Exam 1 Flashcards by GRANT WILLIAMS

What is contour interval?

The rate at which each contour line increases.

900ft to 950ft Bold line
4 non bold lines in between
= contour interval of 10ft

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What is the elevation of the highest point of the hill if the last bold line is 1000ft there is one more line with a contour interval of 20 and the point lying right in the middle of the last line.

1030ft +/- 9ft

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Are contour lines spaced further apart steeper or are closer contour lines steeper.

close lines

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Calculate the difference in latitude between City A, located at 46º23’N, and City B, located at 17º53’N.

46º23’N - 17º53’N (must borrow a degree and rewrite)

45º83’N - 17º53’N = 28º30’

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Based on this difference in latitude (previous question), calculate the north-south distance between City A and City B, in nautical miles.

Use the following conversions: 1º of latitude = 60 nautical miles

1’ of latitude = 1 nautical mile

28º x 60 n.m. per degree = 1,680 n.m.

30’ x 1 n.m. per minute = 30 n.m.

total: 1,680 n.m. + 30 n.m. = 1,710 n.m.

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A map has a scale of 1:125,000. On the map, two mountains are 11.5 centimeters apart. How far apart are the two mountains, in kilometers?

Use the following conversion: 1 kilometer = 100,000 centimeters

11.5 cm x 125,000 = 1,437,500 cm

conversion to kilometers: 1,437,500 cm / 100,000 cm. per km. =

       14.375 km (approx. 14.4 km)

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Which of the following maps would be considered the “large-scale” map, if they were all printed on the same size sheet of paper?

map of Maryville
world map
map of the united states
map of Missouri

map of Maryville

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Which of the following representative fractions represents a “small-scale” map?

1:20,000
1:2,000
1:250,000
1:15,000

1:250,000

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The latitude of 45°24’ N would appear as ________ in decimal form.

45.24°
45.4°
45.04°
- 45.4°

45.4

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Longitude is the measurement of position east or west of the ___________.

Tropic of Cancer
Tropic of Capricorn
Prime Meridian
Equator

Prime Meridian

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Lines that measure latitude on the globe are called?

Contours
Parallels
Equators
Perpendiculars

parallels

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Lines that measure longitude on the globe are called?

Arcs
Contours
Latitudes
Meridians

Meridians

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A contour is a line connecting points of

altitude
direction
interest
equal elevation

equal elevation

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Contour lines intersect.

true or false

false

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This mineral has three directions of cleavage not at 900 and reacts with hydrochloric acid.

Calcite
Fluorite
Plagioclase feldspar
Biotite

calcite

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This mineral is dark brown in color and will break into thin sheets along 1 direction of cleavage.

Biotite
Quartz
Mica
Fluorite

Biotite

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Metallic mineral that is magnetic and has a black streak.

Graphite
Sphalerite
Magnetitie
Biotite

Magnetite

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Mineral sample that will scratch glass, has two directions of cleavage with striations on one of the two.

Quartz
Calcite
Plagioclase feldspar
Fluorite

plagioclase felspar

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An iron bearing mineral that is commonly know as “fools gold.”

Graphite
Pyrite
Magnetite
Sphalerite

pyrite

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The streak of this mineral is light yellow and smells like rotten eggs, but can be used as an economic mineral for zinc.

Plagioclase feldspar
Pyrite
Talc
Sphalerite

sphalerite

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This mineral can occur in many different colors, scratches glass and may have 6-sided crystals

Quartz
Talc
Fluorite
Calcite

quartz

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Phosphorous is used to increase the fertility of the soil, what mineral might be added to increase phosphorous levels?

kaolinite
plagioclase feldspar
orthoclase feldspar
apatite

apatite

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What mineral property would you use to distinguish between hematite and limonite in a hand sample?

hardness
cleavage
color
streak color

streak color

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Select all of the minerals that are silicates.

biotite
plagioclase
olivine
magnetite
kaolinite
calcite

Study These Flashcards

biotite
plagioclase
olivine
kaolinite

Which mineral has four cleavage planes and is found in colors ranging from clear to purple? quartz biotite fluorite magnetite

fluorite

Which mineral is a nonmetallic mineral softer than the human fingernail? pyrite gypsum quartz magnetite

gypsum

Which mineral effervesces (“fizzes”) in HCL acid? muscovite calcite orthoclase halite

calcite

Which mineral is used as pencil “lead”, even though the mineral contains no lead? hematite graphite galena muscovite

graphite

Name a mineral for which specific gravity, or density, is very high due to a high lead content. biotite pyrite galena magnetite

galena

Which mineral is used as table salt? calcite halite orthoclase gypsum

halite

Which of the following is a nonsilicate mineral? all of the above orthoclase galena muscovite only A and B

galena

Which of the following igneous rocks has a fine-grained texture? granite only A and B all of the above basalt gabbro

basalt

Fine grained igneous rocks are also extrusive. True False

true

This igneous rock has a fine grained texture and mafic composition. granite andesite basalt gabbro

basalt

The extrusive counterpart to granite is..... basalt rhyolite andesite scoria

rhyolite

The slope of a volcano can be determined using the difference in elevation divided by the distance. True False

true

Shield volcanoes have steep slopes than composite cones. True False

false

The resistance of a fluid to flow is know as....... resistivity hydraulics viscosity fluid phase

viscosity

Andesite is an example of an extrusive igneous rock. True False

true

Rhyolite is an example of an intrusive igneous rock. True False

false

Determine the slope of a volcano in meters per kilometer, to the nearest whole number, given the following information: Summit elevation = 1412 m Base elevation = 805 m Distance between summit and base = 6.0 kilometers 101 m/km 10 m/km 110 m/km 100 m/km

101m/km

Determine the slope of a volcano in meters per kilometer, to the nearest whole number, given the following information: Summit elevation = 3457 m Base elevation = 629 m Distance between summit and base = 6.2 kilometers 456 m/km 645 m/km 465 m/km 500 m/km

456 m/km

Shield volcanoes are larger than composite volcanoes. True False

true

Composite volcanoes are steeper than shield volcanoes. True False

true

Composite volcanoes have low viscosity magma. True False

false

Which igneous rock texture is NOT common with extrusive rocks? glassy vesicular ("frothy") course-grained fine-grained

coarse grained

Which of the following forms of volcano is characterized by gentle slopes? cinder cone composite cone shield cone both A and B

shield cone

Which igneous rock has a compact glassy texture? pumice rhyolite obsidian basalt

obsidian

Which rock is an intrusive rock which contains an even mixture of light and dark minerals? diorite granite basalt gabbro

diorite

Which metamorphic rock is nonfoliated and harder than glass? Marble Slate Schist Quartzite

quartzite

What is a Sediment?

Sediment is a unconsolidated material produced by weathering and erosion or by chemical or biochemical precipitation.

Name the rock that forms through the metamorphism of limestone. chert marble schist quartzite

marble

Which of the following sedimentary rocks is composed of microcrystalline quartz? chert coal limestone chalk

chert

What is the parent rock of marble? Sandstone Limestone Shale Granite

limestone

The dominant mineral in chert is _______, which means that chert is hard enough to scratch glass.

quartz

The presence of bituminous coal with plant fossils indicates which type of ancient sedimentary environment? shallow lake river dry lake bed swamp

swamp

How are metamorphic rocks formed? Pressure and Temperature Biological Activity Expansion and Deposition Time and Exposure

pressure and temperature

Name the three agents of metamorphism.

heat, pressure, chemically-active fluids

A sedimentary rock is composed of rounded pieces of gravel that have been cemented together is known as ______________.

conglomerate

Exam 1 Flashcards

(59 cards)