1) Describe the formation process of igneous rocks.
2) What is a metamorphic series?
3) What is regional metamorphism?
4) What is the difference between low-grade and high-grade metamorphic rocks?
Answers
Answer:
1. Igneous rocks form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.
2. Metamorphic series include the Barrovian and Buchan series of metamorphic rocks. George Barrow was a geologist in Scotland who discovered the Barrovian series.[1] These are also called metamorphic facies series. A metamorphic facies series is a sequence of metamorphic facies which plot in a temperature-pressure diagram along a line, and this line represents a certain geothermal gradient. They are not the same as metamorphic zones, as these are defined as a region on a geological map where the pressure-temperature conditions for an index mineral (a mineral that indicates the approximate metamorphic grade of a rock), were appropriate for these minerals to form.
3. Regional metamorphism is metamorphism that occurs over broad areas of the crust. Most regionally metamorphosed rocks occur in areas that have undergone deformation during an orogenic event resulting in mountain belts that have since been eroded to expose the metamorphic rocks.
4. Low-grade metamorphic rocks tend to be fine-grained (the newly formed metamorphic mineral grains that is). High-grade metamorphic rocks tend to be coarse-grained
Related Questions
describe the likely weather changes that occur with the advance and passage of a warm front
Answers
When a warm front advances and passes through an area, it typically brings about specific weather changes.
A warm front brings specific weather changes as it moves through an area. Beginning with high cirrus clouds and moving down to lower stratocumulus and altocumulus clouds, cloud cover increases. It begins to rain or drizzle lightly before becoming steadier and more widespread. As warmer air replaces the cooler air mass, temperatures rise. East or northeastern winds change to southwesterly or southern winds.
As the warm front retreats the amount of clouds decreases, though some lingering clouds might still be present. As moisture is carried by the warm air, humidity levels rise as well. The characteristics of the warm front and the atmospheric conditions affect both the strength and length of these changes.
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if this amount of slip is the average value for this section of the san andreas, how many earthquakes were likely needed to accumulate the present offset of wallace creek? g
Answers
To determine the number of earthquakes likely needed to accumulate the present offset of Wallace Creek, we would need specific information about the slip rate and the average slip per earthquake in that section of the San Andreas Fault.
How to get the slip amountThe number of earthquakes required to accumulate a given offset depends on various factors, including the slip rate (the average rate at which the plates are slipping past each other), the average slip per earthquake, and the time period over which the slip has occurred. T
These factors can vary significantly along different sections of the fault.
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__________ are the most-utilized method of transporting goods within the United States. A. Airplanes B. Trains C. Freeways D. Ships Please select the best answer from the choices provided. A B C D.
Answers
Answer:
C.Free ways
Explanation:
may be the answer is "c"!
was it correct?
which of the following is not correct regarding the pleistocene? question 74 options: the ohio and missouri river systems marked the southern terminus of continuous ice at its greatest extent. sea levels were 100 m (330 ft.) higher than today. at its height, almost a third of earth was covered with ice.
Answers
Option A is correct. Ice age is another name for the Pleistocene epoch. There are numerous accounts of events that followed that contributed to global warming.
One of these is true: the globe began warming 18,000 years ago when it began to emerge from the Pleistocene Ice Age. Despite the fact that sea levels have risen by roughly 300 feet, forests have also returned. Some animal species, like mammoths and mastodons, went extinct. These were the Pleistocene epochs: A geological age known as the Gelasian is thought to have started around 2,588 million years ago and ended about 1,806 years ago.
Which of the following is not correct regarding the Pleistocene?
A) Sea levels were 100 m (330 ft.) higher than today.
B) At its height almost a third of Earth was covered with ice.
C) It began 1.65 mya and had at least 18 glacial/interglacial cycles.
D) The Ohio and Missouri River systems marked the southern terminus of continuous ice at its greatest extent.
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Are the Thai ethnic group in Vietnam the same as the Thai from Thailand?
