UID:
kobvindex_GFZ74248_2
Umfang:
VI, 413 Seiten
,
Illustrationen
ISBN:
0632012196
Serie:
Special publications / the Geological Society, Londonn 13
Inhalt:
Preface
The proposal that ophiolites are on-land fragments of oceanic lithosphere has been with us
for over 20 years and has been widely accepted by the Earth Sciences' community. Despite
this, many oceanographers are reluctant to use ophiolite data. Their argument (and it comes
largely from the geological rather than geophysical oceanographers) is that 'Even if
ophiolites are on-land fragments of oceanic lithosphere, they must be atypical for otherwise
they would have been subducted and not obducted'. So they conclude that, although the
study of ophiolites is perfectly acceptable in its own right, its results should not be used in the
investigation of present-day, in-situ oceanic lithosphere--i.e, the invoking of 'reversed
uniformitarianism' is not acceptable. However using uniformitarian principles to interpret
ophiolites from present-day oceanic lithosphere studies is equally problematical for (i)
petrological/geochemical studies of ocean-floor rocks are based on widely spaced boreholes
of limited depth and dredge-haul sampling, (ii) geophysical data can only detect large-scale
phenomena and are open to various interpretations, and (iii) direct observations from
submersibles are still very limited. Such circumstances should have drawn the two groups of
workers closer together.
Anmerkung:
I. Nature and Formation of Oceanic Lithosphere ---
Magma Chambers: Products and Processes ---
J. A. Orcutt, M. Burnett, and J. S. McClain: Evolution of the ocean crust: results from recent seismic experiments / Geological Society, London, Special Publications, 13:7-16, doi:10.1144/GSL.SP.1984.013.01.01 ---
M. R. Fisk: Depths and temperatures of mid-ocean-ridge magma chambers and the composition of their source magmas / Geological Society, London, Special Publications, 13:17-23, doi:10.1144/GSL.SP.1984.013.01.02 ---
M. F. J. Flower: Spreading-rate parameters in ocean crust: analogue for ophiolite? / Geological Society, London, Special Publications, 13:25-40, doi:10.1144/GSL.SP.1984.013.01.03 ---
J. D. Smewing, N. I. Christensen, I. D. Bartholomew, and P. Browning: The structure of the oceanic upper mantle and lower crust as deduced from the northern section of the Oman ophiolite / Geological Society, London, Special Publications, 13:41-53, doi:10.1144/GSL.SP.1984.013.01.04 ---
R. T. Gregory: Melt percolation beneath a spreading ridge: evidence from the Semail peridotite, Oman / Geological Society, London, Special Publications, 13:55-62, doi:10.1144/GSL.SP.1984.013.01.05 ---
J. S. Pallister: Parent magmas of the Semail ophiolite, Oman / Geological Society, London, Special Publications, 13:63-70, doi:10.1144/GSL.SP.1984.013.01.06 ---
P. Browning: Cryptic variation within the Cumulate Sequence of the Oman ophiolite: magma chamber depth and petrological implications / Geological Society, London, Special Publications, 13:71-82, doi:10.1144/GSL.SP.1984.013.01.07 ---
D. Elthon, J. F. Casey, and S. Komor: Cryptic mineral-chemistry variations in a detailed traverse through the cumulate ultramafic rocks of the North Arm Mountain massif of the Bay of Islands ophiolite, Newfoundland / Geological Society, London, Special Publications, 13:83-97, doi:10.1144/GSL.SP.1984.013.01.08 ---
Fracture Zones ---
R. S. White: Atlantic oceanic crust: seismic structure of a slow-spreading ridge / Geological Society, London, Special Publications, 13:101-111, doi:10.1144/GSL.SP.1984.013.01.09 ---
J. M. Auzende, G. Ceuleneer, G. Cornen, T. Juteau, Y. Lagabrielle, G. Lensch, C. Mevel, A. Nicolas, H. Prichard, A. Ribeiro, E. Ruellan, and J. R. Vanney: Intraoceanic tectonism on the Gorringe Bank: observations by submersible / Geological Society, London, Special Publications, 13:113-120, doi:10.1144/GSL.SP.1984.013.01.10 ---
J. Honnorez, C. Mevel, and R. Montigny: Occurrence and significance of gneissic amphibolites in the Vema fracture zone, equatorial Mid-Atlantic Ridge / Geological Society, London, Special Publications, 13:121-130, doi:10.1144/GSL.SP.1984.013.01.11 ---
J. A. Karson: Variations in structure and petrology in the Coastal Complex, Newfoundland: anatomy of an oceanic fracture zone / Geological Society, London, Special Publications, 13:131-144, doi:10.1144/GSL.SP.1984.013.01.12 ---
Mantle Structures ---
A. Nicolas and M. Rabinowicz: Mantle flow pattern at oceanic spreading centres: relation with ophiolitic and oceanic structures / Geological Society, London, Special Publications, 13:147-151, doi:10.1144/GSL.SP.1984.013.01.13 ---
