Breccia Sentence Examples
At Ruby Hill near Bingara they were found in a breccia filling a volcanic pipe.
It was discovered by chance in 1858, having been until then hermetically sealed by a mass of limestone breccia.
Sandstones, quartzites, conglomerates and breccia make up the formation.
Cohen, who regarded the pipes as of the nature of a mud volcano, and the blue ground as a kimberlite breccia altered by hydrothermal action, thought that the diamond and accompanying minerals had been brought up from deep-seated crystalline schists.
Red granite was obtained from the First Cataract, breccia and diorite were quarried from very early times in the Wadi Hammamat, on the road from Coptos to the Red Sea, and porphyry was brought, chiefly in Roman times but also in the prehistoric age, from the same region at Jebel Dokhn.Advertisement
In the second prehistoric civilization barrelshaped vases became usual; and to the former materials were added slate, grey limestone and breccia.
Throughout these separate basins the prevailing rock is a red sandstone, varied in the narrow valleys with intercalated masses of breccia.
The greater part of the surface is composed of a volcanic breccia, with here and there lava-streams exposed in ravines, and sometimes on the surface.
It is, however, now more generally believed that it exists in the breccia of some of the valleys on the west side of the lake, which is washed into the sea and submerged, till the small stones by which it is sunk are loosened and fall out, when the bitumen rises to the surface.
This is a wide sandy beach with a narrow backshore berm of coarser sediment supplied from local erosion of high sandstone and breccia cliffs.Advertisement
It is really a fault zone bounded by two major faults and filled with a well cemented fault breccia.
The passage containing the breccia floods and drains after severe storms in the area.
Much rarer are pebbles of porphyry of a type that can be matched in the Permian breccia of Dawlish.
It emerges between two cliffs of red breccia, a gravelly rock laid down by floods some 250 million years ago.
It is a coarse breccia, that is a stone in which are embedded angular stone fragments.Advertisement
Locally quarried breccia is the predominant material, once quarried from the breccia outcrop on Loton deer park.
If a different type of rock overlies a cavernous limestone, then clasts or boulders of both could become mixed in a cave breccia.
Surface water carrying dissolved calcium carbonate has cemented these angular fragments together in many places forming a breccia.
The sub-horizontal fissures in the breccia are infilled with laminated shale of identical lithology to the overlying basal bed of the Blue Lias Formation.
At El-Hammmat,on the old way from Coptos to Philoteras Portus, are the breccia verde quarries, worked from very early times, and having interesting hieroglyphic inscriptions.Advertisement
Breccia Oniciata, or Sahara Gold on the floor with a richly colored wall paper on the walls will set off the copper sink perfectly.
In this part of its course the rocky sides of the valley, which sometimes closely approach the river, are composed of marls and gypsum, with occasional selenite, overlaid with sandstone, with a topping of breccia or conglomerate, and rise at places to a height of 200 ft.
A deposit of sinter and a calcareous sandstone, known as the Kalahari Kalk, considered by Dr Passarge to be of Miocene age, overlies a sandstone and curious breccia (Botletle Schnichten).
There has been much contirversy concerning the nature and origin of the blue ground itself; and even granted that (as is generally believed) the blue ground is a much serpentinized volcanic breccia consisting originally of an olivine-bronzite-biotite rock (the so-called kimberlite), it contains so many rounded and angular fragments of various rocks and minerals that it is difficult to say which of them may have belonged to the original rock, and whether any were formed in situ, or were brought upfrom below as inclusions.
Among the Griquatown series of quartzites, limestones and shales are numerous bands of jasper and large quantities of crocidolite (a fibrous amphibole); while at Blink Klip a curious breccia, over 200 ft.Advertisement
All over Iceland, in both the basalt and breccia formations, there occur small intrusive beds and dikes of liparite, and as this rock is of a lighter colour than the basalt, it is visible from a distance.