Expedition 357 Scientists (2017): Description of lithologic section units of IODP Hole 357-M0068A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.872027
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Related to:
Frueh-Green, Gretchen L; Orcutt, Beth N; Green, Sophie; Cotterill, Carol; Expedition 357 Scientists (2016): Atlantis Massif Serpentinization and Life. International Ocean Discovery Program Preliminary Report, International Ocean Discovery Program, https://doi.org/10.14379/iodp.pr.357.2016
Further details:
Project(s):
Coverage:
Latitude: 30.124880 * Longitude: -42.095720
Date/Time Start: 2015-11-06T00:00:00 * Date/Time End: 2015-11-06T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.000 m
Event(s):
357-M0068A (AM-02A) * Latitude: 30.124880 * Longitude: -42.095720 * Date/Time: 2015-11-06T00:00:00 * Elevation: -1102.7 m * IGSN: IBCR0357EH90001 * Location: Atlantis Massif * Campaign: Exp357 * Basis: James Cook * Comment: RD2: 03:56 on seabed -- 08:45 back on deck; CTD: 30 7.515N / 42 5.748 (bottom)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Expedition 357 Scientists | DSDP/ODP/IODP sample designation | ||
| 2 | Lithologic unit/sequence | Unit | Expedition 357 Scientists | Visual description | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Expedition 357 Scientists | Geocode | |
| 4 | Rock type | Rock | Expedition 357 Scientists | Visual description | ||
| 5 | Main Lithology | Main lith | Expedition 357 Scientists | Visual description | ||
| 6 | Lithology/composition/facies | Lithology | Expedition 357 Scientists | Visual description | ||
| 7 | Lithology/composition/facies | Lithology | Expedition 357 Scientists | Visual description | Continuation 1 | |
| 8 | Lithology/composition/facies | Lithology | Expedition 357 Scientists | Visual description | Continuation 2 | |
| 9 | Lithology/composition/facies | Lithology | Expedition 357 Scientists | Visual description | Continuation 3 | |
| 10 | Comment | Comment | Expedition 357 Scientists | Visual description | ||
| 11 | Structure | Structure | Expedition 357 Scientists | Visual description | Fracture and foliation | |
| 12 | Structure | Structure | Expedition 357 Scientists | Visual description | Veins | |
| 13 | Minerals | Minerals | Expedition 357 Scientists | Visual description | ||
| 14 | Texture | Texture | Expedition 357 Scientists | Visual description | ||
| 15 | Alteration | Alteration | Expedition 357 Scientists | Visual description |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
14 data points
Data
| 1 Sample label (DSDP/ODP/IODP sample designation) | 2 Unit (Visual description) | 3 Depth sed [m] | 4 Rock (Visual description) | 5 Main lith (Visual description) | 6 Lithology (Visual description) | 7 Lithology (Continuation 1, Visual descri...) | 8 Lithology (Continuation 2, Visual descri...) | 9 Lithology (Continuation 3, Visual descri...) | 10 Comment (Visual description) | 11 Structure (Fracture and foliation, Visua...) | 12 Structure (Veins, Visual description) | 13 Minerals (Visual description) | 14 Texture (Visual description) | 15 Alteration (Visual description) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 357-M0068A-1R-1,0 | 1 | 0.000 | Metamorphic/Fault Rock | Talc-amphibole schist | Several pieces, from <1cm to 11cm. Rocks are variably foliated and deformed talc-amphibole schists, with altered serpentine clasts. Interval 0-12cm: comprises several fragments, two of which are cut. One has well developed foliation with sigmoidal | structure. Another cut piece is fine-grained with several pale-green, irregular veins with random orientation. Interval 12-21cm: MBIO sample. Interval 21-34cm: shows lithological banding on the cut surface that corresponds to a steep, irregular | foliation. The lower part of the piece is very similar to the foliated fragments in the uppermost interval. The thin section suggests a highly foliated talc-rich rock with alternating highly deformed intervals that contain amp and chl, and intervals | with static talc growth possibly replacing serpentine clasts. Thin section at 34-35cm is a tremolite-chlorite schist containing a zircon grain and strongly overprinted by static talc. Semi-quant XRD: 34-35cm - amph (44), talc (20), chl (15), clays (8) | Rubble, no core coherence. Could correspond to mass wasting. | Structures: Open fractures=0 -- No open fractures; Veins=3 -- 5-10 per 10cm; Cataclastic deformation=2 -- Moderate fracturing | Veins: Shape=1 -- Straight/planar; Shape=3 --Irregular; Connectivity=4 -- Network; Connectivity=6 -- Cross cutting; Structure=1 -- Uniform | Minerals: Amphibole; Chlorite; Magnetite; Oxides; Serpentine; Talc; Tremolite | Fine-grained | Very high alteration |