U-Pb dating of stockwork zircons from the eastern Iberian Pyrite Belt
U-Pb dating of stockwork zircons from the eastern Iberian Pyrite Belt
Zircons found in the stockwork zones of the massive sulphide Los Frailes deposit, Iberian Pyrite Belt, are interpreted to have grown during the hydro-thermal alteration of host felsic volcanic rocks. Ion microprobe (SHRIMP) dating gives a206Pb/238 U age of 345.7 ± 4.6 Ma (2?) and together with published spore data from the deposit suggest an age of uppermost Devonian to lowermost Carboniferous. Stockwork zircons offer the possibility of precisely defining the emplacement ages of these giant sulphide accumulations over the whole Pyrite Belt and from this will emerge estimates of the thermal budget necessary to generate the deposits.
Iberian Pyrite Belt, Devonian, SHRIMP, hydrothermal processes, zircons
7-10
Nesbitt, R.W.
6a124ad1-4e6d-4407-b92f-592f7fd682e4
Pascual, E.
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Fanning, C.M.
e0e22ef4-2218-464c-a64b-715840a0c191
Toscano, M.
9c9b6a95-3e8f-41cd-9a41-09b169fbf2af
Saez, R.
0290afca-a0f0-467c-8363-5d74290df671
Almodovar, G.R.
b8dde931-f181-4085-94f8-e8d7ae28ccc0
1999
Nesbitt, R.W.
6a124ad1-4e6d-4407-b92f-592f7fd682e4
Pascual, E.
3af2af36-74d3-4ee8-a6a6-ae2a1490c5e2
Fanning, C.M.
e0e22ef4-2218-464c-a64b-715840a0c191
Toscano, M.
9c9b6a95-3e8f-41cd-9a41-09b169fbf2af
Saez, R.
0290afca-a0f0-467c-8363-5d74290df671
Almodovar, G.R.
b8dde931-f181-4085-94f8-e8d7ae28ccc0
Nesbitt, R.W., Pascual, E., Fanning, C.M., Toscano, M., Saez, R. and Almodovar, G.R.
(1999)
U-Pb dating of stockwork zircons from the eastern Iberian Pyrite Belt.
Journal of the Geological Society, 156 (1), .
(doi:10.1144/gsjgs.156.1.0007).
Abstract
Zircons found in the stockwork zones of the massive sulphide Los Frailes deposit, Iberian Pyrite Belt, are interpreted to have grown during the hydro-thermal alteration of host felsic volcanic rocks. Ion microprobe (SHRIMP) dating gives a206Pb/238 U age of 345.7 ± 4.6 Ma (2?) and together with published spore data from the deposit suggest an age of uppermost Devonian to lowermost Carboniferous. Stockwork zircons offer the possibility of precisely defining the emplacement ages of these giant sulphide accumulations over the whole Pyrite Belt and from this will emerge estimates of the thermal budget necessary to generate the deposits.
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Published date: 1999
Keywords:
Iberian Pyrite Belt, Devonian, SHRIMP, hydrothermal processes, zircons
Organisations:
Geochemistry
Identifiers
Local EPrints ID: 361629
URI: http://eprints.soton.ac.uk/id/eprint/361629
ISSN: 0016-7649
PURE UUID: b9c8474f-d1ad-4b79-b9f1-ea2db0ac46d1
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Date deposited: 28 Jan 2014 11:50
Last modified: 14 Mar 2024 15:54
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Contributors
Author:
R.W. Nesbitt
Author:
E. Pascual
Author:
C.M. Fanning
Author:
M. Toscano
Author:
R. Saez
Author:
G.R. Almodovar
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