologically, the Northern Plains developed in a foredeep basin (foredeep) formed in front of the rising Himalayan mountain belt.
Q13
The 'Tertiary Rock System' in India is most significant for hosting rich deposits of which energy resource?
Uranium
Petroleum and Natural Gas
High-grade Anthracite Coal
Geothermal energy
Explanation
Tertiary rocks in India, located in areas like Assam, Gujarat, and offshore Bombay High, are the primary repository of petroleum and natural gas reserves.
Q14
Which structural boundary zone forms the tectonic interface where the Indian subcontinent collides with Eurasia under the Himalayas?
Main Central Thrust
Indus-Tsangpo Suture Zone (ITSZ)
Main Boundary Fault
Himalayan Frontal Thrust
Explanation
The Indus-Tsangpo Suture Zone (ITSZ) marks the collision zone or suture line between the Indian Plate and the Eurasian Plate to the north.