< Rocks < Rocky objects < Earth
This is a map of the Pacific Ocean basin. Credit: National Geographic Society.

Earth as a rocky object is a lecture regarding specific astronomical and geological object Earth as a rocky object.

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Quiz

  

1 Yes or No, Extraterrestrial radiation sources only irradiate the surface of the Earth at night.

Yes
No

2 Complete the text:

Match up the form or type of volcano with the volcano:
Mount Somma - A
Mount Hikbok-Hikbok - B
Mount Redoubt - C
Mount Pinatubo - D
El Chichon - E
Mount Tambora - F
Ashfall from Pinatubo, 1991.jpg

.
Hibok1.jpg

.
Caldera Mt Tambora Sumbawa Indonesia.jpg

.
Somma-Vesuvius.jpg

.
Elchichon2.jpg

MountRedoubtEruption.jpg

.

3 Yes or No, Deposits of large landslides are mapped around the Hawaiian volcanoes by sidescan sonar.

Yes
No

4 Which geological phenomena are associated with Earth?

lava-spewing volcanoes
sulfur volcanoes
plate tectonics
water oceans
liquid methane oceans
silicate minerals

5 True or False, Most of the ocean floor is made of basalt.

TRUE
FALSE

6 Which chemical phenomenon are associated with the Earth?

quartz is the second most abundant mineral
an atmosphere containing CO2
green, red, blue, and yellow airglow
the production and escape of hot H+ ions
oxygen emissions
helium ions

7 True or False, The visible path of a meteoroid that has entered the Earth's atmosphere is called a meteorite.

TRUE
FALSE

8 Considering that many rock types bear a striking resemblance to meteorites which are the one or few ways to differentiate a meteorite from a terrestrial rock?

chondrules
the Ca/Si ratio
the Al/Si ratio
enstatite rather than diopside
oxygen isotope ratios
observed orbit and fall with verified recovery

9 Meteorites found on Earth may be from which of the following?

Saturn
Mercury
the Moon
the asteroid belt
Jupiter
Mars

10 Yes or No, Meteors become visible between about 75 to 120 kilometers (34 - 70 miles) above the Earth.

Yes
No

11 Complete the text:

A rocky object is any object, including astronomical

, composed of one or more types of

.

12 Yes or No, A skydiver may have captured the first film ever of a meteorite plunging down at terminal velocity.

Yes
No

13 A terrestrial planet is composed primarily of?

14 Yes or No, Shield volcanoes, such as those that make up the Islands of Hawai`i, are composed almost entirely of basalt.

Yes
No

15 On 19 May 1910, the Earth actually passed through the tail of what comet.

16 True or False, An oxygen isotope discrepancy was noted forty years ago in a stony meteorite that exploded over Pueblito de Allende, Mexico.

TRUE
FALSE

17 Which of the following are associated with greenstone belts?

metamorphosed mafic sequences
ultramafic volcanic sequences
Archaean and Proterozoic cratons
chlorite
Humphreys series
Rydberg series
green hue of metamorphic minerals

18 Yes or No, Tanzanite is found only in the foothills of Mount Kilimanjaro.

Yes
No

19 Any remnants of the natural phenomena and processes associated with the action of volcanoes, geysers and fumaroles, especially any remnants of past volcanic activity, are called?

20 Yes or No, Hauyne, haüyne or hauynite occurs in Vesuvian lavas in Monte Somma, Italy.

Yes
No

21 Yes or No, In contrast to the Proterozoic, Archean rocks are often heavily metamorphized deep-water sediments, such as graywackes, mudstones, volcanic sediments and banded iron formations.

Yes
No

22 Yes or No, Orpiment is an orange to yellow mineral that is found worldwide on Earth, and occurs as a sublimation product in volcanic fumaroles, low temperature hydrothermal veins, hot springs and as a byproduct of the decay of another arsenic mineral, realgar.

Yes
No

23 Yes or No, The word "volcano" is used to refer to the opening from which molten rock and gas issue from Earth's interior onto the surface, and also to the cone, hill, or mountain built up around the opening by the eruptive products.

Yes
No

24 True or False, Volcanoes occur on every continent on Earth, under its oceans, and on many other astronomical rocky objects.

TRUE
FALSE

25 Green earth is a natural pigment composed of what likely source of green?

26 Yes or No, Hominins have been aware of volcanic activity in this planet since ancient times.

Yes
No

27 Which of the following are rocky objects?

micrometeorites
andesite
fluorite
Leonid Meteor Shower
NWA 6963
lavabomb
cristobalite
Phobos and Deimos

28 Yes or No, The Hopi Buttes volcanic field consists of ~300 late Miocene volcanic centers within ~ 1800 km2 of the field, located in northeastern Arizona.

Yes
No

Hypotheses

  1. Rocky objects should have rocks all the way through.

See also

{{Radiation astronomy resources}}

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