Ohlendorf, Christian; Gebhardt, Andrea Catalina (2020): Smear-slide description of sediment core MSM84_42-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.918226
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Published: 2020-06-02 • DOI registered: 2020-07-01
Related to:
Gebhardt, Andrea Catalina; Ohlendorf, Christian; Gross, Felix; Matthiessen, Jens; Schneider, Ralph R (2020): Development of the Labrador Shelf During the Past Glaciations, Cruise No. MSM84, June 19 to July 16, 2019, St. John's (Canada) - St. John's (Canada). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM84, 78 pp, https://doi.org/10.2312/cr_msm84
Project(s):
Coverage:
Latitude: 55.925220 * Longitude: -58.651080
Date/Time Start: 2019-07-09T02:12:00 * Date/Time End: 2019-07-09T02:12:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.340 m
Event(s):
MSM84_42-1 * Latitude: 55.925220 * Longitude: -58.651080 * Date/Time: 2019-07-09T02:12:00 * Elevation: -548.8 m * Campaign: MSM84 (LABRADOR-GLACIALS) * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
Comment:
Smear slides were prepared using standard glass slides. From the freshly cut core surface, small samples were taken with a tooth pick. Two drops of tap water were added and a homogenous suspension was prepared on the glass slide. One drop of Norland optical cement was placed onto the the dry sediment layer, and the sample was covered with a glass slip. The resin was cured in a UV chamber for 2 minutes. Inspection was done with a petrographic polarizing microscope.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Gebhardt, Andrea Catalina | Geocode – Sediment depth where smear slides (SS) have been prepared | |
| 2 | Grain size, maximum | Grain size max | µm | Gebhardt, Andrea Catalina | Smear slide analysis | Size estimates were made with the scale that is visible in the ocular considering the different magnifications |
| 3 | Size fraction > 0.040 mm | >40 µm | % | Gebhardt, Andrea Catalina | Smear slide analysis | Size estimates were made with the scale that is visible in the ocular considering the different magnifications |
| 4 | Size fraction < 0.005 mm | <5 µm | % | Gebhardt, Andrea Catalina | Smear slide analysis | Size estimates were made with the scale that is visible in the ocular considering the different magnifications |
| 5 | Sorting description | Sort descr | Gebhardt, Andrea Catalina | Smear slide analysis | Qualitative estimates of texture are given on the scale: 0 = poor 1 = moderate, 2 = well, 3 = very well | |
| 6 | Roundness description | Roundness | Gebhardt, Andrea Catalina | Smear slide analysis | Qualitative estimates of texture are given on the scale: 0 = poor 1 = moderate, 2 = well, 3 = very well | |
| 7 | Quartz | Qz | Gebhardt, Andrea Catalina | Smear slide analysis | clastic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 8 | Feldspar | Fsp | Gebhardt, Andrea Catalina | Smear slide analysis | clastic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 9 | Opaque minerals | Opaque | Gebhardt, Andrea Catalina | Smear slide analysis | clastic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 10 | Minerals, other | Minerals oth | Gebhardt, Andrea Catalina | Smear slide analysis | clastic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 11 | Carbonates | Carb | Gebhardt, Andrea Catalina | Smear slide analysis | authigenic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 12 | Pyrite | Py | Gebhardt, Andrea Catalina | Smear slide analysis | authigenic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 13 | Opal | Opal | Gebhardt, Andrea Catalina | Smear slide analysis | authigenic, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 14 | Organic matter, amorphous | AOM | Gebhardt, Andrea Catalina | Smear slide analysis | organics, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 15 | Biologic remains | Biol remains | Gebhardt, Andrea Catalina | Smear slide analysis | identified, organics, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 16 | Foraminifera | Foram | Gebhardt, Andrea Catalina | Smear slide analysis | shells, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 17 | Diatoms, centrales | Diatom cen | Gebhardt, Andrea Catalina | Smear slide analysis | shells, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 18 | Diatoms, pennales | Diatom pen | Gebhardt, Andrea Catalina | Smear slide analysis | shells, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 19 | Dinoflagellate cyst | Dinofl cyst | Gebhardt, Andrea Catalina | Smear slide analysis | shells, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 20 | Bivalvia | Bivalvia | Gebhardt, Andrea Catalina | Smear slide analysis | shells, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 21 | Sponge spiculae | Sponge spic | Gebhardt, Andrea Catalina | Smear slide analysis | shells, amount estimates are given as volume percentages with the scale: 0 = none, 1 = small amounts (up to 25%), 2 = medium amounts (up to 50%), 3 = large amounts (up to 75%), 4 = all | |
| 22 | Comment | Comment | Gebhardt, Andrea Catalina | Smear slide analysis |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
63 data points
Data
| 1 Depth sed [m] | 2 Grain size max [µm] | 3 >40 µm [%] | 4 <5 µm [%] | 5 Sort descr | 6 Roundness | 7 Qz | 8 Fsp | 9 Opaque | 10 Minerals oth | 11 Carb | 12 Py | 13 Opal | 14 AOM | 15 Biol remains | 16 Foram | 17 Diatom cen | 18 Diatom pen | 19 Dinofl cyst | 20 Bivalvia | 21 Sponge spic | 22 Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.005 | 80 | 10 | 30 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | fine grained (<10µm) carbonates |
| 0.150 | 80 | 10 | 30 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | fine grained (<10µm) carbonates |
| 0.340 | 60 | 5 | 40 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | fine grained (<10µm) carbonates |