Skip to main content
  1. ScienceBase Catalog
  2. USGS Data Release Products
  3. Dependence of sedimentation behavior on pore-fluid chemistry for sediment collected offshore South Korea during the Second Ulleung Basin Gas Hydrate Expedition, UBGH2

Dependence of sedimentation behavior on pore-fluid chemistry for sediment collected offshore South Korea during the Second Ulleung Basin Gas Hydrate Expedition, UBGH2

Dates

Publication Date
Start Date
2010-07-09
End Date
2010-09-30

Citation

Jang, J., Stern, L.A., Waite, W.F., Cao, S.C., Jung, J., and Lee, J.Y., 2020, Dependence of sedimentation behavior on pore-fluid chemistry for sediment collected offshore South Korea during the Second Ulleung Basin Gas Hydrate Expedition, UBGH2: U.S. Geological Survey data release, https://doi.org/10.5066/P9UJOYVR.

Summary

One goal of Korea’s second Ulleung Basin Gas Hydrate Expedition, UBGH2, is to examine geotechnical properties of the marine sediment associated with methane gas hydrate occurrences found offshore eastern Korea in the Ulleung Basin, East Sea. Methane gas hydrate is a naturally occurring crystalline solid that sequesters methane in individual molecular cages formed by a lattice of water molecules. Offshore Korea, gas hydrate is found in thin, coarse-grained sediment layers that are interbedded with fine-grained sediment. Methane gas hydrate is a potential energy resource, but whether extracting methane from gas hydrate in these layered marine environments is technically and economically viable remains an open research topic as of 2019. [...]

Contacts

Point of Contact :
Junbong Jang
Originator :
Junbong Jang, Laura A Stern, William F Waite, Shuang C. Cao, Jongwon Jung, Joo Yong Lee
Publisher :
U.S. Geological Survey
SDC Data Owner :
Woods Hole Coastal and Marine Science Center
USGS Mission Area :
Natural Hazards
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

UBGH2_SedimentationRate_Metadata.xml
“CSDGM metadata.”
Original FGDC Metadata
View 		43.04 KB application/fgdc+xml
UBGH2_Sedimentation_BrowseGraphic.png
“Four sediment settling tubes at the end of the sedimentation test for UBGH2-6C-6” 		thumbnail 476.06 KB image/png
UBGH2_Sedimentation_Data.csv
“Data in CSV format.” 		10.11 KB text/csv
UBGH2_Sedimentation_Data.xlsx
“Data in XLSX format.” 		16.09 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
UBGH2_Sedimentation_ExamplePlot.png
“Sedimentation dependence on pore fluid chemistry for UBGH2-6C-6P.” 		thumbnail 132.78 KB image/png

Purpose

As sediment settles in fluid, one or more fluid-sediment interfaces tend to form and move over time. Tracking the position of the accumulated and depositional interfaces (defined in the attribute labels below and in the browse graphic) over time in different fluids yield insights into the dependence of interparticle interactions on fluid chemistry. Sedimentation data contained in this report include UBGH2 sediment specimens collected from fine-grained intervals interbedded within coarser-grained, gas hydrate-bearing layers, as well as from the underlying fine-grained seal sediment. Additionally, pore fluid chemistry is varied to reveal sediment behavior trends, particularly with regard to the pore-fluid freshening that will occur if methane is extracted as an energy resource from gas hydrates hosted by these reservoir sediments in situ.
Four sediment settling tubes at the end of the sedimentation test for UBGH2-6C-6
Four sediment settling tubes at the end of the sedimentation test for UBGH2-6C-6

Map

Map Preview

Communities

  • USGS Data Release Products

Tags

Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9UJOYVR

Item Actions

View Item as ...

JSON ATOM ISO XML

Save Item as ...

JSON FGDC MODS XML ISO XML

View Item...

Metrics