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    Online Resource
    Online Resource
    Cambridge :Cambridge University Press,
    Keywords: Paleomagnetism--Quaternary. ; Electronic books.
    Description / Table of Contents: This volume presents an account of the uses of magnetic measurements in the environmental geosciences. It focuses on the Quaternary geological period and reviews the application of magnetic studies to climatic and environmental problems. The book is aimed at research scientists, graduates and advanced undergraduates.
    Type of Medium: Online Resource
    Pages: 1 online resource (404 pages)
    Edition: 1st ed.
    ISBN: 9781139145824
    DDC: 538.727
    Language: English
    Note: Cover -- Half-title -- Title -- Copyright -- Contents -- Contributors -- Preface -- 1- Introduction -- Evolution of Quaternary climate -- Magnetic contributors to sediments, soils, dusts and organic tissues -- A tool kit for the environmental magnetist -- Magnetic parameters -- Instrumentation -- Measurement techniques -- Magnetic units -- Magnetic properties of natural crystals -- Magnetic discrimination -- Magnetic modelling -- Magnetic investigations in Quaternary contexts -- References -- 2- The North Atlantic as a Quaternary magnetic archive -- Introduction -- Magnetism and climate in the North Atlantic -- Heinrich layers -- Mechanisms for generating Heinrich events -- The relationship between Heinrich layers and climate -- Heinrich layers and sediment sources -- Magnetic signatures of Heinrich layers -- Proximal sedimentation: the magnetic signature of Heinrich layers from the Labrador Sea -- Geographic variation in magnetic properties and the signature of Heinrich events -- Conclusions -- References -- 3- Palaeomonsoons I: the magnetic record of palaeoclimate in the terrestrial loess and palaeosol sequences -- Introduction -- The East Asian summer and winter monsoons -- Sources of the loess? -- Chronology of the Chinese loess and soil sequences -- The magnetic properties of the Chinese loess-soil sequences -- Morphology and source of the loess/soil magnetic minerals. -- The present day connection between climate and soil magnetism -- Palaeoclimate from palaeosusceptibility -- Soil chronofunctions -- Palaeoclimate reconstructions -- Other approaches to palaeoclimatic reconstruction from the Chinese loess and soils. -- Alternative views -- Magnetism-palaeosol relationships in other parts of the world -- Future prospects -- Acknowledgements -- References. , 4- Palaeomonsoons II: magnetic records of aeolian dust in Quaternary sediments of the Indian Ocean -- Introduction -- Palaeowinds from dust records in deep-sea sediments -- Central North Atlantic -- Aeolian flux to the north-west and central Pacific -- Magnetic susceptibility as a record of aeolian dust in Indian Ocean sediments -- Paramagnetic/diamagnetic contributions to magnetic susceptibility -- Zone 1 (0-1.7 m) -- Zone 2 (1.7 m-~7 m) -- Zone 3 (7-10.5 m) -- Zone 4 (10.5-~22 m) -- Zone 5 (~22-90 m) -- Magnetic mineralogy from magnetic extracts -- Mineralogy of the magnetic extracts -- Magnetic mineralogy of magnetic zones 1-5 -- Source of the paramagnetic susceptibility signal -- Source of the Owen Ridge magnetic susceptibility signal -- Summary -- Future prospects -- Acknowledgements -- References -- 5- Bacterial magnetite and the Quaternary climate record -- Introduction -- Ecology and physiology of magnetogenic bacteria -- Magnetotactic bacteria -- Dissimilatory iron-reducing bacteria -- Ecology -- Identification of bacterial magnetosomes in Quaternary sediments and soils -- Magnetic identification -- Identification of bacterial magnetite by microscopy -- Bacterial magnetite in Quaternary sediments -- Marine sediments -- Conclusions: bacterial magnetite and the Quaternary climate record -- References -- 6- Incidence and significance of magnetic iron sulphides in Quaternary sediments and soils -- Introduction -- The structural properties of the iron-sulphide system -- Physical structures and low temperature phase fields -- Magnetic properties of the ferrimagnetic iron sulphides -- Greigite -- Monoclinic pyrrhotite -- Occurrences of ferrimagnetic iron sulphides in freshwater sediments and terrestrial environments -- Palaeosalinity in the Baltic -- Iron sulphides in marine sediments. , Chemical remanent magnetizations carried by iron sulphides: magnetostratigraphic conundrums -- Self-reversal of iron sulphides -- The future -- Methods -- Summary -- Acknowledgements -- References -- 7- Holocene environmental change from magnetic proxies in lake sediments -- Introduction -- Lough Neagh revisited -- Sources of magnetic minerals in lake sediments -- Holocene susceptibility trends -- Long term decreasing or stationary trend -- Long term increasing trend -- Recent records -- Detrital records -- Dilution effects -- Particle-size -- Sediment sources -- Mixing models -- Core correlation and sediment loads -- Magnetic properties as records of diagenesis or authigenesis. -- Magnetic proxies of climate change through glacial-interglacial cycles -- Records of atmospheric deposition -- Fire histories and tephra deposits -- Pollution records -- Final comments -- Acknowledgements -- References -- 8- Magnetic monitoring of air-, land- and water-pollution -- Introduction -- Atmospheric pollutants -- Heavy metals in fly-ashes -- Magnetic minerals associated with atmospheric particulates -- Magnetic properties of coal-fired airborne particles -- Magnetic minerals, heavy metals and road traffic -- Magnetic airborne particles and identification of pollution sources -- Occupational exposure -- Magnetic mapping of atmospheric deposition of pollution -- Soil magnetometry and anthropogenic pollution -- Magnetic measurements on miscellaneous carriers of airborne particles -- Magnetic properties and pollution of fluvial and marine sediments -- Miscellaneous ('non-industrial pollution') -- Extraterrestrial versus volcanic magnetite -- Eolian sedimentation and iron contribution to aerosols -- Coupling between magnetic minerals and heavy metals -- Conclusions -- Acknowledgements -- References. , 9- Environmental factors affecting geomagnetic field palaeointensity estimates from sediments -- Introduction -- Sediment palaeointensity normalization techniques -- Holocene palaeointensity estimates -- Late Pleistocene palaeointensity estimates -- Brunhes palaeointensity estimates -- Discussion -- Conclusions -- References -- 10- Magnetic cyclostratigraphy: high-resolution dating in and beyond the Quaternary and analysis of periodic changes in… -- Introduction -- Orbital cycles and astronomical time-scales -- The orbital cycles -- A breakthrough in geological dating: astronomical time-scales for the late Neogene -- Cyclicity and diagenesis within the marine sedimentary environment -- Cyclic variations in diagenetic conditions -- Sapropels -- Bed-to-bed, marine-continental correlations -- The early Pliocene Ptolemais formation -- Synthesis: conclusions and outlook -- Acknowledgements -- References -- Index.
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