The hydrothermal vent system of Mount Ruapehu, New Zealand — a high frequency MT survey of the summit plateau

2008 ◽  
Vol 176 (4) ◽  
pp. 591-600 ◽  
Author(s):  
K.A. Jones ◽  
M.R. Ingham ◽  
H.M. Bibby
Keyword(s):  
New Zealand ◽  
Hydrothermal Vent ◽  
High Frequency ◽  
Mount Ruapehu

The New Zealand lichen Pannaria leproloma (Nyl.) P. M. Jørg. and its panaustral relative P. farinosa nom. nov.

2007 ◽  
Vol 39 (4) ◽  
pp. 349-359 ◽  
Author(s):  
Arve ELVEBAKK ◽  
Janne FRITT-RASMUSSEN ◽  
John A. ELIX
Keyword(s):  
New Zealand ◽  
South America ◽  
High Frequency ◽  
Southern South America ◽  
South Eastern

Abstract:Pannaria leproloma is shown to be a New Zealand endemic, and is characterized by coarse isidiomorphs/isidia, a high frequency of apothecia and the presence of two cytotoxic scabrosin esters, previously unknown from Pannariaceae, and present in 40 of the samples studied. It is not a member of the Pannaria sphinctrina group, as previously thought. It has frequently been confused with a related, finely sorediate, very sparingly fertile species, which lacks scabrosin esters in more than 99 of the specimens studied. This latter species is widely distributed both in southern South America (where it is one of the most common corticolous lichens), south-eastern areas of Australia and in New Zealand. It was originally described as Psoroma isidiosum, but had to be renamed when transferred to Pannaria, and is here named Pannaria farinosa.

Resistivity monitoring of the tephra barrier at Crater Lake, Mount Ruapehu, New Zealand

2011 ◽  
Vol 73 (3) ◽  
pp. 243-250 ◽  
Author(s):  
G. Turner ◽  
M. Ingham ◽  
H. Bibby ◽  
H. Keys
Keyword(s):  
New Zealand ◽  
Crater Lake ◽  
Mount Ruapehu

scholarly journals Hybrid broadband ground motion simulation validation of small magnitude earthquakes in Canterbury, New Zealand

2020 ◽  
Vol 36 (2) ◽  
pp. 673-699 ◽  
Author(s):  
Robin L Lee ◽  
Brendon A Bradley ◽  
Peter J Stafford ◽  
Robert W Graves ◽  
Adrian Rodriguez-Marek
Keyword(s):  
New Zealand ◽  
Ground Motion ◽  
High Frequency ◽  
Motion Simulation ◽  
Small Magnitude ◽  
Ground Motion Simulation ◽  
Simulation Methodology ◽  
Simulation Validation ◽  
Broadband Ground Motion Simulation ◽  
Broadband Ground Motion

Ground motion simulation validation is an important and necessary task toward establishing the efficacy of physics-based ground motion simulations for seismic hazard analysis and earthquake engineering applications. This article presents a comprehensive validation of the commonly used Graves and Pitarka hybrid broadband ground motion simulation methodology with a recently developed three-dimensional (3D) Canterbury Velocity Model. This is done through simulation of 148 small magnitude earthquake events in the Canterbury, New Zealand, region in order to supplement prior validation efforts directed at several larger magnitude events. Recent empirical ground motion models are also considered to benchmark the simulation predictive capability, which is examined by partitioning the prediction residuals into the various components of ground motion variability. Biases identified in source, path, and site components suggest that improvements to the predictive capabilities of the simulation methodology can be made by using a longer high-frequency path duration model, reducing empirical V s30-based low-frequency site amplification, and utilizing site-specific velocity models in the high-frequency simulations.

A magnetotelluric study of Mount Ruapehu volcano, New Zealand

2009 ◽  
Vol 179 (2) ◽  
pp. 887-904 ◽  
Author(s):  
M. R. Ingham ◽  
H. M. Bibby ◽  
W. Heise ◽  
K. A. Jones ◽  
P. Cairns ◽  
...  
Keyword(s):  
New Zealand ◽  
Mount Ruapehu ◽  
Ruapehu Volcano

New sponge species from hydrothermal vent and cold seep sites off New Zealand

Zootaxa ◽  
2019 ◽  
Vol 4576 (3) ◽  
pp. 401 ◽  
Author(s):  
MICHELLE KELLY ◽  
ASHLEY A. ROWDEN
Keyword(s):  
New Zealand ◽  
Future Study ◽  
Hydrothermal Vent ◽  
Cold Seep ◽  
Sponge Species ◽  
The Third ◽  
The North ◽  
New Subgenus ◽  
The Future ◽  
Hydrothermal Vent Field

Three new sponge species in the demosponge families Chalinidae Gray and Suberitidae Schmidt are described from the Calypso hydrothermal vent field in the Bay of Plenty, and one species from seep sites along the Hikurangi Margin, to the east of the North Island, New Zealand. The Calypso hydrothermal vent field is dominated by the chalinid sponge Haliclona (Soestella) battershilli sp. nov., a large, cream-coloured, finely branched species, and the less common H. (Halichoclona) sonnae sp. nov., an encrusting, translucent white, cushion-shaped species. The third species, the suberitid sponge Protosuberites novaezelandiae sp. nov., forms encrustations with digitate projections. Haliclona (Halichoclona) sonnae sp. nov. and Protosuberites novaezelandiae sp. nov. represent new subgenus and genus records, respectively, for New Zealand waters. The methanotrophic suberitid sponge, Pseudosuberites thurberi sp. nov., is found at many of the cold seep sites on the Hikurangi Margin where it forms extensive, encrusting to digitate mats. The description of these species provides a basis for the future study of the ecology of sponges that are apparently endemic to vent and seep habitats off New Zealand. 

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