Citation:

dsdp.proc.83.104.1985

Name: (Table 6) Geochemistry of basalts at DSDP Hole 83-504B
Published: 1983
License: https://creativecommons.org/licenses/by/3.0/

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Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Latitude: 1.227200 * Longitude: -83.730200

Date/Time Start: 1981-11-22T00:00:00 * Date/Time End: 1982-01-02T00:00:00

Minimum DEPTH, sediment/rock: 844.18 m * Maximum DEPTH, sediment/rock: 1345.68 m

Event(s):

83-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time Start: 1981-11-22T00:00:00 * Date/Time End: 1982-01-02T00:00:00 * Elevation: -3460.0 m * Penetration: 1350 m * Recovery: 107.7 m * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: Leg 83 of DSDP was devoted entirely to coring and experiments in Hole 504B, the deepest borehole to date into the oceanic crust. Hole 504B now extends over a kilometer into basement, nearly twice as far as any other DSDP hole, and it is the only DSDP hole to have clearly penetrated into the intrusive sheeted dikes that underlie the extrusive pillow lavas of the upper oceanic crust. At Hole 504B, Leg 83 continued an ongoing DSDP effort that began during Legs 68, 69, and 70 in 1979, and also included part of Leg 92 in 1983. 71 cores; 514 m cored; 0 m drilled; 21 % recovery

Comment:

Sediment depth is given in mbsf. repl.=replaced

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample code/label	Sample label		Kempton, Pamela D	DSDP/ODP/IODP sample designation
2	Sample, optional label/labor no	Lab no		Kempton, Pamela D
3	DEPTH, sediment/rock	Depth sed	m			Geocode
4	Type	Type		Kempton, Pamela D	see reference(s)
5	Group	Group		Kempton, Pamela D	see reference(s)
6	Alteration	Alteration		Kempton, Pamela D
7	Silicon dioxide	SiO2	%	Kempton, Pamela D	Microprobe
8	Titanium dioxide	TiO2	%	Kempton, Pamela D	Microprobe
9	Aluminium oxide	Al2O3	%	Kempton, Pamela D	Microprobe
10	Iron oxide, Fe2O3	Fe2O3	%	Kempton, Pamela D	Microprobe	Total iron
11	Manganese oxide	MnO	%	Kempton, Pamela D	Microprobe
12	Magnesium oxide	MgO	%	Kempton, Pamela D	Microprobe
13	Calcium oxide	CaO	%	Kempton, Pamela D	Microprobe
14	Sodium oxide	Na2O	%	Kempton, Pamela D	Microprobe	# indicates Na2O determined by INAA
15	Potassium oxide	K2O	%	Kempton, Pamela D	Microprobe
16	Phosphorus pentoxide	P2O5	%	Kempton, Pamela D	Microprobe
17	Total	Total	%	Kempton, Pamela D	Microprobe
18	Rubidium	Rb	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
19	Strontium	Sr	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
20	Yttrium	Y	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
21	Gallium	Ga	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
22	Zirconium	Zr	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
23	Niobium	Nb	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
24	Zinc	Zn	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
25	Nickel	Ni	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
26	Chromium	Cr	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
27	Vanadium	V	mg/kg	Kempton, Pamela D	X-ray fluorescence (XRF)
28	Magnesium number	Mg#		Kempton, Pamela D		#1; Mg/(Mg + Fe2+)
29	Magnesium number	Mg#		Kempton, Pamela D		#2; Mg/(Mg + Fe2+)
30	Iron oxide, FeO	FeO	%	Kempton, Pamela D		Total iron
31	Iron oxide, FeO/magnesium oxid, MgO ratio	FeO/MgO		Kempton, Pamela D
32	Calcium oxide/Sodium oxide	CaO/Na2O		Kempton, Pamela D
33	Zirconium/Yttrium ratio	Zr/Y		Kempton, Pamela D

License:

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

Size:

