The lignites are generally dark brown, and of obvious woody structure.
As we have stated, products analogous to those derived from cannel coal are obtained by the destructive distillation of bituminous shales and schists, and lignites or brown coals.
Krantzite, a soft amber-like resin, found in the lignites of Saxony.
Hebert to be older than the Lignitesand Plastic clay, and to coincide in age with the Thanet Sands of England.
If land predominated, the only monuments we are likely ever to find of Miocene date are those of lacustrine and volcanic origin, such as the Bovey Coal in Devonshire, the Ardtun beds in Mull, or the lignites and associated basalts in Antrim.
Elie de Beaumont, I have included in the same Flora the plants contained in the Lignites of the shores of the Baltic and Pomerania, so rich in amber, in which these vegetables have often been preserved.
In the subcretaceous marine lignites of the Isle of Aix, near La Rochelle, and of Pialpinson, in the department of the Dordogne; these are the most ancient beds of the Cretaceous formation, or the last of the Jurassic period.
This small Flora is almost entirely founded on fossil plants, collected among the marine lignites of the Isle of Aix, near La Rochelle, long since described by M.
Very serviceable lignites of Cretaceous age are found on the Pacific slope, to which age those of Vancouver's Island and Saskatchewan River are referable.
In most lignites there is, as a rule, a comparatively large proportion of sulphur, and in such cases it is rendered useless as a domestic fuel.
In Abyssinia lignites are frequently met with in the high lands of the interior.
This vast improvement in methods of treatment and recovery of heating elements and by-products will doubtless have a widespread effect on utilization of lignites in other parts of the world.
It has greater density than the lignites or subbituminous coals, is black, more brittle, and breaks with a cubical or conchoidal fracture.
In the western United States there are great quantities of subbituminous coal of Cretaceous age, and of Tertiary lignites which have locally been converted by mountain upbuilding into bituminous and semibituminous coals.
Jurassic coals are known in many parts of the world outside of North America, and lignites of Tertiary age are widely distributed through Asia and Europe.
By analysis, these coals show a larger percentage of oxygen than the typical bituminous coal, but decidedly less than is found in the brown coal of Germany, or in some of the lignites of Montana.
And when brought to the laboratory, it is found that chemically these lignites vary even more than they do optically.
None of the lignites which I saw were as low in grade as the typical lignite.
The fibrous lignites which thus contain amber belong to the dicotyledinous woods.
Lignites of the same age as those of Duernten and Utznach occur in many places both on the north and south sides of the Alpine chain.
The lignites and lacustrine strata of Val Gandino, and of Val Borlezza, as I have elsewhere shown,[BK] are clearly of interglacial age.
Alum was formerly obtained from the clays of Alum Bay; and the lignites have been used as fuel near Corfe and at Bovey.
There is a lacustrine group which has usually been placed in the Lower Eocene, but the discovery of Anthracotherium magnum in the interbedded lignitesproves it to be Oligocene, in part at least.
These Bovey Tracy lignites are of Lower Miocene age, and they are lacustrine in origin.
The lignites of Austria have yielded very numerous plants, chiefly of a tropical character--one of the most noticeable forms being a Palm of the genus Sabal (fig.
Some lignites are, however, quite as brilliant as anthracite; cannel and jet may be turned in the lathe, and are susceptible of taking a brilliant polish.
It varies in colour from a light brown in the newest lignites to a pure black, often with a bluish or yellowish tint in the more compact anthracite of the older formations.
In theselignites Anodon and other fresh-water shells are found.
If, then, lignites have not become soft coal, and if the latter has not become anthracite, it is not that time was wanting, but climatic conditions and environment.
Anthracite and bituminous coal would have belonged especially to primary times, lignites to secondary and tertiary times, and peat to our own epoch, without the peat ever being able to become lignites or the latter coal.
These lignites or modern coals are only peat beds which have been buried for a longer or shorter time under clay, sand, or solidified rock, and have progressed farther or less far on the road to coal.
I may add, that this most ancient of Scottish lignites presents several peculiarities of structure.
The lignites of Iceland are made up of tulip, plantain, and nut-trees, even the vine sometimes occurring.
We must not confound the yellow amber of the Baltic with the red amber found in Italy, in the mountains of Lebanon, and even in some lignites in the south of France.
Fibrous alum is found in Europe only in formations posterior to those of transition, in lignitesand other tertiary formations belonging to the lignites.
A slow decomposition of the pyrites, which probably act as so many little galvanic piles, renders the waters alumiferous, that circulate across the bituminous lignites and carburetted clays.
According to their position these sandstones may be considered as belonging to the formation of green sandstone, or sandstone with lignites below chalk.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "lignites" in a variety of sentences. We hope that you will now be able to make sentences using this word.
