GLG 201 TEST 1

Geology 201 with Long, David T. at Michigan State University

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By: hannah Seiler
Created: 2010-09-27
Size: 25 flashcards
Views: 38

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How old is Earth and how were we able to figure this out?

4.6 Billion years old

What planet is it from the sun?

3rd

What is relative dating?

placing events in their proper sequential order without knowing their age in years

What is the law of superposition?

Law states that the youngest layers are on top and the oldest layer is on the bottom

What is the hydrosphere?

Dynamic mass of water that is continually on the move undergoing the water cycle of evaporation to precipitation to the ocean.

what is the atmosphere?

Live - giving gaseous envelope that surrounds Earth. Half of the atmosphere lies below an altitude of 3.5 miles and 90% occurs within 10 miles of Earth's surface. The atmosphere protects us from sun's intense energy and dangerous UV radiation

What is the geosphere?

Lies beneath the atmosphere and the oceans; considered solid earth. It extends from the surface to the center of the planet and is the largest of the earth's 4 sphere

What is the biosphere?

Includes ALL life on Earth and heavily influences the other 3 spheres

Origins of Earth

14 billion years ago we have the big bang theory , which was a big explosion that sent all matter of the universe flying outward and at very high speeds. Earth formed from debris cooling and condensing, in the milky way galaxy.

What is the process of Crystallization?

Magma or molten rock froms deep beneath Earth's surface and over time it cools and solidifies.

What are igneous rocks?

Magma that cools either inside (intrusive) or outside (extrusive) and then solidifies
ex) felsic, olivine, mica, quartz, muscovite, feldspar

What is weathering?

The physical breakdown and chemical alteration of rock at or near earths surface

What are sedimentary rocks?

Come from weathering where sediments come together from rivers, rain, etc. This is where you will find fossils.
ex) shale, sandstone, Conglomerate

What is a metamorphic rock?

It is formed when a sedimentary rock is intruded by a mass of magma and is exposed to great pressure and heat.
Examples would be: shale to slate or limestone to marble

What is a mineral

-naturally occurring, inorganic solid, definite crystalline structure, and a unique composition

what is an atom?

Makes up a mineral; the smallest particle that cannot be split. Atoms contain protons neutron inside the nucleus that is surrounded by electrons

What is the atomic number and what does it determine?

Determine the chemical nature of the atoms and is also the number of protons

Covalent Bond:

When electrons are shared between atoms

Ionic Bond:

When electrons are transferred between electrons

Ions:

Ions are atoms with a positive or negative charge

Cation:

Positive charge

Anion:

Negative charge

Metallic bonding

swarm of electrons around only other metals

What is the most abundant element of earth?

Iron

What is the most abundant element in crust of earth(walk on)?

oxygen

About this deck

By: hannah Seiler
Created: 2010-09-27
Size: 25 flashcards
Views: 38

About StudyBlue

“I have used this website for three exams, and I see a huge difference in my test results.”
Naj