Lavas and Sediments ---
J. Malpas and G. Langdon: Petrology of the Upper Pillow Lava suite, Troodos ophiolite, Cyprus / Geological Society, London, Special Publications, 13:155-167, doi:10.1144/GSL.SP.1984.013.01.14 ---
J. F. Boyle and A. H. F. Robertson: Evolving metallogenesis at the Troodos spreading axis / Geological Society, London, Special Publications, 13:169-181, doi:10.1144/GSL.SP.1984.013.01.1---
Isotope Studies & Metamorphism ---
D. Elthon, J. R. Lawrence, R. E. Hanson, and C. Stern: Modelling of oxygen-isotope data from the Sarmiento ophiolite complex, Chile / Geological Society, London, Special Publications, 13:185-197, doi:10.1144/GSL.SP.1984.013.01.16 ---
D. S. Stakes, H. P. Taylor , jr, and R. L. Fisher: Oxygen-isotope and geochemical characterization of hydrothermal alteration in ophiolite complexes and modern oceanic crust / Geological Society, London, Special Publications, 13:199-214, doi:10.1144/GSL.SP.1984.013.01.17 ---
M. J. Thirlwall and B. J. Bluck: Sr-Nd isotope and chemical evidence that the Ballantrae ‘ophiolite’, SW Scotland, is polygenetic / Geological Society, London, Special Publications, 13:215-230, doi:10.1144/GSL.SP.1984.013.01.18 ---
M. A. Menzies: Chemical and isotopic heterogeneities in orogenic and ophiolitic peridotites / Geological Society, London, Special Publications, 13:231-240, doi:10.1144/GSL.SP.1984.013.01.19 ---
Zulfiqar Ahmed and A. Hall: Petrology and mineralization of the Sakhakot-Qila ophiolite, Pakistan / Geological Society, London, Special Publications, 13:241-252, doi:10.1144/GSL.SP.1984.013.01.20 ---
II. Emplacement (Obduction) of Ophiolites ---
Ophiolite Emplacement and Obduction ---
J. G. Spray: Possible causes and consequences of upper mantle decoupling and ophiolite displacement / Geological Society, London, Special Publications, 13:255-268, doi:10.1144/GSL.SP.1984.013.01.21 ---
J. F. Casey and J. F Dewey: Initiation of subduction zones along transform and accreting plate boundaries, triple-junction evolution, and forearc spreading centres—implications for ophiolitic geology and obduction / Geological Society, London, Special Publications, 13:269-290, doi:10.1144/GSL.SP.1984.013.01.22 ---
Y. Ogawa and J. Naka: Emplacement of ophiolitic rocks in forearc areas: Examples from central Japan and Izu-Mariana-Yap island arc system / Geological Society, London, Special Publications, 13:291-301, doi:10.1144/GSL.SP.1984.013.01.23 ---
M. P. Searle and R. K. Stevens: Obduction processes in ancient, modern and future ophiolites / Geological Society, London, Special Publications, 13:303-319, doi:10.1144/GSL.SP.1984.013.01.24 ---
N. H. Woodcock and A. H. F. Robertson: The structural variety in Tethyan ophiolite terrains / Geological Society, London, Special Publications, 13:321-330, doi:10.1144/GSL.SP.1984.013.01.25 ---
Regional Studies ---
H. Colley: An ophiolite suite in Fiji? / Geological Society, London, Special Publications, 13:333-340, doi:10.1144/GSL.SP.1984.013.01.26 ---
H. L. Davies and A. L. Jaques: Emplacement of ophiolite in Papua New Guinea / Geological Society, London, Special Publications, 13:341-349, doi:10.1144/GSL.SP.1984.013.01.27 ---
J. S. Milsom: The gravity field of the Marum ophiolite complex, Papua New Guinea / Geological Society, London, Special Publications, 13:351-357, doi:10.1144/GSL.SP.1984.013.01.28 ---
R. G. Coleman: Ophiolites and the tectonic evolution of the Arabian Peninsula / Geological Society, London, Special Publications, 13:359-366, doi:10.1144/GSL.SP.1984.013.01.29 ---
G. Wadge, G. Draper, and J. F. Lewis: Ophiolites of the northern Caribbean: A reappraisal of their roles in the evolution of the Caribbean plate boundary / Geological Society, London, Special Publications, 13:367-380, doi:10.1144/GSL.SP.1984.013.01.30 ---
B. A. Sturt, H. Furnes, and D. Roberts: A conspectus of Scandinavian Caledonian ophiolites / Geological Society, London, Special Publications, 13:381-391, doi:10.1144/GSL.SP.1984.013.01.31 ---
R. Hall: Ophiolites: Figments of Oceanic Lithosphere? / Geological Society, London, Special Publications, 13:393-403, doi:10.1144/GSL.SP.1984.013.01.32 ---
D. A. Rothery: The role of Landsat Multispectral Scanner (MSS) imagery in mapping the Oman ophiolite / Geological Society, London, Special Publications, 13:405-413, doi:10.1144/GSL.SP.1984.013.01.33
In:
Special publications / the Geological Society, London, Volume 13
Weitere Ausg.:
Druckausgabe Ophiolites and oceanic lithosphere
Sprache:
Englisch
Schlagwort(e):
Aufsatzsammlung
;
Electronic books
URL:
https://doi.org/10.1144/GSL.SP.1984.013.01.01
