| Digital-Desert : Mojave Desert |
>>> Route 66 <<< From the Heartland to the Coast |
Photography by Walter Feller |
| features - ecology: wildlife - plants - geography: places - region map - map/sat - roads & trails: route 66 - video - aerial - 360 photos - old west - communities - lodging |
| ghost towns - gold mines - parks & ...: joshua tree - death valley - mojave preserve - wilderness - native culture - history - geology: natural features - glossary - comments |
|
|
Joshua Tree National Park -
Mojave Ecozone: Geology Tour Road: Stop #6 Rock SculptureThe White Tank monzogranite found at Joshua Tree National Park displays probably the most extensive rounded rock masses than any place in the world. Large bodies of monzogranite have sets of cracks, called joints, that intersect at roughly right angles to each other. Nearly vertical cracks probably occured when the rock cooled and contracted; faulting may have also contributed. As erosion removed the overlying rock, horizontal cracks were made when the rock mass expanded upward.Jointing produces blocks of more or less cube-shaped rock. While the monzogranite was below the surface water containing carbon dioxide seeped down through the joint. This action wore away at the cracks little by little, breaking off mineral grains from the joints. This type of erosion is more effective at the edges and corners, and over a long period of time, changed the rock shape from cubical to spherical.
PREVIOUS - NEXT
Also see: Rockpiles and DikesGeologists believe the face of our modern landscape was born more than 100 million years ago. Molten liquid, heated ... |
| features - ecology: wildlife - plants - geography: places - region map - map/sat - roads & trails: route 66 - video - aerial - 360 photos - old west - communities - lodging |
| ghost towns - gold mines - parks & ...: joshua tree - death valley - mojave preserve - wilderness - native culture - history - geology: natural features - glossary - comments |
|
Country Life Realty Mountain Homes and Real Estate for Sale |
~ Wickless Candles by Scentsy ~ The Most Wonderful Time of the Year ... ... Is here |
MH Sleds Saucer sleds for the snow Life time guarantee!!! |
|
Abraxas Engineering privacy |
Copyright ©Walter Feller. All rights reserved. |