摘要:

In March 1962, Brown Bros. (Hamilton) Ltd. drilled for water at the Northern Wairoa Dairy Factory (grid. ref. N23/385685), Mangawhare, one mile south of Dargaville (Fig. 6). The hole penetrated Bortonian rocks for the entire depth below 130 tt and being “dry” was abandoned at 1062 ft. The altitude of the ground surface at the site is 20 ft.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423617

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

A tilted outwash surface near the Moonlight gold sluicing claim, 1½ miles north-east of Blackball township (Fig. 7), is crossed by three prominent fault traces. The purpose of this note is to record the nature of this tilting and of the associated faults.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423618

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

The use of graded bedding to determine the direction of younging of beds is difficult where greywackes consist of massive sandstone beds with but thin argillite partings.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423619

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

Comparatively simple equipment was found suitable for use in a galactic survey at Coromandel, New Zealand. The area of sky chosen was from 10° to 50° South Declination and from XIV to XX hours Right Ascension, and the nominal frequency was 144 Mc/s.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423620

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

From examination of the glacial deposits and landforms of the Rakaia Valley, four major ice advances have been recognised. In chronological order, these are the Woodlands, Tui Creek, Bayfield, and Acheron Advances. The Bayfield Advance was double, and the Acheron triple. All are regarded as of late Pleistocene age, the Waimaunga Glaciation being represented by the Woodlands Advance, and the Otira Glaciation by the three later advances. Differences in the height of moraines and outwash surfaces allow the first three advances to be clearly differentiated; the Woodlands Advance is further distinguished by the degree of weathering of its deposits. The Acheron Advance occurred after the initiation of the present Rakaia Gorge, and outwash surfaces comparable to those of the earlier advances are lacking in the main valley, although present elsewhere. Morainic deposits of this advance show that two distinct glaciers derived from different sources were present in the area, one occupying the main Rakaia Valley and the other the Lake Coleridge trough. Meltwater drainage systems were well developed during the Otiran advances, large volumes of water finding an outlet into the Selwyn Valley. Lake deposits, abundant in the Rakaia Valley, are regarded as evidence of the former presence of several small ice-marginal lakes, rather than of one large body of water.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423621

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

Consideration of the stress ellipsoid shows that the Principal Horizontal Stress (PHS) direction may not be a determinable or particularly significant stress direction for some kinds of faults. Principal stress magnitudes, as well as principal stress directions, can play a role in fixing the orientation of PHS. The usefulness of a method for PHS location recently proposed by Lensen is questioned on this basis and also because considerable errors may arise from its application to faults for which the PHS direction is determinable. Fault dip and the angle between a fault and the greatest principal stress direction are considered important factors given insufficient attention in Lensen's analysis. An alternative method for location of stress directions is discussed briefly.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423622

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

Climatically controlled morphogenetic systems occur in zones. The circumpolar zones, characterised by permafrost, though now narrow extended in glacial ages into the middle latitudes. To valley excavation of a special kind controlled by active cryergic processes in these zones Biidel attributes most of the sculpture of extensive middlelatitude regions, the landforms of which he therefore regards as largely relict.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423623

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

Abundant and well preserved Foraminifera in turbidites of Upper Miocene (Kapitean) age, at Cleland Creek, were compared with Foraminifera in four different depth biofacies of about the same age. The turbidites were deposited in depths certainly greater than 2,000 ft, and probably between 4,000 and 6,000 ft, and were derived from all shallower depths up to about 400 ft or less. Fragile shells and large shells are less common in turbidites than in non-turbidites, and many shells are considered to have been destroyed during transport. The basal layer of each turbidite rhythm is considered to consist of “slumped” neritic sediment with little intermixed deep-water sediment, the intermediate layer to have been deposited by a swift turbidity current, and the upper layer to have been deposited from suspension after the turbidity current ceased flowing. No trace of autochthonous sediment was found between turbidite rhythms.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423624

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

From two samples, one from sandstone and one from mudstone, from a graded bed in Upper Miocene turbidites at Cleland Creek all the specimens of two species of Foraminifera were measured. Small specimens predominate in the mudstone and large specimens in the sandstone. The maximum size is about the same in both sandstone and mudstone, but the minimum size is much smaller in the mudstone. The size-frequency distributions appear to be nearly typical for sandstones and mudstones of turbidites.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423625

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor

摘要:

Over very large areas in Otago mesoscopic structures of different ages can be mapped in the schist. Folds produced since the onset of metamorphism appear to have resulted from at least three phases of deformation. The first phase probably gave rise to large recumbent folds. The second phase may have catalysed retrogressive metamorphism on a regional scale. The third phase was probably related to Tertiary faulting. The first two phases may have been separate orogenies or parts of a single complex orogeny.

ISSN:0028-8306    

DOI:10.1080/00288306.1963.10423626

出版商:Taylor & Francis Group    

年代:1963

数据来源: Taylor