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Micro-XRF Studies of Sediment Cores

This volume presents papers on the use of micro-XRF core scanners in palaeoenvironmental research.

Author : Ian W. Croudace

Release : 2015-07-21

Publisher : Springer

ISBN : 9401798494

File Size : 27.26 MB

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This volume presents papers on the use of micro-XRF core scanners in palaeoenvironmental research. It contains a broad ranging view of instrument capability and points to future developments that will help contribute to higher precision elemental data and faster core analysis. Readers will find a diverse range of research by leading experts that have used micro-XRF core scanners in a wide range of scientific applications. The book includes specific application papers reporting on the use of XRF core scanners in a variety of marine, lacustrine, and pollution studies. In addition, coverage also examines practical aspects of core scanner usage, data optimisation and data calibration and interpretation. In a little over a decade, micro-XRF sediment core scanners have made a substantive contribution to palaeoenvironmental research. Their impact is based on their ability to rapidly, non-destructively and automatically scan sediment cores. Not only do they rapidly provide important proxy data without damaging samples, but they can obtain environmental data at decadal, annual and even sub-annual scales. This volume will help both experienced and new users of these non-destructive core scanners take full advantage of one of the most powerful geochemical screening tools in the environmental scientist's toolbox.

Marine Protected Areas

Twenty Years of XRF Core Scanning Marine Sediments: What Do Geochemical
Proxies Tell Us? In: Croudace, I.W., Rothwell, R.G. (Eds.), Developments in
Paleoenvironmental Research Volume 17 Micro-XRF Studies of Sediment Cores:
 ...

Author : John Humphreys

Release : 2019-10

Publisher :

ISBN : 0081026986

File Size : 79.33 MB

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Marine Protected Areas: Science, Policy and Management addresses a full spectrum of issues relating to Marine Protected Areas (MPS) not currently available in any other single volume. Chapters are contributed by a wide range of working specialists who examine conceptions and definitions of MPAs, progress on the implementation of worldwide MPAs, policy and legal variations across MPAs, the general importance of coastal communities in implementation, and the future of MPAs. The book constructively elucidates conflicts, issues, approaches and solutions in a way that creates a balanced consideration of the nature of effective policy and management. Those in theory, designation, implementation or management of MPAs, from individuals, marine sector organizations, and university and research center libraries will find it an important work. Provides a much needed 'one stop shop' for information on Marine Protected Areas Presents chapters from a diverse group of contributors, enabling a broad and deep perspective Includes case studies throughout, providing real-life examples and best practice recommendations

Annually Laminated Lake Sediments

[CrossRef] Davies, S.J.; Lamb, H.F.; Roberts, S.J. Micro-XRF core scanning in
Palaeolimnology:recent developments. In Micro-XRF Studies of Sediment Cores:
Applications of a Non-destructive Tool for the Environmental Sciences; Croudace
, ...

Author : Wojciech Tylmann

Release : 2020-04-28

Publisher : MDPI

ISBN : 3039287869

File Size : 32.59 MB

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The collection of papers presented in this book illustrates the recent progress made in varved sediment research and highlights the large variety of methodological approaches and research directions applied. The contributions cover monitoring of modern sediment fluxes using sediment traps; geochronological and sedimentological analyses of annually laminated lacustrine sediments or varves; and multiproxy investigations, including geochemical and biological proxies as well as spatiotemporal analyses based on multicore studies supported by satellite images and X-ray computed tomography (CT). The scientific issues discuss the influences of hydrological and climatological phenomena on short-term changes in sediment flux, the relationships between biogeochemical (limnological) processes in the water column and the formation of varves, the preservation of environmental signals in varved sediments, and possibilities of synchronizing varved records with other high-resolution environmental archives such as tree rings.

Condensed Matter Researches in Cryospheric Science

Giannoncelli, A. In Proceedings of the 24th International Congress on X-Ray
Optics and Microanalysis, Trieste, Italy, 25–29 September 2017. 4. Croudace,
I.W.; Rothwell, R.G. MIcro-XRF Studies of Sediment Cores; Springer: Berlin,
Germany, ...

