摘要:

The tectonic history of Kew Zealand falls into two periods of major activity, a late Mesozoic-early Tertiary phase, and a late Tertiary-Quaternary phase. The first phase is here termed the Rangitata Orogeny and the last phase the Kllikouni Diastrophism. The Rangitata Orogeny started in the southern part of the South Island probably early in the Jurassic and progressed northward bringing more and more of the New Zealand Geanticlinc above sea-level. The nose of the geanticline reached the North Island area late in the Cretaceous and the geanticline was above sea-level for the whole of the New Zealand area early in the Tertiary. There is evidence that the New Zealand Geanticline rose above sea-level earlier in the northern part of the North Island of New Zealand, but this is at present interpreted as a local undulation in the geanticlinal body. On the eastern and western sides of the geanticlinc, secondary, sedimentary basins-the Eastern Basin and the Western Bacsin-developed, in which most. of the Cretaceo-Tertiary sedimentation in New Zealand took place.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431311

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

Methods of making rubber casts from natural moulds, and plaster replicas of fossils using plastic moulding compounds are described.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431312

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

Some observations on the apparent phase velocity of the frequency components in a wave system1, are described in Part 1. These show that; the velocity between two points arranged in the wind direction is higher than that for classical small amplitude waves. Part 2 is a theoretical investigation of the effects of various features occurring in real wave-systems upon the apparent phase velocity of wave components.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431313

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

A table has been prepared of synoptic situations associated with rainfalls of 0-25 inches or more at any one of seven selected stations throughout Central Otago. These situation types are discussed with the aid of rainfall charts prepared from observations at approximately 170 rainfall stations in Otago and Southland.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431314

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

The peninsula of North Shore is a spur of Tertiary sedimentary rocks (Waite-mata Formation) that has been subject to considerable marine erosion along1 its northern side. Deep excavation by an ancient Shoal Bay Stream, and its tributaries during glacial times divided the spur into blocks which became isolated by subsequent rise of sea-level. Two groups of volcanoes were active in Recent times and further modified the peninsula.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431315

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

A preferred level of marine erosion at a depth of 50 fathoms truncates banks around Franklin Island and forms a shelf similar in form to the continental shelves of temperate regions.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431316

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

Large glaciers derived from the ice plateau cut through the mountain ranges of South Victoria Land to the Ross Sea. In the McMurdo Sound region some glaciers have retreated from portions of their courses leaving almost ice free “dry valleys”.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431317

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

Axinite, associated with clinozoisite, occurs in quartz veins cutting sheared greywackes of the Chlorite 2 subzone in the upper valley of the Perth River. This is the first record of axinite in New Zealand.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431318

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

On the basis of chemical composition, the waters of hot springs of the Waio-tapu thermal area have been divided into four classes: acid sulphate waters, sulphate-chloride waters, chloride waters, and bicarbonate-chloride waters. The origin of the waters and the relationship of the hot springs to geological features is discussed. The natural heat flow of the Waiotapu thermal area has been estimated as 302,000 Kcal/sec above 15°C.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431319

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor

摘要:

Radioactivity measurements were made on Ngauruhoe lavas of various age, and also on xenoliths found in the Ngauruhoe flow of September 19S4. The variation in a count rates of the Ngauruhoe lavas erupted in 1954 is due to the presence of a varying amount of small feldspathic xenoliths or their absence. The radioactivity is roughly proportional to the potash content.

ISSN:0028-8306    

DOI:10.1080/00288306.1959.10431320

出版商:Taylor & Francis Group    

年代:1959

数据来源: Taylor