scholarly journals VI.—Notes on the Graptolite-bearing Rocks of New Zealand

1909 ◽  
Vol 6 (2) ◽  
pp. 74-75
Author(s):  
E. Douglass Isaacson

The series of beds containing graptolites in New Zealand occur in the Whakamarama district, which is situated in almost the extreme north-west of the South Island. They consist of intercalated bands of quartzite and carbonaceous argillites, with a north and south strike and dipping at a low angle to the west. As a result of the natural erosion of the land surface taking place more rapidly in the slaty layers than in the harder quartzites, the ridges and stream valleys exhibit a noticeable parallelism, those streams which enter the sea on the western coast usually taking a very sharp bend to the west, and with a somewhat gorgy channel to the sea. The valleys are for the most part densely clothed with forest trees, while the ridges of quartzite are barren, with the exception of a stunted growth of manuka (Leptospermum scoparium and L. ericoides), and in places a covering of peat to a depth of a few inches.

1942 ◽  
Vol 79 (3) ◽  
pp. 188-196 ◽  
Author(s):  
O. T. Jones

Edale lies in the valley of the River Noe about 3 miles north-west of Castleton. Near Edale End, about 2½ miles below the village, the Noe turns from a nearly east and west course to a nearly north and south course past Hope to join the River Derwent. In the neighbourhood of Edale the floor and lower flanks of the valley are formed of black shales known as the Edale Shales; they are overlain in succession by the Mam Tor Sandstones, the Shale Grit, the Grindslow Shales, and the coarse Kinder Scout Grits which form the great plateau of the Peak and the precipitous edge of Kinder Scout. North of the Edale valley the Mam Tor Sandstones reappear below the Shale Grit in Ashop Dale and Alport Dale. They occur also to the west of the valley in two narrow inliers just north of the railway in Roych Clough and Moor Clough.


2011 ◽  
Vol 4 (2) ◽  
pp. 260-263 ◽  
Author(s):  
Roger D. Cousens ◽  
Jane M. Cousens

AbstractOn the west coast of North America and in Australia, there have been parallel cases of sequential invasion and replacement of the shoreline plant American sea-rocket by European sea-rocket. A similar pattern has also occurred in New Zealand. For 30 to 40 yr, from its first recording in 1921, American sea-rocket spread throughout the eastern coastlines of the North and South Islands of New Zealand. European sea-rocket has so far been collected only on the North Island. From its first collection in 1937, European sea-rocket spread to the northern extremity of the island by 1973, and by 2010, it had reached the southernmost limit. In the region where both species have occurred in the past, American sea-rocket is now rarely found. This appears to be another example of congeneric species displacement.


2015 ◽  
Vol 14 (2) ◽  
pp. 132-141 ◽  
Author(s):  
Azimeh Karimi ◽  
Hojjatollah Saeidi

Sorghum halepensegrows in a vast range of ecological regions of Iran. In this study, inter-retrotransposon amplified polymorphism (IRAP) markers were used to assess the genetic diversity of 38 accessions ofS. halepenseand two accessions ofSorghum bicolor(used as out groups) collected from different regions of Iran. In total, 180 DNA fragments were amplified from eight combinations of IRAP primers, from which 178 (98.9%) were polymorphic. The IRAP-based trees and two-dimensional plot of principal coordinate analysis demonstrated six different groups corresponding to their geographical origin in Iranian germplasm ofS. halepense: (1) in the south-west region; (2) in the west along the Zagros Mountains; (3) in the north-west of the country; (4) in the centre of the country; (5) and (6) in the northern region along the eastern and western coast of Caspian Sea. The most variable populations were found in the centre and the west of Iran. The results showed high gene flow among different regions, although the south-western accessions were well differentiated from those growing in other regions. The accessions collected from western coast of Caspian Sea were differentiated from neighbouring regions in both morphological characters and IRAP data. The measured genetic distances were independent of geographical distances. This survey demonstrates high genetic dynamism in Iranian germplasm ofS. halepenseand indicates that the present germplasm is of great value in terms of sampling for new alleles for crop improvement.


1904 ◽  
Vol 1 (10) ◽  
pp. 490-493
Author(s):  
G. C. Crick

The valley of the Tochi River is an outlying corner of the British Empire in India forming a portion of Waziristan, the boundary of which was delineated in 1894–5 by an Anglo-Afghan Commission from the Afghan provinces of Khost on the north and Birmul on the west. Mr. F. H. Smith, of the Geological Survey of India, accompanied this Commission as geologist, and his observations “On the Geology of the Tochi Valley” were published in 1895 in the “Records of the Geological Survey of India” (vol. xxxviii, pt. 3, pp. 106–110, pl. iii). On p. 109 he says:—“The range of hills between Idak and Mirán Shah is formed by an anticlinal ridge which approximately strikes north and south, and which is composed of these lower eocene beds. In the core of the anticlinal a considerable thickness of massive dark grey limestone is exposed, in which I could find no fossil remains; the age of this limestone is therefore doubtful, and there is no evidence of any kind to show whether it belongs to the lowest tertiary or upper mesozoic age.”


