Citation:

odp.proc.sr.193.211.2006

Name: (Table T1) Jasperoid sample details of ODP Hole 193-1189A and 193-1189B
Creator: Raymond A Binns
Published: 2006
License: https://creativecommons.org/licenses/by/3.0/

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Project(s):

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: -3.720650 * Median Longitude: 151.675000 * South-bound Latitude: -3.720700 * West-bound Longitude: 151.674900 * North-bound Latitude: -3.720600 * East-bound Longitude: 151.675100

Date/Time Start: 2000-11-22T08:30:00 * Date/Time End: 2000-12-26T17:00:00

Minimum DEPTH, sediment/rock: 59.14 m * Maximum DEPTH, sediment/rock: 127.74 m

Event(s):

193-1189A * Latitude: -3.720700 * Longitude: 151.674900 * Date/Time Start: 2000-11-22T08:30:00 * Date/Time End: 2000-11-23T20:45:00 * Elevation: -1690.2 m * Penetration: 125.8 m * Recovery: 8.58 m * Location: Bismarck Sea * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 125.8 m cored; 0 m drilled; 6.8 % recovery

193-1189B * Latitude: -3.720600 * Longitude: 151.675100 * Date/Time Start: 2000-12-22T07:45:00 * Date/Time End: 2000-12-26T17:00:00 * Elevation: -1681.7 m * Penetration: 206 m * Recovery: 13.69 m * Location: Bismarck Sea * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 175 m cored; 31 m drilled; 7.8 % recovery

Comment:

Curated sediment depth is given in mbsf.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Sample code/label	Sample label		Binns, Raymond A	DSDP/ODP/IODP sample designation
3	Piece	Piece		Binns, Raymond A
4	Sample code/label 2	Sample label 2		Binns, Raymond A		CSIRO no.
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Description	Description		Binns, Raymond A
7	Comment	Comment		Binns, Raymond A
8	Comment 2 (continued)	Comm 2		Binns, Raymond A
9	Comment 3 (continued)	Comm 3		Binns, Raymond A
10	Comment 4 (continued)	Comm 4		Binns, Raymond A

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

24 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Sample label	3 Piece	4 Sample label 2	5 Depth sed [m]	6 Description	7 Comment	8 Comm 2	9 Comm 3	10 Comm 4
193-1189A	193-1189A-7R-1,99-102	17	142697	59.14	Jasperoid matrix of a breccia with ragged fragments to 1 cm across of soft greenish white altered volc. rock. Consists mainly of closely packed, rel. fine grained quartz (~40? m), distinct cores clouded by minute hematite flakes (diameter < 2? m)	and outgrowth margins rel. free of inclusions. Contains numerous tiny and some larger irregular cavities, a prominent fracture lined mostly by terminated quartz crystals with fewer or no central inclusions, locally by subhedral to euhedral pyrites,	rarely by late-stage euhedral anhydrite blades. Relatively common pyrite euhedra and subhedra (0.1-0.2 mm) are also intergrown with quartz in the more compact jasperoid, where they are not so clearly related to drusy structures.	Rarer ragged patches of chalcopyrite occur in similar positions. Narrow selvages (100-200? m) of clear quartz surrounding wallrock fragments appear contemporary with quartz in smaller druses, also with thin quartz veinlets cutting some fragments.	Tiny barite crystals occur in selvages but are very rare. At immediate contact, selvage quartz appears to have replaced wallrock. The wallrock fragment has phenocrysts and microlites of unaltered plagioclase set in a chlorite-dominated clay matrix.
193-1189B	193-1189B-6R-1,45-55	5	142707	79.45	Jasperoid matrix of a breccia with numerous cavities and fragments of white, altered wallrock surrounded by 0.5-mm-thick selvages of pale yellow quartz, which also extends as a vein across one fragment. Smoky quartz surrounds some drusy cavities.	Pyrite more scarcely disseminated through jasperoid, favoring proximity of wallrock fragments. Piece 2 contains similar jasperoid, but lacks conspicuous smoky selvages around wallrock fragments. Here jasperoid consists of mostly close-packed,	rather larger quartz grains (~0.5 mm), again with sharply-bounded cores densely clouded with tiny hematite flakes as much as 5 mm in diameter. Commonly the cores themselves have the shapes of doubly-terminated prismatic quartz. Jasperoid quartz also forms	veins cutting the wallrock fragments, mainly with fewer, but one with more abundant hematite inclusions. Poikiloblastic quartz with epitaxial orientations to vein quartz locally replaces wallrock adjacent to such veins,	also surrounds rare prismatic quartz euhedra (considered replacive rather than phenocrystal) in some fragments. Rare fresh plagioclase phenocrysts occur in clay-altered fragments, some display palimpsest perlite structure or vesicular fabrics.
193-1189B	193-1189B-11R-1,14-16	3	142714	127.74	Jasperoid fragment with sliver of pale green chloritic, pyrite-rich wallrock on one side, the entire sample has a more obvious breccia structure, numerous inclusions of clay-altered wallrock showing vague flow banding. Wallrock contacts irregular.	Abundant irregular microdrusy cavities lined by euhedra of quartz, pyrite, lesser chalcopyrite, some with anhydrite tablets (more common than in 142697/142707) and patches of soft khaki clay. Quartz surrounding the cavities is coarser and clearer	than the red quartz forming areas between them, causing a more spotty appearance than in 142607 and 142707. Quartz grain size is highly variable (0.2-1 mm). Larger grains are strained and have seriate outlines; finer grains tend to be euhedral.	Strange frondlike planar aggregates of thin hematite flakes (15-25?m) occur in larger quartz grains, commonly extending across grain boundaries suggesting they formed early and became overgrown by quartz. Oval growths and curved trails of hematite,	possibly lining former cavities, also extend across several large quartz grains. The smaller quartz euhedra show marked growth zones and tend to have the more typical central cores (also with euhedral habit) clouded by tiny hematite inclusions.