Author : Augusto Marcelli

Release : 2019-09-18

Publisher : MDPI

ISBN : 3039213237

File Size : 30.89 MB

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The cryosphere is very sensitive to climate change, and glaciers represent one of the most important archives of atmospheric composition and its variability. From the Himalaya to the European Alps, the longest mid-latitude mountain chain in the world, lie thousands of glaciers that have collected atmospheric compounds over the last millennia. China and Italy are located at the opposite terminals of this long mountain chain, comprising strategic positions for understanding climate evolution and providing important information for the modeling of future climates. The results presented are highlights of some of the most recent advances in cryospheric studies, especially on the topic of mineral dust and aerosols in the atmosphere. They evidence the complexity of the chemical–physical processes involving solid compounds occurring in glacier, snow, and permafrost environments, covering different aspects such as spatial and temporal trends, as well as the impact of mineral and nonmineral particles. Results also show that recent advances in measurement techniques and source apportionment may be powerful and sophisticated tools to provide novel, high-quality scientific information.

Archaeological Soil and Sediment Micromorphology

Furthermore, Figures 41.2 and 41.3 illustrate additional archaeological
applications of microXRF. Due to the ... (2015) MicroXRF Studies of Sediment
Cores: Applications of a Non‐Destructive Tool for the Environmental Sciences (
Vol. 17).

Author : Cristiano Nicosia

Release : 2017-10-23

Publisher : John Wiley & Sons

ISBN : 1118941055

File Size : 51.17 MB

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Chapter 39 FTIR Microscopy -- 39.1 Principles of the Analytical Method -- 39.2 Sampling and Analytical Procedure -- 39.3 Archaeological Applications -- References -- Chapter 40 X-ray Microdiffraction -- 40.1 Fundamentals of X-ray Diffraction -- 40.2 XRD Instrumentation -- 40.3 Output and Analysis -- 40.4 Applications to Archaeological Micromorphology Samples -- 40.5 Concluding Remarks -- References -- Chapter 41 Micro XRF -- 41.1 Principles of the Analytical Method -- 41.2 Sampling and Analytical Procedure -- 41.3 Archaeological Applications -- 41.4 Concluding Remarks -- References -- Chapter 42 Micro-CT Scanning -- 42.1 Principles of the Analytical Method -- 42.2 Sampling and Analytical Procedures -- 42.3 Archaeological Applications -- 42.4 Concluding Remarks -- References -- Chapter 43 Electron Probe X-ray Microanalysis (SEM-EPMA) Techniques -- 43.1 Principles of the Techniques -- 43.2 Sample Preparation and Analysis -- 43.3 Archaeological Applications -- References -- 44 Reflected Light -- 44.1 Principles of the Analytical Method -- 44.2 Sampling and Analytical Procedure -- 44.3 Archaeological Applications -- References -- Index -- EULA

New Techniques in Sediment Core Analysis

A geochemical application of the ITRAX scanner to a sediment core containing
eastern Mediterranean sapropel units J . THOMSON , I . W ... UK Abstract : The
ITRAX micro - X - ray fluoresence ( XRF ) core scanner has been applied in a
sediment geochemistry investigation . ... 1998 ) , have mainly been applied to : •
studies of climatologically driven cyclicities in sediment deposition that are
reflected , for ...

Author : R. G. Rothwell

Release : 2006

Publisher : Geological Society of London

ISBN : 9781862392106

File Size : 82.94 MB

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In this volume, recent advances in analytical and logging technology and their application to the analysis of sediment cores are presented. Developments in providing access to core data and associated datasets, and advances in data mining technology in order to integrate and interpret new and legacy datasets within the wider context of seafloor studies are also discussed.

