Core Data from the Deep Sea Drilling Project

Leg : 66    Top/Bottom Interval(mm):    0/1220  Analyst: Lundberg, N.
Hole: 487   Sample Midpoint (m)    :   173.22
Core:  20   Top of Core Depth (m)  :   172.00
Sect:  1    Top of Section Depth(m):   172.00

LITHOLOGY: PLAG-OL PHYRIC TO APHYRIC BASALT;

  Piece No.  : PCES 1 (1-5), 2 (6-13), 3 (15-22), 4 (24-26),
               5 (28-31), 6 (34-37), 7 (40-43), 8 (45-51),
               9 (53-60), 10 (62-70), 11 (72-80), 12 (82-90),
               13 (93-96), 14 (97-101), 15 (103-106), 16 (110-115),
               17 (113-121);

  Texture    : FINE-GRAINED,PCES 4-6 APHYRIC,PCES 7+11-13+15-16
               VARIOLITIC;

  Structure  : FRACTURES;

  Alteration : SLIGHTLY TO MOD
               BROWN ALTERATION ZONES RIMMING FRACTURES;

  Comments   : NO INTERBEDDED SEDIMENTS WERE RECOVERED;

  Phenocrysts: PLAGIOCLASE               (    5%)
               Size(mm):       TO 4

               OLIVINE                   (  0-1%)
               Size(mm):       TO 2
               OFTEN ALTERED TO LIGHT ORANGE SECONDARY MINERALS;

  Replacement: UNIDENTIFIED
               Minerals Replaced: OL
               LIGHT ORANGE SECONDARY MINERALS;


Leg : 66    Top/Bottom Interval(mm): 1220/1500  Analyst: Lundberg, N.
Hole: 487   Sample Midpoint (m)    :   173.50
Core:  20   Top of Core Depth (m)  :   172.00
Sect:  1    Top of Section Depth(m):   173.22

LITHOLOGY: DRILLING RUBBLE;

  Texture    : COMPOSED OF SEDIMENT & SMALL BASALT FRAGMENTS WHICH
               ARE STRATIGRAPHICALLY OUT OF PLACE & INTERMIXED BY
               DRILLING;


Leg : 66    Top/Bottom Interval(mm):    0/ 250  Analyst: Lundberg, N.
Hole: 487   Sample Midpoint (m)    :   173.75
Core:  20   Top of Core Depth (m)  :   172.00
Sect:  2    Top of Section Depth(m):   173.50

LITHOLOGY: DRILLING RUBBLE;

  Texture    : SIMILAR TO CORE 20-1(122-150CM);


Leg : 66    Top/Bottom Interval(mm):  250/ 920  Analyst: Lundberg, N.
Hole: 487   Sample Midpoint (m)    :   174.42
Core:  20   Top of Core Depth (m)  :   172.00
Sect:  2    Top of Section Depth(m):   173.75

LITHOLOGY: PLAG-OL PHYRIC TO APHYRIC BASALT;

  Piece No.  : PCES 1A (27-30), 1B (32-36), 1C (36-40), 2 (43-45),
               3 (47-50), 4 (58-60), 5 (58-61), 6 (63-72),
               7 (73-79), 8 (81-86), 9 (88-91);

  Texture    : PCES 1C-6 VARIOLITIC,PCE 9 IS ONLY GLASS RECOVERED
               IN CORE 20;


Leg : 66    Top/Bottom Interval(mm):    0/ 230  Analyst: Lundberg, N.
Hole: 487   Sample Midpoint (m)    :   181.73
Core:  21   Top of Core Depth (m)  :   181.50
Sect:  1    Top of Section Depth(m):   181.50

LITHOLOGY: DRILLING RUBBLE;

  Texture    : MOSTLY BASALT FRAGMENTS & RARE CLASTS OF ZEOL
               (PHILLIPSITE);

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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