(Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170
The grain sizes of gas hydrate crystallites are largely unknown in natural samples. Single grains are hardly detectable with electron or optical microscopy. For the first time, we have used high-energy synchrotron diffraction to determine grain sizes of six natural gas hydrates retrieved from the Bu...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA - Data Publisher for Earth & Environmental Science
2009
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.771431 https://doi.pangaea.de/10.1594/PANGAEA.771431 |
id |
ftdatacite:10.1594/pangaea.771431 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.771431 2023-05-15T17:12:11+02:00 (Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 Klapp, Stephan A Klein, Helmut Kuhs, Werner F 2009 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.771431 https://doi.pangaea.de/10.1594/PANGAEA.771431 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1144/sp319.13 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Event label Latitude of event Longitude of event Elevation of event Sample code/label DEPTH, sediment/rock Comment Crystal size Standard deviation Drilling/drill rig Television-Grab Location scan method Leg204 SO174/2 Joides Resolution Sonne Center for Marine Environmental Sciences MARUM Supplementary Dataset dataset Dataset 2009 ftdatacite https://doi.org/10.1594/pangaea.771431 https://doi.org/10.1144/sp319.13 2022-02-08T16:02:21Z The grain sizes of gas hydrate crystallites are largely unknown in natural samples. Single grains are hardly detectable with electron or optical microscopy. For the first time, we have used high-energy synchrotron diffraction to determine grain sizes of six natural gas hydrates retrieved from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon from varying depth between 1 and 101 metres below seafloor. High-energy synchrotron radiation provides high photon fluxes as well as high penetration depth and thus allows for investigation of bulk sediment samples. Gas hydrate grain sizes were measured at the Beam Line BW 5 at the HASYLAB/Hamburg. A 'moving area detector method', originally developed for material science applications, was used to obtain both spatial and orientation information about gas hydrate grains within the sample. The gas hydrate crystal sizes appeared to be (log-)normally distributed in the natural samples. All mean grain sizes lay in the range from 300 to 600 µm with a tendency for bigger grains to occur in greater depth. Laboratory-produced methane hydrate, aged for 3 weeks, showed half a log-normal curve with a mean grain size value of c. 40 µm. The grains appeared to be globular shaped. Dataset Methane hydrate DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Event label Latitude of event Longitude of event Elevation of event Sample code/label DEPTH, sediment/rock Comment Crystal size Standard deviation Drilling/drill rig Television-Grab Location scan method Leg204 SO174/2 Joides Resolution Sonne Center for Marine Environmental Sciences MARUM |
spellingShingle |
Event label Latitude of event Longitude of event Elevation of event Sample code/label DEPTH, sediment/rock Comment Crystal size Standard deviation Drilling/drill rig Television-Grab Location scan method Leg204 SO174/2 Joides Resolution Sonne Center for Marine Environmental Sciences MARUM Klapp, Stephan A Klein, Helmut Kuhs, Werner F (Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 |
topic_facet |
Event label Latitude of event Longitude of event Elevation of event Sample code/label DEPTH, sediment/rock Comment Crystal size Standard deviation Drilling/drill rig Television-Grab Location scan method Leg204 SO174/2 Joides Resolution Sonne Center for Marine Environmental Sciences MARUM |
description |
The grain sizes of gas hydrate crystallites are largely unknown in natural samples. Single grains are hardly detectable with electron or optical microscopy. For the first time, we have used high-energy synchrotron diffraction to determine grain sizes of six natural gas hydrates retrieved from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon from varying depth between 1 and 101 metres below seafloor. High-energy synchrotron radiation provides high photon fluxes as well as high penetration depth and thus allows for investigation of bulk sediment samples. Gas hydrate grain sizes were measured at the Beam Line BW 5 at the HASYLAB/Hamburg. A 'moving area detector method', originally developed for material science applications, was used to obtain both spatial and orientation information about gas hydrate grains within the sample. The gas hydrate crystal sizes appeared to be (log-)normally distributed in the natural samples. All mean grain sizes lay in the range from 300 to 600 µm with a tendency for bigger grains to occur in greater depth. Laboratory-produced methane hydrate, aged for 3 weeks, showed half a log-normal curve with a mean grain size value of c. 40 µm. The grains appeared to be globular shaped. |
format |
Dataset |
author |
Klapp, Stephan A Klein, Helmut Kuhs, Werner F |
author_facet |
Klapp, Stephan A Klein, Helmut Kuhs, Werner F |
author_sort |
Klapp, Stephan A |
title |
(Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 |
title_short |
(Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 |
title_full |
(Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 |
title_fullStr |
(Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 |
title_full_unstemmed |
(Table 1) Crystal sizes of measured samples from the Bush Hill region in the Gulf of Mexico and from ODP Leg 204 at the Hydrate Ridge offshore Oregon, supplement to: Klapp, Stephan A; Klein, Helmut; Kuhs, Werner F (2009): Gas hydrate crystallite size investigations with high-energy synchrotron radiation. In: Long, D; Lovell, MA; Rees, JG; Rochelle, CA (eds.) Sediment-Hosted Gas Hydrates: New Insights on Natural and Synthetic Systems. The London Geological Society, London, Special Publications, London, 319, 161-170 |
title_sort |
(table 1) crystal sizes of measured samples from the bush hill region in the gulf of mexico and from odp leg 204 at the hydrate ridge offshore oregon, supplement to: klapp, stephan a; klein, helmut; kuhs, werner f (2009): gas hydrate crystallite size investigations with high-energy synchrotron radiation. in: long, d; lovell, ma; rees, jg; rochelle, ca (eds.) sediment-hosted gas hydrates: new insights on natural and synthetic systems. the london geological society, london, special publications, london, 319, 161-170 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.771431 https://doi.pangaea.de/10.1594/PANGAEA.771431 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
https://dx.doi.org/10.1144/sp319.13 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.771431 https://doi.org/10.1144/sp319.13 |
_version_ |
1766068977394515968 |