Answers
Không. Dân tộc Thái ở Việt Nam được phân bố ở vùng Tây Bắc của Việt Nam và có nhiều nhóm khác nhau. Ngôn ngữ chủ yêu là tiếng Việt, họ đã có mặt ở Việt Nam trên 1200 năm, là những người từ vùng đất thuộc tỉnh Vân Nam, Trung Quốc bây giờ, họ chiếm 1,74% dân số nước Việt Nam
Dân tộc Thái ở Thái Lan Người Thái, hay trước kia tên do bên ngoài gọi là người Xiêm, một dân tộc phân nhóm của nhóm sắc tộc Thái, là dân tộc chiếm đa số sống tại lãnh thổ Thái Lan và một số thiểu số ở Lào , Việt Nam , Myanmar , Ấn Độ ,khu vực miền nam Trung Quốc... Ngôn ngữ chủ yếu là tiếng Xiêm hay tiếng Thái Trung. Phần lớn theo Phật giáo Thượng toạ bộ, được chia làm 4 nhóm, chiếm khoảng 75 -85% dân số toàn Thái Lna
What is the distance between (-5,0) and (0, 3)? Round your answer to 2
decimal places, if needed.
Answers
Answer:
d = 5.83
Explanation:
explain why antarctic circle have 24 hours of darkness at june 21st...
Answers
Answer:
This is because the earth is tilted at a 23.5 degree angle, and during the winter solstice, the southern hemisphere is tilted away from the Sun, meaning that the antarctic circle is completely tilted away from the Sun, hence it experiences 24 hour nighttime
Explanation:
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Net burial of pyrite (FeS2) has what effect(s) on the composition of the atmosphere? Check all that apply.
a. increased O2
b. decrease O2
c. increase CO2
d. decrease CO2
Answers
When it comes to the net burial of pyrite (FeS2), effects it has on the composition of the atmosphere is decrease O2 and decrease CO2. Therefore, the correct option is B and D.
Pyrite (FeS2), sometimes known as iron sulfide, is a naturally occurring iron sulfide mineral. It is found in many rock types, including sedimentary, metamorphic, and igneous rocks. It is an important ore mineral for iron and sulfur as well as a common accessory mineral in many mineral deposits. Pyrite is used in the manufacture of sulfuric acid and various other chemicals. It's also used as a gemstone in the form of marcasite jewelry.
Net burial of pyrite has a negative effect on the atmosphere. Burial of pyrite sequesters oxygen and carbon dioxide in the sedimentary rock, reducing the availability of these elements in the atmosphere. As a result, burial of pyrite reduces the atmospheric levels of oxygen and carbon dioxide. As a result, options b. decrease O2 and d. decrease CO2 are the correct options.
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earthquakes in subduction zones generally only occur at depths of: multiple choice up to 700 km. 700-1000 km. greater than 700 km.
Answers
Earthquakes in subduction zones generally only occur at depths greater than 700 km.
What are earthquakes?
An earthquake is defined as a sudden and violent shaking of the Earth's surface, usually resulting from the abrupt movement of tectonic plates or volcanic activity.
Tectonic plates are rigid layers of rock that make up the Earth's crust and are responsible for the planet's movement. When two tectonic plates collide, one can slide beneath the other, producing a phenomenon known as a subduction zone.
An earthquake is a natural phenomenon that occurs when the Earth's tectonic plates shift suddenly,
resulting in the release of energy that causes the ground to shake. Earthquakes can range in size from small tremors to large quakes with devastating consequences, such as building collapse, landslides, and tsunamis.
The strength of an earthquake is measured using the Richter scale, which ranges from 1 to 10.
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Explain the GAC in hot, dry weather in the desert. (2 marks)
Answers
In a hot and dry weather such as in desert, the global atmospheric circulation often comes with a low pressure near 30° and this is the main cause of precipitation in mid-latitude.
What is a global atmospheric circulation?In geography, also known as an atmospheric circulation, refers to the large-scale movement of air and together with ocean circulation is the means by which thermal energy is redistributed on the surface of the Earth. The global atmospheric circulation varies from year to year but the large scale structure of this circulation remains fairly constant.
