Citation:

odp.proc.sr.193.212.2004

Name: (Table T1) Geochemical composition of xenoliths and host rocks from ODP Hole 193-1188A and dredge haul MD-138, PACMANUS field
Creator: Raymond A Binns
Published: 2004
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

A number of intensely altered, dark xenoliths with palimpsest quench textures were recorded within altered dacitic host rocks at Site 1189 (Roman Ruins, PACMANUS) during Ocean Drilling Program (ODP) Leg 193. Several of these displayed puzzling marginal fringes, apparently of altered plagioclase with variolitic texture, protruding into adjacent host rocks. Despite their alteration, the xenoliths were interpreted as fragments of rapidly chilled, possibly olivine-bearing basalts incorporated into the dacitic magmas either within the crustal plumbing system or during eruption at the seafloor (figures F15, F16, F17, F42, and F43 in Shipboard Scientific Party, 2002, doi:10.2973/odp.proc.ir.193.104.2002).

An additional example of formerly spinifex-textured xenolith, the first from Site 1188 (Snowcap) and the first from the upper cristobalite-bearing zone of alteration, has been revealed by postcruise studies. Furthermore, a pristine sample of the parent lithology has been found within a dredge haul (MD-138, Binatang-2000 Cruise of Franklin; 3°43.60'S, 151°40.35'E, 1688 meters below sea level) from the Satanic Mills hydrothermal field at PACMANUS, near ODP Site 1191.

The purpose of this report is to document these discoveries and thereby to confirm and build on shipboard interpretations. To my knowledge, similar xenoliths have never before been found in modern island arc or backarc volcanic sequences. Spinifex textures are most common in Archean komatiites, some of which are bimodally associated with calc-alkaline felsic volcanic rocks.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: -3.727500 * Median Longitude: 151.671200 * South-bound Latitude: -3.728300 * West-bound Longitude: 151.669900 * North-bound Latitude: -3.726700 * East-bound Longitude: 151.672500

Date/Time Start: 2000-04-14T00:00:00 * Date/Time End: 2000-11-22T08:30:00

Minimum Elevation: -1688.0 m * Maximum Elevation: -1640.2 m

Event(s):

193-1188A * Latitude: -3.728300 * Longitude: 151.669900 * Date/Time Start: 2000-11-18T17:30:00 * Date/Time End: 2000-11-22T08:30:00 * Elevation: -1640.2 m * Penetration: 211.6 m * Recovery: 21.93 m * Location: Bismarck Sea * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 211.6 m cored; 0 m drilled; 10.4 % recovery

MD-138 (FR03/2000) * Latitude: -3.726700 * Longitude: 151.672500 * Date/Time Start: 2000-04-14T00:00:00 * Date/Time End: 2000-05-04T00:00:00 * Elevation: -1688.0 m * Location: Papua New Guinea * Method/Device: Dredge (DRG) * Comment: Binatang-2000 Cruise of RV Franklin

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 ID	Sample ID		Binns, Raymond A		CSIRO number
5	Rock type	Rock		Binns, Raymond A
6	Silicon dioxide	SiO2	%	Binns, Raymond A
7	Titanium dioxide	TiO2	%	Binns, Raymond A
8	Aluminium oxide	Al2O3	%	Binns, Raymond A
9	Iron oxide, FeO	FeO	%	Binns, Raymond A		total
10	Manganese oxide	MnO	%	Binns, Raymond A
11	Magnesium oxide	MgO	%	Binns, Raymond A
12	Calcium oxide	CaO	%	Binns, Raymond A
13	Sodium oxide	Na2O	%	Binns, Raymond A
14	Potassium oxide	K2O	%	Binns, Raymond A
15	Phosphorus pentoxide	P2O5	%	Binns, Raymond A
16	Sulfur, total	TS	%	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
17	Loss on ignition	LOI	%	Binns, Raymond A		at 105°C (samples pre-dried at ~40°C)
18	Loss on ignition	LOI	%	Binns, Raymond A		at 1050°C
19	Elements, total	Total	%	Binns, Raymond A
20	Lithium	Li	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
21	Beryllium	Be	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
22	Chlorine	Cl	mg/kg	Binns, Raymond A	X-ray fluorescence (XRF)
23	Scandium	Sc	mg/kg	Binns, Raymond A
24	Vanadium	V	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
25	Chromium	Cr	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
26	Cobalt	Co	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
27	Nickel	Ni	mg/kg	Binns, Raymond A
28	Copper	Cu	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
29	Zinc	Zn	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
30	Gallium	Ga	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
31	Germanium	Ge	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
32	Arsenic	As	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
33	Rubidium	Rb	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
34	Strontium	Sr	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
35	Yttrium	Y	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
36	Zirconium	Zr	mg/kg	Binns, Raymond A
37	Molybdenum	Mo	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
38	Cadmium	Cd	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
39	Indium	In	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
40	Antimony	Sb	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
41	Tellurium	Te	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
42	Caesium	Cs	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
43	Barium	Ba	mg/kg	Binns, Raymond A	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
44	Lanthanum	La	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
45	Cerium	Ce	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
46	Praseodymium	Pr	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
47	Neodymium	Nd	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
48	Samarium	Sm	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
49	Europium	Eu	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
50	Gadolinium	Gd	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
51	Terbium	Tb	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
52	Dysprosium	Dy	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
53	Holmium	Ho	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
54	Erbium	Er	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
55	Thulium	Tm	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
56	Ytterbium	Yb	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
57	Lutetium	Lu	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
58	Thallium	Tl	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
59	Lead	Pb	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
60	Bismuth	Bi	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
61	Thorium	Th	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)
62	Uranium	U	mg/kg	Binns, Raymond A	Inductively coupled plasma - mass spectrometry (ICP-MS)

License:

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

Size:

295 data points

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