Lecture 1 - Where did the dinosaurs live? Flashcards
Where do we find dinosaurs?
On every continent, including
Antartica
Are all prehistoric creatures dinos?
No
Did dinos fly?
Avian dinos “birds” but others no dinos are primarily terrestrial
Are all feathers intended for flight?
No, they can also be designed for thermoregulation and other purposes
What is a transitional form?
It has features of both dinos and birds
Take away messages
The science of palaeontology is complex and always changing
When you are given a picture containing plate tectonics what do we look for
Look at the land mass(plate tectonics) and how they are moving in relation to one another. Also look at the bodies of water
What are the 4 layers of the earth?
Crust, Mantle, Outer core, Inner core
What is the dominant material of the core
The core is metallic
What is the dominant material of the crust and mantle?
Silicate materials
An increase in depth does what?
Increase the pressure and temperature
What does an increase in depth, pressure, and temp lead to?
Differences in phase and mechanical behaviour of the layers of the earth
What are the two types of crust?
Continental
Oceanic
Continental crust
Thick 20-80km
Rich in Si and Al
Low density
Granite
Oceanic
Thin 5-10lm
Rich in Fe and Mg
Higher density
Basalt
