Help


[permalink] [id link]
+
Page "Grand Canyon" ¶ 9
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

uplift and has
According to one principle of classification, an emergent coastline is a coastline which has experienced a fall in sea level, because of either a global sea level change, or local uplift.
Strengthening of the Asian monsoon has been linked to the uplift of the Tibetan Plateau after the collision of the Indian sub-continent and Asia around 50 million years ago.
Its area has been expanding with land reclamation and coastal uplift in the north, but global sea level rise has diminished these effects.
Subsequent uplift and erosion of the New England Fold Belt has seen the majority of the surrounding sediments and metamorphic rocks eroded away, with the Stanthorpe Adamellite remaining due to its resistance to weathering.
He has special interest for international affairs, uplift of the Scheduled Castes and Scheduled Tribes, and woman and child welfare.
The regional economy has been in steady decline for many years, with only a small uplift brought about by the global real estate bubble.
The Variscan uplift has caused much faulting and Glossopdale was the product of glacial action in the last glaciation period that exploited the weakened rocks.
There is evidence that the area's elevation has increased over the years, suggesting that uplift took place and is still taking place.
The Nation of Islam has grown into one of the wealthiest and best-known organizations in black America, offering numerous programs and events designed to uplift African Americans.
Flory describes imperialism as " the lie that we're here to uplift our poor black brothers rather than to rob them .” However his view is ridiculed by his friend, Dr. Veraswami, who believes that British rule has helped civilise the people, improve education and build infrastructure.
It's estimated that approximately 25 km of uplift has occurred, however the rate of uplift has been countered by erosion.
Volcanism on the island has been significantly affected by tectonism that formed a series of horsts and grabens ; at least of uplift has formed as a result of resurgent doming during past 33, 000 years.
The geological uplift after ice age has been relatively high at the mouth of the Kokemäenjoki river.
Current research has shown that the time-history of the uplift is probably much shorter than predicted, however.
In January 2010, the USGS stated that " uplift of the Yellowstone Caldera has slowed significantly " and that uplift continues but at a slower pace.
On forested buttes lying between the Tongue River and Pumpkin Creek is the Ashland Ranger District of the Custer National Forest, which has three separate ranger districts, the other two being the Beartooth Ranger District located in the area of the Beartooth uplift, and the Sioux Ranger District located in the southeast corner of Montana and the northwest corner of South Dakota.
Around the world, a combination of tectonic coastal uplift and Quaternary sea-level fluctuations has resulted in the formation of marine terrace sequences, most of which were formed during separate interglacial highstands that can be correlated to Marine Oxygen Isotopic Stages ( MIS ) ( for example, Johnson and Libbey ( 1997 ).

uplift and stream
Fast uplift of a mountain range in an arid environment often does not allow its canyons enough time to cut a classic V-shape all the way down to the stream bed.
Tectonic uplift can significantly alter major elements of it, however-for example the jet stream -, and plate tectonics shift ocean currents.
Uplift of the central Kentucky area rejuvenated the stream, causing it to cut a deep canyon, but preserving the meanders that indicate the stream existed prior to the uplift.
The entire canyon is an example of a superposed or antecedent stream, in which the river pre-dates the uplift of the rocks and kept pace with erosion as uplift occurred.

uplift and gradient
Subsequent tilting of the Sierra block and the resulting accelerated uplift of the Sierra Nevada increased the gradient of western-flowing streams.
Additionally, it is suspected that tectonic uplift of the land around the lower Skokomish River may be contributing to flooding by decreasing the gradient of the river channel, even prior to any major anthropogenic disturbances.