The Oceans in the Earth System

In the studied sediments, millennialscale variability appears as cyclic changes
between organic-carbon-rich (up to 4 % TOC), ... XRF core scanner-derived
element distributions (supported by conventional XRF measurements) reveal
cyclic ... Proxy variables are the thickness of varve sublaminae and element
counts (Al, Si, S, CI, K, Ti, Mn, Fe, and Sr) analysed by micro X-ray fluorescence
spectrometry.

Author : Gerold Wefer

Release : 2007

Publisher :

ISBN :

File Size : 48.43 MB

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Handbook of Sea-Level Research

In sea-level studies, greater confidence in field interpretations may be obtained
through laboratory study of micro-scale sedimentary structures. Such analyses
range from microscope examination of field-collected peels in the laboratory to ...

Author : Ian Shennan

Release : 2015-02-19

Publisher : John Wiley & Sons

ISBN : 1118452577

File Size : 72.82 MB

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Measuring sea-level change – be that rise or fall – isone of the most pressing scientific goals of our time and requiresrobust scientific approaches and techniques. This Handbookaims to provide a practical guide to readers interested in thischallenge, from the initial design of research approaches throughto the practical issues of data collection and interpretation froma diverse range of coastal environments. Building on thirtyyears of international research, the Handbook comprises 38 chaptersthat are authored by leading experts from around the world. The Handbook will be an important resource to scientists interestedand involved in understanding sea-level changes across a broadrange of disciplines, policy makers wanting to appreciate ourcurrent state of knowledge of sea-level change over differenttimescales, and many teachers at the university level, as well asadvanced-level undergraduates and postgraduate research students,wanting to learn more about sea-level change. Additional resources for this book can be found at: ahref="http://www.wiley.com/go/shennan/sealevel"www.wiley.com\go\shennan\sealevel/a

Shaping the Earth's Surface

Characterization of Holocene palaeoenvironmental changes identified in varved
sediments (Dead Sea) - Climatic ... Core segments were measured by micro-XRF
for geochemical characterization. ... Studies in the Middle Rhine Region (MRR)
near Koblenz in 2005 show that there is a Correlation between ant nests and ...

Author :

Release : 2006

Publisher :

ISBN :

File Size : 66.94 MB

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Multi-Scale, Multi-Proxy Investigation of Late Holocene Tropical Cyclone Activity in the Western North Atlantic Basin

This is presented as a four article-type thesis that investigates how changing climate conditions have impacted the frequency and paths of tropical cyclones in the western North Atlantic basin on different spatial and temporal scales.

95%) hurricanes and all major hurricane (± 1 year) being recorded in the isotope record, whereas the regional reconstruction shows no major hurricane, only a few hurricanes ( 40%) and one signal with a higher error ( 1 year). This thesis contributes to advancing our knowledge in paleotempestology of the western North Atlantic basin by: 1) bringing an up-to-date current status on paleotempestology, 2) the development and ongoing use of a new paleotempestology database for the western North Atlantic basin publicly available, 3) a local scale study using new XRF core elemental technology and 4) the exploratory use of tree-ring ?-cellulose oxygen isotopic analysis based on contemporary and historical documents at local sites.">

Author : François Oliva

Release : 2017

Publisher :

ISBN :

