Great-basin Sentence Examples
Uefore its close the sea of the Great Basin which had persisted since the Devonian was connected with the shallow sea which covered much of the interior of the United States.
The Triassic system is well developed on the Pacific coast, where its strata are of marine origin, and they extend inland to the Great Basin region.
The Arid Transition life-zone comprises the western part of the Dakotas, north-eastern Montana, and irregular areas in Washington, Oregon, Idaho, Wyoming, California, Nevada, Utah, Colorado, Arizona, New Mexico and western Texas, covering for the most part the eastern base of the Cascade and Sierra Nevada Mountains and the higher parts of the Great Basin and the plateaus.
Thus we have in the northern hemisphere the Sahara desert, the deserts of Arabia, Iran, Turan, Takla Makan and Gobi, and the desert regions of the Great Basin in North America; and in the southern hemisphere the Kalahari desert in Africa, the desert of Australia, and the desert of Atacama in South America.
Where a river crosses a desert at a level near that of the general surface, irrigation can be carried on with extremely profitable results, as has been done in the valley of the Nile and in parts of the Great Basin of North America; in cases, however, where the river has cut deeply and flows far below the general surface, irrigation is too expensive.Advertisement
In 1899 the Uruguayan government entered into a contract for the dredging of the bay, the construction of two long breakwaters, the dredging of a channel to deep water, and the construction of a great basin and docks in front of the city.
In the spring of 1845 Fremont was despatched on a third expedition for the professed purposes of further exploring the Great Basin and the Pacific Coast, and of discovering the easiest lines of communication between them, as well as for the secret purpose of assisting the United States, in case of war with Mexico, to gain possession of California.
Where the volcanic formations were spread uniformly over the flanks of the mountains, the contrast between the canyons and the plain-like region of gentle slope in which they have been excavated is especially marked and characteristic. The eastern slope is very precipitous, due to a great fault which drops the rocks of the Great Basin region abruptly downward several thousand feet.
The southern part of the Great Basin region is vaguely designated the Colorado desert.
The region to the east of the Sierra, likewise in the Great Basin province, between the crest of that range and the Nevada boundary, is very mountainous.Advertisement
Among other engineers, Telford and Stephenson favoured the project of converting Wallasey Pool into a great basin for shipping; but, largely owing to the fears of Liverpool lest a formidable rival should thus be created, it was not until 1843 that parliamentary powers were obtained, and the work entrusted to James Rendel, who finished it in less than five years.
The portion of the great basin of the Congo included in the colony is mainly occupied, so far as it has been explored, by sandstones.
The remaining western portion of the state is lower, belongs in the Great Basin province, and is characterized by north-south mountain ranges separated by desert basins.
The western members of the high plateaus drain into the Great Basin for the most part, and in this drainage system the Sevier river is perhaps most prominent.
The Wasatch Mountain range constitutes the eastern margin of the Great Basin in central and northern Utah, and resembles the true basin ranges in that it is formed by a great block of the earth's crust uptilted along a north-south fault-line.Advertisement
Irrigation of the arid western regions of the United States began in the Great Basin of Utah when the Mormon pioneers in 1847 diverted the waters of City Creek upon the parched soil of Salt Lake Valley.
In 1900 nearly 90% of the land reclaimed by irrigation in the whole state lay within the Great Basin.
These plains slope gently toward the east, those of the Amazon basin apparently lying in great terraces whose escarpments have the character of low, detached ranges of hills forming successive rims to the great basin which they partly enclose.
South of these mountains lies the northern limit of the Great Basin region.
Goose Lake, for example, lies in the Great Basin at some seasons; but at other times it overflows and becomes a part of the drainage system of the Sacramento river.Advertisement
The greatest level, or approximately level, area in the Great Basin region of Oregon is the so-called Great Sandy Desert, a tract about 150 m.
The most prominent mountain range in the Oregon portion of the Great Basin is the Steens Mountains in the S.E., which attain an altitude of about 9000 ft.
In Southern Oregon, especially in the Great Basin region, there are numerous lakes.
While flowers bloom throughout the year at Portland, frosts have occurred in every month of the year at Lakeview, in the Great Basin.
The topography of the Great Basin region in Idaho is similar to that of the same region in other states (see Nevada); in Idaho it forms a very small part of the state; its mountains are practically a part of the Wasatch Range of Utah; and the southward drainage of the region (into Great Salt Lake, by Bear river) also separates it from the other parts of the state.Advertisement
The latter enterprise Alexander designed to conduct in person; under his supervision was prepared in Babylon an immense fleet, a great basin dug out to contain 1000 ships, and the watercommunications of Babylonia taken in hand.
Geologically considered, the country may be divided into three regions - a central, and the largest, comprising the whole width of the Aravalli system, formed of very old sub-metamorphic and gneissic rocks; an eastern region, with sharply defined boundary, along which the most ancient formations are abruptly replaced by the great basin of the Vindhyan strata, or are overlaid by the still more extensive spread of the Deccan trap, forming the plateau of Malwa; and a western region, of very ill-defined margin, in which, besides some rocks of undetermined age, it is more or less known or suspected that Tertiary and Secondary strata stretch across from Sind, beneath the sands of the desert, towards the flanks of the Aravallis.
This is the case, for instance, in the Caspian sea, the Aral and Balkhash lakes, the Tarim basin, the Sahara, inner Australia, the great basin of the United States and the Titicaca basin.
The Great Basin is not, as its name implies, a topographic cup. Its surface is of varied character, with many independent closed basins draining into lakes or "playas," none of which, however, has outlet to the sea.
Between this ridge and the valley of the Colorado river lies all that portion of the Great Basin included within the state.
Many of the block mountains of the Great Basin are of complicated internal structure, showing rocks of all ages - slate, limestone, quartzites, granite, multi-coloured volcanic rocks, and large areas of lava overflow.
This vegetation, covering plains, mesas, and even extending up the sides of the mountains, gives the entire landscape the greyish or dull olive colour characteristic of the Great Basin.