An Exposed Cross-Section of Continental Crust, Doubtful Sound Fiordland, New Zealand; Geophysical & Geological Setting

1990 ◽  
pp. 43-69 ◽  
Author(s):  
G. J. H. Oliver
Keyword(s):  
New Zealand ◽  
Continental Crust ◽  
Cross Section ◽  
Geological Setting

Harvest rate of sooty shearwaters (Puffinus griseus) by Rakiura Māori: a potential tool to monitor population trends?

2004 ◽  
Vol 31 (3) ◽  
pp. 319 ◽  
Author(s):  
Jane Catherine Kitson
Keyword(s):  
New Zealand ◽  
Cross Section ◽  
Large Scale ◽  
Population Change ◽  
Population Trends ◽  
Harvest Rate ◽  
General Index ◽  
Careful Screening ◽  
Potential Tool

Sooty shearwaters (tītī, muttonbird, Puffinus griseus) are highly abundant migratory seabirds, which return to breeding colonies in New Zealand. The Rakiura Māori annual chick harvest on islands adjacent to Rakiura (Stewart Island), is one of the last large-scale customary uses of native wildlife in New Zealand. This study aimed to establish whether the rate at which muttonbirders can extract chicks from their breeding burrows indicates population trends of sooty shearwaters. Harvest rates increased slightly with increasing chick densities on Putauhinu Island. Birders' harvest rates vary in their sensitivities to changing chick density. Therefore a monitoring panel requires careful screening to ensure that harvest rates of the birders selected are sensitive to chick density, and represents a cross-section of different islands. Though harvest rates can provide only a general index of population change, it can provide an inexpensive and feasible way to measure population trends. Detecting trends is the first step to assessing the long-term sustainability of the harvest.

An inventory of unreinforced load-bearing stone masonry buildings in New Zealand

2014 ◽  
Vol 47 (2) ◽  
pp. 57-74 ◽  
Author(s):  
Marta Giaretton ◽  
Dmytro Dizhur ◽  
Francesca Da Porto ◽  
Jason M. Ingham
Keyword(s):  
New Zealand ◽  
Cross Section ◽  
Construction Materials ◽  
Masonry Wall ◽  
Stone Masonry ◽  
Building Stock ◽  
Building Inventory ◽  
Building Information ◽  
Canterbury Earthquake Sequence ◽  
Almost All

Almost all unreinforced stone masonry (URSM) buildings in New Zealand were constructed between 1860 and 1910, typically in regions where natural stone was sourced from local quarries, fields and rivers. These buildings form an important part of the country’s architectural heritage, but the performance of URSM buildings during earthquake induced shaking can differ widely due to many aspects related to the constituent construction materials and type of masonry wall cross-section morphology. Consequently, as a step towards gaining greater knowledge of the New Zealand URSM building stock and its features, an exercise was undertaken to identify and document the country-wide URSM building inventory. The compiled building inventory database includes: (i) general building information, such as address, building owner/tenant and building use; (ii) architectural configuration, such as approximate floor area, number of storeys, connection with other buildings, plan and elevation regularity; and (iii) masonry type, such as stone and mortar types, wall texture and wall cross-section morphology. From this exercise it is estimated that there is in excess of 668 URSM buildings currently in existence throughout New Zealand. A large number of these vintage URSM buildings require detailed seismic assessment and the implementation of seismic strengthening interventions in order to conserve and enhance this component of New Zealand’s cultural and national identity. The entire stock of identified buildings is reported in the appended annex (688 total), including 20 URSM buildings that were demolished following the Canterbury earthquake sequence.

Restoration of the Caledonian Baltoscandian margin from balanced cross-sections: the problem of excess continental crust

1987 ◽  
Vol 78 (3) ◽  
pp. 197-217 ◽  
Author(s):  
R. A. Gayer ◽  
A. H. N. Rice ◽  
D. Roberts ◽  
C. Townsend ◽  
A. Welbon
Keyword(s):  
Continental Crust ◽  
Cross Section ◽  
Continental Margin ◽  
Cross Sections ◽  
Branch Line ◽  
Norwegian Coast ◽  
Thrust Sheets ◽  
Thrust System ◽  
Basement Ridge ◽  
The Baltic

ABSTRACTConsideration of six balanced cross-sections through parts of the Finnmark Caledonides, N Norway indicates that shortening varies between 25% and 75%. A restored long cross-section across the width of the orogen, constructed with the aid of a branch line map, demonstrates a foreland propagating thrust system, with earlier formed more internal metamorphic nappes thrust SE 330 km under ductile conditions and then carried piggyback ESE a further 296 km on later brittle thrust sheets. Total shortening is 78·7% with a translation of the most internal thrust sheet of 626 km.The restored section suggests that: (1) the rate of propagation of deformation from hinterland to foreland is c. 2·27 cm y−1; (2) incorporation of basement into the nappes resulted from inversion of extensional faults formed during Iapetus rifting; (3) during rifting a Finnmark basement ridge separated a 220 km wide southeasterly Gaissa basin from the passive Iapetus continental margin which was at least 423 km wide; (4) the Finnmark Caledonides resulted from a continent-microcontinent collision which obducted continental crust at least 600 km across the Baltic margin; and (5) the Caledonian Baltoscandian margin prior to Iapetus suturing extended at least 400 km W of the Norwegian coast. On a Bullard reconstruction this overlaps with Laurentian rocks in Greenland. The excess continental crust is accounted for by shortening of the Baltoscandian margin during collision.

scholarly journals Practising Pacific pedagogies during New Zealand's level four lockdown: Pacific early career academics and COVID-19

2021 ◽  
Vol 26 ◽  
pp. 149-161
Author(s):  
Patrick Saulmatino Thomsen ◽  
Litia Tuiburelevu ◽  
Moeata Keil ◽  
Marcia Leenen-Young ◽  
Sisikula Palu Sisifa ◽  
...  
Keyword(s):  
New Zealand ◽  
Cross Section ◽  
Careful Consideration ◽  
Early Career ◽  
Delivery Methods ◽  
Online Delivery ◽  
Equity Issues ◽  
Wide Range ◽  
Innovative Solutions

During New Zealand’s unprecedented level-four lockdown, opportunities to practise Pacific pedagogies in New Zealand universities required creative and innovative solutions from Pacific academics. This paper brings together the experiences of teaching during this lockdown from a cross-section of Pacific Early Career Academics (PECA) across a wide range of disciplines and schools at New Zealand’s largest university. This paper argues that despite the challenges, PECA found ways to adapt Pacific pedagogical concepts through online delivery methods; however, their ability to effectively do this was severely influenced by existing socio-economic inequities that disproportionately impacted Pacific students. PECA continued to nurture the vā/wā with students in innovative ways, but they still encountered major challenges that will require more careful consideration of equity issues by New Zealand universities moving forward.

INITIATION AND GROWTH OF STEEP TRANSPRESSIONAL SHEAR ZONES THROUGH A 65 KM THICK SECTION OF CONTINENTAL CRUST IN SW NEW ZEALAND

2019 ◽  
Author(s):  
Keith A. Klepeis ◽  
◽  
Joshua J. Schwartz ◽  
Elena A. Miranda ◽  
Laura E. Webb ◽  
...  
Keyword(s):  
New Zealand ◽  
Continental Crust ◽  
Shear Zones ◽  
Thick Section

Geological setting of the 1987 Edgecumbe earthquake, New Zealand

1989 ◽  
Vol 32 (1) ◽  
pp. 1-13 ◽  
Author(s):  
I. A. Nairn ◽  
Sarah Beanland
Keyword(s):  
New Zealand ◽  
Geological Setting
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