Contiential
Drift
Drift
What was the hypothesis on Continental Drift about?
I.e that all continents were once part of a single landmass that gradually moved apart.
What is Seafloor Spreading?
The formation of new areas of oceanic crust, which occurs through upwelling of magma at mid ocean ridges and its subsequent outward movement on either side.
What is a Tectonic Plate?
It is an irregular shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
What is a Divergent Plate Boundary?
A divergent plate boundary is two plates that move apart from one another.
What is the Ring of Fire?
a path along the Pacific Ocean that is labeled by active volcanos and frequent earthquakes.
Who was the one that created the hypothesis on Continental Drift?
The answer is Alfred Wegener.
Who was the person that lead to creating the theory on Seafloor Spreading?
Geologist Harry Hess in the 1960s.
Who created the theory of Plate Tectonics?
Alfred Wegener “The Father of Plate Tectonics”
What is a Convergent Boundary?
What % of Earthquakes does the Ring of Fire account for?
It’s estimated to be accounted for 90% of the Earthquakes that happen.
What was one of multiple factors that supported the hypothesis of Continental Drift?
• Coastlines fit together like puzzle pieces
• Fossils of the same plants and animals are found in Adjacent parts of Pangaea.
• Matching age of types or rocks in widely separated coastal regions.
• Evidence of Changes in climate patterns.• Mountain Chains ending in the coastline of one continent seem to continue to other continents.
What supported Hess’s theory on Seafloor Spreading?
• The age of the Seafloor is progressively older away from the mid ocean ridges.
• The elevation of the sea floor is progressively lower away from mid ocean ridges.
• The magnetic history of the Seafloor bears the striped pattern of the earth’s magnetic reversals.
• Older parts of the Seafloor have the greatest potential to have accumulated sediments over the longest time.
What were the evidences of Plate Tectonics?
•Magma Generation
•Igneous Intrusions
•Metamorphism
•Volcanic Action
•Earthquakes
•Faulting
•Folding
What are 3 pieces of Evidence that support Lithosphere Plate Boundaries?
The 3 major pieces of evidence that indicate the support that proves right to Lithosphere Plate Boundaries are:
•Earthquakes.
•Mountain Building.
•Volcanic Activity.What led to the creation of the Ring of Fire?
It was formed by the subduction of tectonic plates at convergent boundaries.
Why was the theory on Continental Drift rejected by most people?
Primarily because the actual forces generated by the rotation of the earth were calculated to be insufficient to move any continents.
Yes, it was accepted because it filled in the holes that Wegener’s theory of Continental Drift had and closed them with his theory on Continental Drift.
Why were Plate Tectonics such a widely accepted concept?
Plate Tectonics came to be accepted by geoscientists after Seafloor spreading was validated in the mid-to-late 1960s.
What was the Lithosphere Plates main biological impact?
They basically were made to be the main factor triggering the process of mass extinction of species.
Since 1800, how much times has the ring of fire had any major volcanic events?
It had six major volcanic events including:
• Mount Tambora (1815)
• Krakatoa (1883)• Novarupta (1912)
• Mount Saint Helens (1980)
• Mount Ruiz (1985)
• Mount Pinatubo (1991)What would be the result of Earth, if Continental Drift wasn’t a thing?
The Earth’s continents would essentially stop moving and the movement plays a massive factor because without it landmasses and the formation of mountain ranges would be altered.
What is another name for Seafloor Spreading Theory?
The answer is “mid ocean ridge system” This because Seafloor spreading theory explains how new oceanic crust is formed at the mid-ocean ridges.
Name me 3 of the major lithosphere plates?
North American, Pacific Plate, Antarctic, African Plate, Eurasian Plate, Australian Plate, South American Plate.
The five driving forces of lithosphere plates?
• Ridge Push
• Slab Pull
• Collisional Force
• Trench Suction
• Traction
Give 3 ways on how does the Ring of Fire hold significance to Human Beings?
• Structural Action: The Ring of Fire is seen as a significant region to the bowl of the pacific sea where a few plates merge.
• Human Settlements: It is home to various nations and urban areas, including Japan, Indonesia, Chile and the western shores of North and South America which are seen as the human settlements that adjusted to the land difficulties in the zone.
• Normal Assets: The Ring of Fire is wealthy and leads to development of rich soils which in turn support horticulture and make the locale reasonable for devlopment. It provides gold, silver, copper and geothermal energy assets.
• Land Perils: The Ring of Fire encounters multiple earthquakes and volcanoes and learning how to deal with these disasters could be pitoval for human development.
• Tidal Waves: The structural action along the Ring of Fire can set off torrents which could in turn obliterate any nearby terrain in the area which is why waterfront people could hold up early administration frameworks.
• Plate Tectonics Exploration: The presence of the Ring of Fire furnishes specialists and researchers with great chances to co-operate on plate tectonics, volcanic cycles and tremor elements. It adds on how we may interpret Earth’s geographical history.