scholarly journals The Geology of Eketahuna (N.Z.M.S.1. N.153)

2021 ◽  
Author(s):  
◽  
Gerrit Neef

<p>An interesting rhythmic sequence consisting of massive mudstone and groups of graded beds each about 10 ft thick is exposed near Alfredton, in the southern part of the North Island. During Opoitian time, rotation along a north-east-trending hinge line west of Alfredton caused one side of a fault block to be relatively uplifted and the other depressed, at intervals of several tens of thousands of years, while sedimentation from south-west-flowing turbidity currents was in progress. The sandy fraction of post-faulting turbidity currents were channelled along the depressed side just to the east of the submarine fault scarp, while on the middle and upper slopes of the tilted block mud was deposited from the turbidity-current clouds. As sedimentation proceeded, graded beds on-lapped eastwards up the slope of the tilted block and across the area where muds had been deposited. Later tilting of the block initiated a new rhythm.</p>

2021 ◽  
Author(s):  
◽  
Gerrit Neef

<p>An interesting rhythmic sequence consisting of massive mudstone and groups of graded beds each about 10 ft thick is exposed near Alfredton, in the southern part of the North Island. During Opoitian time, rotation along a north-east-trending hinge line west of Alfredton caused one side of a fault block to be relatively uplifted and the other depressed, at intervals of several tens of thousands of years, while sedimentation from south-west-flowing turbidity currents was in progress. The sandy fraction of post-faulting turbidity currents were channelled along the depressed side just to the east of the submarine fault scarp, while on the middle and upper slopes of the tilted block mud was deposited from the turbidity-current clouds. As sedimentation proceeded, graded beds on-lapped eastwards up the slope of the tilted block and across the area where muds had been deposited. Later tilting of the block initiated a new rhythm.</p>


1853 ◽  
Vol 20 (2) ◽  
pp. 211-217
Author(s):  
James D. Forbes

The following remarks, being the result of a careful examination of a small district of country characteristic of the relations of the trap formations, are perhaps worthy of being recorded; although the general features of the county of Roxburgh have been very clearly stated in a paper by Mr Milne, published in the 15th volume of the Edinburgh Transactions.The outburst of porphyritic trap forming the conspicuous small group of the Eildon Hills, may be stated to be surrounded by the characteristic greywacke of the south of Scotland. It forms an elongated patch on the map, extending from the west end of Bowden Muir in the direction of the town of Selkirk, and running from west-south-west to east-north-east (true) towards Bemerside Hill, on the north bank of the Tweed. The breadth is variable, probably less than is generally supposed; but it cannot be accurately ascertained, owing to the accumulated diluvium which covers the whole south-eastern slope of this elevated ridge. On this account, my observations on the contact of rocks have been almost entirely confined to the northern and western boundaries of the trap, although the other side was examined with equal care.


1898 ◽  
Vol 4 ◽  
pp. 95-100
Author(s):  
Duncan Mackenzie

From the modern town of Kos, on the site of the ancient capital at the north-east extremity of the island, to the village of Kephalos at the southwest end is a ride of eight hours.The village stands on a chalky plateau which beyond the isthmus marks the beginning of the mountain district of south-west Kos. This in turn is a repetition on a smaller scale of the mountain region, at the other end of the island, which forms the lofty termination to the long central tableland. The highest points of the mountain district are towards the south-east where the fall to the sea is very rapid. The highest neighbouring peak, Mount Ziní, is about an hour distant from the village in a south-easterly direction, while all that lies to the north-west of the main range is high pastoral country with many torrent beds.


1911 ◽  
Vol 8 (8) ◽  
pp. 345-352
Author(s):  
William C. Simmons

The mining village of Foxdale, situate a little towards the southern end of the north-east to south-west central trend-line of the Isle of Man, lies just north of the barren heath-covered hill called “Stoney Mountain”. On the 6 inch Ordnance Survey Map the northern part of this hill is called Granite Mountain and the southern portion Windy Common. The whole forms a long, regularly sloped hill with its greatest length—about 2 miles—approximately north and south. Though of small altitude its singular barrenness makes it conspicuous in a moderately well-cultivated district. To the west South Barrule and the Barrule Slate Quarries rise considerably above it, though on the other sides the ground slopes gently off to more distant hills.


The Geologist ◽  
1859 ◽  
Vol 2 (6) ◽  
pp. 257-260
Author(s):  
T. L. Phipson

Much attention has been excited in France for some few months past by the fall of a large aërolite, which took place in the canton of Montrejeau on the 9th of December last. We have now all the details that we are ever likely to have concerning this remarkable meteor. It fell about seven o'clock in the morning, appearing first in the north-east like a large red-hot bomb, which passed rapidly to the south-west, where it remained stationary for an instant. It then emitted a considerable column of smoke and flame; three seconds after which a loud detonation was heard, followed by a rumbling noise. Although in broad daylight, the little town of Aurignac was completely illuminated by the passage of this aërolite. After the explosion nothing was observed in the sky but a streak of vapour and a small cloud which marked out the direction followed by the meteoric stone, and the place where it exploded. Shortly after this phenomenon two large fragments of the aërolite were picked up in the parishes of Aussan and Clarac; one of these weighed about 90 lbs., and had sunk into the ground for nearly two yards; the other, that fell at Clarac, broke through the roof of a cottage; it weighed from 16 to 20 lbs., and was so hot when first seen that it could not be touched for some time. These blocks present rounded forms, their surface is black and smooth, the interior is formed of a sort of grey substance, not unlike certain volcanic products in structure.