1826 data points

Data

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

1 Sample label (DSDP/ODP/IODP sample designation)	2 Lab no	3 Depth sed [m]	4 Type (see reference(s))	5 Group (see reference(s))	6 Alteration	7 SiO2 [%] (Microprobe)	8 TiO2 [%] (Microprobe)	9 Al2O3 [%] (Microprobe)	10 Fe2O3 [%] (Total iron, Microprobe)	11 MnO [%] (Microprobe)	12 MgO [%] (Microprobe)	13 CaO [%] (Microprobe)	14 Na2O [%] (# indicates Na2O determined b...)	15 K2O [%] (Microprobe)	16 P2O5 [%] (Microprobe)	17 Total [%] (Microprobe)	18 Rb [mg/kg] (X-ray fluorescence (XRF))	19 Sr [mg/kg] (X-ray fluorescence (XRF))	20 Y [mg/kg] (X-ray fluorescence (XRF))	21 Ga [mg/kg] (X-ray fluorescence (XRF))	22 Zr [mg/kg] (X-ray fluorescence (XRF))	23 Nb [mg/kg] (X-ray fluorescence (XRF))	24 Zn [mg/kg] (X-ray fluorescence (XRF))	25 Ni [mg/kg] (X-ray fluorescence (XRF))	26 Cr [mg/kg] (X-ray fluorescence (XRF))	27 V [mg/kg] (X-ray fluorescence (XRF))	28 Mg# (#1; Mg/(Mg + Fe2+))	29 Mg# (#2; Mg/(Mg + Fe2+))	30 FeO [%] (Total iron)	31 FeO/MgO	32 CaO/Na2O	33 Zr/Y
83-504B-72-1,67-69	83-2	844.18	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	saponite replacement of olivine and interstitial areas	49.8	0.87	16.57	9.13	0.15	8.55	13.12	2.22	0.03	0.09	100.53	0.6	65	21.1	13.8	44	0.8	76	150	398.00	242	0.673		8.22	0.96	5.90	2.06
83-504B-73-1,126-130	83-4	853.78	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	saponite replacement of olivine and interstitial areas	49.6	0.83	15.84	9.46	0.17	8.99	12.93	#1.93	0.04	0.07	99.86	<0.5	61	20.3	15.0	42	0.6	68	150	437.00	230	0.677		8.51	0.95	6.70	2.08
83-504B-76-1,45-47	83-5	879.96	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	saponite replacement of olivine and interstitial areas	49.5	0.93	16.36	9.83	0.19	8.88	12.72	2.16	0.02	0.09	100.68	0.5	72	22.2	14.8	49	<0.5	67	166	381.00	227	0.665		8.85	1.00	6.90	2.21
83-504B-77-3,11-13	83-6	891.62	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	50.4	1.04	14.70	10.68	0.18	8.29	12.25	#2.44	0.02	0.08	100.08	0.6	56	26.4	15.5	54	0.7	85	92	242.00	311	0.631		9.61	1.16	5.00	2.03
83-504B-81-1,64-68	83-7	920.16	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.8	0.93	15.64	10.05	0.27	8.41	13.21	1.96	0.01	0.08	100.36	<0.5	54	23.1	15.2	48	0.6	102	116	377.00	283	0.648		9.04	1.07	6.70	2.06
83-504B-82-3,88-92	83-9	932.40	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.6	0.90	15.83	9.69	0.26	9.00	13.12	1.83	0.02	0.09	100.34	<0.5	49	22.3	15.4	46	0.7	97	138	393.00	264	0.672		8.72	0.97	7.20	2.04
83-504B-84-1,77-79	83-10	947.28	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	49.5	0.92	15.75	9.73	0.25	8.71	13.18	#1.87	0.01	0.09	100.01	<0.5	51	22.7	14.8	46	<0.5	99	121	373.00	275	0.663		8.76	1.00	7.00	2.01
83-504B-85-2,66-68	83-11	957.67	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.0	1.04	15.16	10.46	0.22	8.53	13.18	1.95	0.03	0.10	100.67	<0.5	62	25.5	15.6	56	0.7	92	101	351.00	281	0.642		9.41	1.10	6.80	2.20
83-504B-87-1,73-77	83-12	967.75	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.5	1.06	14.78	10.34	0.27	8.08	12.98	2.19	0.03	0.10	100.33	<0.5	59	26.7	14.1	54	0.8	108	82	205.00	278	0.632		9.30	1.15	5.90	2.02