uplift and Colorado
The early Cenozoic uplift of the Rocky Mountains of Colorado provide an example.
The uplift of the Colorado Plateau is uneven, and the Kaibab Plateau that Grand Canyon bisects is over a thousand feet higher at the North Rim ( about ) than at the South Rim.
The great depth of the Grand Canyon and especially the height of its strata ( most of which formed below sea level ) can be attributed to 5, 000 to 10, 000 feet ( 1500 to 3000 m ) of uplift of the Colorado Plateau, starting about 65 million years ago ( during the Laramide Orogeny ).
The Colorado River in the Southwest and the Snake River in the Northwest are two examples of tectonic uplift.
As an illustration, the uplift of the Colorado Plateau, combined with the opening of the Gulf of California to the sea, established sea level as the base level for the Colorado River and led to the ( geologically ) rapid erosion that resulted in the Grand Canyon.
Subsequent uplift of the Colorado Plateau slowly raised these formations much higher than where they were deposited.
Subsequent uplift of the Colorado Plateau and tilting of the Markagunt Plateau started 13 million years ago.
Tectonic activity resumed in Mid Cenozoic time and started to unevenly uplift and slightly tilt the Colorado Plateau region and the region to the west some 20 million years ago ( as much as 3 kilometers of uplift occurred ).
These layers have undergone 5000 to 10, 000 feet ( 1500 to 3000 m ) of uplift starting about 65 million years ago with the Laramide orogeny which has increased the ability of the Colorado River to cut its channel to make individual plateaus out of the Colorado Plateaus region.
Geologically the plateau was created approximately 10-20 million years ago by an uplift on the larger Colorado Plateau.
More recent uplift of the entire Colorado Plateau and the resulting erosion has exposed this fold at the surface only within the last 15 to 20 million years.
Most of the erosion that carved today's landscape occurred after the uplift of the Colorado Plateau with much of the major canyon cutting probably occurring between 1 and 6 million years ago.
The Colorado Plateau with its spectacular scenic canyons, the Grand Canyon, is also the result of broad tectonic uplift followed by river erosion.
The uplift runs north-south for several hundred miles from central Colorado into northern New Mexico.
The Uncompahgre Plateau in western Colorado is a distinctive large uplift part of the Colorado Plateau.
Several have suggested that Plio-Pleistocene uplift caused diversion of the ( Colorado and / or Gunnison ) river ( s ) and abandonment of the canyon.
At the western edge of the most seismically active area in North America, the range is a great uplifted plateau, cut off from the Colorado Desert to the east by the Elsinore Fault Zone, where vertical movement over the last two million years has amounted to thousands of feet of tectonic uplift.

uplift and River
Due to land uplift, around 5000 BP the River Vuoksi started emptying into Lake Ladoga as a new outlet of Lake Saimaa.
The path of the Arkansas River was already set when the granite uplift that would eventually form the Rocky Mountains began.
Subsequently, earthquakes caused crustal uplift, which cut off the estuary from the bay, making it into a floodplain with the Kashio River at its center.
This is due to relatively slow uplift rates as well as fairly constant sediment wash from the Columbia River.
The geological history of the formation may be traced back some 50 million years, when the uplift of the continental margin in this region resulted in the ancestral Herbert River to change its course from westwards to eastwards.
A western branch, which disappeared due to ongoing land uplift, was an alternative route for the Karelians to reach the Gulf of Finland when the River Neva was blocked by enemies.
It was uplift along this reverse fault segment, in this event, that created waterfalls on the Mississippi River, disrupted the Mississippi River at Kentucky Bend, created a wave that propagated upstream and caused the formation of Reelfoot Lake.
Both the San Rafael River and Muddy Creek drain out of the high Wasatch Plateau and the cut directly across the uplift of the Reef, which marks them as " superimposed streams ", pre-dating the time of the uplift.
The Fremont River has been able to keep up with the uplift of the Waterpocket Fold.
Larger streams, such as the Fremont River, were more likely to keep up with the uplift by downcutting into the Waterpocket Fold faster.
The rise of the Black Hills uplift on the east and the Hartville uplift on the southeast side of the basin created the present outline of the Powder River Basin.
The Murray River became dammed by uplift of over 250 metres ( 820 ft ) in the Grampians in Victoria during the Pleistocene about 2. 5 Mya.
The geography at Barmah is explained by a geological event that occurred 25, 000 years ago, when an uplift of land along the Cadell fault forced the Murray River onto a new course for 500km.
: About 25, 000 years BP, an uplift of the plains near Moama first dammed the Murray River and then forced it to take a new course.

0.251 seconds.