
Ocean - abyss of time planet earth
... sulphide. When they vent on the seafloor, reactions between the hot, metalladen vent fluids and the surrounding cold deep-sea water lead to the precipitation of metal sulphides, a reaction that has generated some of the largest metal ore bodies on Earth. Hot, sulphide and metal-laden fluids do not s ...
... sulphide. When they vent on the seafloor, reactions between the hot, metalladen vent fluids and the surrounding cold deep-sea water lead to the precipitation of metal sulphides, a reaction that has generated some of the largest metal ore bodies on Earth. Hot, sulphide and metal-laden fluids do not s ...
Plate Boundaries The Earth`s surface is broken into rigid plates that
... 1. Diverging plate boundaries: Where plates move away from each other, or diverge, magma rises up into cracks in the rock. This magma solidifies into new rock, creating new ocean floor. The hot magma and young hot rock are less dense than the older rock of the ocean floor, and therefore they ride hi ...
... 1. Diverging plate boundaries: Where plates move away from each other, or diverge, magma rises up into cracks in the rock. This magma solidifies into new rock, creating new ocean floor. The hot magma and young hot rock are less dense than the older rock of the ocean floor, and therefore they ride hi ...
Name__________________________________________
... 19. Under EACH picture below, identify which type of convergent boundary the picture represents AND describe what is happening there ...
... 19. Under EACH picture below, identify which type of convergent boundary the picture represents AND describe what is happening there ...
Earth`s Spheres - Warren Hills Regional School District
... Human activity can affect every aspect of the water cycle. By clearing plants from Earth’s surface, we increase runoff and erosion, increase evaporation, and reduce transpiration. By spreading water on farm fields, we can deplete surface water and groundwater and increase evaporation (Figure 20). An ...
... Human activity can affect every aspect of the water cycle. By clearing plants from Earth’s surface, we increase runoff and erosion, increase evaporation, and reduce transpiration. By spreading water on farm fields, we can deplete surface water and groundwater and increase evaporation (Figure 20). An ...
Why do the terrestrial planets have different geological have
... A true face on mars Large impact like this sent pieces of Mars into space and eventually t ll some off them th landed on Earth ...
... A true face on mars Large impact like this sent pieces of Mars into space and eventually t ll some off them th landed on Earth ...
Plate Tectonics
... Currently, scientists believe that plates move because of convection currents that occur deep within the Earth. Like a pot of boiling water bubbling on a stove, magma warms, becomes less dense, and upwells, and is in turn replaced by cooler, more dense, sinking material. This movement, called a conv ...
... Currently, scientists believe that plates move because of convection currents that occur deep within the Earth. Like a pot of boiling water bubbling on a stove, magma warms, becomes less dense, and upwells, and is in turn replaced by cooler, more dense, sinking material. This movement, called a conv ...
Lesson 1: The Water Planet
... Most of the sea floor is covered by layers of sediment of varying thicknesses. These sediments can originate on the continent and be carried seaward by water or wind; or sediments can be formed from the remains of once-living terrestrial or marine organisms. Some sediment-sized particles even have e ...
... Most of the sea floor is covered by layers of sediment of varying thicknesses. These sediments can originate on the continent and be carried seaward by water or wind; or sediments can be formed from the remains of once-living terrestrial or marine organisms. Some sediment-sized particles even have e ...
Geography Revision - Geography at InterHigh
... Make sure cupboards have safety catches on them – even a small earthquake can make a big mess (or even a dangerous one, in the case of bleach or weed killer) if the bottles tumble out onto the floor and smash. Identify safe places indoors and out – places where glass will not fall on top of you for ...
... Make sure cupboards have safety catches on them – even a small earthquake can make a big mess (or even a dangerous one, in the case of bleach or weed killer) if the bottles tumble out onto the floor and smash. Identify safe places indoors and out – places where glass will not fall on top of you for ...
CHAPTER 18 Volcanism
... Isostasy is a condition of (6)_________________between the mass 2. What was the area of the Himalayas like 40 million years ago? of Earth’s crust and the buoyancy of the mantle. Topographic highs in 3. How did the movement of plates create the Himalayas? the crust have deep (7) _________________ tha ...