In conclusion, the global atmospheric circulation creates different direction of winds across the planet and leads to areas of high rainfall, like the tropical rainforests and areas of dry air, like deserts.
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3. Discuss how map projections affect economic, social or political perceptions of geographic regions.
Answers
How do you think high tariffs on goods brought into the United States helped
American industry?
please help!
Answers
Answer: Tariffs have historically served a key role in the trade policy of the United States. Their purpose was to generate revenue for the federal government and to allow for import substitution industrialization (industrialization of a nation by replacing foreign imports with domestic production) by acting as a protective barrier around infant industries.
Explanation:
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approximately ________blank percent of insolation arriving at the top of the atmosphere is eventually absorbed by the ground.
Answers
Approximately 45% of insolation arriving at the top of the atmosphere is eventually absorbed by the ground.
Convert 6 feet to miles
Answers
Answer:
0.00114 miles
Explanation:
divide length value by 5280
how can a rock or sediment have high porosity but low permeability? a. a. if the pore spaces consist only of straight channel b. if the pore spaces are filled with sediment c. if the pore spaces are very large d. if the pore spaces are not well connected to each other
Answers
Answer:
A rock or sediment can have high porosity but low permeability if the pore spaces are not well connected to each other. Porosity refers to the percentage of void space within the rock or sediment, while permeability refers to how easily fluids can flow through it. If the pore spaces are large but not connected to each other, fluids will not be able to flow through the rock or sediment efficiently, resulting in low permeability despite high porosity.
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Imagine you were hiking in the woods and had to find your way to a campsite miles away, and all you had with you was a topographic map of the area. How would knowing how to read a topographic map help you in this situation? What kind of features would you look for to help you get to the campsite the easiest? What features would you avoid?
Answers
A topographic map's contour lines indicate how high or low each given location is. Additionally, they display the land's slope in a variety of colors. This means that these lines aid in identifying whether the terrain slopes upwardly or downwardly, towards a higher or lower point.
What is topographical map?A topographic map, also known as a topographic sheet, is a type of map used in modern mapping that is distinguished by its large-scale detail and quantitative depiction of relief features, typically using contour lines (connecting points of equal elevation), though historically using a variety of methods.
Traditional standards demand that a topographic map display both man-made and natural elements. A topographic survey is often composed of two or more map sheets that are combined to create the entire map. It is usually based on a systematic observation and published as a map series.
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Which type of tree harvesting limits the ability for forest renewal?
Clear cutting
Strip cutting
Selective cutting
Shelter wood cutting
Answers
Which type of tree harvesting limits the ability for forest renewal?
CLEAR CUTTING
Strip cutting
Selective cutting
Shelter wood cutting
The correct option is C. Selective cutting is a type of tree harvesting that limits the ability for forest renewal.
Selective logging, which involves taking out one or two trees while leaving the others alone, is frequently viewed as a more environmentally friendly alternative to clear-cutting, which involves removing a large portion of a forest and leaving nothing but wood debris and a depleted landscape in its place.
How is selective cutting good?Increases the amount of light that reaches the growth's top story. The remaining tree growth will significantly accelerate. enables trees that can't tolerate shade to get more light. promotes the spontaneous seeding of vacant spaces by remnant trees.
Loggers only select wood that is highly valued, like mahogany, in selective logging. There is no selection in clear-cutting. Because some trees and plants do survive the logging process and can eventually help the forest rebound, selective logging is more environmentally friendly than clear-cutting.
Thus, C is the right answer. The capacity for forest renewal is constrained by the method of tree harvesting known as selective cutting.
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We conducted a round-the-world investigation of sand-and-surf hotspots for coastal adventures. If a wild beach bash shared with thousands of college students sounds appealing to you, we suggest a summer visit to ________ along the gulf of mexico.
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If a wild beach bash with thousands of college students sounds appealing, we suggest a summer visit to Panama City Beach along the Gulf of Mexico. This destination is well-known for its lively atmosphere and exciting coastal adventures.