83-504B-88-1,109-113	83-13	977.61	strongly depleted in all magmaphile elements except the highly incompatible ones (Nb, La, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.6	1.10	15.45	9.96	0.24	8.83	12.74	#2.13	0.05	0.13	100.23	<0.5	75	24.2	15.0	68	3.8	104	105	330.00	256	0.661		8.96	1.01	6.00	2.82
83-504B-89-1,1-4	83-14	985.54	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.0	0.93	16.18	9.41	0.24	8.96	13.16	2.19	0.02	0.08	100.17	0.5	69	22.4	14.1	55	0.5	97	136	427.00	251	0.677		8.47	0.95	6.00	2.44
83-504B-90-1,8-12	83-15	994.60	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.9	1.02	14.90	10.18	0.25	8.96	13.06	1.99	0.01	0.10	100.37	<0.5	54	25.5	14.5	52	<0.5	98	95	308.00	305	0.660		9.16	1.02		2.02
83-504B-90-2,23-26	83-16	996.24	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	conditions specified in 3 plus alteration distributed as large patches not restricted to particular primary crystals; implies extensive alteration	49.8	1.01	14.77	10.55	0.26	9.09	12.58	1.90	0.01	0.09	100.06	<0.5	55	25.1	15.2	54	0.5	98	99	352.00	294	0.655		9.49	1.04	6.60	2.16
83-504B-90-2,101-104	83-17	997.03	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.1	1.03	14.45	11.47	0.22	8.23	13.00	1.82	0.01	0.09	100.42	<0.5	47	26.8	16.0	52	0.7	87	87	204.00	308	0.612		10.32	1.25	7.10	1.93
83-504B-90-4,49-53	83-18	999.51	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.9	0.96	16.08	9.67	0.21	8.69	12.67	#1.74	0.02	0.09	100.03	0.6	66	22.6	14.6	54	0.6	88	102	355.00	250	0.664		8.70	1.00	7.30	2.37
83-504B-91-1,127-132	83-19	1004.80	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 3 plus alteration distributed as large patches not restricted to particular primary crystals; implies extensive alteration	49.1	0.78	16.00	9.82	0.24	8.91	13.61	#1.65	0.01	0.08	100.20	0.5	39	20.4	14.8	36	0.6	102	132	424.00	262	0.666		8.84	0.99	8.20	1.76
83-504B-91-4,39-43	83-20	1008.41	strongly depleted in all magmaphile elements except the highly incompatible ones (Nb, La, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	51.6	1.08	15.10	9.75	0.25	8.59	11.74	2.17	0.01	0.09	100.38	<0.5	72	22.8	14.5	67	4.2	109	108	353.00	257	0.660		8.77	1.02	5.40	2.92
83-504B-93-1,106-108	83-21	1022.57	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.4	0.98	15.46	9.93	0.23	8.29	12.87	2.08	0.02	0.09	100.34	<0.5	60	23.2	15.0	53	1.1	89	97	338.00	270	0.648		8.94	1.08	6.20	2.28
83-504B-93-3,27-32	83-22	1024.80	moderate concentrations of both moderately and highly incompatible trace elements	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	48.7	1.58	16.00	10.71	0.21	8.66	11.88	#2.34	0.01	0.19	100.28	<0.5	76	33.0	16.4	132	1.4	89	134	287.00	236	0.640		9.64	1.11	5.10	4.00
83-504B-94-1,67-72	83-23	1031.20	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	saponite replacement of olivine and interstitial areas	49.9	0.97	15.43	10.31	0.17	8.42	12.70	1.92	0.01	0.07	99.90	<0.5	57	23.9	15.9	50	0.9	84	117	312.00	269	0.643		9.28	1.10	6.60	2.08
83-504B-94-3,143-147	83-24	1034.95	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.2	1.06	15.04	11.01	0.22	7.87	12.78	1.86	0.02	0.10	100.16	0.5	47	26.7	15.4	54	0.5	104	91	256.00	303	0.611		9.91	1.26	6.90	2.03
