Comment
Article Abstract:
A comment on A. Soesoo et al.'s paper entitled 'Divergent double subduction: tectonic and petrological consequences' is presented. Soesoo et al. focused on the Victorian part of the Lachlan fold belt to explain their proposed tectonic model. However, the existence of the western subduction zone necessary to the model is doubtful based on detailed structural mapping, igneous rock distribution, and sedimentary provenance and facies. Likewise, the geochronological evidence used to illustrate the belts of diachronous deformation does not concur with Soesoo et al.'s explanation of subduction.
Publication Name: Geology
Subject: Earth sciences
ISSN: 0091-7613
Year: 1998
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Article Abstract:
A response to G. O'Halloran and S. Bryan's and R. Cayley and D. Taylor's comments on a paper entitled 'Divergent double subduction: tectonic and petrological consequences' is presented. Both comments, which focus on the Lachlan fold belt, ignore recent zircon provenance evidence that shows that the sediments originate from the Delamirian-Ross orogen and not from the westward craton. The commenters' arguments on the existence or non-existence of a tectonic event are not clear because their geological observations were based on isolated evidence and were taken out of context.
Publication Name: Geology
Subject: Earth sciences
ISSN: 0091-7613
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Comment
Article Abstract:
A comment on A. Soesoo et al.'s paper entitled 'Divergent double subduction: tectonic and petrologic consequences' is presented. The tectonic model proposed by Soesoo et al. involves three subduction zones to illustrate the different structural vergences across the Lachlan fold belt of southeast Australia. However, the absence of volcaniclastic detritus does not support the existence of the proposed marginal basin. In addition, the magmatic data is devoid of the geochemical features of subduction-related magmatic activity.
Publication Name: Geology
Subject: Earth sciences
ISSN: 0091-7613
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
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