Geology Quiz on Branches and Concepts

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Questions and Answers

What does the term 'geology' derive from?

  • Latin and Greek roots
  • Greek words meaning Earth and study
  • Greek words meaning planet and history
  • Greek words meaning globe and logical discourse (correct)

Which areas did ancient people primarily divide geology into?

  • Historical and structural geology
  • Physical and economic geology
  • Geochemistry and marine geology
  • Physical and historical geology (correct)

What is the focus of Economic Geology?

  • Examining geological changes over millennia
  • Studying the historical events of Earth
  • Understanding Earth's ecosystems
  • Analyzing precious stones and industrial resources (correct)

Which of the following is NOT considered a main branch of geology?

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

What is emphasized in historical geology?

<p>The origin and evolution of life on Earth (C)</p> Signup and view all the answers

Which of the following materials is included in the study of economic geology?

<p>Construction-grade stones (C)</p> Signup and view all the answers

How long has Earth been undergoing geological changes according to historical geology?

<p>4.6 billion years (A)</p> Signup and view all the answers

What is the primary concern of physical geology?

<p>The study of Earth's materials and processes (A)</p> Signup and view all the answers

What is the primary focus of Historical Geology?

<p>The arrangement of earth events in chronological order (B)</p> Signup and view all the answers

Which of the following branches of geology is NOT directly associated with Historical Geology?

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

What is the significance of fossil records in Paleontology?

<p>They document the history of ancient plants and animals (B)</p> Signup and view all the answers

Which of these methods is primarily used in the study of minerals?

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

What type of evidence do body fossils provide in Paleontology?

<p>Physical remains of ancient life (B)</p> Signup and view all the answers

Which of the following best describes mineralogy?

<p>The research of chemical properties of minerals (D)</p> Signup and view all the answers

Paleoecology primarily focuses on what aspect of ancient life?

<p>Interactions between organisms and their environment (B)</p> Signup and view all the answers

Which type of fossils includes tracks and burrows?

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

What is the principal objective of an engineering geologist?

<p>To protect life and property from geological hazards (C)</p> Signup and view all the answers

Which aspect is primarily studied within geotectonics?

<p>Structural deformation of the Earth's crust (B)</p> Signup and view all the answers

What is a common research method used in geotectonics?

<p>Fieldwork observations and measurements (C)</p> Signup and view all the answers

Historical geology helps in understanding the Earth's past by reconstructing which of the following?

<p>Geological history of Earth (A)</p> Signup and view all the answers

Which field emphasizes the relationship between human-made structures and natural processes?

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

What is one main distinction between engineering geology and geological engineering?

<p>The training and experience of practitioners (B)</p> Signup and view all the answers

Which of the following contributes to the understanding of geotectonic processes?

<p>Radioactive dating and isotope analysis (B)</p> Signup and view all the answers

In which way do historical geological changes typically manifest?

<p>Periodic folding and erosion of mountains (B)</p> Signup and view all the answers

What is the end point of a river called?

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

What significant role does Lidar data play in the study of landforms?

<p>It captures quantitative attributes of vegetation. (D)</p> Signup and view all the answers

According to Playfair's law, what is true about the valleys in a river system?

<p>They adjust to ensure none join at improper levels. (C)</p> Signup and view all the answers

What is the term used for the recent crustal activity that directly offsets the land surface?

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

What characterizes the slope of a river from its head to mouth?

<p>It changes from high to low, forming a concave shape. (D)</p> Signup and view all the answers

How does the process of erosion contribute to landform formation?

<p>Erosion etches out weaker rocks into valleys. (C)</p> Signup and view all the answers

What is formed as a result of weathering of rocks?

<p>Layers of soil and smaller rock pieces (A)</p> Signup and view all the answers

What are the results of the powerful tectonic forces mentioned in the content?

<p>They fold and break rocks and build mountains. (A)</p> Signup and view all the answers

What does a hydraulic engineer primarily focus on in relation to rivers?

<p>The water flow into the river. (A)</p> Signup and view all the answers

Which aspect of geomorphic processes can be better understood through improved Lidar techniques?

<p>Human impact on geomorphic processes. (A)</p> Signup and view all the answers

What happens to the weathered products of rocks?

