Anyone know of a good, detailed San Andreas Fault map?

  • Thread starter Thread starter DataPlumber
  • Start date Start date
  • Tags Tags
    Fault Map
Click For Summary
SUMMARY

The discussion centers on locating detailed maps of the San Andreas Fault (SAF) and related geological features near Frazier Park. Users recommend the website geology.com, which offers a Google Maps interface with a fault-line overlay, although it has usability issues with zoom functionality. Additionally, the USGS HQ in Menlo Park is highlighted as a source for affordable printed maps. The conversation also touches on the geological history of the region, including the concept of exotic terranes and their origins from Gondwana Land rocks.

PREREQUISITES
  • Understanding of geological mapping techniques
  • Familiarity with the San Andreas Fault and its geological significance
  • Knowledge of exotic terranes and their geological implications
  • Basic navigation skills in online mapping tools
NEXT STEPS
  • Research the geological features of the San Andreas Fault Zone (SAFZ)
  • Explore the concept of exotic terranes in North America
  • Learn how to use geological mapping tools effectively
  • Investigate resources available at the USGS for geological maps
USEFUL FOR

Geologists, students of earth sciences, outdoor enthusiasts exploring geological features, and anyone interested in the geological history of California.

DataPlumber
Messages
3
Reaction score
0
I live less than a mile from the SAFZ near Frazier Park, and would like to identify related surface features like escarpments, tuff outcrops, etc. After much Googling, I have found no maps that would help me locate the identified fault line locations within even 1000ft. None.
Has anyone here seen any such maps that do not require $$ or proprietary viewers?
 
Earth sciences news on Phys.org
Andre said:
Did you try this? http://geology.com/san-andreas-fault/

Unfortunately the zoom buttons don't show in the upper left corner. You have to move around with the mouse to find them

Thanks! That works quite well. Looks like a Google Maps with a fault-line overlay. It looks familiar; I must have come across this before but did not check it's good resolution. It proves that the volcanic tuff did originate right on the fault line. I wonder how old that is...
 
DataPlumber said:
I live less than a mile from the SAFZ near Frazier Park, and would like to identify related surface features like escarpments, tuff outcrops, etc. After much Googling, I have found no maps that would help me locate the identified fault line locations within even 1000ft. None.
Has anyone here seen any such maps that do not require $$ or proprietary viewers?

If you would like printed maps/posters, the USGS HQ at Menlo Park south of San Francisco have an excellent collection. Their prices are very affordable. On one of my visits there, I stocked up on a bunch of maps.
Even if you don't want to buy maps its still a cool place to visit :)

cheers
Dave
 
DataPlumber said:
Thanks! That works quite well. Looks like a Google Maps with a fault-line overlay. It looks familiar; I must have come across this before but did not check it's good resolution. It proves that the volcanic tuff did originate right on the fault line. I wonder how old that is...
Just curious, but how could you ascertain the origin of a tuff was right on the fault line from that image?
 
Benthos said:
Just curious, but how could you ascertain the origin of a tuff was right on the fault line from that image?

and not just that but it probably didnt originate in that area anyway
everything west of the SAF ( and some sections east of it, particularly around San Francisco, between the SAF, Calaveras and Heyward Faults) originated 1000's of km to the south. most of this material has been rafted along by the movement of the SAF and assoc faults and accreted onto the western side of the USA. These slices of crust are called Terranes and also Exotic Terranes
Do a google search on "exotic terranes north america" there is a wealth of good info.

From my university studies in geology, I recall that researchers have found original Gondwana Land rocks along the California region. definitely qualifies as an exotic terrane :)

cheers
Dave
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 11 ·
Replies
11
Views
6K
  • · Replies 1 ·
Replies
1
Views
10K