Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Day-Stirrat, Ruarri J; Flemings, Peter B; You, Yao; Aplin, Andrew C; van der Pluijm, Ben A (2012): Physical properties and bulk minerals from IODP Holes 308-U1322B, U1322D and U1324B. PANGAEA, https://doi.org/10.1594/PANGAEA.787956, Supplement to: Day-Stirrat, RJ et al. (2012): The fabric of consolidation in Gulf of Mexico mudstones. Marine Geology, 295-298, 77-85, https://doi.org/10.1016/j.margeo.2011.12.003

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
How the micro-scale fabric of clay-rich mudstone evolves during consolidation in early burial is critical to how they are interpreted in the deeper portions of sedimentary basins. Core samples from the Integrated Ocean Drilling Program Expedition 308, Ursa Basin, Gulf of Mexico, covering seafloor to 600 meters below sea floor (mbsf) are ideal for studying the micro-scale fabric of mudstones. Mudstones of consistent composition and grain size decrease in porosity from 80% at the seafloor to 37% at 600 mbsf. Argon-ion milling produces flat surfaces to image this pore evolution over a vertical effective stress range of 0.25 (71 mbsf) to 4.05 MPa (597 mbsf). With increasing burial, pores become elongated, mean pore size decreases, and there is preferential loss of the largest pores. There is a small increase in clay mineral preferred orientation as recorded by high resolution X-ray goniometry with burial.
Coverage:
Median Latitude: 28.001500 * Median Longitude: -89.001337 * South-bound Latitude: 28.001329 * West-bound Longitude: -89.002318 * North-bound Latitude: 28.001660 * East-bound Longitude: -89.000417
Size:
2 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding: