ORCID Profile
0000-0003-3270-2675
Current Organisations
GNS Science Ltd
,
GNS Science
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Informa UK Limited
Date: 03-1994
Publisher: Informa UK Limited
Date: 12-1992
Publisher: Informa UK Limited
Date: 09-2000
Publisher: Informa UK Limited
Date: 06-2009
Publisher: Informa UK Limited
Date: 08-1987
Publisher: Geological Society of America
Date: 10-02-2017
DOI: 10.1130/GSATG321A.1
Publisher: Informa UK Limited
Date: 12-2012
Publisher: Informa UK Limited
Date: 08-1987
Publisher: Elsevier BV
Date: 08-2013
Publisher: Elsevier BV
Date: 08-2011
Publisher: Springer International Publishing
Date: 26-08-2014
Publisher: Elsevier BV
Date: 08-2016
Publisher: Informa UK Limited
Date: 19-03-2023
Publisher: Informa UK Limited
Date: 10-1986
Publisher: Informa UK Limited
Date: 06-1994
Publisher: Elsevier BV
Date: 07-2017
Publisher: Informa UK Limited
Date: 02-10-2014
Publisher: Elsevier BV
Date: 07-2019
DOI: 10.1016/J.SCITOTENV.2019.04.063
Abstract: We present results from the first urban chemical and isotopic soil baseline survey to be completed for a New Zealand city. The major, minor, trace and isotopic composition of soils from different depths across the city of Dunedin are shown to be spatially variable due to geogenic and anthropogenic influences. Based on Principal component analysis (PCA) for the shallow soil depth, at least 40% (PC1 and PC3) of the dataset variance is attributed to a geogenic source. Soils enriched in Al, Cr, Fe, Hf, Mo, Ni, Th, Ti, U, V and Zr (PC1) are spatially associated with mapped units of the basaltic Dunedin Volcanic Group, indicating a geogenic source. An anthropogenic influence is attributed to at least 23% (PC2 and PC5) of the dataset variance. The chemical elements As, B, Bi, Cd, Cu, P, Pb, Sb, Sn and Zn (PC2) are strongly spatially associated with soils s led above high-density urban residential, commercial and industrial sites, and are interpreted to reflect heavy metal contamination from human activities. In conjunction with historical vehicle emissions from leaded petrol, we suggest that legacy leaded paint from residential, commercial and industrial buildings flaking into Dunedin City soils is a significant contributor to Pb in the Dunedin urban environment. Median heavy metal contents for shallow soils (0-2 cm) from a variety of land-uses throughout Dunedin City are shown to be almost an order of magnitude greater than median heavy metal concentrations in soils from regional baselines. Significantly, urban anthropogenic sources of heavy metals, and C, N and S isotopes are shown to exert a stronger influence on soil composition than rural anthropogenic sources. Results from this study provide an important case-study for urban soil contamination for a relatively young city from the Southern Hemisphere, for which there are currently few ex les.
