Citation:

odp.proc.sr.135.128.1994

Name: (Table 1) Determined and theoretical chemical composition of thaumasite of ODP Hole 135-841B
Published: 1994
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1994 (exact date unknown) • DOI registered: 2012-12-06

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Abstract:

Hole 841B was drilled in the forearc region of the Lau Basin at a water depth of 4810 m. The hole penetrated a roughly 500-m-thick series of Miocene volcanic sediments with a number of basaltic to andesitic units (sills?) varying in thickness between 7 cm and 17 m. The volcanics are slightly to moderately altered and contain analcite, chabazite, natrolite-thompsonite, heulandite (?), prehnite, and quartz as secondary phases. In addition, thaumasite [Ca3Si(OH)6 * 12H2O](SO4)(CO3) was identified in the altered sequence. Sulfur isotope data of two thaumasite separates (+23.5 per mil and +21.1 per mil d34S) indicate a seawater origin of the sulfate sulfur. It is suggested that thaumasite is a product of low-temperature (<60 °C), seawater-derived CaCl2-rich fluids that were almost identical in composition to those presently circulating in the sub-seafloor.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Latitude: -23.346000 * Longitude: -175.297000

Date/Time Start: 1991-02-02T15:40:00 * Date/Time End: 1991-02-10T20:30:00

Minimum DEPTH, sediment/rock: 325.14 m * Maximum DEPTH, sediment/rock: 325.14 m

Event(s):

135-841B * Latitude: -23.346000 * Longitude: -175.297000 * Date/Time Start: 1991-02-02T15:40:00 * Date/Time End: 1991-02-10T20:30:00 * Elevation: -4821.0 m * Penetration: 834.2 m * Recovery: 182.54 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 70 cores; 664.4 m cored; 0 m drilled; 27.5 % recovery

Comment:

Sediment depth is given in mbsf. Thaumasite = [Ca3Si (OH)6 * 12H2O](SO4)(CO3)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Silicon dioxide	SiO2	%	Schöps, Dietmar	X-ray fluorescence (XRF)
3	Silicon dioxide	SiO2	%	Schöps, Dietmar		theoretical
4	Titanium dioxide	TiO2	%	Schöps, Dietmar	X-ray fluorescence (XRF)
5	Aluminium oxide	Al2O3	%	Schöps, Dietmar	X-ray fluorescence (XRF)
6	Iron oxide, Fe2O3	Fe2O3	%	Schöps, Dietmar	X-ray fluorescence (XRF)
7	Manganese oxide	MnO	%	Schöps, Dietmar	X-ray fluorescence (XRF)
8	Magnesium oxide	MgO	%	Schöps, Dietmar	X-ray fluorescence (XRF)
9	Calcium oxide	CaO	%	Schöps, Dietmar	X-ray fluorescence (XRF)
10	Calcium oxide	CaO	%	Schöps, Dietmar		theoretical
11	Sodium oxide	Na2O	%	Schöps, Dietmar	X-ray fluorescence (XRF)
12	Potassium oxide	K2O	%	Schöps, Dietmar	X-ray fluorescence (XRF)
13	Phosphorus pentoxide	P2O5	%	Schöps, Dietmar	X-ray fluorescence (XRF)
14	Sulfite	[SO3]2-	%	Schöps, Dietmar	X-ray fluorescence (XRF)
15	Sulfite	[SO3]2-	%	Schöps, Dietmar		theoretical
16	Carbon dioxide	CO2	%	Schöps, Dietmar	X-ray fluorescence (XRF)
17	Carbon dioxide	CO2	%	Schöps, Dietmar		theoretical
18	Water in rock	H2O	%	Schöps, Dietmar	X-ray fluorescence (XRF)
19	Water in rock	H2O	%	Schöps, Dietmar		theoretical
20	Elements, total	Total	%	Schöps, Dietmar	X-ray fluorescence (XRF)
21	Scandium	Sc	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
22	Chromium	Cr	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
23	Cobalt	Co	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
24	Bromine	Br	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
25	Uranium	U	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
26	Nickel	Ni	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
27	Zinc	Zn	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
28	Arsenic	As	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
29	Selenium	Se	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
30	Rubidium	Rb	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
31	Strontium	Sr	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
32	Molybdenum	Mo	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
33	Silver	Ag	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
34	Copper	Cu	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
35	Niobium	Nb	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
36	Zirconium	Zr	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
37	Yttrium	Y	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
38	Gallium	Ga	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
39	Cobalt	Co	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
40	Antimony	Sb	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
41	Caesium	Cs	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
42	Barium	Ba	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
43	Hafnium	Hf	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
44	Tantalum	Ta	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
45	Tungsten	W	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
46	Thorium	Th	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
47	Lanthanum	La	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
48	Cerium	Ce	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
49	Neodymium	Nd	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
50	Samarium	Sm	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
51	Europium	Eu	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
52	Terbium	Tb	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
53	Ytterbium	Yb	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
54	Lutetium	Lu	mg/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
55	Gold	Au	ng/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
56	Iridium	Ir	ng/kg	Schöps, Dietmar	X-ray fluorescence (XRF)
57	Silicon	Si	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
58	Aluminium	Al	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
59	Iron 2+ and 3+	Fe	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
60	Magnesium	Mg	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
61	Calcium	Ca	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
62	Sodium	Na	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
63	Sulfur	S	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
64	Carbon	C	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
65	Hydroxide	OH	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
66	Water	H2O	# of ions	Schöps, Dietmar	Calculated based on oxygen number	25 O-atoms
67	Silicon	Si	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
68	Aluminium	Al	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
69	Iron 2+ and 3+	Fe	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
70	Magnesium	Mg	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
71	Calcium	Ca	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
72	Sodium	Na	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
73	Sulfur	S	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
74	Carbon	C	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
75	Hydroxide	OH	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5
76	Water	H2O	# of ions	Schöps, Dietmar	Calculated	(Si, Ca, Na, K, S) = 5

License:

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

Size:

75 data points

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