File Size : 24.28 MB

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Paleotempestology, the study of past tropical cyclones (TCs) using geological proxy techniques, is a growing discipline that utilizes data from a broad range of sources. Most paleotempestological studies have been conducted using "established proxies", such as grain-size analysis, loss-on-ignition, and micropaleontological indicators. More recently researchers have been applying more advanced geochemical analyses, such as X-ray fluorescence (XRF) core scanning and stable isotopic geochemistry to generate new paleotempestological records. This is presented as a four article-type thesis that investigates how changing climate conditions have impacted the frequency and paths of tropical cyclones in the western North Atlantic basin on different spatial and temporal scales. The first article (Chapter 2; Oliva et al., 2017, Prog Phys Geog) provides an in-depth and up-to-date literature review of the current state of paleotempestological studies in the western North Atlantic basin. The assumptions, strengths and limitations of paleotempestological studies are discussed. Moreover, this article discusses innovative venues for paleotempestological research that will lead to a better understanding of TC dynamics under future climate change scenarios. The second article (Chapter 3; Oliva et al., submitted, The Holocene) presents the development of the first database summarizing the most up-to-date paleotempestological proxy data available for TC reconstructions for the western North Atlantic basin. Subsets of this new database are then used to reconstruct TC variability in the western North Atlantic basin. Using our new developed subsets, we investigate a key hypothesis, the Bermuda High Hypothesis that has been proposed to have influenced TC paths over centennial to millennial timescales. Results show an oscillation in the distribution of TC landfalls along the North American coast, suggesting a centennial oscillation in the mean summer position of the high pressure system. We suggest that a more serious, millennial scale shift in the Bermuda High to a northeastern (NE position) may have occurred at 3̃000 and 1̃000 cal yr BP. The third article (Chapter 4; Oliva et al., under review, Marine Geology) presents a local multi-proxy reconstruction of TC activity during the past 800 years from Robinson Lake, Chezzetcook Inlet in Nova Scotia, Canada. Here, we are testing the more recent use of the XRF scanning approach to paleotempestology at a local scale. Two sediment cores were extracted from Robinson Lake that were dated by 210Pb and 14C, analyzed for organic matter content, benthic foraminifera and thecamoebians, sediment grain size, and a range of elements and elemental ratios determined by XRF core scanning. Results show two periods of low TC activity based on multiple proxies including XRF technology: one from 1̃150 to 1475 CE (800 - 475 cal yr BP) and the other from 1670 CE (280 cal yr BP) to the present, with the intervening period from 1̃475 to 1670 CE (475 - 280 cal yr BP) as a time of more frequent and possibly higher magnitude TC activity. The fourth article (Chapter 5. Oliva et al., in preparation, Canadian Journal of Earth Sciences) explores the potential use of stable oxygen isotopes in tree ring ?-cellulose to reconstruct past local TC activity surrounding areas of known TC strikes. Cores of 12 Picea mariana trees were extracted adjacent to Robinson Lake, Chezzetcook Inlet, Nova Scotia in order to test more contemporary and historically documented records of TC activity in this region as per Chapter 4. TCs precipitate 18O-depleted rain, leaving a unique signature in the source water that trees use to form cellulose. Using an autoregressive integrated moving average (ARIMA AR-1) model to detrend the data, local and regional time series were reconstructed. Local reconstructions led to most (> 95%) hurricanes and all major hurricane (± 1 year) being recorded in the isotope record, whereas the regional reconstruction shows no major hurricane, only a few hurricanes ( 40%) and one signal with a higher error ( 1 year). This thesis contributes to advancing our knowledge in paleotempestology of the western North Atlantic basin by: 1) bringing an up-to-date current status on paleotempestology, 2) the development and ongoing use of a new paleotempestology database for the western North Atlantic basin publicly available, 3) a local scale study using new XRF core elemental technology and 4) the exploratory use of tree-ring ?-cellulose oxygen isotopic analysis based on contemporary and historical documents at local sites.

Initial Core Descriptions, Deep Sea Drilling Project

Piece Number Graphic Representation Shipboard Studies VISUAL CORE
DESCRIPTION FOR IGNEOUS ROCKS IOJw ... Shipboard Geochemistry ( XRF ,
% ) : Interval 44-47 69-71 96-98 cm cm cm 49.03 49.41 49.65 1.70 1.59 1.83 A
203 13.75 ... to vein symbols in the graphic presentation From 0.0 20.0 cm is
sediment which is discussed in the " Sedimentary Core Barrel ... Aphyric basalt
has microphenocrysts of mainly clinopyroxene and partly plagioclase , and glass
The ratio of ...