83-504B-95-1,137-140	83-25	1040.89	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 3 plus alteration distributed as large patches not restricted to particular primary crystals; implies extensive alteration	51.7	1.01	14.51	10.62	0.20	8.11	12.29	1.95	0.03	0.09	100.51	<0.5	51	25.2	15.0	51	0.5	79	89	209.00	280	0.627		9.56	1.18	6.30	2.02
83-504B-99-1,112-116	83-26	1072.64	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	50.1	0.94	14.65	10.79	0.21	8.79	12.94	2.10	0.01	0.09	100.62	0.5	49	24.1	14.9	45	0.8	80	92	228.00	292	0.642		9.71	1.11	6.20	1.85
83-504B-100-2,26-31	83-27	1082.28	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	50.1	0.90	14.98	10.24	0.19	8.65	13.37	1.85	0.01	0.08	100.37	<0.5	48	23.6	16.0	43	0.8	77	106	490.00	283	0.650		9.21	1.07	7.20	1.81
83-504B-101-1,2-5	83-28	1089.53	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	49.9	0.90	14.77	10.40	0.20	8.60	13.01	2.33	0.02	0.08	100.21	<0.5	46	23.7	15.0	38	1.1	81	87	210.00	302	0.645		9.36	1.08	5.60	1.61
83-504B-101-2,16-20	83-30	1091.18	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.6	1.12	14.31	11.62	0.20	7.72	12.61	1.98	0.01	0.10	100.27	<0.5	52	28.0	16.1	56	<0.5	84	76	168.00	319	0.594		10.46	1.36	6.40	2.00
83-504B-104-1,15-19	83-31	1116.67	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.1	1.03	14.85	11.01	0.19	8.05	12.69	1.76	0.01	0.10	99.79	0.7	54	25.8	16.8	51	0.6	79	90	228.00	282	0.617		9.91	1.23	7.20	1.98
83-504B-104-2,24-27	83-32	1118.26	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.0	0.95	16.01	9.84	0.17	7.97	13.05	#1.84	0.01	0.09	99.93	0.5	61	22.9	16.4	49	0.9	70	104	363.00	246	0.641		8.85	1.11	7.10	2.14
83-504B-107-2,71-75	83-33	1145.73	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	saponite replacement of olivine and interstitial areas	50.6	0.84	15.11	9.78	0.17	8.86	13.06	2.07	0.01	0.08	100.58	<0.5	58	20.5	15.7	43	0.5	67	102	333.00	245	0.666		8.80	0.99	6.30	2.08
83-504B-108-1,95-97	83-34	1153.46	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	saponite replacement of olivine and interstitial areas	50.8	0.89	14.76	10.11	0.17	8.79	12.86	1.96	0.03	0.08	100.45	0.9	59	22.4	15.3	46	0.5	75	99	314.00	262	0.657		9.10	1.03	6.60	2.04
83-504B-109-1,49-52	83-35	1154.01	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.3	0.93	15.54	10.22	0.18	8.01	13.03	#1.86	0.01	0.10	100.18	<0.5	50	23.3	15.9	46	<0.5	72	90	267.00	272	0.633		9.20	1.15	7.00	1.97
83-504B-110-1,17-19	83-36	1157.18	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.4	0.90	14.91	9.97	0.19	8.63	13.11	2.14	0.01	0.09	100.35	<0.5	57	22.5	15.2	45	0.9	71	99	315.00	256	0.656		8.97	1.03	6.10	2.00
83-504B-112-1,34-36	83-39	1166.35	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	saponite replacement of olivine and interstitial areas	50.0	0.81	15.30	9.88	0.17	9.05	13.34	1.75	0.17	0.07	100.54	<0.5	51	20.3	15.4	38	0.7	84	124	427.00	249	0.668		8.89	0.98	7.60	1.88
83-504B-113-1,129-133	83-40	1172.31	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.3	0.82	15.38	9.87	0.17	8.75	13.32	#1.64	0.01	0.07	100.33	<0.5	43	20.1	15.0	38	0.7	79	116	384.00	254	0.661		8.88	1.01	8.10	1.91
