We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
Published online by Cambridge University Press: 14 October 2009
The importance of gas in transmitting, marking and altering sediments and of its traces as clues to depositional, paleo-ecological and diagenetic history is not generally appreciated.
Cloud, 1960Gas generated beneath the seabed is buoyant, and tends to migrate towards the surface. Geological conditions may impede its progress, so shallow gas accumulations are formed. The exact nature of these accumulations depends on the type of sediment they are held in. Also, in certain pressure and temperature conditions, migrating gas may be sequestered by the formation of gas hydrates. Evidence is provided by various forms of acoustic signal recorded on seismic profiles, and is supported by the results of drilling, as well as the occurrence of natural gas seeps at the seabed.
Gas beneath the seabed is not a geological curiosity, but is common-place and widespread.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.
