Atlantis Online
April 19, 2024, 05:31:01 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Ice Age blast 'ravaged America'
http://news.bbc.co.uk/2/hi/science/nature/6676461.stm
 
  Home Help Arcade Gallery Links Staff List Calendar Login Register  

Stonehenge and Other British Stone Monuments Astronomically Considered

Pages: 1 2 3 [4] 5 6   Go Down
  Print  
Author Topic: Stonehenge and Other British Stone Monuments Astronomically Considered  (Read 3083 times)
0 Members and 98 Guests are viewing this topic.
Ericka Bowman
Hero Member
*****
Posts: 127



« Reply #45 on: January 12, 2009, 01:01:39 am »

p. 78

use when the stones were set up, it is in the highest degree probable that some implement of that metal would have been lost within the area of the excavations, and if so lost, it would certainly have been found together with the stone tools. Further, the employment of deer's horn picks for the extensive excavations made in the chalk around the base of the monoliths also tends to support the view that bronze implements cannot have been in common use. If they had it would seem not unreasonable to assume that they would have been employed, as they would have been so much more effective for such work than the picks of deer's horn.

"Again, the chippings of the stones of Stonehenge in two of the Bronze age barrows 1 in its neighbourhood show that it is of earlier date than they."

And finally:—

"In my opinion, the date when copper or bronze was first known in Britain is a very remote one, as no country in the world presented greater facilities for their discovery. The beginning of their application to practical uses should, I think, be placed at least as far back as 1800 B.C., and that date I am inclined to give, until further evidence is forthcoming, as the approximate date of the **** of Stonehenge."

Now the date arrived at by Mr. Penrose and myself on astronomical grounds was about 1700 B.C. It is not a little remarkable that independent astronomical and archæological inquiries conducted in the same year


p. 79

should have come so nearly to the same conclusion. If a general agreement be arrived at regarding it, we have a firm basis for the study of other similar ancient monuments in this country.

I have previously in this book referred to the fact that the trilithons of the naos and the stones of the outer circle are all built up of so-called "sarsen" stones. To describe their geological character, I cannot do better than quote, from Mr. Cunnington's "Geology of Stonehenge," 1 their origin according to Prestwich.

“Among the Lower Tertiaries (the Eocene of Sir Charles Lyell) are certain sands and mottled clays, named by Mr. Prestwich the Woolwich and Reading beds, from their being largely developed at these places, and from these he proves the sarsens to have been derived; although they are seldom found in situ, owing to the destruction of the stratum to which they belonged. They are large masses of sand concreted together by a siliceous cement, and when the looser portions of the stratum were washed away, the blocks of sandy rocks were left scattered over the surface of the ground.

“At Standen, near Hungerford, large masses of sarsen are found, consisting almost entirely of flints, formed into conglomerate with the sand. Flints are also common in some of the large stones forming the ancient temple of Avebury.

"The abundance of these remains, especially in some of the valleys of North Wilts, is very remarkable. Few persons who have not seen them can form an adequate


p. 80

idea of the extraordinary scene presented to the eye of the spectator, who standing on the brow of one of the hills near Clatford, sees stretching for miles before him, countless numbers of these enormous stones, occupying the middle of the valley, and winding like a mighty stream towards the south."

These stones, then, may be regarded as closely associated with the local geology.

The exact nature of the stones, called "blue stones," can best be gathered from a valuable "Note" by Prof. Judd which accompanies Prof. Gowland's paper. These blue stones are entirely unconnected with the local geology; they must, therefore, represent boulders of the Glacial drift, or they must have been brought by man, from distant localities. Prof. Judd inclines to the first opinion.

The distinction between these two kinds of stone are well shown by Prof. Gowland:—

“The large monoliths of the outer circle, and the trilithons of the horse-shoe are all sarsens. [See general plan, Fig. 15.] These sarsens in their composition are sandstones, consisting of quartz-sand, either fine or coarse, occasionally mixed with pebbles and angular bits of flint, all more or less firmly cemented together with silica. They are the relics of the concretionary masses which had become consolidated in the sandstone beds that once overlaid the chalk of the district, and had resisted the destructive agencies by which the softer parts of the beds were removed in geological times. They range in structure from a granular rock resembling loaf sugar in internal appearance to one of

p. 81

great compactness similar to and sometimes passing into quartzite.

“The monoliths and trilithons all consist of the granular rock. The examples of the compact quartzite variety, of which many were found in the excavations, were almost without exception either hammerstones that glad been used in shaping: and dressing the monoliths, or fragments which had been broken from off them in these operations.

“The small monoliths, the so-called 'blue stones,' which form the inner circle and the inner horse-shoe, are, with the undermentioned exceptions, all of diabase more or less porphyritic. Two are porphyrite (formerly known as felstone or hornstone). Two are argillaceous sandstone.

“Mr. William Cunnington, in his valuable paper, 'Stonehenge Notes,' records the discovery of two stumps of 'blue stones' now covered by the turf. One of these lies in the inner horseshoe between Nos. 61 and 62, and 9 feet distant from the latter. It is diabase. The other is in the inner circle between Nos. 32 and 33, 10 feet from the former, and consists of a soft calcareous altered tuff, afterwards designated for the sake of brevity fissile rock.

"The altar stone is of micaceous sandstone."

I now come to the second point, to which I shall return in the next chapter.

In studying the material obtained from the excavations, it was found in almost every case that the number of chippings and fragments of blue stone largely exceeded that of the sarsens; more than this, diabase

p. 82

[paragraph continues] (blue stone) and sarsen were found together in the layer overlying the solid chalk (p. 15). Chippings of diabase were the most abundant, but there were few large pieces of it. Sarsen, on the other hand, occurred most abundantly in lumps (p. 20); very few small chips of

Report Spam   Logged
Pages: 1 2 3 [4] 5 6   Go Up
  Print  
 
Jump to:  

Powered by EzPortal
Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum
Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy