Komatiite / Nicholas Arndt, C. Michael Lesher, Steve J. Barnes.

Contributor(s):

Material type: Text

TextPublication details: Cambridge : Cambridge University Press, 2008.Description: 1 online resource (488 pages)Content type:

text

Media type:

computer

Carrier type:

online resource

ISBN:

9780511535550
0511535554
1281775576
9781281775573
9780511424038
0511424035
0511423551
9780511423550
0511421699
9780511421693
9780521874748
0521874742
9786611775575
6611775579
1107181739
9781107181731
0511422350
9780511422355
0511423012
9780511423017

Uniform titles:

Cambridge books online.

Subject(s): Genre/Form:

Electronic books.

Additional physical formats: Print version:: No titleDDC classification:

571.8

LOC classification:

RC388.5

Online resources:

Click here to access online

Contents:

Cover; Half-title; Title; Copyright; Dedication; Contents; Preface; Part I Background information -- description of the field characteristics, mineralogy and geochemistry of komatiites; 1 A brief history of komatiite studies and a discussion of komatiite nomenclature; 2 Brief descriptions of six classic komatiite occurrences; 3 Field characteristics, textures and structures; 4 Mineralogy; 5 Geochemistry; 6 Isotopic compositions of komatiites; 7 Experimental petrology; Part II Interpretation -- the manner of emplacement, the origin and the tectonic setting of komatiites.

8 Physical properties of komatiites9 Physical volcanology; 10 Komatiite-associated Ni-Cu-PGE deposits; 11 The hydrous komatiite hypothesis; 12 Compositions and eruption temperatures of komatiitic liquids; 13 Petrogenesis of komatiite; 14 Geodynamic setting; References; General Index; Localities.

Summary: Komatiites erupted billions of years ago as pulsating streams of white-hot lava. Their unusual chemical compositions and exceptionally high formation temperatures produced highly fluid lava that crystallized as spectacular layered flows. Investigation of the extreme conditions in which komatiites formed provides important evidence about the thermal and chemical evolution of the planet, and the nature of the Precambrian mantle. This monograph, written by three experts with long experience in the field, presents a complete account of the characteristics of komatiites including their volcanic structures, textures, mineralogy and chemical compositions. Models for their formation and eruption are evaluated (including the anhydrous vs. hydrous magmas controversy). A chapter is also devoted to the valuable nickel and copper ore deposits found in komatiites. Komatiite is a key reference for researchers and advanced students interested in petrology, Archaean geology, economic geology, and broader questions about the evolution of the Earth's crust and mantle.

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Komatiites erupted billions of years ago as pulsating streams of white-hot lava. Their unusual chemical compositions and exceptionally high formation temperatures produced highly fluid lava that crystallized as spectacular layered flows. Investigation of the extreme conditions in which komatiites formed provides important evidence about the thermal and chemical evolution of the planet, and the nature of the Precambrian mantle. This monograph, written by three experts with long experience in the field, presents a complete account of the characteristics of komatiites including their volcanic structures, textures, mineralogy and chemical compositions. Models for their formation and eruption are evaluated (including the anhydrous vs. hydrous magmas controversy). A chapter is also devoted to the valuable nickel and copper ore deposits found in komatiites. Komatiite is a key reference for researchers and advanced students interested in petrology, Archaean geology, economic geology, and broader questions about the evolution of the Earth's crust and mantle.