• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
ES Chapter 14 Study Guide
ES Chapter 14 Study Guide

... Approximately how much of Earth’s surface is covered by land? Approximately how much of Earth’s surface is covered by water? Approximately when did the ocean become an important area of study? Which ocean has the greatest average depth? The largest of Earth’s oceans is __________________ Where trenc ...
Mesozoic Plate Tectonics
Mesozoic Plate Tectonics

... At the end of the Paleozoic, there was one continent and one ocean. Then Pangaea began to break apart about 180 million years ago. The Panthalassa Ocean separated into the individual but interconnected oceans that we see today on Earth. Continental rifting and then seafloor spreading pushed Africa a ...
Plate Tectonics
Plate Tectonics

... It wasn’t until the 1960s that the theory of plate tectonics was advanced to explain how the continents could separate.. ...
SPQ Module 4 – Very Cold Dinosaurs
SPQ Module 4 – Very Cold Dinosaurs

... Other fossil evidence has also been gathered to support the theory that the present day continents are gradually moving. This fossil record has revealed plants and animals distributed across disparate land masses that were once joined together. These records support that Antarctica was once squeezed ...
TERM 1 Final Exam – Study Guide
TERM 1 Final Exam – Study Guide

... Which are elements of culture: language, education, religion, outward expression, patterns of behavior. Cultures are changing constantly through diffusion, innovation, and acculturation Economy is the way people exchange goods and services. A command economy dictates every aspect of production and p ...
HISTORY OF THE OCEANS
HISTORY OF THE OCEANS

... • A trench is formed when two plates collide and one plate dips below the other and slides back down the mantle. • Downward movement is called subduction. Subduction produces earthquakes and volcanoes, also underwater. ...
Science 8
Science 8

... ____3. This is the name for the place where one plate is forced under another. ...
Science 8
Science 8

... ____3. This is the name for the place where one plate is forced under another. ...
PLATE TECTONICS
PLATE TECTONICS

... • There are periods of time when the Earth’s magnetic field points South (reversed polarity). • There is a pattern of alternating normal and reverse polarity ...
Chap7Sect2 -Cont Drift and Sea-floor
Chap7Sect2 -Cont Drift and Sea-floor

... 1900’s hypothesized that the continents had once been a huge landmass which he called Pangaea (“all lands”). ...
Chapter Two Geography of the Ocean Basins Figure 02_02
Chapter Two Geography of the Ocean Basins Figure 02_02

... alternating magnetization parallel to the midmidoceanic ridges. This is evidence for continuous formation of new rock at these ridges. As new rock forms, older rock is pushed farther away from the ridge, producing these patterns in the rock. ...
File - Bruner science
File - Bruner science

... on the different continents in the southern hemisphere.  _______________ fossils, a fern, are found from South America and Africa to Australia, India and Antarctica.  Ferns do not grow in cold climates, and no evidence that Antarctica was milder 200 million years ago.  So, Antarctica must have be ...
National Geographic – Colliding Continents Video
National Geographic – Colliding Continents Video

... 4. The lighter elements, including ______________ and _______________ rise towards the surface and erupt in volcanoes as molten rock. 5. Most scientists believe that the water that formed our oceans came from many, many ________________, which contained water. 6. How old was Earth believed to be whe ...
PESPTprogramIntroContDrift12-13
PESPTprogramIntroContDrift12-13

... continents? 2. The temperature of earth’s interior ________________(increases/decreases) toward earth’s center where it may exceed _______________. 3. As you go deeper temperature ______________ (increases/decreases) and pressure ____________. Together with composition, this determines which layers ...
plate tectonics - mfischerscience
plate tectonics - mfischerscience

... • Alfred Wegener came up with the first real theory of continental drift in 1912. He proposed: • The idea of Pangaea, a single landmass. • That the continents began to split apart 200 million years ago (MYA). • That continents slowly moved to their present positions. ...
Palaeontology, Pangaea, Plate Tectoncs
Palaeontology, Pangaea, Plate Tectoncs

... magnetic striping between 84 and 125 Ma are attributed to a Cretaceous “Quiet Period” of stable magnetic polarity. The oldest known “oceanic” crust is 170 Ma. The world magnetic compilation map (Korhonen et al., 2007) shows a strong contrast in signature between nuclear/crystalline cratonic areas, ...
Continental Drift
Continental Drift

