Tragic Tectonics Thickers questions Flashcards
To answer
What are crafts, that can fly over Kármán line , known as?
Spacecrafts
What are crafts, that can only fly under Kármán line , known as?
Aircrafts
What are the percentages of the gases in the Earth atomsphere
- Nitrogen: 78%
- Oxygen: 21%
- Argon: 0.9%
- Carbon dioxide: 0.04%
- Other gases: 0.1%. These include trace amounts of methane, water vapor, and neon.
- Water vapor: variable. On average, it is around 1% at sea level and 0.4% over the entire atmosphere.
Average temp
Earth’s atomsphere
14℃
Layers of
Earth’s atomsphere
- Troposphere:Where the majority of breathing air is.
- Stratosphere:Mountain peaks and planes fly here
- Mesosphere:Coldest layer
- Thermosphere:Warmest due to ozone layer absorbing radiation.Kárman Line resides here
- Exosphere:Highest layers, in which the air molecules rarely collide with eachother
Thickness of layers in
Earth’s atomsphere
- Troposphere:0-12Km
- Stratosphere:12-50Km
- Mesosphere:50-80Km
- Thermosphere: 80-700Km
- Exosphere:700-10,000Km
Average temp
Earth’s Crust
Same as atomsphere(14℃)
Composition
Continental Crust
Less denser, felsic rocks, such as granite and dalicite
Average thickness
Continental Crust
15km
Composition
Oceanic crust
More dense, balstic rocks, such as balsalt and manganase
Average thickness
Oceanic crust
50km
How many tectonic plates are there?
9
Names
Tectonic plates(9)
- African Plate: Underlies Africa and covers approximately 61,300,000 km².
- Antarctic Plate: Contains Antarctica and the surrounding ocean floor, with an area of about 60,900,000 km².
- Eurasian Plate: Encompasses most of the continent of Eurasia, spanning around 67,800,000 km².
- Indo-Australian Plate: Formed by the fusion of the Indian and Australian plates (sometimes considered as two separate plates), covering approximately 58,900,000 km².
- Australian Plate: Separated from the Indo-Australian Plate about 3 million years ago, with an area of 47,000,000 km².
- Indian Plate: A minor plate that separated from Gondwana, covering 11,900,000 km².
- North American Plate: Large tectonic plate including most of North America, Greenland, and part of Siberia, with an area of 75,900,000 km².
- Pacific Plate: An oceanic tectonic plate beneath the Pacific Ocean, spanning approximately 103,300,000 km².
- South American Plate: Major tectonic plate including most of South America and a large part of the south Atlantic, with an area of 43,600,000 km².
What do divergent boundaries do?
Allow for new crust to be created via rift vallies/ravines
What do convergent boundaries do
Allow for existing crust to be destoryed via:
* Fold mountains with two continentals
* Trenches with two oceanics
* Volcanoes with one continental and oceanic