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A Deep Seismic Study of the Amazon Cone: Implications for the Strength of the Extended Continental Lithosphere - Discovery Cruise 275

Publisher
British Geological Survey (BGS)
Updated
13 August 2026
Topic
Not set
Licence
Not set

Summary

PROJECT DETAILS ONLY - NO DATA. Marine geophysical survey of the NE BRazil and French Guiana continental margin onboard RRS Discovery (D275). The Amazon Cone is a deep-sea fan system that developed on a continental margin approximately 90-100 Myr following a rifting event. Gravity and flexure modelling suggest that the Cone sediments have loaded the margin almost to the limits of its strength. The investigators propose to carry out the first seismic refraction experiment to determine the structure of the crust and mantle that has been deformed by the Cone load. The experiment will provide new constraints on the structure, the nature of the ocean-continental boundary, the thermal and mechanical properties, and the resource potential of deep-water continental margins.

Data links

Link Format Preview Updated
Grant Award Details 13/8/2026

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Additional information

Source Metadata
XML, HTML
Date added
12 August 2026
Harvest GUID
9df8df52-d712-37a8-e044-0003ba9b0d98
Extent (Latitude)
10.0000° to -4.0000°
Extent (Longitude)
-54.0000° to -38.0000°
Dataset reference date (creation)
2009-06-26
Frequency of update
notApplicable
Access constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Responsible party
University of Oxford (pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng

Contact

Enquiries

tony@earth.ox.ac.uk

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