1924 ◽  
Vol 4 (1) ◽  
pp. 92-95
Author(s):  
W. G. Clarke

In an arid district like Breckland, the vicinity of the meres, which provided a water-supply, fish, fowl and molluscs, remote from river-valleys, was eminently suitable for settlements of prehistoric man. Pile-dwellings have been found in two of the Wretham Park meres, and there are evidences of settlements on a small plateau on the east shore of Fowlmere, a similar plateau on the north-east bank of Langmere, and the north and south shores of Ringmere. The bed of Langmere confirms the evidence of an important settlement. The southern portion contains quantities of pot-boilers and a bank projecting into the mere from the south-west corner of the island seems to be chiefly made of pot-boilers. Many flakes, of types and patinas similar to those recorded hereafter, are also found in the bed of Langmere, and on its shores. Flakes and pot-boilers have also been found near most of the other meres, and Dr. Marr has described (Proc. Vol. I., p. 374) “A Late Palæolithic Site on Wretham Heath,” east of Langmere.


1946 ◽  
Vol 66 ◽  
pp. 48-56 ◽  
Author(s):  
A. H. S. Megaw

Sir George Hill, in his History of Cyprus, refers to a group of early churches in the Island in the following passage: ‘It seems improbable that any important buildings can have been put up during the periods of the Arab raids, that is, from the middle of the eighth century to 965. Churches, for instance, like those at Aphendrika, which have been attributed on the one hand to the sixth or seventh century, on the other to the “Romanesque,” would not have been built at a time when the population of places like Ayios Philon and Lambousa was moving inland to escape the raiders. Whether the earlier or the later date is to be preferred must be left to the specialists.' In a footnote, he recorded my own opinion that the vaulted basilicas of the Aphendrika type should be dated after the Byzantine reconquest. The purpose of this article is to present some evidence in support of that opinion. It concerns three ruined churches, all in the village lands of Rizokarpaso: the Panayia and Asomatos churches at Aphendrika, the site, which Hogarth identified as Urania, near the north coast 5 miles north-east of the village, and the Panayia at Sykha, some 6 miles south-west of the village, on the south side of the Karpas peninsula.


1932 ◽  
Vol 69 (5) ◽  
pp. 209-233 ◽  
Author(s):  
G. D. Osborne

THE Carlingford-Barnave district falls within the boundaries of Sheet 71 of the Ordnance Survey of Ireland, and forms part of a broad promontory lying between Carlingford Lough on the north-east and Dundalk Bay on the south-west. The greater part of this promontory is made up of an igneous complex of Tertiary age which has invaded the Silurian slates and quartzites and the Carboniferous Limestone Series. This complex has not yet been investigated in detail, but for the purposes of the present paper certain references to it are necessary, and these are made below. The prevalence of hybrid-relations and contamination-effects between the basic and acid igneous rocks of the region is a very marked feature, and because of this it has been difficult at times to decide which types have been responsible for the various stages of the metamorphism.


1954 ◽  
Vol 49 ◽  
pp. 267-291
Author(s):  
Elizabeth B. Wace

The Cyclopean Terrace Building lies to the north-west of the Lion Gate on the northern end of the Panagia Ridge and faces almost due west across the valley of the Kephissos and modern main road from Corinth to Argos. It lies just below the 200 m. contour line, and one terrace below the houses excavated in 1950–51 by Dr. Papadimitriou and Mr. Petsas to the east at the same end of the ridge. The area contains a complex of buildings, both successive and contemporary, and in view of the discovery of structures both to the south-west and, by the Greek Archaeological Service, to the north-east it is likely that this whole slope was covered by a portion of the outer town of Mycenae. This report will deal only with the structure to which the name Cyclopean Terrace Building was originally given, the so-called ‘North Megaron’, supported by the heavy main terrace wall.The excavation of this structure was begun in 1923. The main terrace wall was cleared and two L.H. IIIC burials discovered in the top of the fill in the south room. In 1950 it was decided to attempt to clear this building entirely in an endeavour to find out its date and purpose. The clearing was not, however, substantially completed until the close of the 1953 excavation season, and this report presents the available evidence for the date as determined by the pottery found beneath the building; the purpose is still a matter for study, though various tentative conclusions can be put forward.


2018 ◽  
Vol 40 (1) ◽  
pp. 83-99
Author(s):  
Lindsay Dunbar ◽  
Mike Roy

The islands of Orkney have long been associated with examples of Viking-age activity and often yield unique and well preserved records from the Viking and Late Norse periods. Investigations on the island of Sanday in Orkney, as part of a call off contract for human remains between Historic Environment Scotland and AOC Archaeology Group, have revealed the presence of an inhumation in association with an iron knife. Further investigation reveals that the burial is that of an adolescent skeleton (12–17 years). The north-east/south-west alignment of the body, in a flexed position, and its association with an iron knife indicates a pre-Christian burial rite, in line with a 9th or 10th century AD date, which corresponds with radiocarbon dating carried out on the skeletal remains. This burial contributes a new record to the wealth of evidence from around this period within the surrounding landscape on the island of Sanday.


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