摘要:

Beaufort Island, near the entrance to McMurdo Sound, is a remnant of a basaltic cone of about Last Interglacial age. More than three-quarters of it was quarried away by extensions of the Ross Ice Shelf or by glaciers during the Last Glaciation, leaving the remainder essential unmodified. Agglomerates, lavas, and tuffs of the cone rest unconformably on a pediment of horizontal tuffs and fine agglomerates, which show features that are either frozen-ground involutions or contortions caused by collapse of ice-tuff sandwiches. On the northern shore there is a c1iffed bench at a height of about 25 ft. Its age and origin are uncertain but it could be a c1iffed talus cone formed about 700 A.D., or a true marine bench formed about 5000 B.C. and since raised by post-glacial isostatic rebound of Antarctica.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423167

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

A marine fauna low in the Takitimu Group is discussed and considered to be probably Sakmarian (Lower Permian) from its affinities to the faunas from the lower Dalwood Group of the Hunter Valley in New South Wales, and correlative beds of Queensland. A pleurotomarid near the base of the group is close to or identical with a Queensland species from beds correlated with the Lochinvar or Allandale Formation of the Hunter Valley. Probably the Takitimu Group is Sakmarian and lower Artinskian

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423168

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

A reconnaissance survey in 1948 shows that on the South Island West Coast beaches between Karamea and Jacksons Bay there is available upwards' of 1,000 million tons of dredgable sand from which ilmenite and small amounts of minerals and gold could be recovered.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423169

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

A reconnaissance survey in 1949 indicates that on the beaches between the mouth of the Mokau River, 56 miles north of New Plymouth, and the township of Muriwai, 35 miles north-west of Auckland City, there is available over 600 million tons of magnetically recoverable ironsand assaying 58% Fe.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423170

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

The dove-grey volcanic argillite from, Red Rock Point is petrographically and chemically very similar to the red and green volcanic argillites, and differs only in the degree of oxidation of the iron oxide. These volcanic argillites are, considered to be mainly argillaceous in nature (at least 70 to 80%), with the admixture of volcanic material probably containing a high proportion of finely divided iron oxide.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423171

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

Sterrasters, the microsclere siliceous spicules of certain marine sponges, have been recognized in strata ranging Irom Upper Miocene to Pleistocene in age, including some beds of the Pleistocene Hawera Series previously considered to be non-marine. The stcrrasters are described and compared with those of modern and fossil sponges from the New Zealand region. The genusGeodiaLamarck is definitely represented by the sterrasters examined, but the presence of other genera of the family Geodiidae cannot be ruled out, Attention is drawn to the usefulness of sterrasters as indicators of marine deposition, and it is suggested that these structures may be widespread in the Upper Cretaceous and Cenozoic “covering strata” of New Zealand.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423172

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

The upper part of the Otapirian Stage and the Aratauran Stage are recognized in the sequence south of Nugget Point, and the position of the Triassic-Jurassic boundary fixed. The Otapirian Stage is 690 ft thick and Aratauran 1,880 ft.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423173

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

The following Foraminifera are of stratigraphic importance in New Zealand and especially in the Waipara district:Pseudoclavulina anglicaCushman (Teurian);Sigmoilopsis neocelatan.sp. (Duntroonian? Waitakian to Altonian);S. compressan.sp, (Awamoan and Altonian);Buliminella waiparaensisn.sp. (Haumurian and Teurian);Bolivina fyfein.sp, (Kapitean to Nukumaruan);Loxostomum pakaurangiensisn.sp. (Awarnoan to Waiauan):Notorotalia wilsonin.sp. (Altonian to Waiauan);Notorotalia aranean.sp. (Otaian? Hutchinsonian and Awamoan);Globigerina pseudoiotaHornibrook (Waipawan and Mangaorapan);G. gravelliBronniman (Waipawan ):G. soldadoensisBronniman (Waipawan);Globorotalia zealandican.sp. (Awamoan and Altonian);Cibicides thiaracutan sp. (Altonian to Tongaporutuan).

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423174

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

Twenty-seven occurrences of wave motion in the atmosphere over the hilly terrain of Banks Peninsula, South Island, New Zealand, have been analysed from the Christchurch radiosonde and radar wind records. The average maximum vertical velocity found was approximately 1,000 ft per min., but velocities up to 2,000 ft per min. were found to occur occasionally. The conditions in which these waves may exist and some of their characteristic properties are given.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423175

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor

摘要:

Dye patch movements and other indicators demonstrate a complex zoned tidal stream flow into Wellington Harbour. In the harbour, the flood stream makes clockwise and the ebb runs anti-clockwise at rates approximating a quarter-knot. The boundaries between zones moving with different horizontal velocities are marked by slicks.

ISSN:0028-8306    

DOI:10.1080/00288306.1958.10423176

出版商:Taylor & Francis Group    

年代:1958

数据来源: Taylor