what is the compositional range of the lavas erupted in association with continental hotspots and rifting? what are the sources of the lavas?

Answers

Answer 1

The compositional range of lavas erupted in association with continental hotspots and rifting is diverse, including basaltic, andesitic, and rhyolitic lavas.

The compositional range of lavas erupted in association with continental hotspots and rifting can vary widely, but typically they are mafic (containing higher amounts of iron and magnesium) to intermediate in composition. These lavas are generally derived from the mantle, but can also incorporate crustal material during the melting process.

The sources of the lavas can be attributed to a combination of factors including mantle plumes, lithospheric thinning, and melting due to the intrusion of hot magma into the crust. These processes can result in the formation of large igneous provinces and rift-related volcanic fields, which can have significant impacts on the geology and landscape of the surrounding regions.

Learn more about continental hotspots: https://brainly.com/question/31831712

#SPJ11

Related Questions

Match the type of geologic hazard with the method that can be used to date when it last occurred.
Volcanic eruptions:___
Earthquakes:___
Flooding:___
A. Using isotopic methods, such as Ar-Ar dating.
B. Using cross-cutting relations to determine the age of the fault.
C. Using the amount of soil development and carbon-14 dating on terraces.

Answers

The methods used to date the occurrence of geologic hazards are: Volcanic eruptions: Using isotopic methods, such as Ar-Ar dating. Earthquakes: Using cross-cutting relations to determine the age of the fault.
Flooding: Using the amount of soil development and carbon-14 dating on terraces.

To determine when a volcanic eruption last occurred, isotopic methods like Ar-Ar dating can be employed. Ar-Ar dating involves measuring the ratios of different isotopes of argon in volcanic rocks to determine their age. By analyzing the decay of radioactive isotopes, scientists can estimate the time since the eruption.

For earthquakes, the age of the fault can be determined using cross-cutting relations. Geologists study the relationships between different rock layers and fault lines. If a fault line cuts across different rock layers, the fault is considered younger than the layers it intersects. By analyzing the relative ages of the fault and surrounding rocks, scientists can estimate the time of the last earthquake along that fault.

In the case of flooding, the age of the event can be determined by examining the amount of soil development and using carbon-14 dating on terraces. Flooding deposits can lead to the development of new layers of soil over time. By analyzing the degree of soil development and conducting carbon-14 dating on the organic material within the terraces, scientists can estimate the age of the flooding event.

To know more about geologic hazards click here brainly.com/question/13428619

#SPJ11

give an example of a natural resource that can be chemically changed to make a synthetic resource and describe its impact on society

Answers

Answer:

A common example is plastic. To make it, petroleum is processed and chemically changed to eventually become plastic. The series of chemical reactions that are used to change natural resources into synthetic products is called chemical synthesis.

Other Questions

All else equal, as the price of a product falls, the quantity supplied increases. T/F Which of the following best summarizes how disengagement theory views the elderly?A) As people age,they are more interested in watching TV than interacting with others.B) As people age,they no longer want to participate fully in society.C) As people age,they need to be removed from their traditional roles in order to free up those roles for the younger generation.D) As people age,they are not given the same respect as the younger generation. if neuroimaging studies show that auditory hallucinations are associated with increased activity in speech production are, then PET scans should demonstrate ... what does the subject of eschatology have to say to us today as we live our daily lives give an example of a natural resource that can be chemically changed to make a synthetic resource and describe its impact on society in this current age of globalization, companies are ________ earlier and ________ faster, often with help from technology. in the u.s., the idea of a "legitimate" or "illegitimate" child refers to whether Match the type of geologic hazard with the method that can be used to date when it last occurred.Volcanic eruptions:___Earthquakes:___Flooding:___A. Using isotopic methods, such as Ar-Ar dating.B. Using cross-cutting relations to determine the age of the fault.C. Using the amount of soil development and carbon-14 dating on terraces. the process of accurately amplifying a sample of dna is called __________________________. The state has attempted to streamline bureaucracy by implementing privatization which is the:______. Marketing communication strategy can be decided by conducting an image analysis by profiling the target audience in terms of ________.A) brand knowledgeB) purchase patternsC) demographic characteristicsD) income levelsE) psychographic characteristics dizziness brought on by standing too long in the heat of suddenly stopping exercise is referred to as heat? Which method is the best way to communicate about difficult issues?by letterover e-mailin personon the phone two powerful voices that emerged on the hard bop scene that benefited with successful careers and widespread popularity following their affiliation with art blakey were identify the literary form suggested by the centers around a character trying to solve a problem; easy to read in one day you are classically conditioning your turtle zigi to blink when seeing a photo of lady gaga. what is the unconditioned stimulus? Which global supply chain characteristic moves beyond visible material flows to invisible dimensions such as brands, services, technological collaboration, and financing?BorderlessDeregulatedCyber-connectedEnvironmental ConsciousnessSocial Responsibility light with a wavelength of 694 nmnm passes through a slit 7.90 mm wide and falls on a screen 1.95 mm away. help i cant solve this This reflex involves extrinsic eye muscles, and is controlled by the somatic nervous system.photopupillaryconvergenceaccommodation pupillary