Panama City Beach, situated along the Gulf of Mexico, offers a perfect mix of sand, surf, and excitement for those seeking a thrilling coastal adventure. With miles of beautiful white sandy beaches and crystal-clear waters, it is an ideal location for sunbathing, swimming, and water sports.
During the summer months, Panama City Beach becomes a popular hotspot for college students, attracting large crowds for wild beach parties and various entertainment events. Visitors can also explore nearby attractions, such as Pier Park and St. Andrews State Park, for even more fun-filled activities. So, if you're up for an unforgettable summer experience, Panama City Beach is the place to be.
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most icelandic eruptions occur when lava pours out of long fractures, in eruptions known as
Answers
Most Icelandic eruptions occur when lava pours out of long fractures, in eruptions known as fissure.
A fissure is a hole in the Earth's surface that is long and narrow. The word "cleft" or "crack" is derived from the Latin word fissura. In the crust of the Earth, on ice sheets and glaciers, and on volcanoes, fissures appear.
An aperture or long, thin fracture in the Earth's crust is referred to as a ground fissure or an earth fissure. Ground fissures can develop due to geological faulting, earthquakes, or human activity like oil mining and groundwater pumping.
They can also develop spontaneously. Ground fissures can grow and erode by torrential rain after they have already formed. They can cause harm to property and infrastructure, including roads, underground pipes, canals, and dams, as well as pose a risk to humans and cattle who reside on the impacted surfaces.
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How did isolation affect culture in Oceania?
A. Languages in Tasmania are unrelated to those off the island.
B. Midway Island is a protected research station.
C. The Philippines are predominantly Catholic.
D. Christianity is practiced throughout New Zealand.
Answers
Answer:
Languages in Tasmania are unrelated to those off the island.
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agriculture practiced in california differs from forms practiced in other mediterranean agricultural regions because in california
Answers
Answer: B
Farms use more irrigation
Explanation:
As the Mediterranean region's lands are known for their oceanic type of climate, California's agriculture is different from that of the Mediterranean region.
What is meant by mediterranean agriculture regions ?Mediterranean agriculture is the type of farming carried out in areas with a climate similar to that of the Mediterranean Sea, such as central and southern California, central Chile, the south-west of the Cape Province, the south-west of Western Australia, and the southern section of South Australia.
These places experience hot, dry summers and warm, rainy winters. In terms of the amount of area occupied, the number of people employed, or the cost of its products, it is not very significant. There are many different types of agricultural activities carried out in the Mediterranean basin, and not all scholars concur that it is a viable type of farming.
The notion that similar climates result in comparable agricultural practices is contested by several scholars. Yet Mediterranean farming has produced
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The Swedish Empire became a powerful force in northern Europe by:
PLZ HELP
Answers
Answer:
C. WINNING WARS AGAINST FRANCE AND THE NETHERLANDS
Explanation:
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Answer:
The Swedish Empire became a powerful force in northern Europe by setting up colonies in Asia and the Americans
Explanation:
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The severity of storm activity along a warm front is ________ than that along most cold fronts because the rate of uplift is ________ along a warm front.
Answers
Answer:
LESS THAN , SLOWER
Explanation:
The severity of storm activity along a warm front is greater than that along most cold fronts because the rate of uplift is lesser along a warm front. A cold front occurs when colder air replaces warmer air; a warm front occurs when warmer air replaces cold air.
What happens when a warm front moves over a cold front?The warm front's surface extends vertically into the atmosphere, sloping upward and over the colder air ahead of it. Warm air rises and cools as it passes over the cold air mass, generating clouds and precipitation ahead of the surface warm front.
When two separate air masses collide, they do not combine. They rub up against one another along a line known as a front. Because warm air is lighter, it rises when it collides with cold air. It cools at high altitudes, and the water vapor it contains condenses.
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what is an earthquake ?
Answers
Answer:
when ,the tectonic plates under earth rub against each other it is known as earthquake
An earthquake is an unexpected and savage shaking of the ground brought about by the development of structural plates underneath the World's surface. It is a consequence of the arrival of gathered energy as seismic waves.