Publisher: New Zealand Society for Earthquake Engineering
Date: 30-06-2017
DOI: 10.5459/BNZSEE.50.2.106-116
Abstract: Tens of thousands of landslides were generated over 10,000 km2 of North Canterbury and Marlborough as a consequence of the 14 November 2016, Mw7.8 Kaikōura Earthquake. The most intense landslide damage was concentrated in 3500 km2 around the areas of fault rupture. Given the sparsely populated area affected by landslides, only a few homes were impacted and there were no recorded deaths due to landslides. Landslides caused major disruption with all road and rail links with Kaikōura being severed. The landslides affecting State Highway 1 (the main road link in the South Island of New Zealand) and the South Island main trunk railway extended from Ward in Marlborough all the way to the south of Oaro in North Canterbury. The majority of landslides occurred in two geological and geotechnically distinct materials reflective of the dominant rock types in the affected area. In the Neogene sedimentary rocks (sandstones, limestones and siltstones) of the Hurunui District, North Canterbury and around Cape C bell in Marlborough, first-time and reactivated rock-slides and rock-block slides were the dominant landslide type. These rocks also tend to have rock material strength values in the range of 5-20 MPa. In the Torlesse ‘basement’ rocks (greywacke sandstones and argillite) of the Kaikōura Ranges, first-time rock and debris avalanches were the dominant landslide type. These rocks tend to have material strength values in the range of 20-50 MPa. A feature of this earthquake is the large number (more than 200) of valley blocking landslides it generated. This was partly due to the steep and confined slopes in the area and the widely distributed strong ground shaking. The largest landslide dam has an approximate volume of 12(±2) M m3 and the debris from this travelled about 2.7 km2 downslope where it formed a dam blocking the Hapuku River. The long-term stability of cracked slopes and landslide dams from future strong earthquakes and large rainstorms are an ongoing concern to central and local government agencies responsible for rebuilding homes and infrastructure. A particular concern is the potential for debris floods to affect downstream assets and infrastructure should some of the landslide dams breach catastrophically. At least twenty-one faults ruptured to the ground surface or sea floor, with these surface ruptures extending from the Emu Plain in North Canterbury to offshore of Cape C bell in Marlborough. The mapped landslide distribution reflects the complexity of the earthquake rupture. Landslides are distributed across a broad area of intense ground shaking reflective of the elongate area affected by fault rupture, and are not clustered around the earthquake epicentre. The largest landslides triggered by the earthquake are located either on or adjacent to faults that ruptured to the ground surface. Surface faults may provide a plane of weakness or hydrological discontinuity and adversely oriented surface faults may be indicative of the location of future large landslides. Their location appears to have a strong structural geological control. Initial results from our landslide investigations suggest predictive models relying only on ground-shaking estimates underestimate the number and size of the largest landslides that occurred.
Publisher: Informa UK Limited
Date: 03-1991
Publisher: Informa UK Limited
Date: 12-2010
Publisher: Informa UK Limited
Date: 1988
Publisher: Geological Society of London
Date: 2020
Publisher: Geological Society of London
Date: 02-06-2015
DOI: 10.1144/SP389.10
Publisher: Seismological Society of America (SSA)
Date: 26-10-2023
DOI: 10.1785/0220230196
Publisher: Informa UK Limited
Date: 07-1985
Publisher: Oxford University Press (OUP)
Date: 04-2010
DOI: 10.1111/J.1365-2230.2009.03460.X
Abstract: Previous studies have reported a protective association between high levels of exposure to endotoxin during infancy and the development of subsequent eczema within the first 6 months of life. To investigate the association between exposure in infancy to endotoxin from mattress dust and the development of eczema up to age of 6 years in 2166 children participating in the German Influences of Lifestyle-Related Factors on the Immune System and the Development of Allergies in Childhood (LISA) study, an ongoing population-based birth-cohort study. Endotoxin levels in house dust s les collected at 3 months after birth were quantified using the kinetic Limulus amebocyte lysate assay. Specific IgE antibodies to common food and aeroallergens were measured using radioallergosorbent test, fluorenzyme immunoassay (Pharmacia CAP system) when children were 2 and 6 years old. Information on eczema symptoms and physician-diagnosed eczema were collected at each follow-up using a questionnaire. No association was found between endotoxin exposure from mattresses (the mattresses of each child and their parents were examined) during infancy and the development of eczema symptoms or doctor-diagnosed eczema by 6 years of age (OR = 1.1, 95% CI 0.5-2.3, and OR = 1.1, 95% CI 0.4-3.3, respectively). No association was found when children with only atopic eczema. Endotoxin exposure during infancy is unlikely to have a large long-term effect on the development of eczema, especially the atopic form.
Publisher: Springer Science and Business Media LLC
Date: 05-1990
DOI: 10.1007/BF00208854
Publisher: Springer Science and Business Media LLC
Date: 07-1994
DOI: 10.1007/BF00206873
Publisher: Informa UK Limited
Date: 02-01-2016
Publisher: Informa UK Limited
Date: 03-06-2018
Publisher: Informa UK Limited
Date: 03-2009
Publisher: Informa UK Limited
Date: 04-02-2018
Publisher: Informa UK Limited
Date: 1986
Location: Australia
No related grants have been discovered for Mark Rattenbury.