Author : Scripps Institution of Oceanography

Release :

Publisher :

ISBN :

File Size : 33.7 MB

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Proceedings of the Ocean Drilling Program

Igneous and Metamorphic Rocks Igneous and metamorphic rock cores are
handled differently from sedimentary cores . ... The working half of the hard - rock
core is then sampled for shipboard laboratory studies . ... Some of these samples
are later subdivided for XRF analysis and thinsectioning , so that as many
measurements as ... Paleontological Data Microfossil abundances , preservation
, and zone assignments appear on the core - description form under the heading
** Biostrat .

Author : Ocean Drilling Program

Release : 1990-03-26

Publisher :

ISBN :

File Size : 61.77 MB

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The Black Sea--geology, Chemistry, and Biology

... SEA SEDIMENT CORES , > ORGANIC ANALYSES OF BLACK SEA CORESS
ORGANIC ANALYSIS , ACID - ALKANE ... MICROGRAPHS >
PALYNOPLANKTOLOGIC ANALYSIS OF SOME BLACK SEA CORES
PALYNOPLANKTOLOGIC ...

Author : Egon T. Degens

Release : 1974

Publisher :

ISBN :

File Size : 32.52 MB

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Proceedings of the Ocean Drilling Program

220 H H 0 Shipboard Studies VISUAL CORE DESCRIPTION FOR IGNEOUS
ROCKS Graphic Representation Orientation Piece Number ... 35.0 Stable Incl . (
R ) -51.9 Vpi ( km / s ) D ( g / cc ) P ( % ) Shipboard Geochemistry ( XRF , % ) :
Interval 44-47 69-71 95-98 cm 49.03 49.41 49.65 ... From 0.0 20.0 cm is sediment
which is discussed in the ' ' Sedimentary Core Barrel Description " . ... Aphyric
basalt has microphenocrysts of mainly clinopyroxene and partly plagioclase , and
glass .

Author : Scripps Institution of Oceanography

Release : 1981

Publisher :

ISBN :

File Size : 40.17 MB

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Chemical Abstracts

Author :

Release : 2002

Publisher :

ISBN :

File Size : 71.88 MB

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Selected Water Resources Abstracts

Group SB—Sources Of Pollution In general, the distribution of the heavy metal
concentration in sediments is ... (Lantz-P'TT) W89-09775 STUDIES ON THE
GROUNDWATER POLLUTION IN ISLANDS (I)--SEAWATER INTRUSION INTO ...
Concentrations of nitrate-N ranged from 455 to 645 micrograms/L. Mean annual
concentration of nitrate N increased from ... Three sediment cores were collected
from Lake Biwa and analyzed for their dimethylarsinate (DMA),
monomethylarsonate ...

Author :

Release : 1989

Publisher :

ISBN :

File Size : 35.64 MB

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Graduate Studies

80:51 80:52 80:53 80:54 80:57 stratigraphy, classification, micromorphology and
ultrastructure of conodonts; mineralogy: clay ... basaltic komatites and tholeites;
sedimentology and sedimentary geochem: geochem of sedimentary rocks and
DSDP core samples; ... applied to open pit and underground mining operations,
econ mineralogy and ore microscopy, ore analysis by AAS, XRF, XRD, EPMA, ...

Author :

Release : 1982

Publisher :

ISBN :

File Size : 87.73 MB

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Yearbook

Core Analysis Laboratory The Core Analysis Laboratory in the Marine Sciences
Building houses hundreds of piston cores ... for samples to be used in
paleomagnetic , micropaleontologic , geochemical , mineralogical , and other
studies . To curate this valuable collection , core lab technicians catalog the
incoming specimens , split the cores , describe the sediments ... X - ray
Fluorescence Analytical Facility The X - ray Fluorescence Analytical Facility
includes a Norelco 52530 vacuum ...

Author : Hawaii Institute of Geophysics

Release : 1982

Publisher :

ISBN :

File Size : 34.57 MB

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Antarctic Bibliography

Author :

Release : 1979

Publisher :

ISBN :

File Size : 33.67 MB

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