Test 1 Flashcards
What part of earth materials is part of the regolith?
Loose heterogeneous material on the surface
The term planetary differentiation refers to the process in which…
Layers formed based on differences and composition
Differentiation of the inner planets probably means that each of the rocky planetary bodies…
Has layers
Which of the inner planets has an atmosphere containing mostly nitrogen and has an average surface temp. of 14.6 degrees Celsius?
Earth
Which of the inner planets has a regolith that is largely the product of whethering?
Earth
Of the other inner planets of the solar system, earth most closely resembles…
Venus
The “plates” in earths plate tectonics are made of fragments of…
Lithosphere
The principle of uniformitarianism tells us that…
Present is key to the past
The principle of uniformitarianism is based on…
The present is key to the past
The study of geology is important to human society because…
Dependent on earth for resources, we live on the planet, need to understand
The tectonic cycle refers to the set of crustal processes that form new rock, modify it,transport it and break it down.
False
The nebular theory proposes that the solar system coalesced out of a swirling cloud of interstellar dust and gas.
True
Earth is the only planet we know of that contains water.
Too vague, but false
Continental crust is thicker and less dense than oceanic crust.
True
Hutton’s principle of uniformitarianism says that the rate of change on earth is constant.
False
Activity on earths surface has erased all traces of ancient meteorite impacts, such as those still visible on the moon.
False
The innermost planets of the solar system are also referred to as the…… Planets because their similarities to earth
Terrestrial
The….. Forms the outermost compositional layer of the solid earth
Crust
The….. Is the innermost compositional layer of the solid earth
The core
What term best describes the rocky outer layer of the earth?
Lithosphere
Which type of plate boundary results from two or more plates coming together?
Convergent
According to the picture below, which of the following types of plate boundaries produce the deepest earthquakes?
Subduction zone boundary
According to the figure above, in which of the following types of plate boundaries “new” sea floor is being produced?
Divergent boundary
What term best describes to driving force behind plate tectonics?
Convection
Where is the best example of continental crust colliding with continental crust today?
Himalayas
According to the diagram below, which of the plates is all oceanic crust?
Pacific plate, cocos, the NASCAR plate, Philippine plate
The plates ‘floating’ on the atmosphere is a condition called …, which is similar to wood floating on water.
Isostazy
According to the figure below, the island of Molokai was probably over the hot spot approximately how many million years ago?
1.2 - 2ma
Pangea is the name of the supercontinent proposed by Harry Hess.
False; Alfred Wegener
The Hawaiian islands are a result of the pacific plate passing over a hot spot.
True
South America and Africa are the example that Wegener used for continental drift.
True
As rocks cool, they become denser and sink
True
Paleomagnetic data provide evidence for the geographic position of continents in the past
True
The Andes mountains are a good example of oceanic-oceanic collision
False;
A hypothesis is a scientific theory that has been tested
False; theory is a well tested hypothesis
Rocks closer to the spreading centers in the oceans are older than the rocks farther away from the spreading
False
Global positioning systems (GPS) are a reliable way to measure plate movements.
True
The Himalayas are a good example of oceanic-continental collision.
False; continental-continental
The Red Sea and east Africa are good examples of divergent plate boundaries
True
Obfuscation is the processes where one plate slides under another.
False; subduction zone
Wegener used glacial strait ions to help build the theory of plate tectonics.
True
The mid-ocean ridge is the deepest part of the Atlantic Ocean.
False
In the northern part of Pangea, mountain ranges tend to match up in North American and Europe.
True
The magnetic stripes on the opposite sides of the central Rift Valley are mirror images, therefore good for age dating.
True
