Hence we do not see that any conclusions can be drawn from the deltas of the Tinière to give countenance to extreme views concerning the date of the close of the Glacial period.
In this volume we shall call them kames, and the deltas spread out in front of them will be referred to as kame-plains.
Still, the significance of this estimate principally arises from the relation of the modern delta to older deltas connected with the Glacial period.
Morlot in Switzerland to obtain the chronology of the Glacial period by studying the deltas of the streams descending the glaciated valleys.
It is thus little wonder that great deltas have extended their boundaries so rapidly and that the crust is so generally sinking beneath the load.
The Swiss lakes Thun and Brienz, formed by deltas at the junction of streams tributary to a steep-walled valley.
By the laying down of the residue of its burden of sediment where it meets the sea, the river builds up vast plains of silt and clay which are known as deltas and which often form large local extensions of the continents into the sea.
As they enlarge their boundaries, the neighboring deltas eventually coalesce and so form an alluvial bench or “gravel piedmont” at the foot of the range.
Where large deltas push out from the shore into the open sea, the levees which border the individual distributaries are attacked by the waves and their materials are transported by the shore currents and built into barriers.
Snow deltas about the margins of the Fan glacier outlet of Greenland (after Chamberlin).
The dissolved material which was carried in the water is eventually left in saline deposits, and the great burden of sediment accumulates in thick stratified masses which in magnitude outstrip the largest deltas in the ocean.
By this process the waters of the main river are impounded in essentially the same manner as are the rivers of humid regions by the deltas of their tributaries.
In the Mohammedan countries described as wadi, these distributaries upon dry deltas are on the Pacific coast of the United States referred to as “washes” (Fig.
The granular nature of the snow carried by the wind is well brought out by the little snow deltas about the margins of Greenland ice tongues (Fig.
Such deltas push out from the shore and may eventually block the main channel so as to form a more or less sausage-shaped expansion of the river—a side-delta lake.
The lacustrine deposits can contain only fresh-water species of animals, marine deposits only marine animals, whiledeltas may contain the remains of marine life mingled with those which have been washed down by rivers.
The recent formation consists of land which is forming by the filling up of lakes, and by the increase of deltas from the accumulated sediment which rivers have furnished.
That an immense time must have elapsed since the rude Accadian Highlanders first settled in and reclaimed the alluvial valleys and marshy deltas of the Tigris and Euphrates.
Armont had turned to watch as the Deltas began easing Dimitri onto a metal stretcher.
And then my Deltas are going to be in the middle of a shitstorm they easily could have prevented if they'd been given the chance.
JSOC Command reports that the Deltas are on the island now and have it secured.
He had arrived in the lead Huey, to find one of the Apaches crash-landed, only one SatCom space vehicle left, and the Deltas on the ground, futilely searching for terrorists.
If we only go in on orders, then the Deltas are not going to be the ones taking the heat if this thing falls apart.
As for Dimitri, theDeltas had a medic along, and he gave him a better than fifty-fifty shot.
The cycle of erosion now in progress and recorded in the layers of stratified rock being spread beneath the sea in continental deltas has therefore been preceded by many similar cycles.
Deltas are also formed where streams lose their velocity on entering the still waters of lakes.
Borings made in the deltas of great rivers such as the Mississippi, the Ganges, and the Nile, show that the subaerial portion often reaches a surprising thickness.
Deltas and alluvial fans have many common characteristics.
Under favorable conditions deltas are built, but delta-building has not entered into the physical history of this region to any notable extent.
Deltas must have been formed where well-defined streams entered the lakes, and subaqueous overwash plains where deltas became continuous by lateral growth.
Good examples of deltas and subaqueous overwash plains do not appear to exist in the region, although conditions for their development seem to have been present.
In order to account for this phenomenon, the geologist has only to examine the small deltas of torrents which enter the Swiss lakes when the waters are low, such as the newly-formed plain where the Kander enters the Lake of Thun.
The same area was sometimes covered with vast forests, such as we see in the deltasof great rivers in warm climates, which are liable to be submerged beneath fresh or salt water should the ground sink vertically a few feet.
