Full text loading...
-
3-D Images of a Large Pockmark from the Chatham Rise, New Zealand
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 75th EAGE Conference & Exhibition - Workshops, Jun 2013, cp-349-00009
- ISBN: 978-90-73834-49-1
Abstract
Pockmarks have been observed on the Chatham Rise east of New Zealand over an area of >20,000 km2. Their formation has been linked primarily to gas hydrate dissociation during glacial-stage sealevel lowstands. We here show first images from a recent high-resolution 3D seismic images targeting the sub-surface structure of a giant pockmarks. Results show in particular that the pockmark may be underlain by a large gas chimney.