... Peninsula, and other parts of southern Asia) were once joined as one “supercontinent” that he dubbed “Gondwanaland” (from a region of India). The Upper Carboniferous coal measures and Permian redbeds (but not the older rocks) are also found in Europe and North America, suggesting an even bigger supe ...
Continental Drift and Plate Tectonics
Continental Drift and Plate Tectonics

... that all continents had once been joined together in a single landmass and have drifted apart since.  Wegener named this supercontinent Pangaea.  Wegener’s theory was rejected by scientists because he could not explain what force pushes or pulls continents. Continental drift video clip ...
CD vs. PT
CD vs. PT

... that all continents had once been joined together in a single landmass and have drifted apart since.  Wegener named this supercontinent Pangaea.  Wegener’s theory was rejected by scientists because he could not explain what force pushes or pulls continents. Continental drift video clip ...
Assignment 6
Assignment 6

... North America? How much of Washington was above sea level? What two rocks are evidence for this? ...
Name Period ______ Date ______ Earth Science: National
Name Period ______ Date ______ Earth Science: National

... 16. The world’s last supercontinent is known as _____________________. 17. How many years ago did the supercontinent Pangaea begin breaking up? (1 point) 18. During the break-up of Pangaea, S. America split off from ______________, N. America split off from ________________, and Australia split off ...
GRAĐA ZEMLJE
GRAĐA ZEMLJE

... Rodinia (along with it's more famous brother, Pangea) is one of the two true "super" continents. Gaining this title simply because it was massive, and contained many of the land masses we know today - but all mashed together into one. Unlike Pangea, not as much is known about Rodinia... its look and ...
Continental Drift Notes
Continental Drift Notes

... In 1912, a German scientist (he was an explorer, astronomer, and meteorologist proposed that at one time all of the continents had been ______________ to form one huge continent  His name was ________________  He called this supercontinent _______________ (it means “all Earth”)  And, over time (m ...
Continental Drift
Continental Drift

... • The north magnetic pole had clearly wandered over time. • More surprisingly, the path it seemed to have followed was different in Europe than in North America. • The two paths could be turned into one consistent path, but only by slowly closing the Atlantic Ocean as older and older rocks were comp ...
Continental Drift Theory and Plate Tectonics
Continental Drift Theory and Plate Tectonics

... Theory • The Shapes Match • The continents look as if they were pieces of a giant jigsaw puzzle • The Plants and Animals Match • Identical fossil species along the coastal parts of Africa and South America. • Rocks Match - These broad belts match when the end of the continents are joined. ...
< 1 ... 104 105 106 107 108 109 110 111 112 ... 115 >

Geological history of Earth



The geological history of Earth follows the major events in Earth's past based on the geologic time scale, a system of chronological measurement based on the study of the planet's rock layers (stratigraphy). Earth formed about 4.54 billion years ago by accretion from the solar nebula, a disk-shaped mass of dust and gas left over from the formation of the Sun, which also created the rest of the Solar System.Earth was initially molten due to extreme volcanism and frequent collisions with other bodies. Eventually, the outer layer of the planet cooled to form a solid crust when water began accumulating in the atmosphere. The Moon formed soon afterwards, possibly as the result of a Mars-sized object with about 10% of the Earth's mass impacting the planet in a glancing blow. Some of this object's mass merged with the Earth, significantly altering its internal composition, and a portion was ejected into space. Some of the material survived to form an orbiting moon. Outgassing and volcanic activity produced the primordial atmosphere. Condensing water vapor, augmented by ice delivered from comets, produced the oceans.As the surface continually reshaped itself over hundreds of millions of years, continents formed and broke apart. They migrated across the surface, occasionally combining to form a supercontinent. Roughly 750 million years ago, the earliest-known supercontinent Rodinia, began to break apart. The continents later recombined to form Pannotia, 600 to 540 million years ago, then finally Pangaea, which broke apart 180 million years ago.The present pattern of ice ages began about 40 million years ago, then intensified at the end of the Pliocene. The polar regions have since undergone repeated cycles of glaciation and thaw, repeating every 40,000–100,000 years. The last glacial period of the current ice age ended about 10,000 years ago.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report