Saturday, April 28, 2012

"Disneyland will never be completed. It will continue to grow as long as there is imagination left in the world."-Walt Disney

(Map of the landforms throughout the lands of Disney)
Disneyland is made up of eight different lands and each land is different from the other.  These lands are all made up of different landforms, from the jungles of Africa and Asia to the mountains of Utah and the Alps. The three mountains that can be found inside Disneyland are Big Thunder Mountain, Matterhorn Mountain, and Splash Mountain. The mountains are all found on different plates and are each made up of different materials like gneiss or sandstone.  These mountains spent thousands to millions of years growing, but have all started weathering and eroding at their own paces.  The Rivers of America and river in Splash Mountain will change as time goes on and helped carved out the land we see today making Disneyland a fluvial landscape. 

(Matterhorn is eroding away from water evaporation of a nearby body of water was carried to the mountain top where it was released as snow and when it melts it runs of into the mountain side where a river has formed into a waterfall.  It runs over the bedrock causing erosion to happen slowly reaching downstream where it occurred rapidly.)
Matterhorn was created by the plates of Fantasyland and Tomorrowland and when these two lands converged against one another forming a Fold Mountain made of gneiss. When the plates hit they wrinkled lifting the mountain to the surface causing the folds.  In 10 years the waterfall carve deeper into the mountain side carrying more of the sediment way.  In 100 years the top will also start to recede away as more snow falls into the top and melts carrying the tops sediment down the river.  In 1000 years the mountain will decrease in size by a few inches as the top erodes, and the waterfall will be a little bigger as is continues to carve into the side.
(At one point this area was a plateau until streams weathered over the rock creating fins.  Water seeped into the fins and froze during the night causing the ice to expand and fracture the rocks.  The structure erodes away creating the tower like formations call hoodoos.)
Located in Frontierland, Big Thunder Mountain Railroad was originally formed from layers of iron-rich sandstone, shale, and conglomerates deposited in layers making this originally a plateau. 10 years from now the hoodoos will hardly have any noticeable changes as they weather away.  However in 100 years the structure will start to thin and some may start to fall over if the thinner areas continue to erode faster than the bigger areas.  The biggest changes will happen in 1000 years when the fins get bigger the hoodoos will start to break apart from the bottom and some of the bigger ones will start to fall.
(Left: The top of the mountain was broken off by the pressure roots from the breaking off rocks when it was alive. The waterfall was formed from the river that flows throughout the area.  Right: The river is a perennial flow and carries bedload with large clasts inside helping shape the river.)
The final mountain is in Critter Country where Splash Mountain was formed by blocks of rock materials slide along faults causing a fault mountain formed by large areas of bedrock widely broken up by faults creating large vertical displacements in the continental crust. 10 years from now the waterfall and river will continue to carve deeper into the mountain.  100 years from now the shape of the river will change from point bars and cut banks defining it into an s-shape.  1000 the river will cut into the valley making its flood plain larger as the waterfall digs deeper and widens into the mountain.   
(Rivers of America is a perennial flow carrying a suspended load)
The major river in Disney is the Rivers of America a mature river which is less steep than youthful rivers and flows more slowly and is fed by many tributaries. The channels erode wider rather than deeper. In ten years Rivers of America will not have any major changes except for a little bit more erosion on the sides.  In 100 years this river will have expanded a few more inches causing some trees to fall in when the land erodes away. In 1000 this river will become an old river with a low gradient and low erosive energy.
Here You Leave Today and Enter the World of Yesterday, Tomorrow, and Fantasy

Photo Courtesies (in order):                                                                                                                  

Monday, April 9, 2012

World Famous Jungle Cruise

Within Adventureland sits a tropical rainforest full of exotic animals and beautiful weather.

(The fog’s a type of low-lying stratus cloud formed when  water vapor condenses into the air as tiny liquid water droplets.)
During the mornings fog lifts above the water.  This particular fog is known as stream and is formed from cold air moving over the warm water of the river.  Evaporation from the exposed water is absorbed by the air re-condenses into visible fog.   Wind convergence into an upward motion causing the fog to lift from the surface of the water.

  (This rainbow effect within the rain is formed  when sunlight shines from behind the water at a low altitude angle.)
Rain falls when the amount of moisture in air is the percentage of the total water vapor air can hold.  At a particular air temperature it becomes saturated and forms into a cloud.  Precipitation forms from the collision of rain drops within a cloud.  The droplets keep growing until they reach a mass where they are heavy enough to overcome the force of the wind, and can't stay in the cloud they fall down as rain.

 
(A monocline is step-like fold in rock strata sits on the overhang reacted from the earlier extensional faults lower on the rock formation.)
This zeugen rock sits within the river forming by the processing of erosion and weathering.  Originally flat areas of hard rock are overlying soft rock are caused by wind erosion concentrates a few feet over the ground.  This is also a similar rock pattern that causes waterfalls like Schweitzer Falls on top pf the formation.  Wind speeds increase with height narrowing out the zeugen closer to the bottom.  Chemical weathering at the base is due to the water of the river moving away pieces of the sediment.

The talus cave (which has now become the lion’s den) was formed from the opening between the rocks that fell into a pile.  Caused from chemical and physical weathering and erosion moving the sediment off the cliff the rocks hung from.  Water from the rains can flow into the joints of the cliff and disconnect them from the rock wall.


Tours Departing Daily:
Photo Courtesies (in order):