Figures and Tables : Short-lived orogenic cycles and the eclogitization of cold crust by spasmodic hot fluids : Nature

From the following article:

Short-lived orogenic cycles and the eclogitization of cold crust by spasmodic hot fluids

Alfredo Camacho, James K. W. Lee, Bastiaan J. Hensen & Jean Braun

Nature 435, 1191-1196(30 June 2005)

doi:10.1038/nature03643

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Figure 1

Geological map of Holsnøy island, northwest of Bergen, western Norway.

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Figure 2

⁴⁰Ar–³⁹Ar release spectra for two step-heated amphibole aliquots of different grain size from the Alvfjellet lens (sample Alv6) on Holsnøy island.

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Figure 3

⁴⁰Ar–³⁹Ar release spectra for step-heated phlogopite from the Alvfjellet (Alv6; Alv7) and Hundskjeften (Hunds14) lenses on Holsnøy island.

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Figure 4

Cumulative probability diagram of integrated ⁴⁰Ar–³⁹Ar ages for phlogopite from the Alvfjellet lens.

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Figure 5

Apparent ⁴⁰Ar–³⁹Ar age versus distance profiles across phlogopite from Alv6, Alv7 and Hunds14.

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Figure 6

Relationship between time and temperature required for a 300-m-diameter amphibole grain and a 1,500-m-diameter phlogopite grain to incorporate 3.97 vol.% and 20 vol.% ⁴⁰Ar_E, respectively.

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Figure 7

Modelled pressure–temperature–time path for the Lindås nappe, Bergen arcs.

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