The role of earthquakes and climate in the formation of diamictic sediments in a New Zealand mountain lake

Woodward, Craig; Slee, Adrian; Gadd, Patricia; Zawadzki, Atun; Hamze, Hasar; Zahra, David

doi:10.1016/j.quaint.2017.10.051

Cited by 9 publications

(6 citation statements)

References 67 publications

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“…Select elements from the XRF results were used in this study: Pb, Br, Si, Ti, and Inc/coh (more elemental data can be found in the Supplementary Data). Molybdenum Incoherent/coherent ratio (Inc/coh) approximates the average matrix composition of atomic numbers and was used to estimate organic matter content in sediment archives (Croudace and Rothwell, 2015;Field et al, 2018;Woodward and Gadd, 2019;Woodward et al, 2018). Br was used as another indicator for organic rich sediments (Croudace and Rothwell, 2015;Fedotov et al, 2015;Ziegler et al, 2008).…”

Section: Geochemistrymentioning

confidence: 99%

The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia

Beck

Mariani

Fletcher

et al. 2020

Environmental Pollution

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Mining causes extensive damage to aquatic ecosystems via acidification, heavy metal pollution, sediment loading, and Ca decline. Yet little is known about the effects of mining on freshwater systems in the Southern Hemisphere. A case in point is the region of western Tasmania, Australia, an area extensively mined in the 19 th century, resulting in severe environmental contamination. In order to assess the impacts of mining on aquatic ecosystems in this region, we present a multiproxy investigation of the lacustrine sediments from Owen Tarn, Tasmania. This study includes a combination of radiometric dating ( 14 C and 210 Pb), sediment geochemistry (XRF and ICP-MS), pollen, charcoal and diatoms. Generalised additive mixed models were used to test if changes in the aquatic ecosystem can be explained by other covariates.Results from this record found four key impact phases: (1) Pre-mining, (2) Early mining, (3) Intense mining, and (4) Post-mining. Before mining, low heavy metal concentrations, slow sedimentation, low fire activity,

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Section: Geochemistrymentioning

confidence: 99%

The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia

Beck

Mariani

Fletcher

et al. 2020

Environmental Pollution

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“…The role of earthquakes and climate in the formation of diamictic sediments was examined by Woodward et al (2018) in a New Zealand alpine lake. Different events with environmental significance are diamictic layers determined by facies classification based on XRF core-scanning in combination with magnetic susceptibility, grain size analysis and µCT-scanning on a last 2000 years of a sediment record from Lake Chappa'ai in the Southern Alps of New Zealand.…”

Section: Palaeoseismic Studiesmentioning

confidence: 99%

Current perspectives on the capabilities of high resolution XRF core scanners

Croudace

Löwemark

Tjallingii

et al. 2019

Quaternary International

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The introduction and application of high resolution XRF core scanners has made an enormous contribution to palaeoclimate science over the last two decades. These core scanners have become essential analytical tools for the investigation of sedimentary and other natural cumulative records of environmental change. Their widespread adoption by the environmental and geoscience communities has had a significant impact on the ability to systematically record high resolution chemical profiles in marine and lake sediments and soils. The range of applications has broadened beyond sedimentology and palaeoclimatology and now extends into scanning samples of speleothems, corals, mumiyo mounds, rocks, sedimentary nodules, archaeological artefacts, tree sections and melt segregations. Other areas exploiting the capability of XRF core scanners are mineral exploration, geotechnical characterisation, soil remediation studies and carbon capture and storage research. As a consequence of their ability to efficiently determine detailed, non-destructive elemental records in sediments and soils, scientific papers published since the year 2000 now number more than 1000.

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“…Glacial micromorphology and microsedimentology are still in their developmental stages but already they are providing a wealth of data and new interpretations for glacial sediments that reveal processes and rheological changes that are crucial to the understanding of subglacial sedimentation processes (cf. Menzies et al, 2016;Woodward et al, 2017;Phillips et al, 2018). New methods, such as using X-ray computed microtomography (mmCT), are being utilized and further developed (cf., Tarplee and van der Meer, 2010;Tarplee et al, 2011;Cnudde and Boone, 2013;Bendle et al, 2015;Fouinat et al, 2017).…”

Section: Advances and Paradigm Shiftsmentioning

confidence: 99%

Glacial Geomorphology

Menzies¹

2011

The SAGE Handbook of Geomorphology

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The role of earthquakes and climate in the formation of diamictic sediments in a New Zealand mountain lake

Cited by 9 publications

References 67 publications

The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia

The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia

Current perspectives on the capabilities of high resolution XRF core scanners

Glacial Geomorphology

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