Palaeomagnetism and the continental crust:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Milton Keynes [u.a.]
Open Univ. Press [u.a.]
1987
|
| Ausgabe: | 1. publ. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XIII, 434 S. graph. Darst., Kt. |
| ISBN: | 0470207434 0335152015 |
Internformat
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| 100 | 1 | |a Piper, John D. A. |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Palaeomagnetism and the continental crust |c J. D. A. Piper |
| 250 | |a 1. publ. | ||
| 264 | 1 | |a Milton Keynes [u.a.] |b Open Univ. Press [u.a.] |c 1987 | |
| 300 | |a XIII, 434 S. |b graph. Darst., Kt. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 650 | 4 | |a Plate tectonics - Role of palaeomagnetism | |
| 650 | 4 | |a Continental crust | |
| 650 | 4 | |a Paleomagnetism | |
| 651 | 4 | |a Earth |x Crust | |
| 856 | 4 | 2 | |m HBZ Datenaustausch |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=000734143&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
| 999 | |a oai:aleph.bib-bvb.de:BVB01-000734143 | ||
Datensatz im Suchindex
| _version_ | 1804115613942022144 |
|---|---|
| adam_text | Contents
Palaeomagnetic Database x
Acknowledgements xi
Introduction 1
1 Basic principles of rock and mineral magnetism S
1.1 Definition of magnetic behaviour, diamagnetism,
paramagnetism and ferromagnetism 5
1.2 Types of ferromagnetism 10
1.3 Domain structure 11
1.4 The acquisition of magnetism by rocks 15
1.5 Total magnetisation and Köenigsberger ratio 17
2 The magnetic minerals 19
2.1 Introduction 19
2.2 The magnetite-ulvo spinelseries 22
2.3 The hematite-ilmenite series 25
2.4 Maghemite 27
2.5 Goethite 28
2.6 Pyrrhotite 29
2.7 Other natural magnetic materials 30
3 Outline theory of rock and mineral magnetism 31
3.1 Introduction: the properties of superparamagnetic,
single-domain and multi-domain particles 31
3.2 The demagnetising factor, magnetic forces and relaxation
times 35
vi Palaeomagnetism and the Continental Crust
3.3 Single-domain behaviour: the theoretical approach 37
3.4 Coercivity 39
3.5 Temperature dependence of unblocking of magnetic
remanence 39
3.6 Thermoremanent magnetisation 40
3.7 Chemical remanence 43
3.8 Susceptibility 44
3.9 Anisotropy of susceptibility 46
3.10 Magnetisation during slow heating and cooling 49
4 The magnetisations in rocks 53
4.1 Igneous rocks 54
7#£ volcanic and hypabyssal environments
Ophiolites and serpentinisation
The plutonic environment
4.2 Sedimentary rocks 58
The depositional environment: depositional rémanent
magnetisations and post-depositional detrital rémanent
magnetisations
The diagenetic and weathering environments: chemical
rémanent magnetisations
Red sediments
Limestones
Banded ironstone formations
4.3 Metamorphic rocks 72
5 Field and laboratory methods 75
5.1 Objectives 75
5.2 Field sampling 76
5.3 Magnetometers 11
Astatic and parastatic magnetometers
Spinner magnetometers
Cryogenic magnetometers
5.4 Susceptibility meters 82
5.5 Demagnetisation techniques 84
Alternating field (a.f.) demagnetisation
Thermal demagnetisation
Chemical demagnetisation
5.6 Laboratory tests for magnetic minerals and domain structure 90
Domain structure
Isothermal remanence tests
Curie point (thermomagnetic) determinations
Low temperature behaviour
The Lowrie-Fuller test
Contents vii
Palaeomagnetic directions, palaeomagnetic poles 99
and apparent polar wander
6.1 Palaeomagnetic directions and their presentation 99
Spherical projections
Orthogonal projections
6.2 Combining directions of magnetisation 103
Fisher statistics
Comparison of mean directions
Site and group mean directions of magnetisation
Fisher and Bingham distributions
6.3 Identification and separation of magnetic components 110
Vector subtraction
Remagnetisation circles
Use of vector plots
Multicomponent analysis by the Hoffman-Day method and
graphical techniques
Other methods
6.4 Dating components of magnetisation 120
Geochronological dating
The fold test
The conglomerate test
The contact test
The unconformity test
6.5 The geomagnetic field and palaeomagnetic poles 128
The dipole field and axial geocentric dipole model
The axial geocentric dipole — A valid assumption?