1879 ◽  
Vol 6 (10) ◽  
pp. 444-458
Author(s):  
Norman Taylor ◽  
R. Etheridge

The next appearance of the older lead is at the “Rocky-ridge,” where the river, after running northerly for three-quarters of a mile, along the strike of the metamorphic beds, turns abruptly to the west. This ridge is a basalt-capped hill on the north side of the river, running in a north-west direction; it is about a mile long, with a bold rocky escarpment on its west side, facing the Sandy or Cudgebeyong Creek. Some tunnels have been driven in, and shafts sunk on this hill, and tolerably rich deposits of gold were found, but never followed out.Only in the southern half of the hill have diamonds been found(all more or less spotted).The drift is remark-able for the number and size of the agates it contains.The northern half of “the ridge” is underlaid by another outlier of the before-mentioned doubtful purple conglomerate, into which some tunnels have been driven in the western escarpment.The basalt is merely a fringe here, resting against the flank of the conglomerate, in which a small quantity of nuggetty gold was obtained;and form one to two inches thickness of lignite, or carbonaceous clay, is seen between it and the bottom of the basalt. Tte basali is intersected by numerous veins of a mineral allied to kaolin. The purple con-glomerate is similar in character to that near “the flat”and contains, on some of the joint faces, smll spherical crystalline aggreations of chalybite(carbonate of iron).At the extreme north ead of “the ridge”are great quantities of ironstone and conglomerate, but, from their Carbpniferous series, which is largely developed further north.The first diamonds which found their way to Melbourne were obtained.


1986 ◽  
Vol 7 (2) ◽  
pp. 55-75
Author(s):  
Timbul Haryono

The islands of Polynesia make up the largest group among the islands in the Pacific ocean. This group, in fact, consist of many islands forming a triangle. The main groups in the west are the Tongan, and Samoan and Ellice groups. The Cook, Society and Tuamotus lie in the east, with Easter Island as a far-off isolate, while the Hawaiian Islands and New Zealand are separated to the north and south respectively of the main west-east belt. The location of these islands between Asia in the west, Australia in the south and South America continent in the east is of considerable significance to the peopling and cultural development of the region. Many scholars have therefore been led to postulate the route of human movement into these scattered islands. Archaeological and anthropological researches have been carried out within the area to determine where the Polynesians originally come from. Various hypotheses have been proposed thereafter.


1935 ◽  
Vol 1 ◽  
pp. 16-38 ◽  
Author(s):  
G. A. Holleyman ◽  
E. Cecil Curwen

Plumpton plain is situated on the top of the South Downs, roughly 600 feet above sea level, six miles north-east of Brighton and four miles north-west of Lewes (fig. 1). From its western end a broad spur slopes gently southwards from the northern escarpment of the Downs, lying between Moustone Valley on the south-east and Faulkners Bottom on the west. Most of this Downland is covered with a dense scrub of gorse, thorn and bramble, and with large patches of bracken and heather. A series of broad paths running roughly at right angles with one another has been cut through this vegetation to facilitate the preservation of game. Along the main ridge of the spur running north and south is a broad gallop which, at a height of 600 feet O.D., passes through a group of earthworks situated 1500 feet from the north edge of the Downs and 2300 feet east of Streathill Farm. This group was the primary object of bur investigations and will be referred to as Site A (fig. 2).Site B (fig. 3) lies a quarter of a mile to the south-east of Site A on a small lateral spur jutting between the twin heads of Moustone Bottom. The only visible evidence of prehistoric occupation was a quantity of coarse gritty sherds and calcined flints on the surface to the south-east of a low bank and ditch which runs across the spur.Several groups of lynchets enclosing square Celtic fields are to be seen in the neighbourhood of these two sites. They lie principally to the south-east of Site A and to the south of Site B.


2000 ◽  
Vol 10 (4) ◽  
pp. 319-330 ◽  
Author(s):  
Ding Chang-qing ◽  
Zheng Guang-mei

China is a large country, occupying 9,600,000 km2. It lies between longitudes 73°40′E and 135° 05′E, a distance of some 5,200 km. Mountainous in the west and flat in the east, the land surface of China slopes downward from west to east in a three-step staircase and can be divided into moist, semi-moist, semi-arid and arid regions from the east coast to the inland north-west respectively. From north to south, China covers frigid, temperate, subtropical and tropical zones. All of this variation in geographical and climate conditions combine to give it a high diversity of fauna and flora.The country is rich in Galliformes. Sixty-one species of two families (Tetraonidae and Phasianidae) are found in the country (Cheng 1994), which is about 22% of the 277 Galliformes species of the world (Sibley and Monroe 1990). In recent decades, as a result of big changes in the environments and the increasing human activities, the ranges of Chinese Galliformes have decreased and the population densities have declined (Zheng and Zhang 1993). The status of the country's Galliformes was assessed in the mid 1990s as part of two global reviews: through the compilation of IUCN/World Pheasant Association (WPA) action plans for pheasants (McGowan and Garson 1995) and partridges (McGowan et al., 1995), and through the revision of BirdLife International's list of threatened bird species (Collar et al. 1994). Both assessments considered that a high proportion of the world's threatened Galliformes occurred in China.


2018 ◽  
Vol 45 (1) ◽  
pp. 21-39 ◽  
Author(s):  
James W. Wiley

Gerald Handerson Thayer (1883–1939) was an artist, writer and naturalist who worked in North and South America, Europe and the West Indies. In the Lesser Antilles, Thayer made substantial contributions to the knowledge and conservation of birds in St Vincent and the Grenadines. Thayer observed and collected birds throughout much of St Vincent and on many of the Grenadines from January 1924 through to December 1925. Although he produced a preliminary manuscript containing interesting distributional notes and which is an early record of the region's ornithology, Thayer never published the results of his work in the islands. Some 413 bird and bird egg specimens have survived from his work in St Vincent and the Grenadines and are now housed in the American Museum of Natural History (New York City) and the Museum of Comparative Zoology (Cambridge, Massachusetts). Four hundred and fifty eight specimens of birds and eggs collected by Gerald and his father, Abbott, from other countries are held in museums in the United States.


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