Expedition 357 Scientists (2017): Description of lithologic section units of IODP Hole 357-M0070A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.872030
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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: 30.142550 * Longitude: -42.136470
Date/Time Start: 2015-11-08T00:00:00 * Date/Time End: 2015-11-09T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 3.220 m
Event(s):
357-M0070A (AM-07A) * Latitude: 30.142550 * Longitude: -42.136470 * Date/Time Start: 2015-11-08T00:00:00 * Date/Time End: 2015-11-09T00:00:00 * Elevation: -1140.5 m * IGSN: IBCR0357EHC0001 * Location: Atlantis Massif * Campaign: Exp357 * Basis: James Cook * Comment: MeBo, CTD: 30 8.552N / 42 8.189W, back on deck 13:30, MeBo launched 14:05
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 | 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:
51 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 Structure (Fracture and foliation, Visua...) | 11 Structure (Veins, Visual description) | 12 Structure (Fracture morphology, Visual d...) | 13 Minerals (Visual description) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 357-M0070A-1R-1,0 | 1 | 0.000 | Sediment | Fossiliferous calc sand | Foraminiferous carbonate sand. Contains small basaltic lithic fragments, rounded to 8mm. Munsell 10YR 7/4 | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins | Veins: Shape=0 -- No veins | Fractures: Morphology=No open fractures | Minerals: Carbonate | |||
| 357-M0070A-1R-1,10 | 2 | 0.100 | Sediment | Basaltic breccia, carbonate matrix | Sedimentary basalt breccia with cemented matrix along sides of angular basalt fragments. At bottom matrix is oxidized (orange/brown), more brown than upper sediment. Larger pieces show an alteration? halo, variation of vesicularity between core-rim. | Clasts are poorly vesicular, and in some cases plagioclase-phyric (<1mm, euhedral and occasionally laths). 23-29cm: Rubble <1.5cm | ||||||
| 357-M0070A-2R-1,0 | 1 | 1.780 | Rubble | Basaltic rubble | Rubble of basalt breccia with loose basalt clasts at top of core. 0-5cm. Clast of basalt with <1% vesicles, larger rounded and smaller angular/irregular. | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins | Veins: Shape=0 -- No veins | Fractures: Morphology=No open fractures | Minerals: Carbonate | |||
| 357-M0070A-2R-1,21 | 2 | 1.990 | Sediment | Basaltic breccia, carbonate matrix | Carbonate-cemented basaltic breccia. Carbonate matrix is reddish and oxidized, with later light cream carbonate at 65-79cm. Some of the basalt clasts have glass. Possible imbrication of fragments in matrix at 45-55cm, dip 30 degrees towards 090 in core | reference frame. At 69cm one of the white matrix areas has a subhorizontal lamination and an open cavity above, suggesting the breccia has been cored in situ Microbiology sample from 78 to 97cm appears to be similar material from the photograph. | Thin section at 73-77.5cm contains clasts of porphyritic fresh glass and basalt in an orange to white carbonate matrix. Foraminifera are common, espacially in the white carbonate which lacks glassy fragments. Glass is generally partially altered to | yellow palagonite with concentric and tubular patterns possibly indicating a biogenic origin. | Structures: Veins=0 -- No veins | Veins: Shape=0 -- No veins | Minerals: Carbonate | |
| 357-M0070A-3R-1,0 | 1 | 2.860 | Sediment | Basaltic breccia, carbonate matrix | Sedimentary basaltic breccia with oxidized carbonate matrix (Munsell color: 10YR 6/6).Basalt fragments are aphyric and poorly to sparsely vesicular (generally <1%). Vesicles rounded to sub-rounded. Orange sediment contains glassy fragments. Later white | carbonate has filled cavities. Structure suggests no rotation. Dominated by carbonate matrix a) as in above unit, with some cream-coloured matrix c) as above.0-20cm: Consolidated with angular clasts and dark orange oxidized matrix. | MBIO 20-37cm - Checked - Basaltic breccia with dark carbonate matrix. One fragment remains in the archive/working half. | Structures: Open fractures=0 -- No open fractures; Veins=0 -- No veins; Foliation=0 -- Massive; Cataclastic deformation=0 -- Undeformed | Veins: Shape=0 -- No veins | Fractures: Morphology=No open fractures | Minerals: Carbonate; Plagioclase | |
| 357-M0070A-3R-1,36 | 2 | 3.220 | Rubble | Basaltic rubble | 37-67cm: loose clasts of basalt 45-49cm: Basalt with grey halo and core. |