Reversals and excursions of the geomagnetic field
6.6 Apparent polar wander (APW) 135
Definition and presentation
Interpretation of APW: the rate of continental movement
Interpretation of APW: tectonic models
The palaeomagnetic data base
7 Archaean and Proterozoic palaeomagnetism 151
7.1 Introduction 151
7.2 Archaean-early Proterozoic APW (2900-2200 Ma) 154
7.3 The 2200-2000 Ma APW path (Fig. 7.3) 161
7.4 The 2000-1750 Ma APW path (Fig. 7.4) 165
7.5 The 1750-1600 Ma APW path (Fig. 7.5) 169
7.6 The 1600-1350 Ma APWpath (Fig. 7.6) 112
1.1 The 1350-1150 Ma APW path (Fig. 7.7) 175
7.8 The 1150-950 Ma APWpath (Fig. 7 8) 178
7.9 Reversal asymmetry and APW 185
7.10 Tectonic implications 187
7.11 Precambrian APW and rates of continental movement 189
viii Palaeomagnetism and the Continental Crust
8 Growth and consolidation of the continental crust
in Archaean and Proterozoic times 193
8.1 Introduction 193
8.2 Geochemical and isotopic signatures 194
8.3 The sedimentary record 197
8.4 Greenstone belts and straight belts 198
8.5 Mobile belts and accretionary orogenic belts 203
8.6 Proterozoic anorogenic magmatism and crustal consolidation 209
8.7 Mineralisation in the continental crust 209
9 Late Proterozoic-Cambrian palaeomagnetism:
breakup and dispersal of the continental crust 215
9.1 Introduction 215
9-2 The 900-700 Ma APWpath (Fig. 9.2) 218
9.3 The 700-570 Ma APWpath (Fig. 9.3) 221
9.4 The Cambrian-Ordovician APW Paths (Fig. 9.4) 226
Gondwanaland
Laurentia
Siberia
Baltica
9.5 Palaeomagnetism of late Precambrian-early Palaeozoic
microplates and accretionary terranes 233
The Armorican microplate
The Bohemian microplate
The Anglo-Welsh microplate
9-6 Geological implications 239
The late Precambrian glaciations
Passive margins and the timing of breakup
The Vendian-Lower Cambrian alkaline province
Environmental changes and marine transgression
The isotopic and chemical signature
The palaeogeography of Vendian—Cambrian times
10 Palaeozoic palaeomagnetism and the formation of
Pangaea 253
10.1 Introduction 253
10.2 Gondwanaland 254
10.3 Palaeozoic palaeomagnetism of Western Europe 259
The British region
Palaeomagnetism and the Caledonian orogeny
Palaeozoic palaeomagnetism of the remainder of Europe
Palaeomagnetism and the Hercynian orogeny
10.4 Palaeozoic palaeomagnetism and the remagnetisation
hypothesis 276
Contents ix
10.5 Palaeozoic palaeomagnetism of the remaining continental
plates 280
Laurentia
The European plate (USSR sector)
Siberia
Khazakhstania and the China plates
10.6 Palaeomagnetism and the reconstruction of Pangaea 289
10.7 The palaeogeography of Palaeozoic times 291
11 Mesozoic and Cenozoic palaeomagnetism and
the breakup of Pangaea 299
11.1 Introduction 299
11.2 Laurentia and Eurasia 300
11.3 Gondwanaland 305
11.4 Sub-plates, microplates and suspect terranes 311
The Mediterranean region
The Japanese arc
North and South China, Kolyma, Sikote Alin and Korea
South East Asia
West Antarctica
The Andean margin of South America
Mexico
The Cordilleran margin of North America
12 The geomagnetic field, continental movements
and configurations and mantle convection since
Archaean times 329
12.1 Introduction 329
12.2 The polarity time scale: Cenozoic and Mesozoic times
Palaeozoic magnetostratigraphy 330
12.3 The geomagnetic polarity history from the palaeomagnetic
record 339
12.4 The polarity history of Precambrian times 341
12.5 The strength of the geomagnetic field 343
12.6 Palaeosecular variation 345
12.7 APW: continental drift or true polar wander? 349
12.8 Geomagnetic intervals, continental velocities and geological
cycles 353
12.9 Palaeomagnetism and mantle convection 360
12.10 Supercontinents and the geoid 363
12.11 The palaeomagnetic signature of global behaviour in Archaean
and Proterozoic times 370
References 375
Appendix 420
Index All
|
| any_adam_object | 1 |
| author | Piper, John D. A. |
| author_facet | Piper, John D. A. |
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| dewey-ones | 538 - Magnetism |
| dewey-raw | 538/.7 |
| dewey-search | 538/.7 |
| dewey-sort | 3538 17 |
| dewey-tens | 530 - Physics |
| discipline | Physik |
| edition | 1. publ. |
| format | Book |
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| geographic_facet | Earth Crust |
| id | DE-604.BV001216783 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T15:25:24Z |
| institution | BVB |
| isbn | 0470207434 0335152015 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-000734143 |
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| owner_facet | DE-19 DE-BY-UBM DE-29 DE-83 DE-188 |
| physical | XIII, 434 S. graph. Darst., Kt. |
| publishDate | 1987 |
| publishDateSearch | 1987 |
| publishDateSort | 1987 |
| publisher | Open Univ. Press [u.a.] |
| record_format | marc |
| spelling | Piper, John D. A. Verfasser aut Palaeomagnetism and the continental crust J. D. A. Piper 1. publ. Milton Keynes [u.a.] Open Univ. Press [u.a.] 1987 XIII, 434 S. graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Plate tectonics - Role of palaeomagnetism Continental crust Paleomagnetism Earth Crust HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=000734143&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Piper, John D. A. Palaeomagnetism and the continental crust Plate tectonics - Role of palaeomagnetism Continental crust Paleomagnetism |
| title | Palaeomagnetism and the continental crust |
| title_auth | Palaeomagnetism and the continental crust |
| title_exact_search | Palaeomagnetism and the continental crust |
| title_full | Palaeomagnetism and the continental crust J. D. A. Piper |
| title_fullStr | Palaeomagnetism and the continental crust J. D. A. Piper |
| title_full_unstemmed | Palaeomagnetism and the continental crust J. D. A. Piper |
| title_short | Palaeomagnetism and the continental crust |
| title_sort | palaeomagnetism and the continental crust |
| topic | Plate tectonics - Role of palaeomagnetism Continental crust Paleomagnetism |
| topic_facet | Plate tectonics - Role of palaeomagnetism Continental crust Paleomagnetism Earth Crust |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=000734143&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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