The Grand Canyon Of Arizona: How To See It By George Wharton James






































































































































 -  Now we have to grope blindly for a
while, as the wise ones do not have facts enough upon which - Page 132
The Grand Canyon Of Arizona: How To See It By George Wharton James - Page 132 of 322 - First - Home

Enter page number    Previous Next

Number of Words to Display Per Page: 250 500 1000

Save Money On Flights

Now We Have To Grope Blindly For A While, As The Wise Ones Do Not Have Facts Enough Upon Which To Speak With Definite Certainty.

But it is assumed that a great warping of the earth's crust took place, and that in this revolution

Some of the plateau sank, - supposedly the northern part, though it certainly extended across the Canyon nearly as far south as Williams and Ash Fork, and other parts - the edges - arose, and thus formed a basin which became another vast inland sea.

Eocene Lake. We know this was an inland sea, and had no connection with the ocean, for all the fossils and sediments deposited in it reveal that they are fresh-water organisms. In this sea, as in the earlier oceans, vast deposits of sediment were made in the early Eocene period, and another period of subsidence occurred. Then the great lake was drained, and the uplift began, slow and sure; then, and not before, were the conditions existent that have made the Canyon country as we see it to-day. Peaks and islets received the rainfall, tiny rivers were formed that grew larger and cut their way in deeper, as the uplift continued. The principal stream, which was then born, was the Colorado. It is supposed, from various evidences, that the rainfall was very much more abundant then than now, and consequently the rivers had greater flow, and more eroding and carrying capacity. The uplift continued, and the geologists tell us it did not cease until about fifteen thousand feet, deposited since Cretaceous times, were thrust up into the air.

Enter page number   Previous Next
Page 132 of 322
Words from 34888 to 35153 of 85893


Previous 132 133 134 135 136 137 138 139 140 141 Next

More links: First 10 20 30 40 50 60 70 80 90 100
 110 120 130 140 150 160 170 180 190 200
 210 220 230 240 250 260 270 280 290 300
 310 320 Last

Display Words Per Page: 250 500 1000

 
Africa (29)
Asia (27)
Europe (59)
North America (58)
Oceania (24)
South America (8)
 

List of Travel Books RSS Feeds

Africa Travel Books RSS Feed

Asia Travel Books RSS Feed

Europe Travel Books RSS Feed

North America Travel Books RSS Feed

Oceania Travel Books RSS Feed

South America Travel Books RSS Feed

Copyright © 2005 - 2012 Travel Guides