Geologic Mapping C

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Re: Geologic Mapping C

Post by UTF-8 U+6211 U+662F » April 16th, 2019, 7:46 pm

What's the difference between a normal and reverse fault?

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Re: Geologic Mapping C

Post by Giantpants » April 18th, 2019, 9:41 am

UTF-8 U+6211 U+662F wrote:What's the difference between a normal and reverse fault?
Normal fault sees the hanging wall move down relative to footwall and is formed by tensional stress, but reverse fault is hanging wall moving up, and is formed by compressional
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Re: Geologic Mapping C

Post by UTF-8 U+6211 U+662F » April 21st, 2019, 6:30 pm

Giantpants wrote:
UTF-8 U+6211 U+662F wrote:What's the difference between a normal and reverse fault?
Normal fault sees the hanging wall move down relative to footwall and is formed by tensional stress, but reverse fault is hanging wall moving up, and is formed by compressional
FUN and FDR- footwall up is normal, footwall down is reverse
Your turn!

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Re: Geologic Mapping C

Post by Giantpants » April 21st, 2019, 11:09 pm

Alright...

1. What is a recumbent fold?
2. What is a slickenline and how is it formed?
3. How can you tell if a fold is overturned on a geologic map?
4. Describe how magma forms at subduction zones.
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Re: Geologic Mapping C

Post by SciolyMaster » May 23rd, 2019, 3:39 pm

Giantpants wrote:Alright...

1. What is a recumbent fold?
2. What is a slickenline and how is it formed?
3. How can you tell if a fold is overturned on a geologic map?
4. Describe how magma forms at subduction zones.
1. a fold with a horizontal axial plane, i.e. turned on its side
2. idk, something to do with folds
3. the bedding around it has their strikes and dips represented by the overturned bedding symbol
4. flux melting: addition of water from the ocean lowers the rock's melting point, allowing it to melt as it subducts into the mantle
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Re: Geologic Mapping C

Post by UTF-8 U+6211 U+662F » May 23rd, 2019, 4:05 pm

SciolyMaster wrote:
Giantpants wrote:Alright...

1. What is a recumbent fold?
2. What is a slickenline and how is it formed?
3. How can you tell if a fold is overturned on a geologic map?
4. Describe how magma forms at subduction zones.
1. a fold with a horizontal axial plane, i.e. turned on its side
2. idk, something to do with folds
3. the bedding around it has their strikes and dips represented by the overturned bedding symbol
4. flux melting: addition of water from the ocean lowers the rock's melting point, allowing it to melt as it subducts into the mantle
Smooth, polished surface formed by the scraping of a fault

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Re: Geologic Mapping C

Post by BennyTheJett » May 23rd, 2019, 5:57 pm

UTF-8 U+6211 U+662F wrote:
SciolyMaster wrote:
Giantpants wrote:Alright...

1. What is a recumbent fold?
2. What is a slickenline and how is it formed?
3. How can you tell if a fold is overturned on a geologic map?
4. Describe how magma forms at subduction zones.
1. a fold with a horizontal axial plane, i.e. turned on its side
2. idk, something to do with folds
3. the bedding around it has their strikes and dips represented by the overturned bedding symbol
4. flux melting: addition of water from the ocean lowers the rock's melting point, allowing it to melt as it subducts into the mantle
Smooth, polished surface formed by the scraping of a fault
The subducting plate melts and upwells through the crust, which can often produce volcanoes.
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Re: Geologic Mapping C

Post by UTF-8 U+6211 U+662F » May 23rd, 2019, 6:02 pm

BennyTheJett wrote:
UTF-8 U+6211 U+662F wrote:
SciolyMaster wrote:
1. a fold with a horizontal axial plane, i.e. turned on its side
2. idk, something to do with folds
3. the bedding around it has their strikes and dips represented by the overturned bedding symbol
4. flux melting: addition of water from the ocean lowers the rock's melting point, allowing it to melt as it subducts into the mantle
Smooth, polished surface formed by the scraping of a fault
The subducting plate melts and upwells through the crust, which can often produce volcanoes.
Wait isn't that the same thing as the other person's answer

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Re: Geologic Mapping C

Post by BennyTheJett » May 23rd, 2019, 6:05 pm

UTF-8 U+6211 U+662F wrote:
BennyTheJett wrote:
UTF-8 U+6211 U+662F wrote:
Smooth, polished surface formed by the scraping of a fault
The subducting plate melts and upwells through the crust, which can often produce volcanoes.
Wait isn't that the same thing as the other person's answer
Oof, my bad. Didn't see the answers he gave.
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Re: Geologic Mapping C

Post by Giantpants » May 28th, 2019, 6:06 am

BennyTheJett wrote:
UTF-8 U+6211 U+662F wrote:
BennyTheJett wrote:
The subducting plate melts and upwells through the crust, which can often produce volcanoes.
Wait isn't that the same thing as the other person's answer
Oof, my bad. Didn't see the answers he gave.
Looks good to me. Your turn?
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