Chapter 1 Flashcards

0
Q

Physical geology

A

Examines the materials comprising earth and seems to understand the many processes that operate beneath and upon it’s surface

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1
Q

Geology

A

The science that pursues an understanding of planet earth

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2
Q

Historical geology

A

Study of the origin of earth and it’s development through time

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3
Q

Hydrosphere

A

A dynamic mass of water that is continually on the move, evaporating from the oceans, to the atmosphere, precipitating to the land, and running back to the ocean again.

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4
Q

Atmosphere

A

Life giving gaseous envelope surrounding earth

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5
Q

Biosphere

A

Includes all life on earth

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6
Q

Geosphere

A

Solid earth that lays beneath the atmosphere and ocean

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7
Q

Earth system science

A

Aims to study earth as a system composed of numerous interacting parts, or subsystems

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8
Q

System

A

Any size group of interacting parts that form a complex whole

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9
Q

Closed system

A

Self containing with regard to matter

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10
Q

Open system

A

Energy and matter flow into and out of the system, most natural systems

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11
Q

Negative feedback

A

Works to maintain status quo

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12
Q

Positive feedback

A

Mechanisms that work to enhance or drive change

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13
Q

Hydrologic system

A

Evap, condensation, precipitation

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14
Q

Interface

A

A common boundary where diff parts of a system come in contact and interact

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15
Q

Energy sources for the earth system

A

Sun drives external processes that occur in the atmosphere and hydrosphere and at earth’s surface, also earths interior

16
Q

Catastrophism

A

Earth’s landscape have been shaped by great catastrophes

17
Q

Uniformitarianism

A

The physical, chemical, and biological laws that operate today have also operates in the geologic past

18
Q

Age of Earth

A

4.6 billion years

19
Q

Relative dating

A

Events are places in their proper sequence or order without knowing their age in years

20
Q

Law of superposition

A

A layer is older than the one above it and younger than the ones below

21
Q

Principle of fossil succession

A

Fossil organisms succeed one another in a definite and determinate order and therefore any time period can be recognized by it’s fossil content

22
Q

Hypothesis

A

Tentative explanation

23
Q

Theory

A

A well tested and widely accepted view that the scientific community agrees best explains certain observable facts

24
Q

Continental drift

A

The idea that the continents moved about the face of the planet

25
Q

The theory of plate tectonics

A

Provide geologists with the first comprehensive model of earth’s internal workings