• Welcome to TalkWeather!
    We would love for you to become a part of our community.
    Take a moment to look around and join the discussion.
    CLICK HERE TO JOIN TALKWEATHER

2 mile wide crack in Arizona (1 Viewer)


WesL

Administrator
Staff member
Administrator
Moderator
Messages
1,869
Location
Huntsville, AL
Special Affiliations
SKYWARN® Volunteer,
Is this the start of the new Pacific coastline?
 

Kory

Member
Messages
3,008
Location
Tuscaloosa, Alabama
Is this the start of the new Pacific coastline?
It is a result of subsidence from aquifer drawdown. Overuse of pumping wells for water over a long period has finally manifested itself. One you get subsidence from compaction of sediments, you lose that pore space, you ain't getting it back. And because the overlying sediment is so brittle, it just cracks as it's readjusting....
 

JayF

Technical Administrator
Staff member
Administrator
Moderator
Technical Admin
Messages
704
Location
Hartselle, al
Special Affiliations
HAM Callsign
W4TFO
Is this the start of the new Pacific coastline?
It could be the start of the West Coast become the Former West Coast. New Continental Drift?
 

Kory

Member
Messages
3,008
Location
Tuscaloosa, Alabama
On the topic of over-pumping aquifers, here's a picture from California. This is a HUGE problem there and in the Plains with the Ogallala Aquifer, where drawdown (not subsidence) has been nearly 300 feet. The intense agriculture only makes it worse....since infiltration into the aquifer is from the surface and those rates are extremely low due to overworked soils.

 

Kory

Member
Messages
3,008
Location
Tuscaloosa, Alabama
It could be the start of the West Coast become the Former West Coast. New Continental Drift?
We don't have any rift zones in the United States. However, we do have a transform fault (San Andres) that runs through California. That is a right moving fault, which means the land on the West side of the fault is sliding toward the Pacific. That would be the only "new" Pacific Coast as rate of sliding is 2" a year. Don't expect any new coast in our life time!

 

JayF

Technical Administrator
Staff member
Administrator
Moderator
Technical Admin
Messages
704
Location
Hartselle, al
Special Affiliations
HAM Callsign
W4TFO
We don't have any rift zones in the United States. However, we do have a transform fault (San Andres) that runs through California. That is a right moving fault, which means the land on the West side of the fault is sliding toward the Pacific. That would be the only "new" Pacific Coast as rate of sliding is 2" a year. Don't expect any new coast in our life time!


Yeah I understand that. My comment was supposed to be funny.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top