Your SlideShare is downloading. ×
Melligan field assignment
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Melligan field assignment


Published on

Published in: Education

  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

No notes for slide


  • 1. The Anza-Borrego Desert A Living Laboratory Scott C Melligan
  • 2. Anza-Borrego Desert State Park (CA)• Two hours northeast of downtown San Diego, away from the ocean and foothills, you’ll find a living laboratory of earths evolution.• It is the largest state park in California covering 600,000 acres.• 20,000 feet of sediment has been deposited in the course of 7 million years(Anza Borrego Travel Blog, 2012)
  • 3. Courtesy of Google™ EarthBorrego Desert State Park6’’N 116°17’51.86’’W
  • 4. A Link to the Past• This Desert Chuckwalla lizard lives in the ABDSP.• This species of reptile is native to the desert regions of southern California and Arizona.• In it’s natural setting it bears a passing resemblance for it’s extinct cousin, the dinosaur.(Desert Gazette, 2012)
  • 5. Split MountainThe magnificent in the parklook like a moonscapebut function as ameasurabledemonstration of howthe earth was formedwith both a visible riftvalley and continentalplate boundary.
  • 6. Clam Shell Fossils• Some 20,000 feet of sediment has been deposited in 7 million years, leaving a ripe fossil bed for academic study.• Over 500 types of fossils have been discovered in the park.(Jefferson, 2012)
  • 7. StromateliteStromatelites are formedwhen sediments aretrapped withinphotosynthesizingcyanobacteria- also calledblue/green algae- in areasof high salinityconcentrations as you’dfind in the Salton Sea.(Monroe, 2009).
  • 8. FulguriteWhen lightning greaterthan 1800° strikes sand-which is in abundance inthe desert- it can form ahollow glass tube called aFulgurite.(What is a Fulgurite, 2012)
  • 9. Gone Today, Here Tomorrow• The geologic activity along the many fault lines in southern California means that on a regular basis new features are revealed in the desert.• In fact, a 3.4 magnitude tremor occurred just one month ago only 9 miles from Borrego Springs.(Phys, 2012)
  • 10. ConclusionSeveral years ago I had the “pleasure” of living inthe ABDSP- the town of Borrego Springs- when Iworked at the now defunct La Casa del ZorroResort. It is a beautiful but unforgiving placewhich demonstrates how small man iscompared to the earths magnificence. In fact,fewer and fewer men choose to live there butthe evolution continues unabated.
  • 11. ReferencesAnza Borrego Travel Blog, (2012) Gazette (2012). Chuckwalla, George T. (2012) Fossil Treasures of the Anza Borrego Desert, James S. (2009). The Changing Earth, 5th EditionBelmont, CA: Brooks/ColePhy, Melissa (2012). 3.4 Magnitude Earthquake Near Borrego Springs Felt in RamonaRamona Patch is a Fulgurite (2012)