... Isostasy is a condition of (6)_________________between the mass 2. What was the area of the Himalayas like 40 million years ago? of Earth’s crust and the buoyancy of the mantle. Topographic highs in 3. How did the movement of plates create the Himalayas? the crust have deep (7) _________________ tha ...
A. Direction of Forces and the Movements B. Effects of Diastrophism
... Plate Tectonic Theory Known as the geological structural deformation. In 1960-1970, James Hall proposed that the lithosphere is divided into 19 semirigid plates. The boundaries of these plates are areas of tectonic activities where volcanic eruptions and earthquakes usually occur. ...
... Plate Tectonic Theory Known as the geological structural deformation. In 1960-1970, James Hall proposed that the lithosphere is divided into 19 semirigid plates. The boundaries of these plates are areas of tectonic activities where volcanic eruptions and earthquakes usually occur. ...
Alper Midterm 1 Solution (1)
... Granitic rocks are termed as mafic and they are rich in (magnesium and ferrum, for iron) in composition. (2pt) a) True b) False Which of the following is not fine grained? (2pt) a) Rhyolite b) Andesite c) Basalt d) Granite Most abundant rock type in oceanic crust is __Gabbro__. (2pt) If an igneous r ...
... Granitic rocks are termed as mafic and they are rich in (magnesium and ferrum, for iron) in composition. (2pt) a) True b) False Which of the following is not fine grained? (2pt) a) Rhyolite b) Andesite c) Basalt d) Granite Most abundant rock type in oceanic crust is __Gabbro__. (2pt) If an igneous r ...
The Changing Earth 1.3
... they found more records of these reversals. By dating the rock, scientists had further evidence of plate movement. The youngest rock records the most recent reversal, which happened only about 760,000 years ago. The oldest rock, farthest from the mid-ocean ridge, records reversals that happened more ...
... they found more records of these reversals. By dating the rock, scientists had further evidence of plate movement. The youngest rock records the most recent reversal, which happened only about 760,000 years ago. The oldest rock, farthest from the mid-ocean ridge, records reversals that happened more ...
TECTONIC PLATES
... The locations of volcanoes can also help identify the locations of plate boundaries. Some volcanoes form when plate motions generate magma that erupts on Earth’s surface. For example, the Pacific Ring of Fire is a zone of active volcanoes that encircles the Pacific Ocean. This zone is also one of Ea ...
... The locations of volcanoes can also help identify the locations of plate boundaries. Some volcanoes form when plate motions generate magma that erupts on Earth’s surface. For example, the Pacific Ring of Fire is a zone of active volcanoes that encircles the Pacific Ocean. This zone is also one of Ea ...
Theory of Plate Tectonics
... Fossils of the same organisms in Africa and South America were discovered This means that the continents were once joined The climates of the past were the same Plate tectonics - the lithosphere of the earth (upper mantle + crust) is fractured in 20 pieces (tectonic plates) that float on the astheno ...
... Fossils of the same organisms in Africa and South America were discovered This means that the continents were once joined The climates of the past were the same Plate tectonics - the lithosphere of the earth (upper mantle + crust) is fractured in 20 pieces (tectonic plates) that float on the astheno ...
Waves and Tides
... When the trough of a wave gets close to land, it starts to drag while the crest moves on, getting higher and higher until it tumbles over. ...
... When the trough of a wave gets close to land, it starts to drag while the crest moves on, getting higher and higher until it tumbles over. ...
Volcanoes
... from a single vent that have been blow in into the air, cooled and fallen around the vent. • Composite are steep sided volcanoes composed of many layers of volcanic rocks, usually made from high viscosity lava, ash, and rock debris • Shield volcanoes are shaped like a bowl or shield in the middle wi ...
... from a single vent that have been blow in into the air, cooled and fallen around the vent. • Composite are steep sided volcanoes composed of many layers of volcanic rocks, usually made from high viscosity lava, ash, and rock debris • Shield volcanoes are shaped like a bowl or shield in the middle wi ...
