Expedition 357 Scientists (2017): Description of lithologic section units of IODP Hole 357-M0070C [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.872032
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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: 30.142400 * Longitude: -42.136570
Date/Time Start: 2015-11-22T00:00:00 * Date/Time End: 2015-11-23T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 3.910 m
Event(s):
357-M0070C (AM-07A) * Latitude: 30.142400 * Longitude: -42.136570 * Date/Time Start: 2015-11-22T00:00:00 * Date/Time End: 2015-11-23T00:00:00 * Elevation: -1140.5 m * IGSN: IBCR0357EHZ0001 * Location: Atlantis Massif * Campaign: Exp357 * Basis: James Cook * Comment: MeBo
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 | Comment | Comment | Expedition 357 Scientists | Visual description | ||
| 10 | Structure | Structure | Expedition 357 Scientists | Visual description | Fracture and foliation | |
| 11 | Structure | Structure | Expedition 357 Scientists | Visual description | Veins | |
| 12 | Structure | Structure | Expedition 357 Scientists | Visual description | Fracture morphology | |
| 13 | Minerals | Minerals | Expedition 357 Scientists | Visual description |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
53 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 Comment (Visual description) | 10 Structure (Fracture and foliation, Visua...) | 11 Structure (Veins, Visual description) | 12 Structure (Fracture morphology, Visual d...) | 13 Minerals (Visual description) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 357-M0070C-1R-1,0 | 1 | 0.000 | Sediment | Basaltic breccia, carbonate matrix | Sedimentary basalt breccia in carbonate matrix (the crusts of sediment attached to blocks is consolidated/cemented). Some pieces are vesicular, and pieces show alteration halos. Thin section request in piece 34-45cm that has metadoleritic texture. | Rest of pieces are aphyric basalt. 55-63cm is MBIO sample. Thin section at 35.5-37.5cm is a fresh basaltic rock with a 0.5 to 1mm grain size. Plagioclase laths form an interlocking texture but the rock is not ophitic, and is likely a slowly cooled | volcanic. Patches of yellow alteration may be glassy pockets. Semi-quant XRD: 35.5 - 37.5cm - clinochrysotile (67), cpx (22), carb (11) | Thin section requested | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins | Veins: Shape=0 -- No veins | Fractures: Morphology=No open fractures | Minerals: Carbonate; Plagioclase |
| 357-M0070C-1R-2,0 | 1 | 0.630 | Sediment | Basaltic breccia, carbonate matrix | Sedimentary basalt breccia in carbonate matrix.One big basalt clast, angular. | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins | Fractures: Morphology=No open fractures | Minerals: Carbonate; Plagioclase | ||||
| 357-M0070C-2R-1,0 | 1 | 1.170 | Sediment | Basaltic breccia, carbonate matrix | Fragments of sedimentary basaltic breccia with consolidated sediment on the side of some pieces. Rubbly in sections. Fragments of basalt are sub-angular. In the consoslidated sediment there are angular (<1mm) shards of oxidized basalt glass, and very | small pale-green fragments that may be serpentine sand. Basalt clasts are aphyric and poorly vesicular (<1%, <1mm). All the cut faces have a pale grey alteration halo (0.5-1.5cm). There is basalt glass in the piece at 42-47cm. | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins | Veins: Shape=0 -- No veins | Minerals: Calcite | |||
| 357-M0070C-3R-1,0 | 1 | 2.700 | Rubble | Basaltic rubble | Sedimentary basalt breccia in sand carbonate matrix. Aphiric basalt with no vesicles. Relict glass crust in clast at 4-14cm. 0-30cm: Loose basaltic rubbly section. | |||||||
| 357-M0070C-3R-1,30 | 2 | 3.000 | Sediment | Basaltic breccia, carbonate matrix | Consolidated basaltic breccia with local infill. Matrix oxidised, pale brown and orange (5YR 5/6). Later infill of cream-coloured carbonate (10YR 5/6) with fine subhorizontal layers rich in foraminifera. Matrix is cemented and oxidized, brown in color | (5YR 5/6). 33-38cm: Layering defined by alignment/imbrication of small angular basalt shards. 71-91cm: MBIO - Checked - Carbonate-cemented basaltic breccia. | Structures: Veins=0 -- No veins | Veins: Shape=0 -- No veins | Minerals: Carbonate | |||
| 357-M0070C-3R-2,30 | 1 | 3.910 | Sediment | Basaltic breccia, carbonate matrix | Sedimentary basalt breccia with basalt clasts in carbonate matrix. Matrix is cemented and oxidized, brown in color (5YR 5/6). Contains many small shards of basalt. White, late carbonate infill on top of the core (10YR 5/6). Alteration halo on the | biggest clast. Working half is broken up. | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins | Veins: Shape=0 -- No veins | Fractures: Morphology=No open fractures | Minerals: Carbonate |