Plate Tectonics: The World's lithosphere is partitioned into a few huge and little structural plates that float on the semi-liquid asthenosphere. These plates are continually moving, but leisurely, because of the convective flows in the World's mantle. At the point when the edges of these plates interface, they can either impact, slide past one another, or move separated. The limits where they communicate are known as plate limits, and seismic action is most normal in these districts.Faults and Stress Amassing: At plate limits, rocks might become locked or stuck because of contact. As the weight on the rocks increments over the long run, it in the end surpasses the strength of the stones, making them break and delivery put away energy. The unexpected arrival of this energy produces seismic waves that spread through the Earth, prompting a quake.Seismic Waves and Effects: When a quake happens, it creates various kinds of seismic waves, including essential (P) waves, optional (S) waves, and surface waves. These waves emanate outward from the tremor's concentration, making the ground shake. The force and greatness of a seismic tremor can shift, going from minor quakes to significant shudders equipped for causing inescapable harm and death toll.To learn more about earthquake,
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It shows the movement of two oceanic plates at a convergent boundary. Which of the following land features will NOT form at this type of plate boundary?
a. deep ocean trench
b. subduction zone
c. folded mountains
d. island arc
Answers
Answer:
Not sure But I believe Folded Mountains or Island Arc EIther One
Explanation:
Select a shield volcano (not Kilauea) and a composite volcano (not Mount St. Helens) somewhere in the world and write a short paper describing both. Include at a minimum the following information its location,
date of last eruption and/or last major eruption,
general description of last eruption (e.g., casualties, damage, area covered by ash; whatever seems relevant for THIS volcano), and
how you know it's a shield/composite volcano.
Answers
A shield volcano is a wide volcano with sloping sides, which covers a large area and is normally made up of basaltic lava flows. A composite volcano, also known as a strato volcano, is made up of layers of ash, rock, and lava.
It has a steep-sided profile and has a tendency to erupt with explosive force. It is located in the Pacific Ring of Fire, a seismically active region of the world that has seen some of the most devastating volcanic eruptions in history.Here is a brief description of a shield volcano and a composite volcano:Shield Volcano - Mauna Loa, Hawaii, United States Mauna Loa is located on the island of Hawaii in the United States. Its last eruption occurred in 1984.
The eruption produced lava that flowed for approximately three weeks and reached the ocean, causing some damage to nearby structures. The Mauna Loa is known as a shield volcano due to its sloping sides and wide profile. Mauna Loa is one of the largest volcanoes in the world and covers an area of approximately 2,035 square miles.Composite Volcano - Mount Fuji, Japan Mount Fuji is a composite volcano located in Japan. Its last eruption occurred in 1707.
The eruption caused widespread damage to nearby towns and villages, and the resulting ash cloud caused significant disruptions to air traffic. Mount Fuji is a strato volcano, with steep sides and a conical shape. It is made up of layers of ash, rock, and lava, and is known for its symmetrical shape and snow-capped peak. Mount Fuji is one of Japan's most iconic landmarks and is a popular tourist destination.
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Would geographer who helps a community sol problems with water contamination could ever likely be a
Answers
It is most likely than an environmental geographer is one that helps the community solve problems with water contamination.
What is an environmental geographer?These are geographers that studies the geography on spatial aspects of interactions between humans and the natural world.
The geographer is a part of the community that solves the problems that are related to the environmental contamination of the water resources that are associated with the role of an environmental geographer and thus is focused on solving the water-born problems that arise from the pollutant in the environment.
Therefore, the environmental geographer is one that helps the community solve problems with water contamination.
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Energy transition towards renewables, mainly wind and solar, has gained momentum in the past decade. Explain some potential impacts of this transition to renewable sources of energy to the Ghanaian fossil fuels industry.
Answers
The energy transition towards renewables, particularly wind and solar power, can have several potential impacts on the Ghanaian fossil fuels industry.
