van der Meer, Jaap; Hiemstra, John F (1998): Micromorphological observations in the Miocene section of sediment core CRP-1 (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.438922, Supplement to: van der Meer, J; Hiemstra, JF (1998): Micromorphology of Miocene diamicts, indications of grounded ice. Terra Antartica, 5(3), 363-366, hdl:10013/epic.28320.d001
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Abstract:
Five samples of diamicts from different levels of the Miocene part of the CRP-1 core have been thin sectioned. Observations in the thin sections relate to texture, diagenesis, structure and plasmic fabric. The combination of observed microstructures leads to the interpretation that three samples are certainly indicative of grounded ice, e.g. they are basal tills, whilst the other two samples also possibly represent the same environment.
Project(s):
Cape Roberts Project (CRP)
Coverage:
Latitude: -77.007580 * Longitude: 163.755080
Date/Time Start: 1997-10-17T01:30:00 * Date/Time End: 1997-10-24T02:00:00
Minimum DEPTH, sediment/rock: 63.05 m * Maximum DEPTH, sediment/rock: 134.45 m
Event(s):
CRP-1 (16 km ENE Cape Roberts) * Latitude: -77.007580 * Longitude: 163.755080 * Date/Time Start: 1997-10-17T01:30:00 * Date/Time End: 1997-10-24T02:00:00 * Elevation: -153.5 m * Penetration: 132.06 m * Recovery: 113.32 m * Location: off Cape Roberts, Ross Sea, Antarctica * Campaign: CRP-1 * Basis: Sampling/drilling ice * Method/Device: Core wireline system (CWS) * Comment: sea ice thickness: 1.60 m, recovery 86 %. Age and lithology of oldest strata: 22-24 Ma; mudstone with scattered pebbles.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Texture | Texture | van der Meer, Jaap | Thin section analysis/measurements | ||
| 3 | Clay | Clay | van der Meer, Jaap | Thin section analysis/measurements | ||
| 4 | Diagenesis | Diagenesis | van der Meer, Jaap | Thin section analysis/measurements | ||
| 5 | Structure | Structure | van der Meer, Jaap | Thin section analysis/measurements | rotational | |
| 6 | Structure | Structure | van der Meer, Jaap | Thin section analysis/measurements | linear | |
| 7 | Structure | Structure | van der Meer, Jaap | Thin section analysis/measurements | comet | |
| 8 | Structure | Structure | van der Meer, Jaap | Thin section analysis/measurements | unistrial | |
| 9 | Structure | Structure | van der Meer, Jaap | Thin section analysis/measurements | omnisepic + unistrial (in intraclasts) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
27 data points
Data
| 1 Depth sed [m] | 2 Texture | 3 Clay | 4 Diagenesis | 5 Structure (rotational) | 6 Structure (linear) | 7 Structure (comet) | 8 Structure (unistrial) | 9 Structure (omnisepic + unistrial (in int...) |
|---|---|---|---|---|---|---|---|---|
| 63.05 | rare | abundant | abundant | rare | ||||
| 78.99 | common | common | rare | abundant | rare | rare | common | |
| 105.58 | common | rare/common | rare | rare | ||||
| 123.25 | common | common | common | abundant | rare | rare | common | |
| 134.45 | common | common | abundant | common | rare |