Core Data from the Deep Sea Drilling Project

Leg : 64    Depth to Top of Core(m):    76.00    Piece: 1
Hole: 475B  Top/Bottom Interval(mm):   20/  50
Core:   2   Sample Depth:    76.04
Sect:  1    Analyst Name:

Analytical Method(s):
  X-Ray fluorescence  X-Ray fluorescence  X-Ray fluorescence

Alteration    Rock type    Rock name
Moderate      IGNEOUS      OL-PLAG MODERATELY PHYRIC BASALT

SiO2    :   47.2    Al2O3:   16.4    Fe2O3(tot):  10.72
FeO(tot):           Fe2O3:           FeO       :
MgO     :   9.47    CaO  :  11.18    Na2O      :   2.75
K2O     :   0.14    TiO2 :   1.29    MnO       :   0.14
P2O5    :   0.08    LOI  :   0.69    H2O+      :
H2O-    :           CO2  :           SO3       :
S       :           Total: 100.11    Magnesium#:

Comments: SLIGHTLY BROWN ALTERATION RIM
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Fe oxide partitions not specified or analyzed.
H2O+ uncorrected for iron oxidation.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Magnesium number is atomic ration Mg/(Mg+Fe), where Fe is total iron.



Leg : 64    Depth to Top of Core(m):    76.00    Piece:
Hole: 475B  Top/Bottom Interval(mm):  320/ 400
Core:   2   Sample Depth:    76.36
Sect:  1    Analyst Name: Fornari, D.

Analytical Method(s):
  Electron microprobe  Electron microprobe  Electron microprobe

Alteration    Rock type    Rock name
              IGNEOUS      BASALTIC GLASS

SiO2    :  48.06    Al2O3:  18.01    Fe2O3(tot):
FeO(tot):           Fe2O3:   0.93    FeO       :   8.38
MgO     :   8.40    CaO  :  11.36    Na2O      :   3.00
K2O     :   0.14    TiO2 :   1.47    MnO       :   0.17
P2O5    :   0.07    LOI  :           H2O+      :
H2O-    :           CO2  :           SO3       :
S       :           Total:           Magnesium#:   .641

Comments: CR2O3 = .03
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Magnesium number is atomic ration Mg/(Mg+Fe++), where Fe is total iron.



Leg : 64    Depth to Top of Core(m):    85.50    Piece: 1
Hole: 475B  Top/Bottom Interval(mm):   20/  50
Core:   3   Sample Depth:    85.54
Sect:  1    Analyst Name:

Analytical Method(s):
  X-Ray fluorescence  X-Ray fluorescence  X-Ray fluorescence

Alteration    Rock type    Rock name
Moderate      IGNEOUS      OL-PLAG MODERATELY PHYRIC BASALT

SiO2    :   47.2    Al2O3:   16.6    Fe2O3(tot):  10.44
FeO(tot):           Fe2O3:           FeO       :
MgO     :   8.66    CaO  :  11.56    Na2O      :   2.90
K2O     :   0.17    TiO2 :   1.33    MnO       :   0.14
P2O5    :   0.09    LOI  :   1.26    H2O+      :
H2O-    :           CO2  :           SO3       :
S       :           Total: 100.32    Magnesium#:

Comments: MICROPHENOS,SLIGHT ALTERATION RIM AND GLASSY SELVAGE
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Fe oxide partitions not specified or analyzed.
H2O+ uncorrected for iron oxidation.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Magnesium number is atomic ration Mg/(Mg+Fe), where Fe is total iron.



Leg : 64    Depth to Top of Core(m):    95.00    Piece: 1
Hole: 475B  Top/Bottom Interval(mm):   20/  50
Core:   4   Sample Depth:    95.04
Sect:  1    Analyst Name:

Analytical Method(s):
  X-Ray fluorescence  X-Ray fluorescence  X-Ray fluorescence

Alteration    Rock type    Rock name
Fresh         IGNEOUS      OL-PLAG PHYRIC BASALT

SiO2    :   46.8    Al2O3:   16.2    Fe2O3(tot):  10.31
FeO(tot):           Fe2O3:           FeO       :
MgO     :  10.68    CaO  :  11.48    Na2O      :   2.76
K2O     :   0.12    TiO2 :   1.27    MnO       :   0.21
P2O5    :   0.08    LOI  :           H2O+      :
H2O-    :           CO2  :           SO3       :
S       :           Total:  99.88    Magnesium#:

Comments: MICROPHENOS,COULD NOT TELL WHICH PIECE WAS SAMPLED
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Fe oxide partitions not specified or analyzed.
H2O+ uncorrected for iron oxidation.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Magnesium number is atomic ration Mg/(Mg+Fe), where Fe is total iron.

Introduction

Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]

These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 1989 and modified in 2000 by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center (now part of the National Centers for Environmental Information), and collocated World Data Center for Marine Geology and Geophysics, Boulder (now part of the World Data Service for Geophysics). Data were compiled in cooperation with the U.S. Science Support Program, of the Joint Oceanographic Institutions, Inc. (now the Consortium for Ocean Leadership), and the U.S. National Science Foundation.

Please see NOAA's privacy and disclaimer information. Send questions or comments to mgg.info@noaa.gov.

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