<p>They can be transported by water or wind. (A)</p> Signup and view all the answers

What defines the spatial configuration of valleys and ridges according to erosion processes?

<p>The underlying geologic structure. (B)</p> Signup and view all the answers

Which of the following best describes a river's head?

<p>The starting point of a river. (C)</p> Signup and view all the answers

Why is understanding geologic structures critical for resources like metallic ores and petroleum?

<p>They are often located along or near geologic structures. (D)</p> Signup and view all the answers

What is indicated by the concave shape of a river's slope?

<p>The slope decreases smoothly from head to mouth. (B)</p> Signup and view all the answers

What is often the result of repeated tectonic forces acting on rocks?

<p>Complex geological formations that are hard to interpret. (A)</p> Signup and view all the answers

What is the primary feature of river erosion?

<p>It is characterized by turbulent currents affecting all directions. (D)</p> Signup and view all the answers

Which process involves the mechanical wear down of river beds by transported materials?

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

What occurs when the river loses velocity and cannot transport its load?

<p>Deposition of alluvial materials (D)</p> Signup and view all the answers

How does hydraulic action contribute to river erosion?

<p>By the force of fast-moving water dislodging materials (A)</p> Signup and view all the answers

Which type of river load consists of fine particles like sand, silt, and clay?

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

Which factor does NOT influence the abrasion of rock fragments during corrasion?

<p>The volume of water in the river (D)</p> Signup and view all the answers

What happens to the size of alluvial deposits as the river flows from its head to its mouth?

<p>The size decreases towards the mouth (A)</p> Signup and view all the answers

What is attrition in the context of river processes?

<p>The impact between sediment particles carried by the river (D)</p> Signup and view all the answers

Flashcards

Physical Geology

The study of the Earth's materials, like minerals and rocks, and the processes happening inside and on the planet's surface.

Historical Geology

The study of the history of Earth: how it evolved, life on Earth, and past events including the formation of continents and oceans.

Economic Geology

A branch of geology that studies how to find and utilize Earth's resources for economic benefit.

Mineralogy

The study of minerals and their properties.

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Petrology

The study of rocks, their formation, composition, and classification.

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Paleontology

The study of ancient life on Earth through fossils.

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Structural Geology

The study of the structure of the Earth's crust and how it deforms, focusing on features like folds and faults.

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Geotectonics

The study of the Earth's interior, including its composition, structure, and processes like earthquakes and volcanoes.

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Body Fossils

Fossils that are the actual preserved remains of organisms like bones, shells, or teeth.

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Trace Fossils

Fossils that are indirect evidence of organisms, like tracks, burrows, or fossilized footprints.

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Evolution of Life on Earth

The study of the development of life on Earth over time, examining how species have evolved and changed.

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Geochemical Evidence

The preserved chemical traces of ancient organisms, which can help us understand the evolution of life.

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Engineering Geology

The study of how natural processes affect human-made structures and vice versa, and how to mitigate associated risks.

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Geology on a Global Scale

Geotectonics focuses on the Earth's history and global phenomena.

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Reconstructing Earth's History

This field utilizes geological principles to understand and reconstruct past geological events.

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Geological Changes Over Time

Changes in the Earth's surface caused by tectonic activity are studied.

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Mountain Formation

Areas of the Earth's crust under stress can fold and create mountains.

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Erosion and Deposition

Over time, mountains erode and their material is deposited in lower areas.

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River Erosion

The process of wearing down or breaking down rocks and soil by the force of water.

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Corrasion

The abrasive force of sediments carried by a river that rubs against and wears down rocks and the riverbed.

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Corrosion

The dissolving of rocks and minerals by the water in a river.

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Attrition

The grinding and wearing down of sediments carried by a river as they collide with each other.

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Hydraulic Action

The force of fast-flowing river water that can dislodge materials from the riverbanks and bed.

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River Transportation

The movement of eroded materials downstream by a river.

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River Deposition

The process of eroded materials being deposited by a river when the water's velocity slows down.

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Alluvial Deposits

The materials deposited by a river, typically composed of sand, silt, and clay.

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Geologic Structures

Landforms created by tectonic forces, either directly through offsetting (like faults) or indirectly through erosion of differently resistant rocks.

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Erosion of Differing Rock Resistance

The process of weathering and erosion that carves out the Earth's surface, shaped by the underlying geologic structure.