Here are some key considerations:
Decreased demand for fossil fuels: As renewable energy sources become more prominent, there may be a decline in the demand for fossil fuels, such as coal and oil, in Ghana. This could impact the revenue and profitability of companies involved in fossil fuel extraction, production, and distribution.
Market shifts and job opportunities: The transition to renewables may lead to a shift in the energy market dynamics, with investments and job opportunities shifting towards the renewable energy sector. This could potentially create new employment opportunities related to the development, installation, and maintenance of renewable energy infrastructure, while traditional fossil fuel-related jobs may see a decline.
Energy independence and security: Embracing renewable energy sources can enhance Ghana's energy independence and security. By diversifying the energy mix and reducing reliance on imported fossil fuels, Ghana can reduce vulnerability to fluctuations in global fossil fuel prices and geopolitical risks associated with energy imports.
Environmental benefits: Renewable energy sources produce fewer greenhouse gas emissions compared to fossil fuels. The transition to wind and solar power in Ghana can contribute to reducing carbon emissions, improving air quality, and mitigating climate change impacts. This shift aligns with global sustainability goals and could enhance Ghana's international reputation as a responsible and environmentally conscious nation.
Technological advancements and innovation: The adoption of renewable energy technologies can drive technological advancements and innovation within Ghana. This can lead to the development of new industries, such as manufacturing renewable energy equipment, creating opportunities for research and development, and fostering collaboration with international renewable energy players.
While the transition to renewables presents opportunities for Ghana, it is important to carefully manage the transition to ensure a just and inclusive transition for workers in the fossil fuels industry. Supporting retraining programs, facilitating a smooth transition for affected communities, and fostering a diversified and sustainable energy ecosystem will be crucial for a successful energy transition in Ghana.
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H. W2 break even analysis milled tooth bit drilled 2,461 ft of limestone in 150 rotating hours. Other relevant data for this bit is: Trip time (T) = 8 hrs,Bit cost (B) = $3,000, Rig cost = 900 $/hr It is proposed to replace this bit with an insert-type bit costing 8,500. Calculate the rotating time required of the new bit at breakeven cost for equal penetration rates
Answers
The rotating time required for the new insert-type bit to reach the breakeven cost for equal penetration rates is 143.89 hours.
To calculate the rotating time required for the new bit at breakeven cost for equal penetration rates, we can use the concept of break-even analysis. Break-even analysis determines the point at which the cost of two alternatives is equal.
1. Calculate the cost of drilling with the milled tooth bit:
Cost of drilling with the milled tooth bit = Trip time cost + Rotating time cost
Trip time cost = Trip time (T) x Rig cost per hour
= 8 hrs x $900/hr
= $7,200
Rotating time cost = Rotating time x Rig cost per hour
= 150 hrs x $900/hr
= $135,000
Total cost of drilling with the milled tooth bit = Trip time cost + Rotating time cost + Bit cost
= $7,200 + $135,000 + $3,000
= $145,200
2. Set up the equation for the break-even point:
Cost of drilling with the milled tooth bit = Cost of drilling with the insert-type bit
$145,200 = Trip time cost + Rotating time x Rig cost per hour + Cost of the insert-type bit
= $7,200 + (Rotating time x $900) + $8,500
3. Rearrange the equation to solve for the rotating time:
Rotating time x $900 = $145,200 - $7,200 - $8,500
Rotating time x $900 = $129,500
Rotating time = $129,500 / $900
= 143.89 hours
Therefore, the rotating time required for the new insert-type bit to reach the breakeven cost for equal penetration rates is approximately 143.89 hours.
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4. Which two factors help shape the population growth rate?
A.) stabilization and demographic transition
B.) urbanization and industrialization
C.) feritlity and mortality
D.) none of the above
Answers
Answer:
D none of the above
Explanation:
Answer would be Birth rate and Economic development, But was not on there. But here is more understanding of it .
The factors that cooperate for population growth are the high birth rate (number of births) alongside the decrease in infant mortality, economic development and the increase in life expectancy of the population.
Such an increase in life expectancy is the result of improvements in health systems, advances in medicine and basic sanitation and adequate hygiene for populations.