Geology Chapter 2: Geological Evolution and Structure
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Questions and Answers

What is the primary focus of historical geology?

  • Study of the earth's crust
  • Formation of rocks during eras
  • Patterns of development of the earth's crust in time and space (correct)
  • Study of the earth's atmosphere

What is the name given to rocks formed during an era?

  • Period
  • Era
  • System
  • Group (correct)

How old is the Pre-Cambrian era?

  • Between 400-570 million years old
  • Over 570 million years old (correct)
  • Between 245-570 million years old
  • Over 400 million years old

What is the name of the Indian geological era that is 400-570 million years old?

<p>Dravidian (D)</p> Signup and view all the answers

Why are the Pre-Cambrian rocks named so?

<p>Because they are named after Cambria, the Latin name for Wales (D)</p> Signup and view all the answers

What type of fossils are found in the Cenozoic era?

<p>Recent life forms (B)</p> Signup and view all the answers

What is the process of plain formation that is still continuing?

<p>Deposition of sediment by rivers (D)</p> Signup and view all the answers

What is the study of folds and faults including igneous activities associated with their formation?

<p>Geological structure (B)</p> Signup and view all the answers

What is the characteristic of the Himalayan Mountains?

<p>A young mountain of soft rocks (D)</p> Signup and view all the answers

What is the study of the formation and development of surface features of land?

<p>Physiography (D)</p> Signup and view all the answers

What is the characteristic of the Peninsular Plateau?

<p>An old landmass of hard rocks (C)</p> Signup and view all the answers

What is the lithological study of rock beds, sequence of their occurrences and their thickness and age?

<p>Stratigraphy (B)</p> Signup and view all the answers

What is the geological term for the process of mountain building?

<p>Orogenic (A)</p> Signup and view all the answers

What is the name of the plate that the Peninsular Plateau is a part of?

<p>Indo-Australian Plate (A)</p> Signup and view all the answers

What is the name of the sea that existed in the Himalayan area till the Mesozoic era?

<p>Tethys Sea (D)</p> Signup and view all the answers

What is the characteristic of the river valleys in the Peninsular Plateau?

<p>Shallow with low gradients (A)</p> Signup and view all the answers

What is the name of the plateau that is surrounded by sea on three sides?

<p>Peninsular Plateau (C)</p> Signup and view all the answers

What is the shape of the Himalayan mountain system?

<p>Arc-shaped (A)</p> Signup and view all the answers

What is the term used to describe the geological structure of the Peninsular Plateau?

<p>Horst (B)</p> Signup and view all the answers

Which of the following rock systems contains the first formed rocks of the earth?

<p>Archean System (B)</p> Signup and view all the answers

What is the characteristic of the rivers in the Himalayas?

<p>Torrential (A)</p> Signup and view all the answers

What is the main type of rocks found in the Peninsular Plateau?

<p>Igneous (A)</p> Signup and view all the answers

Which of the following groups corresponds to the first half of the Pre-Cambrian era?

<p>Archean (D)</p> Signup and view all the answers

What is the shape of the Peninsular Plateau?

<p>Triangular (C)</p> Signup and view all the answers

What type of rocks are formed due to intensive volcanic activity in Maharashtra and other parts of the Deccan?

<p>Deccan Traps (B)</p> Signup and view all the answers

During which period did the peninsula experience crustal movements leading to the formation of basin shaped depressions?

<p>Upper Carboniferous Period (A)</p> Signup and view all the answers

Where are the Dravidian rocks found in continuous sequence?

<p>In the Himalayas (B)</p> Signup and view all the answers

What type of rocks contain coal deposits and show marks of climatic changes?

<p>Gondwana Rocks (B)</p> Signup and view all the answers

Where are the Gondwana Rocks mainly found?

<p>In the Damodar, Mahanadi and Godavari valleys (A)</p> Signup and view all the answers

What type of rocks are found in the northern part of the central Himalayan axis?

<p>Palaeozoic Rocks (C)</p> Signup and view all the answers
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