83-504B-116-1,43-46	83-41	1185.45	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 3 plus alteration distributed as large patches not restricted to particular primary crystals; implies extensive alteration	49.0	0.98	15.01	10.79	0.18	8.81	12.67	#2.52	0.02	0.09	100.07	<0.5	49	24.8	15.9	44	0.5	50	99	342.00	286	0.642		9.71	1.10	5.00	1.77
83-504B-117-1,9-13	83-42	1189.61	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.7	0.97	15.29	10.40	0.17	8.09	13.10	1.81	0.01	0.09	100.63	<0.5	49	24.7	15.7	47	0.7	79	98	292.00	294	0.631		9.36	1.15	7.20	1.89
83-504B-118-1,48-53	83-42	1194.51	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	50.6	0.97	15.11	10.49	0.17	8.38	12.95	1.90	0.01	0.09	100.67	<0.5	51	24.5	15.5	47	1.1	73	103	297.00	286	0.637		9.44	1.12	6.80	1.92
83-504B-121-1,15-19	83-44	1207.67	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.7	1.05	14.45	11.27	0.19	7.99	12.51	1.85	0.01	0.10	100.12	<0.5	43	26.9	16.0	49	0.5	94	90	218.00	320	0.609		10.14	1.26	6.80	1.81
83-504B-123-1,60-63	83-45	1223.12	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	saponite replacement of olivine and interstitial areas	48.8	0.85	16.50	9.90	0.17	8.67	13.20	1.88	0.01	0.08	100.06	<0.5	60	23.0	15.7	43	1.0	75	137	178.00	240	0.658		8.91	1.02	7.00	1.88
83-504B-124-1,98-100	83-47	1232.49	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.4	0.96	14.86	10.60	0.20	8.42	13.14	1.87	0.04	0.12	100.61	<0.5	45	24.5	16.1	43	0.7	66	92	339.00	281	0.636		9.54	1.14	7.00	1.77
83-504B-125-1,32-36	83-48	1240.84	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt		49.8	1.01	14.72	10.96	0.23	8.51	13.16	2.07	0.02	0.09	100.57	<0.5	48	25.9	15.2	48	0.7	90	92	325.00	296	0.631		9.86	1.15	6.40	1.86
83-504B-126-1,38-41	83-49	1249.90	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.3	0.76	16.45	8.95	0.15	8.89	13.28	1.75	0.01	0.08	99.62	<0.5	64	18.7	14.7	40	0.8	77	150	427.00	220	0.686		8.05	0.91	7.60	2.15
83-504B-127-1,38-42	83-50	1253.90	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.8	0.77	16.32	9.19	0.15	9.51	13.29	1.71	0.01	0.08	100.83	<0.5	61	18.8	15.0	40	0.7	66	164	416.00	219	0.695		8.27	0.87	7.80	2.13
83-504B-128-1,115-118	83-51	1262.17	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	48.9	0.74	16.36	8.93	0.14	9.34	13.39	1.63	0.01	0.08	99.52	<0.5	60	18.1	14.8	37	0.8	66	569	447.00	217	0.697		8.04	0.89	8.20	2.05
83-504B-129-1,76-81	83-52	1270.78	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.4	0.71	15.80	9.14	0.15	10.65	12.93	#1.48	<0.01	0.07	100.33	<0.5	54	17.2	13.1	36	0.5	68	246	532.00	204	0.719		8.22	0.77	8.70	2.09
83-504B-129-2,130-132	83-53	1272.81	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	50.1	1.05	14.66	11.00	0.21	8.31	12.93	2.15	0.01	0.09	100.51	<0.5	58	25.7	16.4	56	0.6	73	83	219.00	298	0.624		9.90	1.18	6.00	2.18
83-504B-130-1,15-20	83-55	1279.17	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.5	0.75	16.46	9.06	0.16	9.23	13.37	1.76	0.01	0.07	100.37	<0.5	62	18.2	15.1	39	0.5	63	160	4.56	218	0.692		8.15	0.88	7.60	2.11
83-504B-130-3,94-99	83-56	1282.97	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	48.9	0.73	16.15	9.19	0.15	10.43	12.81	1.61	<0.01	0.08	100.06	<0.5	55	18.2	14.4	37	0.6	65	211	389.00	196	0.714		8.27	0.79	8.00	2.04
