Porosity contributions of radiolarians in ODP Site 110-671 and Hole 110-672A sediments
| Cobertura |
MEDIAN LATITUDE: 15.533450 * MEDIAN LONGITUDE: -58.686825 * SOUTH-BOUND LATITUDE: 15.525800 * WEST-BOUND LONGITUDE: -58.732800 * NORTH-BOUND LATITUDE: 15.540000 * EAST-BOUND LONGITUDE: -58.641000 * DATE/TIME START: 1986-06-28T12:45:00 * DATE/TIME END: 1986-07-22T12:15:00 |
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| Data(s) |
30/08/2000
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| Resumo |
This study quantitatively addresses the significance of porosity within radiolarian tests in the décollement zone at the toe of the northern Barbados accretionary prism. Quantification was accomplished using scanning electron microscope images of core samples taken from Ocean Drilling Program (ODP) Sites 671 and 672, representing the décollement and proto-décollement, respectively. The décollement is localized to a radiolarian claystone, and its depth correlates with a low-density anomaly that has been attributed to high porosity at all relevant ODP drilling sites in the area (Moore, Klaus, et al., 1998, doi:10.2973/odp.proc.ir.171A.1998; Shipley, Ogawa, Blum, et al., 1995, doi:10.2973/odp.proc.ir.153.1995; Mascle, Moore, et al., 1988, doi:10.2973/odp.proc.ir.110.1988). Porosity in the décollement zone is presumably lost between Sites 672 and 671 because of shear enhanced consolidation (Moore et al., 1998, doi:10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2). |
| Formato |
application/zip, 2 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.788081 doi:10.1594/PANGAEA.788081 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Wallace, Glen S (2000): Data report: Quantitative image analysis of relative porosity contributions in the décollement and proto-décollement, northern Barbados accretionary prism. In: Moore, JC; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 171A, 1-19, doi:10.2973/odp.proc.sr.171A.102.2000 |
| Palavras-Chave | #% area of radiolarian-related porosity; average % area of radiolarian-related porosity; Depth; DEPTH, sediment/rock; Event; Label; mbsf; Ocean Drilling Program; ODP; ODP sample designation; pixel # of not radiolarian-related porosity; pixel # of radiolarian-related porosity; Por descr; Porosity description; Sample code/label |
| Tipo |
Dataset |