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Ecohydrology

The study of how water and its interaction with the Earth's surface affects the environment.

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Ecogeomorphology

The study of how landforms are shaped by the interaction of biological and geological processes, particularly erosion.

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Repeat LiDAR Scans

Using LiDAR (Light Detection and Ranging) technology to repeatedly scan an area over time, allowing scientists to track changes in the Earth’s surface.

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Change Detection

The process of analyzing LiDAR data to identify and quantify changes in terrain, vegetation, and other features.

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High Resolution Topography

The ability of LiDAR to measure the Earth's surface with incredible detail, capturing the precise shape of terrain and vegetation.

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What is physical weathering?

The breakdown of rocks into smaller pieces or soil, but with the same composition.

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What happens to weathered material?

Weathered materials can be transported by wind or water, creating new landscapes.

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What is regolith?

The layer of weathered rock and soil that sits on top of solid bedrock.

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What are the main types of weathering?

Weathering occurs through various processes, including physical, chemical, and biological.

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What is Playfair's Law?

The concept that a river system, from its source to its mouth, is a dynamic and interconnected system.

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What is the role of rivers in geomorphology?

Rivers act as agents of transportation, distributing weathered material across the earth's surface.

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What are the head and mouth of a river?

The beginning of a river is called the 'head' and the end is called the 'mouth'.

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What is the typical slope profile of a river?

The slope of a river decreases from its head to its mouth, resulting in a concave curve.

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Study Notes

Table of Contents

  • Engineering Geology for Civil Engineers (2019)
  • Table of Contents (page numbers in the document)
  • Chapter 1: General Geology (page numbers in the document)
  • Chapter 2: Mineralogy (page numbers in the document)
  • Chapter 3: Petrology (page numbers in the document)
  • Chapter 4: Structural Geology and Rock Mechanics (page numbers in the document)
  • Chapter 5: Geological and Geophysical Investigation in Civil Engineering (page numbers in the document)
  • Lesson 1: Geology in Civil Engineering (page numbers in the document)
  • Lesson 2: Branches of Geology (page numbers in the document)
  • Lesson 3: Earth Structure and Composition (page numbers in the document)
  • Lesson 4: Elementary Knowledge on Continental Drift and Plate Tectonics (page numbers in the document)
  • Lesson 5: Earth Processes (page numbers in the document)
  • Lesson 6: Weathering (page numbers in the document)
  • Lesson 7: Works of Rivers, Wind and Sea and their Engineering Importance (page numbers in the document)
  • Lesson 8: Origin, Occurrence of Earthquake (page numbers in the document)
  • Lesson 9: Mode of Occurrence (page numbers in the document)
  • Lesson 10: Geological Prospecting (page numbers in the document)
  • Lesson 11: Ground Water (page numbers in the document)
  • Lesson 12: Importance of Geology in Civil Engineering (page numbers in the document)
  • Chapter 2: Mineralogy (page numbers in the document)
  • Lesson 1: Elementary Knowledge on Symmetry of Crystallographic Systems (page numbers in the document)
  • Lesson 2: Physical Properties of Minerals (page numbers in the document)
  • Lesson 3: Properties, Process of Formation of All Minerals (page numbers in the document)
  • Lesson 4: Coal and Petroleum (page numbers in the document)
  • Lesson 5: Their Origin and Occurrence in India (page numbers in the document)
  • Chapter 3: Petrology (page numbers in the document)
  • Lesson 1: Classification of Rocks (page numbers in the document)
  • Lesson 2: Distinctions Between the Three Main Types of Rocks (page numbers in the document)
  • Lesson 3: Igneous Rocks (page numbers in the document)
  • Chapter 4: Structural Geology and Rock Mechanics (page numbers in the document)
  • Lesson 1: Attitude of Beds (page numbers in the document)
  • Lesson 2: Outcrops (page numbers in the document)
  • Lesson 3: Geological Maps, Geophysical Explorations and Boring in Soils (page numbers in the document)
  • Lesson 4: Seismic and Electrical Method (page numbers in the document)
  • Lesson 5: Core Boring (page numbers in the document)
  • Lesson 6: Logging of Cores (page numbers in the document)
  • General Questions and Answers (page numbers)
  • References (page numbers)

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