83-504B-131-1,3-7	83-57	1287.55	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 3 plus alteration distributed as large patches not restricted to particular primary crystals; implies extensive alteration	49.4	0.74	16.57	8.83	0.16	9.51	13.41	1.65	0.01	0.06	100.34	<0.5	58	18.1	13.9	38	0.9	76	157	451.00	167	0.703		7.95	0.83	8.10	2.07
83-504B-132-1,141-144	83-58	1296.42	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.3	0.86	15.89	9.91	0.18	8.57	13.39	1.83	0.01	0.07	100.01	<0.5	57	22.5	14.8	44	0.8	78	127	393.00	261	0.656		8.92	1.04	7.30	1.96
83-504B-133-1,10-15	83-59	1304.13	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine and plagioclase phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	49.5	0.86	16.29	9.87	0.17	8.36	13.43	1.85	0.01	0.08	100.42	<0.5	59	22.3	15.4	44	0.8	74	122	382.00	256	0.651	8.86	1.06	7.30	1.99
83-504B-133-1,101-106	83-60	1305.03	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	50.0	0.96	14.65	10.64	0.19	8.34	13.02	#1.89	0.02	0.08	99.79	<0.5	45	24.9	15.6	45	0.7	76	89	317.00	287	0.633	9.59	1.15	6.90	1.80
83-504B-134-1,72-74	83-61	1313.73	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	repl. of FeTi oxides by sphene or patchy repl. of plagioclase by zeolite or albite in addition to criteria for alteration of plagioclase along fractures, complete repl. of olivine and interstitial areas by clays or chlorite	49.7	0.98	15.48	10.42	0.17	8.18	12.98	1.95	0.01	0.08	99.95	<0.5	58	23.9	15.9	49	0.9	76	102	286.00	269	0.633	9.32	1.14	6.70	2.03
83-504B-136-1,4-7	83-62	1322.06	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt		50.0	1.09	14.44	11.28	0.19	8.08	12.48	2.00	0.02	0.10	99.68	0.6	58	26.6	15.6	58	1.0	101	84	177.00	507	0.612	10.10	1.25	6.20	2.17
83-504B-137-1,11-16	83-63	1327.14	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.5	0.79	16.23	9.30	0.18	9.19	13.35	1.81	0.01	0.07	100.43	<0.5	61	19.3	14.3	42	0.9	73	154	424.00	225	0.685	10.29	1.12	7.40	2.18
83-504B-137-1,93-97	83-64	1327.95	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.0	0.78	17.19	8.89	0.16	8.52	13.69	1.82	0.01	0.07	100.13	<0.5	61	19.4	14.7	40	0.7	67	143	457.00	222	0.678	8.01	0.94	7.50	2.04
83-504B-138-1,62-67	83-65	1332.65	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	alteration of plagioclase along fractures, complete replacement of olivine and interstitial areas by clays or chlorite	49.7	0.82	16.21	9.27	0.16	8.65	13.36	1.85	0.02	0.07	100.11	<0.5	59	20.1	14.5	41	0.6	72	133	417.00	233	0.673	8.39	0.97	7.20	2.03
83-504B-140-1,40-42	83-67	1341.41	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	48.8	1.14	14.70	11.59	0.22	8.44	12.99	#1.68	0.03	0.11	99.70	<0.5	51	20.8	15.4	59	1.0	71	91	267.00	326	0.616	10.38	1.23	7.70	2.84
83-504B-141-1,16-20	83-68	1345.68	majority of basalts, unusual compositions relative to normal MORB. High Mg and CaO, depletion in compatible trace el. (Cr,Ni); moderately incompatible trace el. (Zr,Y,Ti, etc); highly incompatible trace el. (Nb, LREE, etc.)	olivine, plagioclase, clinopyroxene phyric basalt	conditions specified in 2+ plus actinolite needles replacing clinopyroxene or interstitial areas	49.3	0.84	16.35	9.37	0.16	8.40	13.26	#1.96	0.03	0.07	99.74	<0.5	60	20.6	15.8	42	0.6	66	120	384.00	239	0.664	8.40	1.00	6.80	2.05