Fossil shells, of forms such as now abound in the sea, are met with far inland, both near the surface, and atgreat depths below it.
Hence the production at great depths of a class of rocks analogous to the volcanic, and yet differing in many particulars, might almost have been predicted, even had we no plutonic formations to account for.
They live in Arctic waters, often descending to great depths, in which case the body is very soft.
The species live in the warm seas, some in very shallow water, others descending to great depths, the deep-sea forms being small and more or less degenerate.
The Rondeletiidæ are naked black fishes with small eyes, without adipose fin and without luminous spots, taken at great depths in the Atlantic.
The action of waves is confined to the coast, and never extends to great depths.
There is also reason to suppose that they exist at great depths, where the opposing superficial currents entirely conceal them.
This increase is due in part to the augmentation of pressure, and in part to the larger share of carbonic dioxide which the water at great depths holds.
But, however well adapted such an apparatus might be for rough nautical purposes, scientific accuracy could not be expected from the armed lead, and to remedy its defects (especially when applied to sounding in great depths) Lieut.
Such layers are often carried by their dip to great depths, and water may circulate in them to far below the level of the surface streams and even of the sea.
The texture of the rock of bosses proves that consolidation proceeded slowly and at great depths, and it is only because of vast denudation that they are now exposed to view.
Frost and heat and cold can only act within the few feet from the surface to which the necessary temperature changes are limited, while water penetrates and alters the rocks to great depths.
As to the thermometer itself, it is important to protect it against the pressure which becomes so considerable at great depths; to do this the reservoir is surrounded by an envelope of thick glass about three quarters full of mercury.
Negretti and Zambra for the purpose of ascertaining the temperature of the ocean at great depths.
What is the nature of the red clay found at great depths in the Atlantic and Southern Oceans?
Its roots reaching to great depths, make it drought-resistant; they also gather much nitrogen from the air, and it yields assuredly whether the season be wet or dry.
In order to dive to great depths it must be able to make its body heavier than a corresponding bulk of water, and conversely at will make it lighter in order to reach the surface.
The last-named are all hot or thermal as well as mineral springs, deriving their heat either from the natural heat of the earth at great depths, or from volcanic action.
At great depths, as a mile or more, where all light is lost, they may become aborted or rudimentary, and may be covered by the skin.
Both are bathybial fishes, soft in texture, and found in great depths.
The rays rarely descend to great depths in the sea.
But a depression of a few hundred feet at the surface implies a considerably greater depression at a depth of several thousand feet from the surface, and it is at great depths, therefore, that the most violent folding must take place.
Every geologist knows that granite is a rock which could only have been formed and consolidated at great depths.
These hills owe their existence, as such, to the fact that they are composed of more enduring kinds of rock than the softer sandstones and shales by which they are surrounded, and underneath which they were formerly buried to great depths.
With a few exceptions living on the surface, they are all inhabitants of great depths.
The majority are inhabitants of the colder parts of the South Pacific and South Atlantic, at great depths, whilst a few species only are found in the tropics.
This strange fact may be explained by the circumstance, that they are in general rare, and restricted to a few localities, and that probably all the species are inhabitants of great depths.
The water in it can be obtained either by means of ordinary shafts, or by Artesian wells bored sometimes to great depths, from which the water will frequently rise to the surface.
Besides, there are thousands of square miles of surface that have been covered, often to great depths, by deposits of volcanic dust thrown out at one time or another from the craters of the then active volcanoes.
Various gases also, rendered liquid by pressure at great depths, may aid in causing volcanic outbursts and in fissuring and convulsing the rocks during earthquakes.
Here the bed is marked by great depths and by many irregularities and is, therefore, a region where seaquakes are common.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "great depths" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