Plate Tectonics NASA Rocky Mountain Model
... crust, mantle, and core might work well at this stage, depending on what the students have learned so far. Although students would not be aware of it before watching the video or learning from another source, the tectonic plate that formed the Rocky Mountains did not sink until it had traveled 1,500 ...
... crust, mantle, and core might work well at this stage, depending on what the students have learned so far. Although students would not be aware of it before watching the video or learning from another source, the tectonic plate that formed the Rocky Mountains did not sink until it had traveled 1,500 ...
Evaluating Evidence of Plate Tectonics
... • Describe the relationship between the motion of continental plates and the patterns in the ages of crustal rocks, including: – Mid-ocean ridges, material from Earth’s interior must be emerging and forming new rocks with youngest ages – Continental centers will have oldest rocks because new crust i ...
... • Describe the relationship between the motion of continental plates and the patterns in the ages of crustal rocks, including: – Mid-ocean ridges, material from Earth’s interior must be emerging and forming new rocks with youngest ages – Continental centers will have oldest rocks because new crust i ...
Word format
... Which of the following is a portion of the world’s longest mountain range? A. Marianas trench B. Himalayas C. Caledonides D. Cascades E. mid-Atlantic ridge The tectonic plate that used to exist off the west coast of North America but which has long since been subducted, was the: A. Juan da Fuca plat ...
... Which of the following is a portion of the world’s longest mountain range? A. Marianas trench B. Himalayas C. Caledonides D. Cascades E. mid-Atlantic ridge The tectonic plate that used to exist off the west coast of North America but which has long since been subducted, was the: A. Juan da Fuca plat ...
P waves
... Seismic waves that travel along Earth’s surface are called surface waves. Each wave travels through Earth’s layers in a different way and at different speeds. The speed of the seismic wave depends on the kind of material it travels through. Waves that travel through solids, liquids, and gases are ca ...
... Seismic waves that travel along Earth’s surface are called surface waves. Each wave travels through Earth’s layers in a different way and at different speeds. The speed of the seismic wave depends on the kind of material it travels through. Waves that travel through solids, liquids, and gases are ca ...
Dynamic Crust Review
... (B) The density of oceanic crust is greater than the density of continental crust. (C) The rocks of the ocean floor and the continents have similar origins. (D) In the ocean floor, rocks near the mid-ocean ridge are cooler than rocks near the continents. 42. The study of how seismic waves change as ...
... (B) The density of oceanic crust is greater than the density of continental crust. (C) The rocks of the ocean floor and the continents have similar origins. (D) In the ocean floor, rocks near the mid-ocean ridge are cooler than rocks near the continents. 42. The study of how seismic waves change as ...
Earth Science Vocabulary Words
... Unit 2A: Heat and Temperature – Create a comic strip including all vocabulary words. The comic should tell a story and not just list definitions to the vocabulary. Color and neatness will count. Temperature Heat Fahrenheit Celsius Thermal Equilibrium ...
... Unit 2A: Heat and Temperature – Create a comic strip including all vocabulary words. The comic should tell a story and not just list definitions to the vocabulary. Color and neatness will count. Temperature Heat Fahrenheit Celsius Thermal Equilibrium ...
Plate Tectonics Activity - Blair Community Schools
... 1. _______________ was the name of the supercontinent that existed millions of years ago. 2. The surface, or ____________, of the Earth is broken into about ____ plates that float on the liquid _______________. 3. When the plates move, the ________________________ shift along with them. We don’t not ...
... 1. _______________ was the name of the supercontinent that existed millions of years ago. 2. The surface, or ____________, of the Earth is broken into about ____ plates that float on the liquid _______________. 3. When the plates move, the ________________________ shift along with them. We don’t not ...
Constructive & Destructive Forces on Landforms 5-3.1
... pieces by forces due to gravity, ice, plant roots, or other physical forces. ...
... pieces by forces due to gravity, ice, plant roots, or other physical forces. ...
Geophysics

Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.