Rivers scarcely ever fail to carry down into their deltas some land-shells, together with species which are at once fluviatile and lacustrine.
Although its eggs have been obtained on the islands in the deltas of the Petchora and the Yenesay, these were taken by unscientific observers.
In another second the three deltas made a slight left bank and shot by the B-25 at terrific speed.
The Navy's deltas were all on the east coast, at least all of the silver ones were.
A few deltas painted the traditional navy blue were on the west coast, but not near Carson Sink.
The central pocket loop type of whorl has two deltas and at least one ridge making a complete circuit, which may be spiral, oval, circular, or any variant of a circle.
The plain whorl has two deltas and at least one ridge making a complete circuit, which may be spiral, oval, circular, or any variant of a circle.
When the deltas have been located, the ridge emanating from the lower side or point of the extreme left delta is traced until the point nearest or opposite the extreme right delta is reached.
An imaginary line drawn between the two deltas must not touch or cross any of the recurving ridges within the inner pattern area.
The reader should examine each one carefully in order to study the cores and deltas and to verify the count which has been placed below each pattern.
In tracing them only the extreme deltas are considered, the tracing beginning at the extreme left delta and proceeding toward the extreme right delta, as illustrated in figure 293.
There are present two distinct loops and two deltas (the right delta is not present as the impression was not rolled sufficiently).
An imaginary line drawn between the two deltas must touch or cross at least one of the recurving ridges within the inner pattern area.
The result of this is that the focal points of the impressions (the deltas or cores) do not appear.
The whorl is that type of pattern in which at least two deltas are present with a recurve in front in each.
Figure 305, although showing an appendage upon each recurve on the left side, is classified as a whorl of the central pocket loop type, with two deltas and a recurve in front of each.
Beaches, bars, deltas and the outflow channel of this remarkable lake are wonderfully well preserved.
Some rivers, like the Ganges, which carry such unusual quantities of sediment, are able to construct deltas in spite of considerable tides.
The river is thus building a highly compound delta, composed of the secondary deltas formed at the mouth of each of its distributaries.
All deltasappear by their section to be formed of matter totally different from that of the adjacent country.
A river is said to bifurcate, or to form a fork, when it divides into two distinct branches, as at the heads of deltas and in fluvial basins.
These deltas are too entire to allow us to suppose that they have at any time since their origin been exposed to the waves of the sea.
These deltas of the Southern States are among the greater miasmatic foyers of the world, and are as deadly in their miasms as the Campagna of Italy or the Sunderbunds of Hindostan.
Across the apex of the deltas are built great weirs (that of the Godaveri being 2(1/2) m.
In the deltas of southern India irrigation is only practised during the monsoon season.
But these strata do not form one continuous band around the margin of the basin, being rather disposed like the independent deltas which grow at the mouths of torrents along the borders of existing lakes.
Rivers scarcely ever fail to carry down into their deltas some land shells, together with species which are at once fluviatile and lacustrine.
Its deltas are great flat fields of wonderful fertility.
Hugh was thankful for another thing; the Nu Deltasdid not brand.
The Nu Deltas invited him to their house every evening, but they were not making a great fuss over him.
He told Carl that he was darn glad the Nu Deltas were above that sort of thing, and, surprisingly, Carl agreed with him.
He had gone to the Delta Sigma Delta house, not because he had the slightest interest in that fraternity but because the Nu Deltas had not urged him to remain with them.
The Nu Deltas had felt sure of both of them and had not rushed them harder because they were too busy to waste any time on certainties.
I have written to the Nu Deltas about you and told them that I hoped that they would find you acceptable, as I am sure they will.
It was a bitterly cold night in late February when the Nu Deltastook the freshmen for their "walk.
It was just the Nu Deltas and one or two others; well, maybe three or four.
The Delta Sigma Deltas welcomed him enthusiastically and turned him over to their president, Malcolm Graham, a tall serious senior with sandy hair and quiet brown eyes.
Of the deltas I will mention but a single example, to which, however, many others correspond.
I refer to the formation of deltas and of terraces.
Deltas In the river deposits which are left above sea level particles of waste are allowed to linger only for a time.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "deltas" in a variety of sentences. We hope that you will now be able to make sentences using this word.
